Product Specifications

POWER

• Power Output: 100 Watts
• Power Requirement: 115–240 Volts
• Preamp Tubes: 2 × ECC832, 2 × ECC82
• Output Tubes: 2 × KT88

CONNECTIVITY & I/O

• Speaker Outputs: 3 × Jack (8/4/2 Ohm)
• DI Output: Valve-driven transformer derived
• Effects Send: Jack
• Effects Return: Jack

PERFORMANCE

• Impedance: Minimum 2 Ohms
• EQ: Passive section – Bass, Middle, Treble + Shape push buttons

DIMENSIONS & WEIGHT

• H × W × D (mm): 279 × 590 × 254
• Weight: 18.8 kg

Classic All-Valve Power

The CTM-100 delivers 100 watts of authentic valve-driven sound, powered by a classic five-valve preamp and a dual KT88 output stage. Hand-built in rugged marine-grade birch ply, this amplifier combines timeless tone with durability, making it the ideal partner for small to medium-sized gigs. From intimate venues to rehearsals, the CTM-100 ensures consistent performance and unmistakable valve warmth.

Flexible Tone Shaping

With its wide tonal palette, the CTM-100 captures everything from ’60s-style mellow warmth to snarling ’70s growl and modern punch. Standard tone controls offer rich musicality, while Deep, Mid Shift, and Bright switches provide further refinement. The passive EQ circuit is highly interactive, encouraging bold adjustments to unlock a spectrum of sounds. Whether you need subtle cleans or gritty overdrive, the CTM-100 responds dynamically to your playing.

Valve Life Preserver

To extend the life of its valves and reduce downtime, the CTM-100 features user-adjustable bias for its dual KT88s, easily set via the dual-function VU meter on the front panel. The VU meter also doubles as a diagnostic tool, indicating valve or fuse failure. Each output valve is individually fused and user-replaceable, allowing players to carry out maintenance without removing the amp from its case. This design keeps your amplifier reliable and ready for the road.

Tube-Driven DI & Effects Loop

For studio and stage versatility, the CTM-100 includes a valve-driven, transformer-derived DI output with an isolated ground, ensuring pure, noise-free signal transfer. The front-mounted valve FX loop maintains tonal integrity when integrating pedals or processors, making it easy to expand your sound without compromise. These professional features ensure the CTM-100 performs as flawlessly in the studio as it does on stage.

Built to Perform

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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