Amplifier Heads for Bass

The Ashdown Custom Shop CTM 100 is an all-tube head that exudes authenticity. Its five preamp tubes and power KT88s generate 100 watts of vintage warmth. The marine birch plywood chassis and transformer DI define British excellence. A good buy for sound purists.

ARTICLE N° 114644
Some amps plug in, others switch on, the Ashdown Custom Shop CTM 100 wakes up. This all-tube head, assembled in the UK, works with five preamplifier tubes and two robust KT88s in the power section. The result? One hundred watts of heat that can't be faked. It's the antithesis of digital sound.

The marine birch plywood chassis is not an aesthetic choice. This construction absorbs parasitic vibrations, leaving the lamps to work in an acoustically stable environment. You get a tonal purity that metal enclosures struggle to match. It's the basis of a sound that holds up.

Three-band passive EQ, complemented by the Shape switch, gives you intuitive, musical control. The Deep, Mid Shift and Bright buttons are shortcuts to classic sound colours. The tube-controlled transformer DI ensures that the sound coming out of the console is an exact copy of what you hear in the room.

The dual-function VU meter lets you monitor the bias of the KT88s, a setting that true enthusiasts appreciate. The front effects loop integrates perfectly into your pedalboard. With its three outputs for different impedances, the CTM 100 drives a wide range of cabinets with ease.

This is not an amp for those in a hurry. It's an instrument for those who believe that the best sound comes from patience and analogue warmth. The Ashdown Custom Shop CTM 100 is an investment for life, designed for bassists who listen with their ears and play with their hearts.
DI output
 Yes
Effects
 Looper
Power lamps
 KT88
Preamp Tube
 12AU7 (ECC82)
External effects loop
 Yes
RMS power (W)
 100
Speaker output
 Yes
Frequency setting
 3-band
Weight
 18,8 kg
Country of production
 United Kingdom
Tube circuits
 Yes
  • Ashdown Custom Shop CTM 100
  • Type of instrument : Electric bass
  • Amp type: All-tube bass amp head
  • Series : CTM
  • Manufacturing : United Kingdom
  • Chassis : Rugged marine birch plywood
  • Power: 100 W
  • Power supply: 115-240 V
  • Preamp: 5 tubes (2 × ECC832, 2 × ECC82)
  • Output lamps: 2 × KT88
  • Equalisation: Passive Bass / Mid / Treble + Shape
  • Tone switches: Deep / Mid Shift / Bright
  • DI: Valve-driven transformer
  • Effects loop: Front jack
  • Bias adjustment: Dual function VU meter
  • Valve protection: Individual fuses
  • Minimum impedance: 2 Ohms
  • Speaker outputs: 3 x Jack (8/4/2 Ohms)
  • Acoustic character: Vintage and modern
  • .
  • Dimensions (L × H × W): 590 × 279 × 254 mm
  • Weight: 18.8 kg
Ashdown - Custom Shop CTM 100
Ashdown - Custom Shop CTM 100
1 249,17 € excl VAT
including eco-part : 0,07 €
Resupply
Arrival expected on Jun 30, 2026
Guarantee 3  years
Fred
Fred
Eric
Eric
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