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Markbass Markbass

Markbass Little Mark IV 500W Bass Amplifier Head Black

649.99 $649.99
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Thick bass tone with enhanced player-friendly features.

The Markbass Little Mark IV bass amp heads add some amazing features to the flagship Markbass Little Mark III amplifier, an industry standard for tone, portability and value. The bi-band limiter featured on this amp responds faster and more dynamically to your playing. It's paired with a 500-watt power amp providing impeccable bass frequency reproduction thanks to an MPT proprietary amp specifically designed for bass. In addition, the Little Mark IV includes a mute switch and the 3-way switch with Flat, Scooped or FSW (footswitchable) options.

Updated 4-Band EQ, Old School Filter, 3-Way Switch

An updated 4-band EQ section features very effective controls allowing you to easily find the sound you want, boosting or cutting up to 16dB for each of the four bands to cover all the tonal nuances needed in any genre of music. Additionally, the Old School filter cuts your high frequencies and gives a round and smooth tone. The 3-way rotary switch allows you to choose between a super-balanced flat tone, a scooped preset that drops the mids while boosting the lows and highs—giving a superb slap sound, or lastly the FSW option to control both mute and the Scooped EQ on demand by connecting an optional dual footswitch.

Bi-Band Limiter

The bi-band limiter responds faster and more dynamically to your playing than traditional limiters do and lets your high end "breathe" for a more natural sound. It makes the Little Mark IV amp head a great choice for anyone who enjoys a quick, punchy attack at high volumes.

Mute/Line Out Level Control/Pre-Post EQ Switch

Featured on the front panel of the Little Mark IV series amps are a convenient mute switch, along with the Line Out level control knob that allows for precise control of the signal sent to the mixer/PA. On the rear panel is a Pre-Post EQ switch, which allows you to set the XLR output's routing to before or after your EQ as required.


  • Bi-Band limiter
  • Footswitch (optional): Flat/Scooped-Mid
  • Output power: 500W RMS @ 4 ohm, 300W RMS @ 8 ohm
  • Power requirement: 100V; 120V; 230V; 240V 50/60Hz (Voltage is factory preset according to region of sale)

Order the Little Mark IV bass amp head today.


Little Mark IV 500W Bass Amplifier Head Specifications:

  • INPUT impedance: 1 mohm, max. voltage: 9 Vpp
  • RETURN impedance: 22K ohm, max. voltage: 10 Vpp
  • GAIN –46dB to +23dB range
  • LINE OUT level control on front panel
  • PRE/POST EQ (for line out) switch on rear panel
  • GROUND LIFT switch on rear panel
  • LOW: Center frequency 68Hz; level: ±16dB
  • MID LOW: Center frequency 360Hz; level: ±16dB
  • MID HIGH: Center frequency 800Hz; level: ±16dB
  • HIGH: Center frequency 10kHz; level: ±16dB
  • OLD SCHOOL: Max cut range: 250Hz–20kHz
  • 3 WAY SWITCH: Flat/scooped-mid/FSW
  • SEND EFFECTS: Unbalanced, max. voltage 20 Vpp
  • TUNER OUT: Unbalanced, max. voltage 2 Vpp
  • LINE OUT: Balanced XLR, max. voltage 20 Vpp
  • SPEAKER OUT: speakON/1/4" combo, 1/4"
  • HEIGHT: 2 rack units 3.27"
  • WIDTH: 10.87"
  • DEPTH: 10.04"
  • WEIGHT:  6.17 lb.

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