• Used SWR SM-900

Used SWR SM-900


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Product details

This amp was the amp to rule them all from the mid '90s to around 2010. Fender shelved the SWR brand, but this was the most versatile and one of the loudest amps available. It can do it all, and in mono, stereo, or bi-amped. This particular amp is nearly immaculate save for a little rack screw scratching on the rack ears. Locally owned and not played very much. It's a classic amp that's still as modern as any other amp on the market today.

The SWR SM-900 Bass Amp has the power, the sound, and the versatility bass players dream of. It can be run mono, stereo, or biamped and delivers 350W RMS stereo and 800W mono into 4 ohms. It has 2 independent and footswitchable 3-band, semi-parametric EQs, sidechain stereo and mono effects loops, an effects blend control, tuner send, adjustable limiter, a built-in crossover, and an XLR record out with pad and ground lift. Fan cooled, rackmountable. This one is in good condition with some rack rash. The "on" LED is intermittent, but the amp works and sounds amazing.

  • All tube preamp gain stages
  • Dual independent input jacks compatible for both active and passive instruments
  • Gain control with LED peak clipping indicator
  • Limiter with variable threshold control
  • Exclusive Aural Enhancer circuitry
  • Master volume control w/clip LED indicator
  • Active bass and treble controls
  • 2 independent switchable
  • 3-band semi-parametric EQs
  • EQ footswitch
  • Effects blend control
  • Tuner send
  • Electronic crossover
  • Rackmountable
  • Bi Amp Crossover Point Control: 100Hz to 1000Hz
  • Crossover Slope: 12 dB per octave
  • Rack Handles
  • Stereo and Mono Effects Loop
  • Balanced XLR Output with select switch for Line or Direct Mode
  • Ground lift & pad control
  • High and Low Crossover Outputs
  • Power Amp Assign Switch selects Bridge or Stereo Mode
  • 2 - 1/4" jacks each for Left and Right Stereo Out
  • One Speakon jack for Left and Right Side Output
  • One Speakon Output Jack for Mono Operation
  • Speaker fuses (x2): 3AG, 10 Amp, Fast Blo
  • Line Fuse: 3AG, 8 Amp, Slow Blo
  • On/Off Switch
  • (1) 12AX7 Preamp Tube
  • Cooling fan
  • FREQUENCY RESPONSE: (Power amplifier): -3dB @ 20Hz and 40KHz
  • Full output, 8 ohm load, 100Hz
  • Passive Input Jack: 50 millivolts
  • Active Input Jack: 200 millivolts
  • Power Amplifiers (Effects Return Jack "in"):1.6 volts
  • Power Amplifiers (Effects Return Jack "in"): 0.03% THD
  • I.M. Distortion: 0.06%
  • System Distortion
  • (Gain and Master Volume full, Enhancer at minimum
  • and Tone controls set flat): 0.4% THD
  • SIGNAL TO NOISE RATIO: -75dB (<8 millivolts typical)
    EQUIVALENT INPUT NOISE: 8.9 microvolts
  • Passive/Active Input: 800kOhms
  • Active Input: 60kOhms
  • Effects Return: 27kOhms
  • Effects Send: 100 Ohms
  • Tuner Send: 100 Ohms
  • XLR:1.5kOhms
  • Crossover High and Low Outs: 100 Ohms

  • Returns

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