Ashdown Engineering


We're thrilled to unveil the NEW CTM-30, a 30-watt all-valve bass guitar amplifier in a stylish tweed finish. This amplifier takes a classic approach, delivering rich, organic valve bass tones that are often overshadowed by modern class D amps.
Despite its modest power, the CTM-30 packs a punch, making it ideal for studio recording and intimate gigs. It boasts a balanced DI output for seamless studio integration, and its versatile EQ controls, including Bass Shift, Mid Shift, and Bright Switching, allow you to sculpt your perfect sound. Plus, a front-mounted effects loop lets you enhance your tone with pedals and multi-effects units.
Please Note:
Direct purchases NOT available in the United States
Find your local Ashdown Dealer HERE


  • Power Output - 30W
  • Frequency Response - 30Hz - 16kHz
  • Speaker Outputs - Jack Sockets
  • High Instrument Input - 450mV
  • Low Instrument Input - 150mV
  • DI Output - Line Level -1k
  • Impedance - Minimum load 4 Ohm
  • EQ - Simple Passive Bass, Middle, Treble EQ Rotary Controls
  • Effects Send - Valve Driven Instrument Level
  • Effects Return - Valve recovered
  • Pre-amp Tubes - 1 x ECC83, 1 x ECC82
  • Output Tubes - 4 x EL84
Rated at 30W, the CTM-30 brings classic all-tube tone in a compact light(er)weight head ideally suited to studio recording and even small shows. With the on-board balanced Di Output as well as 4 and 8 ohm speaker outs to provide a wide range of cab options.

Equipped with hi and low inputs for active or passive basses, CTM-30 combines traditional Bass, Mid and Treble EQ with additional flexibility of Mid Shift, Bass Shift and Bright Switching, unlocking a wide range of classic and contemporary all-tube tone from its ECC83 and ECC82 preamp tubes and smooth but powerful 30W EL84 power section.
The standard tone controls give you a wide range of uber-musical sounds, while Deep, Mid Shift, and Bright switches let you fine-tune your tone to the situation. The EQ section is a passive tone circuit - meaning if all controls are at zero there will be no sound through the amp. All the controls are highly interactive, giving you the possibility to dial in exactly what tone you want. Don’t be scared to dial the pots all the way to get the most from the controls.
With it's modest 30W output, we've included a balanced DI, perfect for studio recording or for larger gigs where you need to get pure DI signal to the desk with a minimum of hassle.

For pedal aficionados who want to bring yet more colour to the tone, the front-mounted effects loop makes it easy integrate your favourite pedals and multi-effects with minimal tonal degradation.

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