Product Specifications

POWER

• Power Output: 800 Watts
• Power Requirements: 115–230 Volts
• Impedance: Minimum 4 Ohms

CONNECTIVITY & I/O

• Speaker Outputs: 2 × Neutrik Speakon/Jack outputs
• High Instrument Input: Impedance 3.9M Ohms, input range 150mV – 20V p-p
• Low Instrument Input: Impedance 10k Ohms, input range 300mV – 405V p-p
• Line Input: Impedance 22k Ohms, input level 0dBu nominal
• DI Output: 420 Ohm balanced, Level 0dBu nominal
• Effects Send: Impedance 22k Ohm, Level 0dBu nominal
• Effects Return: Impedance 22k Ohms, Input Level 0dBu nominal

PERFORMANCE

• Frequency Response: –3dB @ 22Hz and 25kHz
• Signal to Noise: Better than 80dB (EQ flat)
• EQ:
• Bass: ±15dB @ 100Hz
• Lo Mid: ±15dB @ 340Hz
• Middle: ±15dB @ 660Hz
• Hi Mid: ±15dB @ 1.6kHz
• Treble: ±15dB @ 7kHz shelving
• Distortion: Less than 0.5% THD

DIMENSIONS & WEIGHT

Dimensions
• Height: 89 mm
• Width: 311 mm
• Depth: 235 mm
• Net Weight: 2.5 kg

Precision and Power in One Box

The Rootmaster 800 EVO III is a precision-engineered amplifier designed for bassists who demand versatility. With its comprehensive EQ system, Ashdown Sub Harmonic Generator, Compression control, and Valve Emulated Drive, it adapts seamlessly to any style or setting, whether you're in the studio or commanding the stage.

Modern Stage-Ready Innovation

In an era where in-ear monitoring and silent stages are becoming the norm, the Rootamaster EVO III keeps players ahead of the curve. The new Analogue Cab Sim DI output provides flexible monitoring and ensures your tone translates perfectly to front-of-house and in-ear mixes, making setup easier than ever without sacrificing sound quality.

Raw Output, Global Flexibility

Delivering a mighty 800 watts of output, the Rootmaster EVO III has the muscle for everything from intimate gigs to festival stages. With power compatibility ranging from 115V-230V, it's built for the travelling bassist. Two Neutrik Speakon/Jack outputs ensure rock-solid connections, while its wide frequency response of 17Hz-30kHz captures the entire bass spectrum in stunning detail.

Complete Connectivity

Flexibility is at the core of the Rootmaster EVO III. High and low instrument inputs, a line input, and a dedicated tuner output simplify your setup. A balanced DI ensures your signal is always ready for front-of-house, while the rear panel provides an additional balanced XLR DI for post-EQ and post-effects signals. Whether you're sending your sound to a desk, in ears, or an external right, this amp covers every base.

Next-Level Cabinet Simulation

User

manual

CLICK THE IMAGE ABOVE TO DOWNLOAD THE USER MANUAL

FAQs

Please read our FAQs page to find out more.

How Long Will My Order Take To Arrive?

Orders placed before 3pm (Monday-Thursday) are dispatched on the same day. UK Customer orders are shipped on a next-day delivery service via TNT.

Do You Shop To Outside Of The UK?

Currently, we do not facilitate orders to outside of the UK. If there is a specific product that you are after, be sure to check our Dealer Locator to find your closest Ashdown dealer!

If you cannot find a local dealer, please do not hesitate to get in touch and we will try and assist!

Do Ashdown Products Come With A Warranty?

Yes! All Ashdown product purchased include a 5 year warranty, giving you peace of mind and long-term support.

For more information on warranties, visit our Warranty Info page!

Where Can I Buy Ashdown Spares and Accessories?

Spare parts, footswitches, and accessories can be purchased directly through our in-house service team. If you're looking for something specific, our team will be happy to point you in the right direction!

How Can I Contact Ashdown Support?

Our passionate UK-based team is always ready to help. You can get in touch by phone or email, and we'll be happy to assist with any questions.

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