Markbass LITTLEMARK-IV 300 / 500w Bass Amp Head



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The new Little Mark IV amps add some amazing features to our flagship Markbass Little Mark III amplifier, an industry standard for tone, portability and value. The new bi-band limiter featured on this amp responds faster and more dynamically to your playing. Its paired with a 500 watt power amp providing impeccable bass frequency reproduction thanks to our MPT proprietary amp specifically designed for bass. In addition the Little Mark IV features a mute switch, and the 3 way switch that that includes the options of a Flat, Scooped or FSW (Footswitchable) EQ options. Little Mark’s legacy Since our beginning 20 years ago, Markbass pioneered small amp design with its “Little Mark” series creating an industry standard thanks to their amp’s compact size, light weight, along with its signature warm and natural sound. That legacy has been preserved with the Little Mark IV, and has evolved to include the addition of new features requested by many of our artists and customers. Updated 4 band EQ, Old School filter, 3 way switch Our 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 4 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 Our new 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 our amp heads the best choice for anyone who enjoys a quick, punchy attack at high volumes.


Input impedance: 1 mohm, max. Voltage: 9 vpp

Return impedance: 22 kohm, max. Voltage: 10 vpp


Gain –46 db to +23 db range

Line out level control on front panel

Pre/post eq (for line out) switch on rear panel

Ground lift switch on rear panel

Mute switch

Master volume


Low: center frequency 68 hz; level: ±16 db

Mid low: center frequency 360 hz; level: ±16 db

Mid high: center frequency 800 hz; level: ±16 db

High: center frequency 10 khz; level: ±16 db

Old school: max cut range: 250 hz – 20 khz

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”*

Dimensions and weight

Height: 2 rack units (3.27 in. / 83 mm)

Width: 10.87 in. / 27.6 cm (19 in. / 48.3 cm with optional rack ears)

Depth: 9.84 in. / 25 cm

Weight: 5.4 lbs / 2.450 kg


Bi-band limiter

Footswitch (optional): flat/scooped-mid

Output power: 500w rms @ 4 ohm, 300w rms @ 8 ohm

Power requirement: 8033829133385