Markbass R500 500W Bass Amp Head  

Product #481747

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Item Note:

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

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A high-powered analog bass head made for bassists who just want to rock.

The Markbass R500 is a bass amplifier head that will have you rocking out old-school, rocking hard, creating your own alternative rock, or shredding up the stage stealing the spotlight from your guitarists! The 500W analog R500 amp (at 4 ohms; 300W at 8 ohms) features a tube preamp that will break up just the way you want it to, and a newly designed limiter that produces glorious distortion instead of cramping your style. The simple 4-band EQ gives you all you need to access a wide range of sounds for any genre. As far as controls, the Gain knob is for the amount of tube overdrive, whereas the Master knob is for your volume.

  • Analog amp with a tube preamp which provides 500W at 4 ohms; 300W at 8 ohms
  • 1/4" input jack works with passive or active basses
  • Gain knob controls tube overdrive
  • Master knob controls volume
  • Line out controls rear XLR line out volume level
  • 4-band EQ: Low, Low Mid, High Mid, HIgh
  • Neutrik Speakon Combo out jacks for use with 1/4" or Speakon speaker cables
  • Balanced XLR line out
  • Pre EQ/Post EQ switch to determine whether the output signal is effected by the EQ settings or not
  • Ground lift switch to eliminate hum
  • Tuner out sends unbalanced signal sent to a tuner, amp or recording equipment not needing a balanced signal
  • Send and Return Effect ensures main signal continues even if something dies in your effects chain
  • Dual-sided fiberglass PC boards with lined perforations for high-quality solder connections
  • Surface-mount components are silicon-sealed to isolate vibrations
  • Computer-grade pre-assembled ribbon connector cable harnesses and ribbons for noise-free operation
  • Integrated threaded posts for easy assembly/disassembly and added durability

R500 500W Bass Amp Head Specifications:

  • Power
  • Input impedance: 500Kohm, max. voltage: 9 Vpp
  • Effect Return impedance: 33Kohm, max. voltage: 12 Vpp
  • Output Power: 300W RMS at 8 ohms, 500W RMS at 4 ohms
  • Voltage is factory preset for the U.S.
  • Controls
  • GAIN: —80dB to +25dB range
  • GROUND LIFT: Switch on rear panel
  • Optional footswitch: mute
  • Equalization
  • LOW
  • Center frequency: 80Hz; level ±12dB
  • Center frequency 400Hz, level ±12dB
  • Center frequency 800Hz, level ±12dB
  • HIGH
  • 3kHz shelf; level ±12dB
  • Outputs
  • Unbalanced, max. voltage 12 Vpp (pre-EQ)
  • Unbalanced, max. voltage 2 Vpp
  • Balanced XLR, max. voltage 25 Vpp
  • Speakon, 1/4" x 2
  • Other
  • Dimensions: 8.16"(W) x 3.39"(H) x 11.89"(D)
  • Weight: 8.16 lbs.
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