Product Specifications

POWER

• Power Output: 600 Watts
• Power Requirement: 115–230 Volts

CONNECTIVITY & I/O

• Speaker Outputs: 2 × Jack/Speakon outputs
• Line Input: Impedance 22k Ohms, input level 0dBu nominal
• DI Output: 600 Ohm balanced, Level 0dBu nominal
• Tuner Output: Impedance 22k Ohms, Level 0dBu nominal
• Effects Send: Impedance 22k Ohm, Level 0dBu nominal
• Effects Return: Impedance 22k Ohms, Input Level 0dBu nominal

PERFORMANCE

• Frequency Response: -3dB @ 17Hz and 30kHz
• High Instrument Input: Impedance 3.9m Ohms, input range 150mV
• Low Instrument Input: Impedance 22k Ohms, input level 0dBu nominal

DIMENSIONS & WEIGHT

• Height × Width × Depth (mm): 619 x 476 x 230
• Weight (kg): 13.80

Variable Valve Drive Plus

The upgraded Variable Valve Drive Plus preamp section delivers more current to the 12AX7 tube, unlocking greater drive and harmonics content than ever before. Players can move seamlessly from pristine clean tones to full, fat bass overdrive.
The Drive level can be present and engaged via footswitch, giving instant access to a huge range of tonal textures.

Precision EQ

A familiar set of Bass, Middle, and Treble controls are paired with a powerful 6-band slider section at 100Hz, 180Hz, 340Hz, 1.3kHz, 2.6kHz, and 5kHz.
Footswitchable EQ access allows players to move from a flat fretless sound to a sculpted EQ setting in seconds. The new illuminated Input VU meter makes gain staging quick and intuitive.

One Knob Compressor

Ashdown's famous One Knob Compressor delivers punch and consistency with effortless simplicity, while the Sub-Harmonic Generator adds an octave below the played notes, ranging from subtle depth to thunderous low-end power. These classic ABM features guarantee a bass tone that cuts through any mix while retaining warmth and character.

Professional Connectivity

The UK-ABM-600-EVO IV offers a comprehensive suite of connections. These include tuner output, Line Out, Line Input for external sources, transparent FX loop, and output muting for silent tuning. Two Neutrik Jack/Speakon sockets support flexible cabinet setups: a single 8 Ohm, two 8 Ohm cabs, or one 4 Ohm cab.

Proudly made in the UK

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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