SM-900 Amplifier

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SM-900 Amplifier Product code: SKU Manufacturer: SWR Price: $1,599.99

5% discount coupon: Enter AFF01 at checkout for 5% off any purchase

SWR

Overview

If you're wondering which model the pros ask for the most, you've found it. The ultimate SWR amplifier combines a sweet, warm basic tube preamp tone, generous, flexible power output, and enough tone-tweaking capabilities to satisfy even the most demanding knob dialer - all in a convenient two-rackspace configuration. Combine the dual three-band semi-parametric EQ's into a single six-band control, and you've outstripped what's available on many studio consoles. This amp has been earning its richly-deserved reputation for more than 15 years on the biggest stages and in the most prestigious studios in the world. It's no wonder why.

Features: 900 watts mono/400 watts per channel stereo @ 4 ohms, classic SWR tube preamp with Aural Enhancer, master bass and treble controls, dual selectable three-band semi- parametric EQ's, studio-quality XLR out with ground lift and level pad, bi-amp capable with high and low crossover outputs and frequency control, variable limiter, side-chain effects loop with blend control, tuner send, Speakon® and 1/4" speaker outputs. EQ Channel Select footswitch and Speakon-to-Speakon cable for bridge-mono operation included.

19"W x 3.45"H x 13.75"D, 26 lbs.

Features

• Type Mono/Stereo Bass Amplifier Head
• Description Top of the line, 900 watt, feature packed, powerhouse amplifier. Rack mountable with foot switchable EQ section. Can be run mono, stereo or bi-amped.
• Features
  • FRONT PANEL FEATURES:
  • 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
  • Our 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
  • Rack mountable.
  • Bi Amp Crossover Point Control: 100 Hz to 1000 Hz
  • Crossover Slope: 12 dB per octave
  • Rack Handles
  • REAR PANEL FEATURES:
  • 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
  • Speaker Outputs:
  • Two 1/4" jacks each for Left and Right Stereo Out
  • One Speakon® speaker output 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
  • INTERNAL FEATURES:
  • (1) 12AX7 Preamp Tube
  • Cooling fan
• Power Output
  • Bridge/Mono Mode
  • 900 Watts @ 4 Ohms
  • 650 Watts @ 8 Ohms
  • 440 Watts @ 16 Ohms
  • (minimum load = 4 Ohms)
  • Stereo Mode (per side)
  • 400 watts @ 4 Ohms
  • 240 watts @ 8 Ohms
  • 144 watts @ 16 Ohms
  • (minimum load = 2 Ohms)
• Impedance (Ohms) N/A
• Speakers N/A
• Channels 1 Channel with dual switchable EQ banks
• Controls
  • Gain with preamp clip indicator
  • 3-Position EQ selector switch
  • Aural Enhancer
  • Bass
  • EQ 1:
  • 3-Band Semi-Parametric EQ
  • EQ 2:
  • 3-Band Semi-Parametric EQ
  • Crossover Frequency,
  • Balance,
  • Limiter,
  • Treble,
  • Effects Blend,
  • Master volume
• Covering Black steel chassis
• Weight 26 lbs.
• Dimensions
  • Height: 3.45"
  • Width: 19"
  • Depth: 13.75"
  • (2 rack spaces)
• Power Handling N/A
• Tube Complement (1) 12AX7 Preamp Tube
• Accessories Includes 1-Button Footswitch P/N 0066250000
• Cover N/A
• Footswitch Includes 1-Button Footswitch P/N 0066250000
• Frequency Response (Power amplifier): -3dB @ 20Hz and 40KHz
• SPL N/A
• Suggested Speaker Enclosures
  • Megoliath
  • Goliath Senior
  • Big Bertha
  • Goliath III
• Suggested Speaker Combinations
  (2) Goliath III
  • (2) Son Of Bertha
  • (1) Goliath III & (1) Son Of Bertha
  • (1) Goliath III & (1) Big Ben
• Input Impedance
  • Passive/Active Input: 800K Ohms
  • Active Input: 60K Ohms
  • Effects Return: 27K Ohms
• Output Impedance
  • Effects Send: 100 Ohms
  • Tuner Send: 100 Ohms
  • XLR:1.5K Ohms
  • Crossover High and Low Outs: 100 Ohms
• Sensitivity
  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
• Distortion
  • 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