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Dr. Z Trainwreck Airbrake with Licensed Version Trainwreck Logo Master Volume Power Attenuator Power Soak Amp see photo's.

Awesome amp attenuator. Useful for stage or home. Use this with non-master Marshalls, Fenders, Vox, etc. Crank the amp to bring the power section to life (which is where a tube amp shines) and then bring the volume down to reasonable levels. The most versatile attenuator as it works with 4, 8 or 16 ohm amps up to 100 watts.
Comes with a copy of the manual.
This is a Dr. Z Air Brake, a power attenuator that is inserted between the amplifier's output and the speaker cabinet. It allows the user to turn up the amplifier to utilize its harmonically rich output stage distortion, while reducing the signal sent to the speakers. This lowers the overall sound pressure level and is useful when high volume is not required.

There are many power attenuators on the market, based on several different engineering approaches. This is a licensed version that uses the exact same circuit and parts as the original Trainwreck® Airbrake™ designed by Ken Fischer.

All power attenuators by design reduce the interaction between an amplifier's output stage and the speaker(s), which is a critical part of the sound and feel of a tube amp. By reducing the sound pressure level, they also change the human ear's perception of the frequency spectrum.

Accordingly, there is no power attenuator that doesn't change the sound of the amp at all. Some are more natural sounding, some are more compressed, and some thin out the sound.

The Dr. Z sounds very natural and "real" at reasonable levels of attenuation. It allows the user to bring the level of any amp down to very reasonable levels, while retaining it's distinct voice and dynamics. It sounds great.
Item Information: Dr. Z Airbrake Power Attenuator Trainwreck Item is in excellent working condition with a few small marks from use, does not have the original box and packaging. The Z Air Brake has two major applications. One is for stage use; the other is for studio or home use. For stage use, the Z Air Brake is a useful tool to limit your overall dB level at any time during a performance. Example: the beginning of the night (when the club isn't full) click the Air Brake to a level of attenuation to allow for smooth tone at a lower volume level. As the night progresses, reach back and remove degrees of attenuation until the desired level is reached. This will allow you to manage your amp's overall volume without varying from your amp's favorite settings. At home, the Air Brake is useful for lower volume while still allowing for full output tube distortion. The Air Brake has a "bedroom" level control that, when selected, will allow for fine adjustment and maximum attenuation down to 1 watt (with amps less than 100 watts.)
A couple of ideas on where and how to use it...maybe your working on your sound but you live in an apartment and your neighbors don't particular care to hear that unbelievable riff anymore. Keep your amp dialed in the way you want and use the Air Brake to control the overall volume. Or, you're recording in a studio and once again you've got your sound dialed in, but the engineer is telling you to turn down. Not a problem with the Air Brake...you can deliver your unique tonal interpretation and make the engineer happy too. Or, maybe its early in the night at a local club and the room just filled up yet. You can adjust your overall volume to fit the room without compromise to your tone. This unit is like new, and in very good condition. You don’t want to miss this one. Bid with absolute confidence, then get out there and make a name for yourself by practicing quietly with the z air brake by trainwreck, then melt some faces at a packed arena show with your skilled solo's and high voltage rock! "for those about to rock! We salute you!" (#2)

Dimensions/Size: 5" tall, 9" wide, 6" deep. and weighs about 3-4 lbs.

Item Condition: Item is in excellent cosmetic and working condition