Markbass Little Mark IV 500W Bass Amplifier Head

Markbass Little Mark IV 500W Bass Amplifier Head
Product no: 9000-0091-6009 Bax Music Warranty: This product comes with a 3-year warranty.

General

Markbass launch the Little Mark IV: a fourth-generation amp head from a family of popular bass guitar amps. Designed to shake things up, this 500-Watt bad-boy features a new bi-band limiter, making sure you can count on a quick response and natural sound. The Little Mark IV is a great choice for bassists who demand fast, punchy sound at higher volume settings from a compact, lightweight unit that can not only be carried with ease but built into a rack unit (not included).

The Little Mark IV: A Highly Adaptable Bass Guitar Amplifier

Since the amp comes equipped with a 4-band EQ for boosting or reining in each band by 16dB and an old-school filter for rounding out the tone, changing up your sound is as easy as can be. In fact, using the fitted 3-way switch, you can quickly toggle between extremely flat, balanced tone; a scooped mid setting that's perfect for slap; and the FSW option that gives you control over the mute function and scooped-mid setting in combination with the optional dual footswitch (not included).

Specifications

Product features

Sustainable product	not specified
Amplifier type	transistor
Power in Watts	401 - 500 Watts
Speaker output impedance	8 Ohms, 4 Ohms
Number of speaker outputs	1
Weight	0 - 4.9 kg
Number of channels	1
Amplifier valve	not applicable
Amp modelling	no
Built-in tuner	no
Built-in effects	none
Built-in compressor	no
Power attenuator	no
Effects loop	yes
Connectors	External speaker(s), Footswitch, Line-out
Colour	black

Weight and dimensions including packaging

Weight (incl. packaging)	3,6 kg
Dimensions (incl. packaging)	40,0 x 36,0 x 20,0 cm

Product specifications

Markbass bass guitar amplifier head
model: Little Mark IV
amplifier type: transistor
power capacity:
- 500W @ 4 Ohms
- 300W @ 8 Ohms
3-way switch: flat / scooped-mid / FSW
controls: gain, low, mid low, mid high, high, old school, line out, master
ports:
- input: 6.35mm mono jack
- send effects: 6.35mm mono jack
- return effects : mono jack
- balanced line out: XLR
- speaker out: speakon
- footswitch
- tuner output
dimensions (L x W x H) : 26 x 41.5 x 52.5cm
- height: 2U (8.3cm)
- width: 27.6cm (48.3cm with optional rack ears)
- depth: 25cm
weight: 2.45 kg

Write a review

ianjwild June 28, 2026

Wrote the following about Markbass Little Mark IV 500W Bass Amplifier Head

Bought this as a back up for the Markbass CMD 121 combo & NewYork 121 extension cab. Have tried it out with the cab and it's just fine. Great tone and power !