Ashdown CTM-300

Hand-built in the UK Custom Shop, the CTM-300 delivers 300 watts of all-valve power through six KT88s and a five-valve preamp, offering everything from smooth ’60s warmth to roaring ’70s growl and modern punch. Housed in rugged marine-grade birch ply with heavy-duty handles, it features Deep, Mid Shift, and Bright switches, a user-adjustable bias with dual-function VU meter, and individually fused tubes for easy maintenance. With a tube-driven DI and front-mounted FX loop, the CTM-300 combines vintage character with modern reliability – built for bassists who demand uncompromising tone and power.

Power Output: 300 Watts
• Power Handling: 750 Watts
• Power Requirement: 115–240 Volts
• Preamp Tubes: 1 × ECC83, 1 × ECC832, 1 × ECC99, 2 × ECC82
• Output Tubes: 6 × KT88

• Speaker Outputs: Speakon/Jack
• High Instrument Input: 450mV
• Low Instrument Input: 150mV
• DI Output: Valve-driven transformer derived
• Effects Send: Jack
• Effects Return: Jack

• Frequency Response: 35Hz – 18kHz
• Output Impedance: Minimum 2 Ohms
• EQ: Passive section – Bass, Middle, Treble + Shape push buttons

• H × W × D (mm): 266 × 590 × 336
• Weight: 28.2 kg