Ashdown Engineering Rootmaster RM-800 800-Watt Bass Amplifier Head


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MSRP: $949.99 $699.99 Save : $250.00 (26%)
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MSRP: $949.99 $699.99 Save : $250.00 (26%)
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Joining the popular Rootmaster range is the Ashdown RM-800, a new high-powered 800 watt head that delivers powerful features and classic Ashdown tone in a compact, lightweight format that packs enough sonic punch for any venue.

At Ashdown, they know that not every gig pays the big bucks. Dedicated to busy, hard-working bass players on a budget, Rootmaster heads, combos and cabinets draw on all of their experience working with some of the biggest bands in the world to deliver workhorse reliability, creative tone-shaping, comprehensive recording and performing facilities plus the sonic slam you need to underpin your band's performances night after night – all at a price that won't break the bank.

Powered by an 800W digital amp, the RM-800 is the lightest RM head, weighing in at 4.5kg (9 lbs.) and the perfect choice for working bassists looking for power and features without the weight.

Simple, powerful EQ
It all starts with an ultra-low-noise instrument input where the accompanying Input Level control helps you perfectly match the output of your bass. Five-band rotary tone controls act with surgical precision to provide total control over your sound, while a Shape switch instantly dials you in to a classic Ashdown tone setting, straight from the world-famous ABM.

One-knob Compression
Instantly adding warmth and body to your tone, this simple to use, great sounding compressor delivers a powerful, even sound to make sure your bass will fill out any mix.

Footswitchable variable overdrive
With footswitchable flexibility, Ashdown's tube-emulated overdrive can take your core bass sound and push it into warm overdrive through to distorted filth whenever you need to add extra grind and girth to your tone.

Kick it down
Bringing extra depth and definition to your bass parts, the Sub-Harmonic Generator lets you dial in a sub-octave and kick it in via footswitch whenever you need the extra depth for those super-heavy Godzilla moments.

Totally connected
If you want to use your favorite pedals or multi-effects, you'll find send and return sockets on the back panel, along with a DI output for direct injection into the PA mixer or recording console and a Line Input (with front panel level control) so you can jam along with a backing track in rehearsal.

Create the perfect rig
A combined Jack/Speakon socket with a minimum 4- ohm load provides flexible partnering options with a dedicated range of Rootmaster cabinets. 2 x 10", 4 x 10" and 2 x 12" cabs all feature custom-designed Ashdown bass drivers plus a high-frequency horn for additional top-end bite. A 1 x 15" completes the range with all cabinets featuring ultra-cool retro cloth grilles, road-ready tolex covering and tough metal protective corners.


  • Flexible, lightweight, and high powered bass amplifier
  • Built-in compressor and footswitchable overdrive for added punch and growl
  • On-board Sub-Harmonic effect for added depth (footswitchable via optional FS-2 switch)
  • Comprehensive five-band rotary EQ; Shape function boosts high and low frequencies
  • Balanced XLR Direct Out; Effects Loop; Auxiliary Line In with Mix Control

Get your Ashdown Engineering Rootmaster RM-800 800-Watt Bass Amplifier Head today at the guaranteed lowest price from Sam Ash Direct with our 45-day return and 60-day price protection policy.

Things You Will Get:

  • Bass Amplifier Head


by PowerReviews
Series Rootmaster
Model RM-800
Amp Type Digital
Channels 1
Watts 800
Line Out Yes
Other Features Power Handling: 115 - 230 Volts

Speaker Outputs: 1 x Speakon

Frequency Response: -3dB at 17Hz and 30kHz

High Instrument Input: Impedance 3.9m Ohms, input range 150mV - 20mV p-p

Low Instrument Input: Impedance - 1M ohms Input range 150mv to 10v p - p

Line Input: Impedance 10k Ohms, input range 300mV - 40V p-p

DI Output: 600 Ohm balanced / Level -20dBu nominal

Tuner Output: Impedance 22k Ohms / Level 0dBu nominal

Impedance: Minimum 4 Ohm

Signal to noise: Better than 80dB (EQ flat)

EQ: Bass +/-15dB @ 100Hz Lo Mid +/-15dB @ 220Hz Middle +/-15dB @ 660Hz Hi Mid +/-15dB @ 1.6kHz Treble +/-15dB @ 7kHz shelving Deep +

Effects Send: impedance 22k Ohm / Level 0dBu nominal

Effects Return: impedance 22k Ohm / Level 0dBu nominal

Distortion: Less than 0.5% THD
Weight 9.92 lbs.
Dimensions 12.32 x 3.07 x 8.86 inches (WxHxD)