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Genz Benz Streamliner 900 STM-900 900W Bass Amp Head  

Product #H70983

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Item Note:

This product has been discontinued but may be available as a Open Box item.

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Genz Benz

Tube preamp, 900W of power, and a simplified yet powerful tone stack.

The Streamliner™ STM-900 bass amp head from Genz Benz boasts a 300-volt, all-tube Class A preamp driven by three 12AX7 preamp tubes utilizing six gain stages. The STM-900's preamp design features an intuitive and highly effective tone network which is a unique blend of a modified passive Baxandall network for the bass and treble along with an active, tube-driven mid filter with selectable mid frequencies. The versatile all-tube preamp exudes a fat and rich tone that remains articulate. It can be used to simply add warmth to your natural tone or it can be dialed in to provide a wide range of natural tube overdrive.

The Streamliner™ 900 also features proprietary 3 Dimensional Power Management analog technology that adds heft and girth to each individual note while enhancing the amplifier;s responsiveness and headroom. It provides the dynamic and three-dimensional tone and feel of an all-tube power amp design.

With its solid extruded aluminum panels, CNC machined solid billet aluminum faceplate and smooth-radius edges the Streamliner™ 900 chassis emanates the ruggedness and strength of a world-class touring machine. This brushed aluminum chassis is finished in an anodized Tungsten finish.

The powerhouse behind the Streamliner™ 900 is a Class D amplifier and SMPS module, enhanced with patent-pending P.H.A.T. (Proprietary Heat Abatement Technology) topology. This delivers robust and reliable, high output performance in a tremendously compact and convenient package.

Simply put, the new design of the STM-900 offers a more streamlined approach to finding your voice, yet it still carries forth the GENZ BENZ reputation for performance, reliability, and innovation.

  • 500 watts @ 8 ohms; 900 watts @ 4 ohms
  • SMPS and Class D power amplifier design
  • 300-volt, all-tube Class A preamp with 3 - 12AX7 tubes
  • Modified passive Baxandall EQ for the lows and highs
  • Active tube-driven mid EQ
  • Selectable 3-position mid frequencies: 220, 600, 2.5K Hz
  • Input mute
  • Hi Gain switch
  • Master volume
  • 3DPM™ power management
  • Patent-pending P.H.A.T topology
  • Full direct output interface
  • Effects loop
  • Headphone out
  • Aux input
  • Dual Speakon outputs
  • Variable-speed fan cooling
  • Patent-pending P.H.A.T. topology

A new level of power with simple, effective tone controls from Genz Benz. Order now.


Streamliner 900 STM-900 900W Bass Amp Head Specifications:

  • 10"W x 3-1/4"H x 11-7/8"D
  • 7 lb.
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by PowerReviews
Genz BenzStreamliner 900 STM-900 900W Bass Amp Head

(based on 1 review)

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Reviewed by 1 customer

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(1 of 1 customers found this review helpful)


Get This, You won't be disappointed


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Comments about Genz Benz Streamliner 900 STM-900 900W Bass Amp Head:

Have owned and gigged with this amp for about 3 months now, so I have had some time to get acquainted with it. Its a fantastic amp, well worth the money. I rate it as high as you can go on the scale. Gives you a great tubey clean tone signature, that then is very easy to dirty up to your liking with the turn of a single gain/overdrive knob. All you have to do is watch Ed Friedland's review of this amp on Youtube, that's what sold me, and it will sell you as well. It's designed for "point and shoot", but you can also get a little creative with some knob twidling. I have yet to find a setting that I don't especially like, and lots of settings that I love. I play both passive and active basses thru this amp, and pair this with either Bergantino or Genz Benz cabs, both of which pair up nicely, to my ears at least. Get this, you won't be disappointed.

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