Koch J45/C112G Jupiter Guitar Amplifier – 45W Combo, 12” Speaker, 3 Channels & ATR, Green

The Koch J45/C112G Jupiter is a 45-watt hybrid guitar amplifier combo that combines modern technology with classic tube tone, all housed in a stylish green cabinet. Featuring Koch's proprietary ATR (Authentic Tube Response) technology, this amplifier offers the saturation and dynamics of a true tube amplifier, but with the reliability of a solid-state amplifier. Equipped with two 12AX7 tubes in the preamp and a custom-designed 12” VG12-90 speaker , the Jupiter delivers a versatile and rich sound that effortlessly adapts to any playing style.

The three switchable channels (Clean, Overdrive, and High Gain) offer plenty of flexibility, with separate gain and volume controls for each. The 3-band EQ with contour switch provides additional tone shaping, while the built-in spring reverb adds extra depth to your sound. Thanks to the continuous dimming function, you can reduce the output power without losing your sound. With a buffered effects loop, speaker-emulated output, multiple speaker outputs, and an included footswitch, this amp is perfect for both studio and stage use.

Specifications:

• Type: Hybrid guitar amplifier combo
• Power: 45 watts
• Technology: ATR (Authentic Tube Response)
• Tubes: 2x 12AX7 (preamp + poweramp simulation)
• Speaker: 1x 12” Koch VG12-90 (custom designed)
• Color: Green
• Channels: 3 (Clean, Overdrive, High-Gain)
• Regulations:
• 2 sets of Gain and Volume
• 3-band EQ with contour switch
• Reverb: Spring-type, controllable from the front panel
• Dimmer: Stepless control of output power
• Effect loop: Buffered, serial
• Speaker outputs: 4, 8 and 16 Ohms
• Speaker-emulated recording output (passively filtered)
• Included: 2-way footswitch (channel select & boost/reverb)
• Dimensions: 54 x 46 x 26 cm
• Weight: 19.1 kg