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Genz Benz STREAMLINER 900 Owner's Manual

Genz Benz STREAMLINER 900 Owner's Manual

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Owner's Manual
PRODUCT DESCRIPTION – The Streamliner™ 900 bass amplifier has been manufactured to the highest degree of
engineering standards and practices, combining our patented circuitry in a unique blend of classic and leading-edge
technologies. This compact design blends a simple, intuitive and versatile high voltage, 3 tube, 6 stage classic style
analog preamp with an internationally proven high performance Class D power amplifier. This Class D amplifier
and SMPS module is enhanced with our PATENTED P.H.A.T. (Proprietary Heat Abatement Technology) topology.
This delivers robust and reliable, high output performance in a tremendously compact and convenient package.
The result is a versatile bass amp that exudes fat, rich tones while remaining very articulate. The All Tube Class A
preamp operates at over 300 volts and can be used to add a little warmth to your tone or dialed up a little to provide
a wide range of natural tube overdrive.
Our simple "streamlined" objective was to build an amp that allows the player to focus more on their playing
style and less on adjusting the knobs on their amplifier. So, whether you're a straight ahead 4 string player or an
extended range expressionist, your voice will come through.
The Streamliner™ 900 features a rugged chassis with solid extruded aluminum panels and a faceplate that is CNC
machined from solid billet aluminum. The entire chassis is then brushed and anodized in a Tungsten finish. The
chassis is designed for roadworthy durability, superior fit and finish.
Simply put, this 900 watt bass amplifier offers a more streamlined approach to finding your voice, yet still carries
forth the GENZ BENZ reputation for performance, reliability and innovation.


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Summary of Contents for Genz Benz STREAMLINER 900

  • Page 1 Owner’s Manual PRODUCT DESCRIPTION – The Streamliner™ 900 bass amplifier has been manufactured to the highest degree of engineering standards and practices, combining our patented circuitry in a unique blend of classic and leading-edge technologies. This compact design blends a simple, intuitive and versatile high voltage, 3 tube, 6 stage classic style analog preamp with an internationally proven high performance Class D power amplifier.
  • Page 2: Front Panel

    FRONT PANEL INPUT – The Streamliner™ 900 is equipped with a ¼” unbalanced instrument input directly feeding a conventional tube voltage amplifier stage. The input sensitivity range is from 15 mV to 1.6 volts with an input impedance of ~1M ohms.
  • Page 3 EQUALIZATION – The Streamliner™ 900 contains a 3 band equalizer with a user switchable midrange center frequency control. This equalizer is best described by breaking it into its component parts, the shelving bass/treble section and the midrange band-pass section. The Bass and Treble shelving filters are modified passive designs based on the classic Baxandall topology that was developed in the 1950’s by Peter Baxandall.
  • Page 4: Rear Panel

    REAR PANEL DIRECT OUTPUT – An XLR balanced direct output is provided for connection to a PA system or directly into a recording studio console or D/A converter. This signal comes directly from the Tube buffered input stage to the Direct Output.
  • Page 5 POWER AMPLIFIER – The Streamliner™ 900 uses a state of the art, Class D power amplifier design and a high frequency switch-mode power supply (SMPS) to achieve unprecedented high performance and lightweight packaging. Switch-mode power supplies convert the AC line directly to high voltage DC, then the precision PWM (pulse width modulation) inverter creates a new AC power signal at a frequency more than 1000 times higher than the original wall frequency of 50/60Hz.
  • Page 6: Specifications

    Specifications STM-900 (Product covered under U.S. Patent#8,130,495.) Rated Power: 500 Watts @ 8 ohms 900 Watts @ 4 ohms Dimensions: 3 ¼” H x 10”W x 11 7/8”D Weight: 6.5 LBS SAFE OPERATING REQUIREMENTS: • Never set an amplifier on anything that will tip over or collapse under its weight. •...
  • Page 7: Block Circuit Diagram

    BLOCK CIRCUIT DIAGRAM The Instrument input feeds a conventional grounded cathode voltage amplifier which is then followed by a second grounded cathode voltage amplifier stage. The second voltage amplifier feeds a cathode follower pair that makes up the Baxandall inspired, tube based, Bass and Treble shelving equalization and active feedback type boost/cut midrange EQ network.