Traynor K4 Keyboard Amp

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Traynor

Tri-amplifies your sound for serious high-fidelity tone.

The K4 amplifier is an advanced and extremely versatile stereo keyboard amp that delivers a wide spectrum of tones. More importantly, it has the ability to sound right with a minimum amount of tweaking. The Traynor K4 consists of three separate, built-in amplifiers, for true stereo operation with a mono-summed woofer. A 200-watt Low Frequency amplifier drives a 12-inch, 200-watt woofer, while a pair of 50 watt amps drive the left and right channels, delivering the mid and high frequencies through a set of 4.5-inch, 30-watt midrange drivers and a pair of 20-watt 2.5-inch compression drivers with horns.

One unique feature of the K4 amp is how Channel 1 utilizes a pair of 12AX7 tubes, one for each channel, left and right. These preamp tubes supply warmth and smooth out the harsh harmonic overtones often associated with many modern Digital keyboards. It also excels at maintaining the warmth and character of vintage synthesizers and organs where it isn't always practical to use the much larger powered speaker cabinets they are typically associated with.

There is also a select switch to toggle between using either the tube or a Solid-State signal path, bypassing the tube on the input altogether, for those times when the cleanest signal path possible is preferred. Channel one also features a foot switchable Tube Overdrive control, for those who like to add a small amount of grit to their playing. Depending on the level, a small amount of warmth right up to full grit can be had from the Tube Overdrive. Natural tube compression is a very desired tone as the subtle dynamics can't be properly emulated by most of today's digital workstations. Use this feature to add some grit to an otherwise sterile keyboard tone to make it a truly vintage, tube-based one. A single button latching footswitch, like the AFS-1 can be used to engage the Lead/Overdrive feature. If a footswitch is connected, it will disable the front panel switch. Additional tonal control can be had thanks to the three band EQ and 5 position (Bypass, Studio, Live, Piano, Organ) selectable voicing presets.

Like Channel One, Channel Two also features its' own Gain control as well as a 3 band EQ. Available inputs include a stereo pair of balanced 1/4-inch TRS inputs and a single XLR, for mono only operation.

Channel Three uses an independent Gain control to set the levels for the stereo pair of balanced 1/4-inch TRS inputs and stereo pair of RCA inputs. All three channels feature their own input clip LED's for simple monitoring of input levels from the darkest of stages and a single Master Volume and Power Switch let you be heard when you want to.

Channel 4 inputs and Gain control can be found on the rear panel. The possibilities are endless with it. Use it to bring in an external click track or drum monitor mix, or get a microphone feed from the FOH or monitor console. The two inputs can even be used for monitoring two different sources if desired. The signal goes directly into the power amplifier, so it bypasses the Master Volume and Line Outs entirely.

Keyboard Amps Series Overview

Designed for working musicians who require rugged, reliable and highly portable equipment, these compact "plug and play" systems deliver the high fidelity needed to bring out the complex sounds of today's synthesizers while faithfully reproducing acoustic-electric instruments, voice, CDs and tapes.

Built in true Traynor fashion, these great sounding combo amplifiers stand up to life on the road and are equipped with active filtering circuits for effective tonal shaping with a minimum of knobs and switches. You get the sound you want quickly and easily from every Traynor amplifier, gig after gig, night after night.

Keyboard Amps Series Characteristics

Traynor backline amplification is designed and built using unparalleled levels of durability and quality found only from the name legendary for its reliability and toughness. Inside every amplifier we use high-grade glass epoxy circuit boards, low-noise metal film resistors, phone jacks with gold plated contacts, chassis metal which is one to two gauges thicker than the competition's and durable plywood construction.

Outside you will find curved, heavy gauge, perforated metal speaker grilles, rugged black leatherette covering and convenient carry handles. Add rigorous factory testing and our unbeatable two year (even if you break it) unlimited transferable warranty* and you can be sure the Traynor K4 amp has got what you need to reliably sound your best for many years to come.

Low distortion at high sound pressure levels

Rock solid plywood construction with rigid internal bracing

Curved, perforated 16 gauge, black painted metal grilles

Black leatherette covering and non-slip rubber feet

Low profile, integral bar handles

Thermal bias sensing protection

XLR, RCA and 1/4" phone jacks with gold-plated contacts

Active filtering circuits for simple, yet effective tonal shaping

High-grade glass epoxy circuit boards and low noise components

Chassis metal one to two gauges thicker than the competition's

Loaded with high quality, custom-design speakers

Consistent box to box production using advanced quality assurance methodology & CAD/CAM technology

Two year (even if you break it) unlimited transferable warranty*


*Warranty valid in U.S.A. and Canada only

Features
  • Front Panel
  • A Master Volume control is located on the front panel along with the Power switch and LED.
  • Front panel controls for Channel 1 include: Two parallel pairs of balanced 1/4-inch TRS inputs for mono or stereo operation
  • Gain, Bass, Mid, Treble controls with a boost/cut of 15db
  • A five position voicing selector (Bypass, Studio, Live, Piano, Organ)
  • Tube/Solid State input switch
  • Lead Level control
  • Overdrive Trim control
  • Lead Bypass switch
  • Input clip LED
  • Front panel controls for Channel 2 include: Parallel pair of balanced XLR (mono only) and stereo balanced 1/4-inch TRS inputs for mono or stereo operation
  • Gain, Bass, Mid, Treble controls
  • Input clip LED
  • Front panel controls for Channel 3 include: Gain control
  • Parallel pair of unbalanced RCA and stereo balanced 1/4-inch TRS inputs for mono or stereo operation
  • Input clip LED
  • Rear panel
  • Channel 4 Monitor
  • Channel 4 has been added as an extra channel for monitoring purposes, the signal does not mix in with the Main stereo bus and thus the Line Out is not affected by it. The input has it own level control. The left and right inputs can even be used as two separate monitoring sources and the signal goes directly into the amplifiers, bypassing the master volume entirely.
  • Rear panel controls for Channel 4 include: Gain control
  • Stereo balanced 1/4-inch TRS inputs for mono or stereo operation
  • Subwoofer Out
  • Subwoofer out is provided via a TRS 1/4-inch jack. This mono signal features no filtering, so it can be used to feed a powered sub, remote powered speakers or any other device requiring a mono-summed Full range signal.
  • Balanced Stereo XLR Line Outs
  • These are used to connect directly to a mixing console, or for direct recording. The Line Out jacks are Pre-Master control, turning the Master control up or down will not have any affect on the level of the Line Out jacks.
  • Ground Lift
  • The ground lift switch is located beside the XLR jacks. It lifts the balanced Line out ground (Pin 1) when pushed in.
  • Footswitch Jack
  • When used in conjunction with any single button latching footswitch, like the AFS-1, the Tube Overdrive mode can be activated or deactivated remotely at will.
  • Cooling system
  • Two 3-inch fans cool the K4, The fans, normally operate at a low speed, the speed increases depending on how hard the amplifier is working. The air intake vent is located at the top of the cabinet and the exhaust vents are located at the front and back of amplifier.
  • Caution: The top vent must be kept clear in order for the air to enter into the amplifiers. The rear and front vents are used to allow the warm air out of the unit.
  • Head Phone Jack

Jam with tube/solid state sounds, stereo/mono speaker array, and plenty of power for your sound. Call or click today to order.

 

K4 Keyboard Amp Specifications:

  • Type: Keyboard Amplifer
  • Cabinet Program Power (Watts): 300
  • Speaker Configuration - LF (Size / Power): 12-inch/200-watts
  • Speaker Configuration - HF (Size / Power): 2x4.5-inch/50-watts / 2x2.5-inch/50-watts
  • Frequency Response (Hz +/-3dB): 20 - 20k
  • Input Channels: 4
  • Channel 1 - inputs: 2 Stereo pairs of 1/4-inch TRS
  • Channel 1 - controls: Gain, 3 band EQ, 5 position voicing, Lead/OD Trim
  • Channel 1 - switches: Lead/Overdrive, Tube/Solid State input select
  • Channel 2 - inputs: Stereo pair 1/4-inch TRS, mono XLR
  • Channel 2 - controls: Gain, 3 band EQ
  • Channel 3 - inputs: Stereo pair of 1/4-inch TRS, stereo RCA
  • Channel 3 - controls: Gain
  • Channel 4 - inputs: Stereo pair of balanced 1/4-inch TRS
  • Channel 4 - controls: Gain
  • Master Volume Control: Yes
  • Input Sensitivity (mV): Ch.1/2 - 500mV / Ch. 3 - 250mV
  • Line Out (type / configuration): Stereo XLR (Post EQ, Pre Master), Ground Lift
  • Line Out Sensitivity (Vrms): 1Vrms
  • LED Indicators: Power, Clip Lead/OD
  • Protection: Thermal
  • Headphone Jack: Yes (Rear)
  • Other Features: Unfilitered mono-summed Subwoofer 1/4-inch output
  • Dimensions (DWH, inches): 15.5 / 23.3 / 19.6
  • Dimensions (DWH, cm): 39.4 / 59 / 50
  • Weight (lbs / kg): 57.3 / 26
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TraynorK4 Keyboard Amp
 
4.8

(based on 4 reviews)

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Reviewed by 4 customers

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(1 of 2 customers found this review helpful)

 
5.0

K4 Professional and Versatile

By midiman

from Undisclosed

Comments about Traynor K4 Keyboard Amp:

One of the best professional amps out there for keyboardists. I have used numerous amps for over 30 years; Peavey KBs, Motion Sound (sill use the KTs for small clubs) and Roland KC series amps running multi-keys and synths. The K4 beats them all period. Tight bass with no muddiness, output is clean and clear with loads of headroom and power. Stereo I/Os are great for the keyboardist going to a board.

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(2 of 2 customers found this review helpful)

 
4.0

Great Sound - Heavy Load

By Ignatius Gerumpany

from Seattle, WA

Comments about Traynor K4 Keyboard Amp:

For an older fellow like myself, this is a heavy beast to move from point A to point B. I tweaked my back a couple of times, and had determined to trade it in for something lighter. But then I started using it more frequently. I run my Nord Electro 2 through it, and all the varied and wonderful voices of my little red keyboard sound splendid through the K4 - acoustic piano, electric pianos, clavichord and B3 emulation. I have decided to work on my back muscles and keep the amp. I also intend to invest in a better cart for it. ISSUES: However, turning the tubes on doesn't make an appreciable difference to my ears. The solo boost jumps pretty hot. The overdrive is either all dirt or not much. I bypass the voicing presets - I just can't hear what they are supposed to be doing. So, you see I have my complaints, though it is possible my own ineptitude plays a part in each of them. The many channels, the rca inputs for running an iPod into it so you can play along with recorded rehearsals, and especially the option of running the band's vocal PA through the 4th channel during shows - with a level pot, no less - are just spectacular. So useful, especially for a one man band set up. I can run the Nord, and both outputs from my Carvin AE-185 acoustic electric AND a vocal mic through this one mythical beast of an amplifier. So, get it, but tone up your sacroiliac while you are waiting for shipment.

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(2 of 2 customers found this review helpful)

 
5.0

Traynor K4

By Tony Tallarico

from Nesconset, NY

Comments about Traynor K4 Keyboard Amp:

The Traynor K4 amp is the best small amp for keyboards I've heard. Great features and sound - built solid. Designed to lean back like a wedge, the sound hits your ears perfectly. The fact that it is a 3-way is why it sounds better than any other "keyboard amp" out there (all others are 2-way, thus missing important frequencies produced by electronic instruments). For local gigs - the K4 is perfect and Music 123 has the best price on the net! When all the other music stores claimed they "had it in stock", Music 123 really did.

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(3 of 4 customers found this review helpful)

 
5.0

Great job Traynor!

By Mark-QCka2

from Midwest

Comments about Traynor K4 Keyboard Amp:

I you're looking for a high quality, great sounding and sexy amp for your board, this is it!! It's look matches it's sound and should be considered a serious contender for all keyboard amps. It has plenty of power, stereo channels (although the stereo field isn't that wide, it's acceptable), and the tubes are a great addition. It's a heavy one but the handles are built into the sides and are very durable. The tonal settings are a nice addition but didn't do much for the sound IMHO. Overall, this amp is a beast. Very powerful, and did I mention the look? Very classy. You may want to get a cover for it at Lecover.com. They have covers specifically for this amp if you're taking it on the road. Great job Traynor.

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