Ashdown Rootmaster EVO 500W 1 x 15 Bass Amplifier Combo

Product ID: 110333

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  • 500-watt bass amplifier with 15-inch White Line speaker
  • Rootmaster EVO 5-band EQ enables deep level tone-shaping
  • Drive and Sub harmonic controls for injecting overdrive and depth
  • Footswitchable control enables real-time hands-free control
  • Extensive connectivity options via Speakon and XLR outputs
  • Lightweight and rugged design with comfortable carrying handles
  • FX Loop with Send and Return for improved outboard effect control
  • Line input with front panel level control for jamming or practising along to an external audio device, e.g. smartphone, mp3 player, laptop
  • Ideal model for gigging and touring bassists who want the best
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Delivery to UK mainland addresses* is FREE on orders over £75 and up to 30kg. (As a guide, a standard electric guitar weighs approx. 3-5kg).

Delivery on orders below £75 are charged at £4.45!

Delivery to Northern Ireland, the Scottish Highlands & Islands, Isle of Man, Isle of Wight and Channel Islands is weight dependant and will be indicated at the checkout

Delivery above 30kg to ANY location will vary according to weight and will be indicated at the checkout

LocationPriceStandard Delivery
UK mainland* FREE on orders over £75 £4.45 on orders under £75 1-3 working days
Northern Ireland, Scottish Highlands & Islands Isle of Man Isle of Wight Channel Islands £12.95 – any order value up to 30kg Over 30kg - please call 1-3 working days
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The Ashdown Rootmaster EVO 500W 1 x 15 Bass Amplifier Combo is a superb combo for those who need a reliable workhorse for practising, gigging and touring with. Equipped with Ashdown's White Line 15-inch speaker, the impressive RM-500 amplifier is given the perfect partner to project tones with exceptional clarity.

Impressive Ashdown power

The Rootmaster EVO 500W 1 x 15 boasts a compact form that belies its powerful capabilities. The RM-500 amplifier delivers a smooth sonic output, with a selection of inputs and a wide range of tone shaping options to play with. The active and passive instrument inputs allow you to connect either active or passive pickup-powered basses. The White Line Speaker ensures that tones are delivered with the utmost clarity. The additional 8-Ohm extension cabinet output allows you to increase your playing power when desired.

Intuitive front panel control layout

Across the front panel, you'll find a range of control that enable you to readily sculpt your tone. The top row carries the impressive 5-band EQ section, which features Bass, 240Hz, Middle, 1.5kHz, and Treble frequency shaping. Wherever you're performing, you can adjust the amp's output to suit any playing environment.

The design of the compressor means that you can attenuate the signal from a tight response that focuses on note attack and note clarity to a swelling, almost dirty tone with plenty of depth. Whether you want a tight clean or a chunky overdriven tone, the built in Drive control allows you to ramp up the drive to suit your needs. The Sub harmonics section produces sub harmonics an octave below played notes, which can be blended with the level control to create the right mix for you. The bonus here is a dense, thickly-packed tone that fills out your sound.

Extensive connectivity

Across the front panel you'll find the Active and Passive instrument inputs. Across the rear panel there are a range of connectivity options for you to play take advantage of, including: Speakon connections, DI Out, FX Loop (Send/Return), FS-2 Out, and Line In.

The FX Loop Send and Return connections allow you to set up external effects pedals free from the pre- and post-amp stages to give you greater control. The D.I. XLR output delivers a balanced signal, perfect if you want to send a feed straight into a mixing desk for recording or monitor mix during a gig. Not only that but a unique Speakon speaker output jack allows you to connect into a live PA desk where an XLR jack isn't available so that all bases are covered. The FS-2 output allows you to manipulate the Drive and Sub Harmonic effects via an external footswitch.

Durable cabinet design

As we've come to expect from the team at Ashdown, the Rootmaster EVO 500W 1 x 15-Watt is built to withstand all the abuse that comes with life on the road. The cabinet is built using lightweight ply to reduce weight, without compromising on that signature Ashdown sound - sparing your back when loading in and out of venues, whilst preserving your mighty tone. Encased in Buffalo tolex and employing a black grille cloth, the cabinet achieves a cool yet understated finish. Carrying handles on either side of the cab make it nice and easy to transport.

ModelRootmaster EVO 500W 1 x 15 Bass Amplifier Combo
Dimensions (H x W x D) 590 x 470 x 335 mm
Weight 17kg
Output Power500 Watts RMS
Power Requirement115 - 230 Volts
Speaker Configuration1 x 15-inch
Speaker Outputs2 x Speakon
Frequency Response3db at 17Hz and 30kHz
High Instrument Input Impedance 3.9M Ohms / Input range 150mv to 20v p-p
Low Instrument InputImpedance -1M Ohms / Input range 150mv to 10v p-p
Line InputImpedance 10k Ohms, Input range 300mV to 40V p-p
DI Output600 Ohm balanced / Level -20dBu nominal
Tuner OutputImpedance 22k Ohms / Level 0dBu nominal
ImpedanceMinimum 4 Ohm
Signal to noiseBetter than 80dB (EQ flat)
EQ Bass +/- 15db @ 100Hz
Lo Mid +/- 15db @ 220kHz
Mid +/- 15db @ 660kHz
Hi Mid +/- 15db @ 1.6kHz
Treble +/- 15db @ 7kHz shelving
Effects SendImpedance 22k Ohm / Level 0dBu Nominal
Effects ReturnImpedance 22k Ohm / Level 0dBu Nominal
DistortionLess than 0.5% THD

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