Koch CTII20/H Classictone II Guitar Amp Head – 20W Class A Tube Head, 3 Channels & Reverb

The Koch CTII20/H Classictone II is a 20-watt, all-tube Class A amplifier head designed for guitarists seeking classic tube tone in a compact, powerful package. This head combines vintage looks with a warm, dynamic tone. Thanks to its EL84 power tubes and 3x 12AX7 preamp tubes, this amp delivers a clear, bell-like clean and a rich, British-style overdrive with natural compression.

With three foot-operated channels (Clean, Overdrive, Overdrive Boost), a passive 3-band EQ , a long spring reverb , and three-position master volume (Home, Studio, Stage), this amp head offers ultimate flexibility for home, studio, or stage use. The speaker on/off switch , balanced recording output with speaker simulation , and serial effects loop make it a versatile solution for both recording and live use.

Specifications:

• Type: Full tube amplifier head (Class A)
• Power: 20 watts
• Output tubes: 2x EL84
• Preamp tubes: 3x 12AX7
• Channels: 3 (Clean, Overdrive, Overdrive Boost) – foot-operated
• Tone Control: Passive – Bass, Mid, Treble
• Reverb: Spring type, long reverb
• Master volume modes: Home / Studio / Stage
• Effect loop: Serial (10 dBV)
• Recording output: Balanced, with speaker simulation
• Speaker outputs: 4, 8 and 16 Ohms
• Speaker on/off switch
• Included: 2-way footswitch
• Dimensions: nb (compact amplifier head size)
• Weight: approx. 10 kg

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