Looking for a superb amp to give your guitars a new voice?  Then look no further.  The A-22 has a  sound that's classic yet unique for players who are seeking something a little different without getting too far away from the tones that started all the excitement.  In the stock configuration, you can achieve rich thick medium-overdrive tones without the need of a stomp box.  With the change of one preamp tube (included), a wider range of clean to crunch tones are available while an overdrive or boost box can send you into high gain territory.

Shown from left to right:  Studio combo, Head with 1 X 12 cabinet, Head with oversized 2 X 12 combo.  See  the Para-Dyne page for new smaller 2 X 12 extension cabinet.

     
This is our new shorter wider 1 X 12 "Club Combo"  It features an open back cabinet and top mounted controls.

SCROLL DOWN FOR SOUND CLIPS AND VIDEO DEMO

DESIGN CONCEPT:
The A-22 produces about 22 watts RMS before clipping from a pair of EL84 output tubes operating in class A/B mode with adjustable fixed-bias.  Three 12AX7s or two 12AX7's and one 12AU7 are used in the preamp circuit and phase inverter circuits.  We can also build this amp with other output wattages ranging from 19 watts to 50 watts.  E-MAIL US for more info.

The design achieves a medium-low power output with aggressive, tight, punchy, thick and warm tone with plenty of midrange and lots of texture.  The amp has a decidedly British vintage hard rock sound with gain level that's a bit higher than a late 60's or early 70's Marshall Super Lead but with a thicker, warmer overdrive tone.  The amp and cabinet are designed to emulate the sound of a big 4X12 cabinet with out all the bulk and extreme volume.  This amp is extra sensitive to touch and to your guitar volume control settings. It has a huge sound, but it does so at reasonable volume levels that are usable in most real-world performance or recording situations!  On the "studio combo" model (pictured above left), the large cabinet contributes to a really big sound with plenty of bottom end.  For a 22 watt amp, it's very loud, just not quite as loud as some 50 watt amps.  In fact, when pushed into heavy overdrive, the output will beover 40 watts.  This means all you have to do is crank the volume control on your guitar and the amp will instantly get the overdrive tone you've been wanting while at the same time, giving you the big volume increase you need for your solos.  With our very usable master volume control, you'll have great overdrive tones in a wide range of volume situations.  Overall, you'll find the amp to be much louder, fatter, punchier and richer sounding than those 18 and 20 watt Marshall clones so many companies are building.  You'll also find several features that most other amps don't have such as bias test points,  heavy duty impedance selector, very high build quality and more.  See below for details.  Click HERE for pricing.


CLICK HERE  For a promotional audio/video presentation of the A-22.  All guitar tracks are recorded on an A-22.

CLICK HERE  For sound clips

CLICK HERE For a Google Video demonstration of the amp being solo with various guitars and amp settings.

Check out the YouTube video of Zac Brown playing the A-22 Live  Click Here

CLICK HERE  to see what people are saying about the A-22

FEATURES:

ALL TUBE CIRCUITRY FOR PURE WARM TUBE SOUND – Your guitar signal does not pass through any transistors or integrated circuits (ICs). 

ALL HAND WIRED CONSTRUCTION – Also sometimes called point to point wiring, the amp is hand-built in Atlanta, GA and constructed with great attention to detail. The A-22 utilizes a very high quality turret board made of a super tough G10 composite.  This glass-epoxy laminate is specified for its extremely high strength and high dimensional stability over temperature.  This material will never warp, melt, or absorb moisture.  There are no copper traces to peel away from the board, crack or melt like printed circuit boards (PCBs) sometimes do.  All wiring and soldering is done by hand and quality-checked to ensure many years of trouble free operation. 

USER CUSTOMIZABLE FOR GREATER VERSATILITY - You can choose either a 12AX7 or 12AU7 for the first preamp stage depending on the amount of gain you prefer.  In addition, the combo cabinet features a 3-piece back that an be configured as closed-back or semi-open for even more tonal versatility.

CUSTOM-WOUND, AMERICAN-MADE TRANSFORMERS – Our transformers are wound to our specifications specifically for the requirements of this amp design.  The result is a very reliable amp that sounds like no other.   The transformers are wound on paper bobbins like in “the good old days” and are rated to withstand extreme heat for high reliability.  The output transformer is wound with several interleaves for optimum balance.  In addition, special (more expensive) types of steel cores are utilized in both transformers for maximum efficiency, lighter weight and superior tone.  The output impedance is switchable to 4, 8 or 16 ohms.

STRAIGHTFORWARD, DEPENDABLE, SINGLE-CHANNEL DESIGN

FRONT PANEL  - High/Low Inputs (9db difference), Volume, Treble (pull for midrange boost), Bass, Presence and a well balanced and usable post phase inverter Master Volume Control.

REAR PANEL - Two standard size fuses, 4/8/16 ohm impedance switch, 2 speaker jacks, and bias test points. 

CUSTOM DESIGNED CABINET – Our cabinets feature a unique design for maximum durability and superior tone.  We use only very-high-grade void-free Baltic Birch ply for the "tolexed" cabinets and select hardwoods for the super-premium cabinets.  The cabinet components are precision cut using high-tech equipment and are hand assembled with care in the USA.  Dovetail joints are used at the corners for maximum strength.  Unlike most other combo amps, the speaker compartment is isolated from the tubes.  This greatly reduces the chances of the tubes being vibrated by the sound pressure waves coming off the back of the speaker therefore reducing tube microphonics, rattling and premature failure. 

CUSTOM DESIGNED CHASSIS – Our chassis is designed specifically for this amp model so that every part can be mounted in the optimal location for lowest noise and highest circuit stability.

OTHER HIGH QUALITY PARTS - We use "Sprague Atom" and "F&T" electrolytic capacitors, Switchcraft jacks and Carling switches.  Our output tube sockets are high-quality ceramic types that are designed to take the extreme heat of fully driven output tubes.  A mixture of Carbon Composition, Metal Film and Metal Oxide resistors are used in the appropriate places for best tone, lowest noise and highest reliability. 

EXTERNAL BIAS TEST POINTS – The A-22 is equipped with external bias test points and an externally accessible adjustment control.  This is because the bias should be adjusted any time the output tubes are replaced in any amp that is not-cathode biased.  This makes output tube replacement fast and economical.  In fact, with a low cost multi-meter and a small screwdriver, you can adjust bias yourself.  This can be a real advantage in case of a tube failure during a performance or recording session.   In addition, the output circuit is designed so that in  case of tube failure, it is extremely unlikely that any other components will be damaged except the fuse. 

EASY TO USE TONE CONTROLS - This is not an amp that requires a lot of tweaking of the tone controls to get a good sound.  You'll get "the tone" at nearly any setting without a lot of fiddling with the dials.  We didn't design unusable extremes into the controls.  Why have controls that go way beyond what sounds good? 

Click Here to see what people are saying about the A-22

Click here for A-22 sound clips

CLICK HERE FOR VIDEO DEMONSTRATION

Click HERE for pricing.

Questions?      E-MAIL US