Shuttlemax 9.2 Amplifier Head (used)

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Used item:
This item is not subject to our return policy
  • Shuttlemax 9.2 Amplifier Head (used) - Multi View
  • Shuttlemax 9.2 Amplifier Head (used) - with manual
  • Shuttlemax 9.2 Amplifier Head (used) - with pedal
  • Shuttlemax 9.2 Amplifier Head (used) - corner damage
  • Shuttlemax 9.2 Amplifier Head (used) - scratches
  • Shuttlemax 9.2 Amplifier Head (used) - front panel (stock)
  • Shuttlemax 9.2 Amplifier Head (used) - angled (stock)
  • Shuttlemax 9.2 Amplifier Head (used) - back (stock)
Our Low Price: $800.00


Bob bought and used this amazing amp head back when it was a current model. He used it for a bit, but then scaled back to the Streamliner for the simpler user interface.

This amp still has its original box, original manual, and original footswitch. Cosmetically, it's got a fair number of marks, particularly on the bottom, where it has a decent amount of "rack rash," and the top back corner has a bit of a chunky ding (see photos). It's all cosmetic, though, and the amp works as designed with no issues - and the front side of the amp looks very good. Bob also used a Dymo label maker to put the control names on the top front edge of the amp, to help find the right knobs on a dark stage - but that would peel off very easily and should leave no residue behind.

Here's our original writeup of the amp's features:

The amp features a two-channel switchable/blendable FET/Tube preamp, adjustable signal shape circuits, and more knobs than a Bob and Doug Film Festival. All being driven through a monster 900w power amp, in a small chassis weighing less than 9 lbs.

The amp was, we're told, developed in response to a small (but vocal) group of players on online message boards who craved more, more, more - meaning, more tone shaping, more features, more "toys." And Genz-Benz responded - the ShuttleMax 9.2 provides that, for sure. Let's dive in!

Starting at the front end, you've got a high impedance input which provides a good interface with everything from your upright bass, to your passive 4-banger "slab" bass, to your electric upright, and active electronics-equipped 6-string bass guitar. Its built-in active high-pass filter gets rid of some of the ultra-low "junk" and has an RFI filter to reduce noise, providing cleaner, more balanced input.

The input goes to a pair of independent preamp sections; one is a warm tube preamp, the other uses FET circuitry for clean - but not clinical - solid-state goodness. You can choose to use one or the other independently... or for those who like their custard cones "twisted," blend the two together.

Each preamp channel features its own separate gain, volume and EQ controls. So, among many uses for this flexibility would be switching between two different tone settings for different song types, setting one channel with more "cut" and a bit more volume for when you take solos, or having different tone settings for different basses. The tube preamp has a "low/high" switch if you care to infuse some additional tube drive into your tone. The FET channel also has a similar switch to provide a good gain match to your instrument while avoiding unwanted input distortion.

Since I mentioned the tone controls, let's see what's there. Each channel features its own 4-band active EQ; Low, Low Mid, High Mid, and Highs. The two midrange controls are both sweepable, so you can dial in the specific frequencies you wish to attack - and speaking of which, all the EQ controls feature 15db of cut and boost, providing plenty of tone shaping power.

If that's not enough EQ for you, the amp also features the same set of three signal shape circuits featured on the Streamliner and Shuttle amps: Low Frequency Boost, Mid Scoop, and High Frequency Attack. However, on this amp, also included is a level control for each preset, so you can adjust HOW MUCH Boost, Scoop or Attack gets blended into your sound.


I hope you're not too tired of reading, because there is plenty more - turn the amp around to the back, and you've got three separate effects loops; one for the tube channel, one for the FET channel, and one master effects loop. You've also got an AUX IN for mixing in your Mp3 player for jamming along, and a headphone jack for quiet practice. A dedicated tuner out (the mute button on the front of the amp does not effect the tuner out, so silent tuning onstage is easy) is also there. Finally, a DI (Direct Output) on a balanced XLR provides pro-level connections to house PA systems and mixing boards in the studio - and of course, it includes a ground lift, pre-post switch, and mic/line level switching.

Phew! Anything else?


Oh yeah - a really nice footswitch is included, and has buttons for channel switching and mixing, and switches for each of the three signal shape circuits. There's also a jack for an optional footswitch to activate the mute circuit. Finally, a pair of Speakon jacks to plug in your speaker(s).


  • Dual Channels---FET and TUBE Preamps
  • Switchable or Blendable Preamps
  • Input Mute Circuit
  • High and Low Gain Switch per Channel
  • Active 4 Band EQ with Dual Parametric Mids
  • High Current Class D Amplifier Design
  • Adjustable 3 Band Signal Shape Circuits
  • 3 DPM™ Power Management
  • LED Status Indicators
  • Patent Pending P.H.A.T topology
  • Speakon® Speaker Outputs
  • Internal Fan Cooling
  • Full XLR Direct Output Interface
  • Aux. Input
  • Headphone Jack
  • Three Effects Loops (FET Ch; Tube Ch; Master)
  • 115/230 Volt Switchable
  • 5 Position Footswitch Included


  • Power Output: 500W @ 8 ohms; 900W @ 4 ohms
  • Preamp Type: FET/TUBE
  • Weight: 6.75 lbs
  • Dimensions: 3 1/2" x 13 1/2" x 13"
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Warranty Information

All GENZLER AMPLIFICATION products are warrantied to be free from defects in material and workmanship, for a period of 3 years from the date of purchase. The specific warranty coverage below is valid in the US and Canada only. For full international warranty details consult your local dealer for their local warranty policy.

This warranty does not cover normal wear and tear or cosmetic issues incurred from the designed use of the product. This warranty does not cover use of and/or demands beyond the products intended design or specifications. This warranty does not cover products used in rental stock. Products used for rental either at the store level or backline companies are covered for 1 year from the date of purchase. Tubes are warrantied for 90 days.

Except to the extent precluded by State Law, GENZLER AMPLIFICATION specifically excludes from this warranty any responsibility for consequential or special damages.

This warranty is only effective if a copy of the original sales receipt is presented at the time of warranty service.

It is GENZLER AMPLIFICATIONS sole choice to repair or replace, at its option, any defective materials found, provided:
  • The product has not been misused, abused, tampered, altered, or damaged by accident or during shipment.
  • The product has not been modified or repaired or attempted repair by any unauthorized personnel.
  • The product has not been subjected to excessive or insufficient power, i.e. burned or discolored voice coils or crossover components.
  • The product has been returned to Genzler Amplification or its authorized service center, freight pre-paid, together with copy of the original sales receipt, from an authorized dealer.
  • The product has been registered on our website based warranty registration platform within 14 days of the purchase date.
  • The products original serial number is intact and has not been defaced, changed or removed.
This warranty gives you specific legal rights, which vary from state to state.

For warranty service please email:

The customer is responsible for proper packaging and freight to and from a GENZLER AMPLIFICATION warranty service facility. We are not responsible for damages from insufficiently packaged products returned for service.
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