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SWR SM-500
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  • Obsolete
SWR SM-500

This product has been discontinued. Please contact our sales department for help in selecting a similar replacement.

SWR SM-500

Overview

The one that started it all. The SM-500 is the descendant of the original SWR classic amplifier, the world-famous SM-400. With the original SWR tube preamp, and the trademark graphic/semi-parametric four-band EQ, bassists can dial in the sweet spot of each string on a bass guitar, emphasize the correct lows, mids and highs for their instrument, and bring out the key qualities of the fundamental note no matter what the playing situation may be. Over the years, we've added features like a side-chain effects loop, a stereo master volume control, and transparency (for the crystalline highs) – but, essentially this is the same amp that started a revolution in bass amplification twenty years ago ... and nothing else sounds quite like it.

Features: 500 watts mono/250 watts per channel stereo @ 4 ohms, classic SWR tube preamp with Aural Enhancer™, master bass, treble and transparency controls, four-band semi-parametric/graphic EQ, studio-quality XLR out with ground lift and level pad, variable limiter, side-chain effects loop with blend control, tuner send, speaker on/off switch, Speakon® and 1/4" speaker outputs. Speakon-to-Speakon cable for bridge-mono operation included.

19"W x 3.5"H x 13.375"D, 20 lbs.

Specifications

  • Type Mono/Stereo Bass Amplifier Head
  • Description The classic SWR amplifier. Rack mountable. Can be run mono or stereo.
  • Features
  • FRONT PANEL FEATURES
    • Dual independent input jacks compatible
    • for both active and passive instruments
    • Gain control with LED peak clipping indicator
    • Limiter with variable threshold control
    • Aural Enhancer™ Control
    • Bass Control +15dB - 15dB (shelving point 80 Hz)
    • Treble Control +15dB - 15dB (shelving point 2 KHz)
    • Transparency Control +15dB - 15dB (shelving point 5 KHz)
    • Variable Graphic Equalizer +15dB - 15dB:
    • Band One: 40 Hz to 160 Hz
    • Band Two: 80 Hz to 320 Hz
    • Band Three: 200 Hz to 800 Hz
    • Band Four: 400 Hz to 1600 Hz
    • Effects Blend Control
    • Dual Concentric (Stereo) Master Volume Control
    • Rack Handles
    • Speaker On/Off Switch
    • Power On/Off Switch
  • REAR PANEL FEATURES
    • Side Chain Effects Loop
    • Tuner Output
    • Balanced XLR Output with select switch for Line or Direct Mode, ground lift & pad control
    • 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, 8 Amp, Fast Blo
    • Line Fuse: 3AG, 7 Amp, Slow Blo
  • INTERNAL FEATURES
    • (1) 12AX7 Preamp Tube
    • Cooling fan
  • Power Output
      Bridge/Mono Mode
    • 500 Watts @ 4 Ohms
    • 400 Watts @ 8 Ohms
    • 250 Watts @ 16 Ohms
    • (minimum load = 4 Ohms)
    • Stereo Mode (per side)
    • 300 watts @ 2 Ohms
    • 250 watts @ 4 Ohms
    • 150 watts @ 8 Ohms
    • (minimum load = 2 Ohms)
  • Impedance (Ohms) N/A
  • Speakers N/A
  • Channels 1 Channel
  • Controls
      Gain with preamp clip indicator
    • Limiter
    • Aural Enhancer
    • Bass
    • 4-Band variable graphic equilizer
    • Treble
    • Transparency
    • Effects Blend
    • Master volume
  • Covering Black steel chassis
  • Weight 20 lbs.
  • Dimensions
    • Height: 3.5"
    • Width: 19"
    • Depth: 13.375"
    • (2 rack spaces)
  • Power Handling N/A
  • Tube Complement (1) 12AX7 Preamp Tube
  • Accessories N/A
  • Cover N/A
  • Footswitch N/A
  • Frequency Response (Power Amplifier) 10Hz and 40KHz
  • SPL N/A
  • Suggested Speaker Enclosures
    • Megoliath
    • Goliath Senior
    • Big Bertha
    • Henry 8x8
    • Triad
    • Goliath III
  • Suggested Speaker Combinations
    • (2) Goliath III
    • (2) Triads
    • (2) Goliath Junior III
    • (2) Son Of Bertha
    • (1) Goliath III & (1) Son Of Bertha
    • (1) Goliath III & (1) Big Ben
    • (1) Goliath III & (1) Goliath Junior III
  • Input Impedance
    • Passive/Active Input: 800K Ohms
    • Active Input: 60K Ohms
    • Effects Return: 27K Ohms
  • Output Impedance
    • Effects Send:100 Ohms
    • XLR Balanced Out: 750 Ohms
  • Sensitivity
    • Full output under clipping, 8 ohms load, 100 Hz
    • Passive Input Jack: 38 millivolts
    • Active Input Jack: 155 millivolts
    • Power Amplifier (Effects Return Jack "in"): .5 volts
  • Signal to Noise Ratio
    • -72 dB(<10 millivolts typical), EQUIVALENT INPUT NOISE
    • 9 microvolts
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