In the 40 years that I have been teaching all styles of guitar to every type of student, there have been a few questions that come up over and over which seem to be the cause of great concern and anxiety.
The Best Musical Instruments Online In Los Angeles
High on the list is “Am I too old to learn guitar in Palmdale ?I have been anxiously asked this question by a 28 year old student, a 38 year old, a 46 year old, and let’s see…off the top of my head, I can remember students at age 52, 65, 77, and finally, good old Frank who was 84! I have had plenty of experience with this question, and more importantly, with the answer
.I am going to tell you the answer right up front to set your mind at ease, just in case you are one of those guitar students desperately attempting to remain hopeful about your chances of success. Yes, anyone can learn to play the guitar at any age, period and any place in Los Angeles
Jump to navigation Jump to search Guitar Center is an American music retailer chain. It is the largest company of its kind in the United States, with 269 locations. Its headquarters is in Westlake Village, California. Guitar Center oversees various subsidiaries including Music & Arts, GuitarCenter.com, LMI, Giardinelli, Musician.com, Private Reserve Guitars, Woodwind and Brasswind, Music 123, and used to own Harmony Central until its April 2015 sale to Gibson. Founded in Hollywood by Wayne Mitchell in 1959 as The Organ Center, a retailer of electronic organs for home and church use, it became a major seller of Vox electric guitars and guitar amplifiers, changing its name to The Vox Center in 1964. Toward the end of the 1960s, Vox—whose sales derived largely from its association with The Beatles, who made extensive use of its amplifiers—fell in popularity as Marshall amplifier users Eric Clapton and others captured musicians' imaginations. Accordingly, Mitchell once again changed the name, this time to Guitar Center. Guitar Center West LA, Pico & Westwood, Los Angeles The popularity of rock and roll in the 1970s allowed Mitchell to open stores in San Francisco and San Diego, as well as several suburbs of Los Angeles. Ray Scherr, previously the general manager of the San Francisco store, purchased the company from Mitchell in the late 1970s. Scherr owned and operated it until 1996 from its Westlake Village headquarters. Although synthesizer-driven disco and new wave pop sapped rock's audience in the late 1970s, the 1980s "guitar rock" revival led by Van Halen and a concurrent influx of Japanese-produced instruments brought guitar sales to unprecedented levels. Guitar Center took full advantage of this sales bonanza, and by the end of the decade began an ambitious program of expansion across the entire United States. Using its size as leverage over the musical instrument business, it developed into the largest musical instrument retailer in the country, and made an initial public offering of stock in 1997. In 2005, Guitar Center, Inc., started The Fender Music Foundation, a nonprofit organization that supports music education. Activision partnered with Guitar Center in 2006; all purchases made during game play of Guitar Hero, beginning with the second installment, are made in a virtual Guitar Center store. On June 27, 2007, Guitar Center agreed to a $1.9 billion buyout from Bain Capital, totaling $2.1 billion including debt. The deal was led by Goldman Sachs and amounted to a per-share price of $63, or a 26% premium on the June 26 closing price. The deal was approved by shareholders on September 18, 2007, and closed October 9, 2007. In mid-2009 Guitar Center opened the first of its rehearsal and lessons studio facility in Woodland Hills, California. The eight studios with full backline range in size from 350-550 square feet. Guitar Center also hosts annual events such as the Drum Off, King of the Blues, contests, and artist appearances throughout the nation. In 2011, Guitar Center added equipment rentals to the store in San Diego, California. Since, Guitar Center has opened rental departments in ten other existing locations and plans to offer rental services in various other stores across the country. In May 2013, Standard & Poor's cut its debt rating on Bain Capital-owned Guitar Center Holdings Inc to "junk bond" status, citing struggles with "weak operating trends." The corporate credit rating on the company dropped from 'B-' to 'CCC+'. In April 2014, Ares Management took a controlling stake in Guitar Center. Bain Capital, Guitar Center's former owner, retained partial ownership of the company, along with representation on the board. According to Mike Pratt, the retailer's previous chief executive, the deal will reduce Guitar Center's total debt and provide it with the resources to expand its footprint and invest in its business. In August 2014, Guitar Center opened a new 28,000 square foot flagship location in the heart of Times Square in New York City. The grand opening included a celebratory concert featuring the band The Roots. The Guitar Center Times Square location is now the permanent home of Eric Clapton's Blackie Fender Stratocaster, which Guitar Center purchased at a Christie's Crossroads Centre auction in 2004 for $959,000. In April, 2017, Moody's Investors Services revised the outlook on Guitar Center's B2 rating to negative, meaning it could downgrade the rating further into junk territory in the medium tern. The concern is that Guitar Center may be overwhelmed by its $1 billion debt in the face of flat sales in the musical instrument industry as a whole. First debuting in 2010, each episode of Guitar Center Sessions showcases exclusive live performances by noteworthy artists captured in hi-definition at Guitar Center's iconic Hollywood, CA location. Some past guests have included Linkin Park, Saint Motel, Wiz Khalifa, Billy Idol, The 1975, Sum 41, Weezer, Smashing Pumpkins, Peter Gabriel, Alanis Morissette, 311, Megadeth, Snoop Dogg, Soundgarden, Seether, The Cult, CAKE, Jakob Dylan, Blondie, Rodrigo y Gabriela, Bush, Ben Folds Five, Korn, Joan Jett, Cheap Trick, Skylar Grey, Peter Frampton, Frank Turner, Coheed and Cambria, and Jane’s Addiction. Guitar Center Sessions is hosted by Nic Harcourt, and was created, developed and produced by Guitar Center exclusively on DirecTV. Guitar Center Sessions has won several awards, including a Lumiere Award from the International 3D Society for the episodes featuring Jane's Addiction and Peter Gabriel. To celebrate their 50th anniversary, Guitar Center asked Linkin Park to play a show on October 24, 2014; the performance first aired on DirecTV on December 5, 2014. The At: Guitar Center web series (formerly At: Guitar Center podcast) features interviews and intimate performances with some of the biggest names in music. Some past guests have included Travis Barker, Sevendust, T-Pain, Joe Bonamassa, The Crystal Method, Buddy Guy, Daughtry, Jimmy Cliff, Meiko, Rza, Steve Vai, Joe Satriani, Brandi Carlile, and Minus the Bear, The podcasts are available on the iTunes, Zune and BlackBerry networks and on the Guitar Center website. The show is hosted by Nic Harcourt. Connections Made by Guitar Center, a collaboration between 88.5 KCSN Los Angeles and Guitar Center, was a weekly one-hour radio program featuring fresh, new music from across the globe and musical spectrum. Signed or unsigned, the show offered an electric mix of progressive and innovative artists. The show was hosted by radio host and taste maker, Nic Harcourt. The “Guitar Center Legends Collection” consists of four classic guitars made famous by music legends Eric Clapton, Stevie Ray Vaughan, and U2’s The Edge. Guitar Center purchased Clapton’s “Blackie” Fender Stratocaster, his vintage Gibson “ES-335,” and Vaughan’s “Lenny” Stratocaster for over $2.4 million from the Clapton Crossroads Centre charity auction at Christie's New York in 2004. They added The Edge’s cream white Gibson Les Paul Custom after purchasing it for $240,000 at the Music Rising Charity Auction in 2007. Over the years, the collection has been exhibited in one-of-a-kind, “Legends’ Collection” display cases, which provide high level protection and climate control as the instruments tour prestigious musical events and key Guitar Center locations, such as “Guitar Center Road to Crossroads” held at Madison Square Garden in conjunction with Clapton’s Crossroads Guitar Festival in April 2013. In August 2014, Clapton’s Blackie and ES-335 were moved to their new permanent location at Guitar Center’s Times Square flagship location. Clapton's “Blackie” was purchased by Guitar Center for $959,500. Clapton’s Cherry Red Gibson “335,” purchased for $847,500, was used to record Cream’s versions of “Badge” and “Crossroads (from their final live performance in November 1968),” as well as many other historical performances, during his 40 years of ownership. Steve Ray Vaughan’s “Lenny,” which was purchased for $623,500, was used to record his classic love songs including “Lenny” and “Riviera Paradise.” All of the proceeds from these three guitars purchased by Guitar Center were for the benefit of Clapton’s Crossroads Centre charity. The Edge's cream colored 1975 Les Paul Custom (faded from its original white) found fame as a go-to guitar for stage and studio on many of U2’s most famous recordings and performances. In 2005, The Edge partnered with producer Bob Ezrin, Gibson and the Guitar Center Music Foundation (now known as the Fender Music Foundation) to establish Music Rising, a charity founded to benefit musicians whose lives were torn apart by Hurricane Katrina. In 2007, he donated this prized guitar to be auctioned for the cause. The winning bid was $240,000 from Guitar Center ($288,000 including Buyers Premium). Since 1988, Guitar Center has held an annual search for the next great undiscovered drummer. Developed to spotlight the drumming community, Guitar Center’s Drum-Off is the music retailer’s longest running artist-discovery program, providing an outlet for drummers to be recognized for their skill and attain success in their field. For over a quarter of a century, the program has unearthed some of the day’s top undiscovered drummers and provided a platform for established drummers to be acknowledged. Guitar Center’s Drum-Off breaks down into three rounds of store preliminary competitions at 250+ Guitar Center locations nationwide. Every contestant is allowed five minutes of set up time and three minutes to perform. One winner from each store finals competition is chosen to move up to the quarterfinals, (hosted at 30 Guitar Center locations nationwide), followed by semi-finals at five store locations at which point performance time is increased to allow five minutes to each contestant. The winners from these five semifinal locations convene in Los Angeles, CA to compete in Guitar Center’s Drum Off finals in front of a live audience and a panel of celebrity judges. Each contestant is required to perform on a 5-piece acoustic drum kit complete with hardware, cymbals, cowbell, throne and the option to incorporate the Roland SPD-30 Octapad into the competition kit. As of 2016 however, the SPD-30 Octapad will no longer be part of the competition kit. All contestants are evaluated by a panel of independent and credible judges on the following criteria: skills & technique, groove, originality, stage presence, and overall performance. In years past, some of the world’s most renowned drummers have participated in and supported Guitar Center’s Drum-Off, including: Terry Bozzio, Aaron Spears (Usher), Dennis Chambers (Parliament/Funkadelic), Chad Smith (Red Hot Chili Peppers), Steve Gadd, Questlove (The Roots), Travis Barker (Blink-182), Tommy Lee (Motley Crüe), Dave Lombardo (Slayer), Carmine Appice, John Tempesta (The Cult), Taylor Hawkins (Foo Fighters), Steve Smith, Gavin Harrison, Jojo Mayer, Thomas Lang, Josh Freese (Nine Inch Nails, A Perfect Circle), José Pasillas (Incubus), Billy Cobham, Nicko McBrain (Iron Maiden), Stephen Perkins (Jane’s Addiction), Danny Carey (Tool), Brann Dailor (Mastodon), John Blackwell, and more. According to their website, and as of 2017, Guitar Center will no longer sponsor the annual drumoff. Instead, Guitar Center announced it will create a community outreach program specifically geared toward drummers. RockWalk RockWalk detail The Sunset Boulevard location in Los Angeles hosts Hollywood's RockWalk, a hall of fame honoring musical artists. Artists are invited to place their handprints into cement blocks that are put on display at the Guitar Center. Some past inductees have included B'z, Eric Clapton, AC/DC, Aerosmith, Alanis Morissette, B.B. King, Black Sabbath, Carlos Santana, Cheap Trick, Def Leppard , Dick Clark, Ernie Ball, Herbie Hancock, Iron Maiden, James Brown, Jerry Lee Lewis, Jimi Hendrix, Jimmy Page, Joe Satriani, Bonnie Raitt, Johnny Cash, KISS, Les Paul, Little Richard, Lynyrd Skynyrd, Melissa Etheridge, Nancy Wilson, Slash, The Doobie Brothers, The Wrecking Crew, Van Halen, Simon Kirke, as well as countless others. A Guitar Center retail store in Houston In 2000, Guitar Center purchased mail order and Internet retail house Musician's Friend for $50 million, asserting that the merged company was the world's largest seller of musical instruments. Musician's Friend became a wholly owned subsidiary that was headquartered in Medford, Oregon until 2011, when Musician's Friend's headquarters operations were gradually consolidated into Guitar Center's facilities in Westlake Village, California. In 2005, Guitar Center Inc. acquired Music & Arts, the largest school music dealer in the United States, and merged their subsidiary band and orchestral chain American Music Group into Music & Arts (as the company was renamed). Music & Arts was founded in 1952 in Bethesda, Maryland and sells band and orchestra instruments, guitars, keyboards, drum sets, printed sheet music, and related supplies. In the summer of 2006, Guitar Center purchased four stores in Texas from the popular South Texas and Central/South American company, Hermes. In February 2007, the direct response division of Guitar Center, Musician's Friend, purchased assets of the Indiana-based company Dennis Bamber, Inc., which included leading band and orchestra retailer, Woodwind and Brasswind, plus Music 123 and Lyons Music. There was a television series known as Guitar Center Sessions, which featured artists such as 311, Bad Religion, and Smashing Pumpkins.
Jump to navigation Jump to search An instrument amplifier is an electronic device that converts the often barely audible or purely electronic signal of a musical instrument into a larger electronic signal to feed to a loudspeaker. An instrument amplifier is used with musical instruments such as an electric guitar, an electric bass, electric organ, synthesizers and drum machine to convert the signal from the pickup (with guitars and other string instruments and some keyboards) or other sound source (e.g, a synthesizer's signal) into an electronic signal that has enough power, due to being routed through a power amplifier, capable of driving one or more loudspeaker that can be heard by the performers and audience. Combination ("combo") amplifiers include a preamplifier, a power amplifier, tone controls, and one or more speakers in a cabinet, a housing or box usually made of hardwood, plywood or particleboard (or, less commonly, moulded plastic). Instrument amplifiers for some instruments are also available without an internal speaker; these amplifiers, called heads, must plug into one or more external speaker cabinets. Instrument amplifiers also have features that let the performer modify the signal's tone, such as changing the equalization (adjusting bass and treble tone) or adding electronic effects such as intentional distortion/overdrive, reverb or chorus effect. A Fender "combo" amplifier. The combination amplifier is a preamplifier, power amplifier and tone controls and one or more loudspeakers or drivers mounted in a portable wooden cabinet. This amp's sound is being picked up with a microphone in a recording studio. Instrument amplifiers are available for specific instruments, including the electric guitar, electric bass, electric/electronic keyboards, and acoustic instruments such as the mandolin and banjo. Some amplifiers are designed for specific styles of music, such as the "traditional"-style "tweed" guitar amplifiers, such as the Fender Bassman used by blues and country music musicians, and the Marshall amplifiers used by hard rock and heavy metal bands. Unlike home "hi-fi" amplifiers or public address systems, which are designed to accurately reproduce the source sound signals with as little harmonic distortion as possible and without changing the tone or equalization (at least not unless the hi-fi owner adjusts it themselves with a graphic equalizer), instrument amplifiers are often designed to add additional tonal coloration to the original signal, emphasize (or de-emphasize) certain frequencies (most electric guitar amps roll off the very high frequencies), and, in the case of guitar amplifiers designed for electric guitar or Hammond organ, offer the capability to intentionally add some degree of "overdrive" or distortion to the tone. The two exceptions are keyboard amplifiers designed for use with digital pianos and synthesizers and "acoustic" instrument amplifiers for use with acoustic guitar or fiddle in a folk music setting, which typically aim for a relatively flat frequency response (i.e., no added colouration of the sound) and little or no distortion of the signal. Main article: Guitar amplifier A Vox AC30 used by The Beatles A guitar amplifier amplifies the electrical signal of an electric guitar (or, less commonly, with acoustic amplifiers, an acoustic guitar) so that it can drive a loudspeaker at sufficient volume for the performer and audience to hear. Most guitar amplifiers can also modify the instrument's with controls that emphasize or de-emphasize certain frequencies and add electronic effects. String vibrations are sensed by a suitable microphone or pickup, depending on the type of guitar. For electric guitars, strings are almost always made of metal, and the pickup works by electro-magnetic induction (these are called magnetic pickups; they are the most widely used type of pickup on electric guitars). Acoustic guitars do not usually have a built-in pickup or microphone, at least with entry-level and beginner instruments. Some acoustic guitars have a small condenser microphone mounted inside the body, which designed to convert acoustic vibrations into an electrical signal, but usually they do so from direct contact with the strings (replacing the guitar's bridge) or with the guitar's body, rather than having a membrane like general-purpose microphones. Acoustic guitars may also use a piezoelectric pickup, which converts the vibrations of the instrument into an electronic signal. More rarely, a magnetic pickup may be mounted in the sound hole of an acoustic guitar; while magnetic pickups do not have the same acoustic tone that microphones and piezo pickups can produce, magnetic pickups are more resistant to acoustic feedback. A small Gibson "combo" amplifier. Standard amplifiers, such as the Fender "tweed"-style amps (e.g., the Fender Bassman) and Gibson amps, are often used by traditional rock, blues, and country musicians who wish to create a "vintage" 1950s-style sound. They are used by electric guitarists, pedal steel guitar players, and blues harmonica ("harp") players. Combo amplifiers such as the Fender Super Reverb have powerful, loud tube amplifiers, four 10" speakers, and they often have built-in reverb and "vibrato" effects units. Smaller guitar amps are also available, which have fewer speakers (some have only one speaker) and lighter, less powerful amplifier units. Smaller guitar amps are easier to transport to gigs and sound recording sessions. Smaller amps are widely used in small venue shows (nightclubs) and in recordings, because players can obtain the tone they want without having to have an excessively loud volume. One of the challenge with the large, powerful 4x10 Fender Bassman-type amps is that to get the tone a player wants, she has to turn up the amp to too loud a volume. These amps are designed to produce a variety of sounds ranging from a clean, warm sound (when used in country and soft rock) to a growling, natural overdrive, when the volume is set near its maximum, (when used for blues, rockabilly, psychobilly, and roots rock). These amplifiers usually have a sharp treble roll-off at 5 kHz to reduce the extreme high frequencies, and a bass roll-off at 60–100 Hz to reduce unwanted boominess. The nickname "tweed" refers to the lacquered beige-light brown fabric covering used on these amplifiers. The smallest "combo" amplifiers, which are mainly used for individual practice and warm-up purposes, may have only a single 8" or 10" speaker. Some harmonica players use these small combo amplifiers for concert performances, though, because it is easier to create natural overdrive with these lower-powered amplifiers. Larger combo amplifiers, with one 12 inch speaker or two or four 10 or 12 inch speakers are used for club performances and larger venues. For large concert venues such as stadiums, performers may also use an amplifier "head" with several separate speaker cabinets (which usually contain two or four 12" speakers). A 3×6 stack of mock Marshall guitar cabinets for Jeff Hanneman of Slayer Electric guitar amplifiers designed for heavy metal are used to add an aggressive "drive", intensity, and "edge" to the guitar sound with distortion effects, preamplification boost controls (sometimes with multiple stages of preamps), and tone filters. While many of the most expensive, high-end models use 1950s-style tube amplifiers (even in the 2000s), there are also many models that use transistor amplifiers, or a mixture of the two technologies (i.e., a tube preamplifier with a transistor power amplifier). Amplifiers of this type, such as Marshall amplifiers, are used in a range of the louder, heavier genres of rock, including hard rock, heavy metal, and hardcore punk. This type of amplifier is available in a range of formats, ranging from small, self contained combo amplifiers for rehearsal and warm-ups to heavy "heads" that are used with separate speaker cabinets—colloquially referred to as a "stack." In the late 1960s and early 1970s, public address systems at rock concerts were used mainly for the vocals. As a result, to get a loud electric guitar sound, early heavy metal and rock-blues bands often used "stacks" of 4x12" Marshall speaker cabinets on the stage. In 1969, Jimi Hendrix used four stacks to create a powerful lead sound, and in the early 1970s by the band Blue Öyster Cult used an entire wall of Marshall Amplifiers to create a roaring wall of sound that projected massive volume and sonic power. In the 1980s, metal bands such as Slayer and Yngwie Malmsteen also used "walls" of over 20 Marshall cabinets. However, by the 1980s and 1990s, most of the sound at live concerts was produced by the sound reinforcement system rather than the onstage guitar amplifiers, so most of these cabinets were not connected to an amplifier. Instead, walls of speaker cabinets were used for aesthetic reasons. Amplifiers for harder, heavier genres often use valve amplifiers (known as "tube amplifiers" in North America) also. Valve amplifiers are perceived by musicians and fans to have a "warmer" tone than those of transistor amps, particularly when overdriven (turned up to the level that the amplifier starts to clip or shear off the wave forms). Instead of abruptly clipping off the signal at cut-off and saturation levels, the signal is rounded off more smoothly. Vacuum tubes also exhibit different harmonic effects than transistors. In contrast to the "tweed"-style amplifiers, which use speakers in an open-backed cabinet, companies such as Marshall tend to use 12" speakers in a closed-back cabinet. These amplifiers usually allow users to switch between "clean" and distorted tones (or a rhythm guitar-style "crunch" tone and a sustained "lead" tone) with a foot-operated switch. A 2 x 10" bass speaker cabinet stacked on top of a 15" cabinet, with separate bass amplifier "head" unit Bass amplifiers are designed for bass guitars or more rarely, for upright bass. They differ from amplifiers for the regular (and comparatively higher-pitched) electric guitar in several respects. They have extended low frequency response and tone controls optimised for bass instruments, which produce pitches of 41 Hz, in the case of a standard four-string electric bass or double bass, or even lower for five- or six-string electric basses. Higher-cost bass amplifiers sometimes include built-in bass effects, which are electronic effects units designed for electric bass or more rarely, for upright bass. Common built-in effects include audio compressor or limiter features, which help to keep the amplifier from doing unwanted distorting at high volume levels and potentially damaging the speakers; equalizers; and in some amps from the 1980s and more commonly in the 2000s, bass overdrive. Bass amps may provide an XLR DI output for plugging the bass amp signal directly into a mixing board or PA system. Larger, more powerful bass amplifiers (300 or more watts) are often provided with internal or external metal heat sinks and/or fans to help keep the amplifier cool. Speaker cabinets designed for bass usually use larger loudspeakers (or more loudspeakers, in the case of the popular 4x10" cabinets, which contain four 10" speakers) than the cabinets used for other instruments, so that they can move the larger amounts of air needed to reproduce low frequencies. Bass players have to use more powerful amplifiers than the electric guitarists, because deep bass frequencies take more power to amplify. As such, in a band in which the electric guitar player uses a 50 watt guitar amp, the bass player typically uses a 200 watt to 300 watt bass amp. While the largest speakers commonly used for regular electric guitar are 12" speakers, electric bass speaker cabinets often use 15" speakers. Bass players who play styles of music that require an extended low-range response, such as death metal, sometimes use speaker cabinets with 18" speakers or add a large subwoofer cabinet to their rig. Speakers for bass instrument amplification tend to be heavier-duty than those for regular electric guitar, and the speaker cabinets are typically more rigidly constructed and heavily braced, to prevent unwanted buzzes and rattles. Bass cabinets often include bass reflex ports, vents or openings in the cabinet, which improve the bass response and low-end, especially at high volumes. A small keyboard amplifier suitable for at-home practice capable of mixing the inputs from two keyboards. A keyboard amplifier, used for the stage piano, synthesizer, clonewheel organs and similar instruments, is distinct from other types of amplification systems due to the particular challenges associated with keyboards; namely, to provide solid low-frequency sound reproduction and crisp high-frequency sound reproduction. It is typically a combination amplifier that contains a two, three, or four-channel mixer, a pre-amplifier for each channel, equalization controls, a power amplifier, a speaker, and a horn, all in a single cabinet. Notable exceptions include keyboard amplifiers for specific keyboard types. The vintage Leslie speaker cabinet and modern recreations, which are generally used for Hammond organs, use a tube amplifier that is often turned up to add a warm, "growling" overdrive. Some electric pianos have built-in amplifiers and speakers, in addition to outputs for external amplification. These amplifiers are intended for acoustic instruments such as violin ("fiddle"), mandolin, and acoustic guitar—especially for the way musicians play these instruments in quieter genres such as folk and bluegrass. They are similar to keyboard amplifiers, in that they have a relatively flat frequency response and avoid tonal coloration. To produce this relatively "clean" sound, these amplifiers often have very powerful amplifiers (up to 800 watts RMS), to provide additional "headroom" and prevent unwanted distortion. Since an 800 watt amplifier built with standard Class AB technology would be heavy, some acoustic amplifier manufacturers use lightweight Class D, "switching amplifiers." Acoustic amplifier designs strive to produce a clean, transparent, "acoustic" sound that does not—except for reverb and other effects—alter the natural instrument sound, other than to make it louder. Amplifiers often come with a simple mixer to blend signals from a pickup and microphone. Since the early 2000s, it is increasingly common for acoustic amplifiers to provided digital effects, such as reverb and compression. Some also contain feedback-suppressing devices, such as notch filters or parametric equalizers. Instrument amplifiers have a different purpose than 'Hi-Fi' (high fidelity) stereo amplifiers in radios and home stereo systems. Hi-fi home stereo amplifiers strive to accurately reproduce signals from pre-recorded music, with as little harmonic distortion as possible. In contrast, instrument amplifiers are add additional tonal coloration to the original signal or emphasize certain frequencies. For electric instruments such as electric guitar, the amplifier helps to create the instrument's tone by boosting the input signal gain and distorting the signal, and by emphasizing frequencies deemed desirable (e.g., low frequencies) and de-emphasizing frequencies deemed undesirable (e.g., very high frequencies). In the 1960s and 1970s, large, heavy, high output power amplifiers were preferred for instrument amplifiers, especially for large concerts, because public address systems were generally only used to amplify the vocals. Moreover, in the 1960s, PA systems typically did not use monitor speaker systems to amplify the music for the onstage musicians. Instead, the musicians were expected to have instrument amplifiers that were powerful enough to provide amplification for the stage and audience. In late 1960s and early 1970s rock concerts, bands often used large stacks of speaker cabinets powered by heavy tube amplifiers such as the Super Valve Technology (SVT) amplifier, which was often used with eight 10" speakers. However, over subsequent decades, PA systems substantially improved, and used different approaches, such as horn-loaded "bass bins" (in the 1980s) and subwoofers (1990s and 2000s) to amplify bass frequencies. As well, in the 1980s and 1990s, monitor systems substantially improved, which helped sound engineers provide onstage musicians with a better reproduction of their instruments' sound. As a result of improvements to PA and monitor systems, musicians in the 2000s no longer need huge, powerful amplifier systems. A small combo amplifier patched into the PA suffices. In the 2000s, virtually all sound reaching the audience in large venues comes from the PA system. Onstage instrument amplifiers are more likely to be at a low volume, because high volume levels onstage make it harder for the sound engineer to control the sound mix. As a result, in many large venues much of the onstage sound reaching the musicians now comes from in-ear monitors, not from the instrument amplifiers. While stacks of huge speaker cabinets and amplifiers are still used in concerts (especially in heavy metal), this is often mainly for aesthetics or to create a more authentic tone. The switch to smaller instrument amplifiers makes it easier for musicians to transport their equipment to performances. As well, it makes concert stage management easier at large clubs and festivals where several bands are performing in sequence, because the bands can be moved on and off the stage more quickly. Instrument amplifiers may be based on thermionic ("tube" or "valve") or solid state (transistor) technology. Vacuum tubes were the dominant active electronic components in amplifiers from the 1930s through the early 1970s, and tube amplifiers remain preferred by many musicians and producers. Some musicians feel that tube amplifiers produce a "warmer" or more "natural" sound than solid state units, and a more pleasing overdrive sound when overdriven. However, these subjective assessments of the attributes of tube amplifiers' sound qualities are the subject of ongoing debate. Tube amps are more fragile, require more maintenance, and are usually more expensive than solid state amps. Tube amplifiers produce more heat than solid state amplifiers, but few manufacturers of these units include cooling fans in the chassis. While tube amplifiers do need to attain a proper operating temperature, if the temperature goes above this operating temperature, it may shorten the tubes' lifespan and lead to tonal inconsistencies. A Trace Elliot "Bonneville" tube amplifier as seen from the rear view: note the vacuum tubes extending into the wooden cabinet. By the 1960s and 1970s, semiconductor transistor-based amplifiers began to become more popular because they are less expensive, more resistant to bumps during transportation, lighter-weight, and require less maintenance. In some cases, tube and solid-state technologies are used together in amplifiers. A common setup is the use of a tube preamplifier with a solid-state power amplifier. There are also an increasing range of products that use digital signal processing and digital modeling technology to simulate many different combinations of amp and cabinets. The output transistors of solid-state amplifiers can be passively cooled by using metal fins called heatsinks to radiate away the heat. For high-wattage amplifiers (over 800 watts), a fan is often used to move air across internal heatsinks. The most common hybrid amp design is to use a tube preamp with a solid state power amplifier. This gives users the pleasing preamp and overdrive tone of a tube amp with the lowered cost, maintenance and weight of a solid state power amp.
Did you know that when you picked up your acoustic guitar, you're picking up an instrument with 5,000 years of history attached to it? Acoustic guitars are descendants of stringed instruments that were found in a variety of cultures thousands and thousands of years ago. As civilizations merged and the world became smaller, the guitar began taking on a unified shape and style. Since then, there has been a lineal evolution of several hundreds of years of instruments that can be directly compared to today's acoustic guitars.The Medieval PeriodDuring the Medieval Period of European history, there were several different forms of guitars. These guitars had between three and five strings and were much smaller than the guitars we know today. There were variations of these instruments which had pairs of strings, known as courses. The popular guitars of this period were commonly separated into two groupings. The first, the Guitarra Latina was likely developed from Spain, while the Guitarra Morisca was brought to Spain by the Moorish culture.The Renaissance and BeyondWhile in the Middle Ages, the guitar instruments were not terribly popular, being overshadowed by other contemporary instruments, in the Renaissance the guitar began to take a real hold. It was in Italy in 1779 that the first six string guitar was created. Gaetano Vinaccia created this instrument in Naples. Following that, the man known as the "Father of Modern Guitar" made his permanent mark on the course of the guitar and how it would be designed and played.Antonio de Torres Jurado made many key changes that in essence from the creation of what is known today as the modern classical guitar. Among these changes were the design elements that are recognizable as an acoustic or classical guitar today. The body was made larger and wider to help make sound travel farther and be louder, while the construction was also sturdier, more complete and more technically savvy.The Acoustic GuitarThe instrument that Antonio de Torres created and made popular was the Classical guitar. The acoustic guitar is commonly misinterpreted as being the same as the Classical guitar. This is not true, there are many key differences in the design of these two separate guitars. The most important of which is that the acoustic guitar has steel strings, while the Classical guitar is strung with nylon strings.The body was also made larger and sturdier still. The acoustic guitar was much better for performing in larger areas as it was increasingly louder than the Classical guitar; the two guitars also produce different ranges and textures of sounds which various styles of music correspond to.The acoustic guitar was actually developed in America from European immigrants. The last major development of the acoustic guitar is the electrical-acoustic guitar. These acoustic guitars can be plugged into an amplifier for increased volume or can be left unplugged and played as is.So next time you pick up an acoustic guitar, remember the history you hold in your hands.
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