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Markbass Bass Multiamp S Stereo 600W Bass Head with Effects Black 888365899329 (Open Box)
Ships Internationally
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Product# J03996

Versatile amp lets you enjoy an immense classic and current tone options.

The Bass Multiamp S offers bassists an incredibly wide range of virtual bass amps, both modern and vintage, along with virtual speaker cabs, microphones, studio and stompbox effects, all combined with a powerful power a practical 2-space rackmountable unit. The Bass Multiamp S features an easy-to-use interface and a stereo 2 X 500W@4ohm Class D power amp. This can be mono-bridged at 1000W (@8 ohms) for the ultimate in lightweight, multi-voiced bass amplification. Weighing in at only 9.5 lb., this two-rack head offers bass players portable and complete tonal control.

  • Input: ¼" mono
  • Speaker Outputs: 2 X ¼" mono (left/mono,right), 1 X Locking Speakon
  • Headphone Output (1/4")
  • Channels: Solid State / Tube / Vintage
  • 105 Live Mono Factory Presets
  • 105 PA Factory Presets
  • Controls: Gain /Phones Level / Master
  • EQ Controls: Low / Mid Low / Mid High / High
  • Powe Amp: 2 X 500W@4ohm / 300W@8ohm
  • Bridgeable to 1000W (8 ohms)
  • MIDI Connections: In / Through
  • 12 Virtual Amps, modeled after classic bass amp tones
  • Virtual Speaker Cabs and Microphones
  • Mute/Tuner
  • Stereo Direct output with ground lift and level switch
  • 15 Built-in programmable effects
  • Effects Loop (1/4" S/R)
  • External Memory (SD card*)
  • USB out (computer interface, software update)
  • Dimensions: 2U standard rack / depth 12.76"/324 mm
  • Weight: 9.48lb/4.3 kg

Give your bass a boost. Order today and see where this Markbass amp can take you.


Review Snapshot

by PowerReviews
MarkbassBass Multiamp S Stereo 600W Bass Head with Effects

(based on 1 review)

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Reviewed by 1 customer

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(5 of 6 customers found this review helpful)


Great sound, clunky interface

By Dr Bob

from Tacoma, WA

About Me Experienced

Verified Buyer


  • Excellent Sound
  • Portable


  • Awkward To Configure
  • Difficult To Use
  • No Pc Editor
  • No Pc Interface

Best Uses

  • Home Studio

Comments about Markbass Bass Multiamp S Stereo 600W Bass Head with Effects:

OK, I've been spoiled - been a user of Fractal's Axe-Fx units for guitar for years, which is the Cadillac of digital modellers, but has limitied support for bass amps. So I thought I'd check this head out.

The upside: great, transparent MarkBass sound, and very good modelling of some other classic bass amps; effects seem high quality.

The downsides: 1. limited cab options; 2. Screen interface is clunky, and reviewing/editing/creating patches is tedious and relatively unintuitive.

Basically, digital amp/effect modellers need PC connectivity and PC editors to be useable, IMO. The Multiamp has neither. And you need a MIDI foot controller to use these things, which MB now makes (more $$) but which does not appear to be terribly easy to program and use (just on superficial observation, don't have one). In contrast, the Axe-Fx has a tightly integrated foot controller, software programable, LED indicators for effects on/off, etc. I guess if you only need a few patches tweaked and saved (and never changed) it might not be too bad, but otherwise you'll spend a lot of time setting this up and getting it to work smoothly with a pedal.

I guess my other issue with this head is philosophical: do most bass players really need this many effects? Unlike guitar, bass effects tend to be fairly plain-Jane (compression, maybe octavizer, phaser, chorus), so you're spending a fair chunk of change on a bunch of effects most gigging bassists will never use, it seems. And you still have to buy a cab for it (lots more $$) unless it's for home studio/recording use -- which may be its best application

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