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.

Markbass R500 500W Bass Amp Head Features:

• 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
• Rigid 2mm thick aluminium chassis for a long-lasting finish

Increase the power and tonal versatility of your bass sound with this top-quality 500W bass head. Get yours today!

Markbass 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
• Power Requirement: 100V; 120V; 230V; 240V; 50/60Hz
  
  Controls
• GAIN: 80dB to +25dB range
• GROUND LIFT: Switch on rear panel
• MASTER VOLUME
• Optional footswitch: mute
  
  Equalization
• LOW
• Center frequency: 80Hz; level ±12dB
• LOW MID
• Center frequency 400Hz, level ±12dB
• HIGH MID
• Center frequency 800Hz, level ±12dB
• HIGH
• 3kHz shelf; level ±12dB
  
  Outputs
• EFFECT SEND
• Unbalanced, max. voltage 12 Vpp (pre-EQ)
• TUNER OUT
• Unbalanced, max. voltage 2 Vpp
• LINE OUT
• Balanced XLR, max. voltage 25 Vpp
• SPEAKER OUT
• Speakon, 1/4" x 2
  
  Other
• Dimensions: 8.16"(W) x 3.39"(H) x 11.89"(D)
• Weight: 8.16 lbs.

Markbass R500 500W Bass Amp Head

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Quality

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Markbass R500 Bass Amp - Tube Preamp

Posted by 70x7Sound from Toms River, NJ on Aug 28, 2008

Experience w/product: I own it

Reviewer's Background: Active Musician

Reviewer's Play Style: Rock & Country

The Markbass R500 has a very sweet sounding tube pre-amp (for those who like that tube sound). You can dial-in a very nice classic Rock & Roll sound or deep Country bass. Plenty of power ! This was plenty enough driving one 4x10XLT cabinet. Amp is very light and very quiet. There was absolutely no scratching sound when I turned the Volume or EQ controls. Looks and feels well made. The operators manual was a bit lacking, but the amp is easy enough to figure out. This is a straight forward excellent sounding Amp. The tube pre-amp can be adjusted to permit warmth or nice tube distortion.

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Markbass R500 500W Bass Amp Head

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