Product Specifications

POWER

• Power Output: 30 Watts (all-valve)
• Frequency Response: 30Hz – 16kHz
• Power Tubes: 4 × EL84
• Preamp Tubes: 1 × ECC83, 1 × ECC82
• Impedance: Minimum load 4Ω

CONNECTIVITY & I/O

• Speaker Outputs: Jack sockets (4Ω and 8Ω)
• High Instrument Input: 450mV
• Low Instrument Input: 150mV
• DI Output: Line level, –1k
• Effects Send: Valve-driven instrument level
• Effects Return: Valve recovered

PERFORMANCE

• EQ: Passive Bass, Middle, Treble rotary controls
• Additional Tone Shaping: Bass Shift, Mid Shift, Bright switch
• Circuit: Passive EQ section (interactive, no sound when all controls at zero)
Tonal Range:
• Classic fat bass warmth
• Contemporary valve punch with harmonic richness
• Designed for: Studio recording, intimate gigs, and DI integration

DIMENSIONS & WEIGHT

• Height: 383 mm
• Width: 570 mm
• Depth: 351 mm
• Net Weight: 12 kg

Classic Valve Tone, Modern Flair

The Ashdown CTM-30-Tweed is a 30-watt all-valve bass amplifier finished in stylish twee, combining vintage looks with timeless tone. Built for players who crave warmth and depth of real tubes, it offers an organic sound that modern class D amps often cannot match. Perfect for the studio or intimate gigs, it's a compact powerhouse with undeniable character.

Compact Yet Commanding

Despite its modest rating, the CTM-30 Tweed delivers punch well beyond its wattage, thanks to four EL84 power tubes paired with an ECC83 and EC82 preamp stage. Its balanced DI output makes recording simple and seamless, while 4 and 8 Ohm speaker outputs provide plenty of flexibility for cabinet pairing. Whether live or in the studio, the CTM-30 Tweed ensures your tone always shines.

Flexible EQ and Switching Options

The CTM-30's passive 3-band EQ (Bass, Middle, Treble) provides highly interactive control, letting you sculpt a wide range of tones. Add in Bass Shift, Mid Shift, and Bright switches, and you unlock an even broader palette, from deep vintage warmth to punchy modern edge. With the EQ section designed as a true passive tone stack, don't be afraid to push the controls hard, the amp responds musically across the entire sweep.

Integrate Your Pedals with Ease

For players who love colouring their tone with pedals or multi-effect, the CTM-30 Tweed offers a valve-driven effects loop right on the front panel. With its valve-recovered return, it ensures your pedals integrate seamlessly without tonal degradation, preserving the right character of your all-valve sound while giving you the flexibility to expand your rig.

Built to Inspire, Built to Last

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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