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Koch Amps The Greg Signature 50W 2x10 Combo Amplifier

Written by

Elliot Stent

Koch Electronics has been building guitar amplifiers since 1988. With 30 years of experience, the brand has refined its lineup significantly since the early days, now boasting a range of classy boutique-style amps.

"The Greg" is the signature amplifier of flamboyant blues rocker Greg Koch. Boasting a raft of amazing features and appointments in order to meet his specific demands, this amplifier is a premium high-end monster!

Koch Amplification Signature Greg Koch Amp - NAMM 2018

Pure Tube Power

Driven by six 12AX7 tubes in the pre-amp section and a pair of EL34 power tubes, "The Greg" is a full-fledged tube amp that delivers only the most genuine of tones.

The EL34s offer up a strong British voicing, giving a solid mid-range punch to all 3 of this amp's channels. And with 50W of power, "The Greg" has enough headroom and sheer, unbridled volume for even larger-sized venues. 

3 Channels

Boasting 3 channels, the Greg Koch signature amp provides plenty of versatility and tonal options - Clean, Overdrive and Overdrive Boost.

The Clean channel has a bright and chimey British-style sound, with a spanky mid-range and full-bodied low-end. Thanks to its 50W of headroom, the clean will stay smooth without breaking up at high volumes, meaning you won't have to worry about cranking this amp in a live situation.

The Overdrive channel is where the magic happens, with a bold distorted tone that's perfect for Greg's signature blues licks. But if that's not enough, activate the Overdrive Boost channel and you'll get an even raunchier drive tone with increased saturation and character. With enough potent gain to get to hard rock levels, this channel really dishes the dirt - especially when turned up loud!

Modern, High-End Features

Like with most Koch amps, "The Greg" has vintage-inspired aesthetics but it also has many cutting-edge features to satisfy modern players.

On the rear panel of the amp, you'll find a recording output with a passive speaker emulation filter, giving you a convincing mic'd amp sound. This means that you can quickly record studio-quality audio into an interface, or even send a signal directly to a front-of-house PA system for a bigger live sound.

There's also the amp's buffered effects loop section, which can be switched for either series or parallel operation. With a buffered input, you can run your time-based and modulation effects at optimal operation, ensuring that the signal is clear and vibrant. Also featuring a level control, you can adjust the influence of your in-the-loop effects, lowering the mix for a more subtle, unaffected sound.

Footswitchable tremolo and reverb effects are additional features that make this amp stand out from the rest. The long-scale model spring reverb tank gives you that vintage 60s surf-rock vibe, especially when used in conjunction with the built-in tremolo. A sequence switch also allows you to order these two effects, for a wetter or more traditional sound.


  • 50W All-tube amplifier
  • 6 x 12AX7 pre-amp tubes
  • 2 x EL34 power tubes
  • Three foot-switchable channels: Clean, Overdrive and Overdrive Boost
  • Separate Drive, Volume and passive Bass-Mid-Treble tone controls for both channels
  • Foot-switchable OTS (Output Tube Saturation) with Drive and Volume controls
  • Foot-switchable tube Tremolo with ‘Harmonic’ and ‘Normal’ mode, and Speed, Depth and Level controls
  • Foot-switchable Reverb with Dwell, Tone and Volume controls, and a classic long scale model spring reverb tank
  • Sequence switch to select Reverb>Tremolo or Tremolo>Reverb
  • Penthode (full power) / Triode (half power) switch
  • Presence control & Master Volume
  • Buffered Serial or Parallel effects loop with Level control
  • Recording output with passive speaker emulation filter
  • Extension speaker jack with auto matching
  • 2x 10” Jensen Falcon C10-40 speakers
  • 5-way footswitch included
  • Dimensions 65(w) x 54 (h) x 30 (d) cm
  • Weight ca. 25 kg
Inc. VAT


More stock due on Wednesday, 9 February 2022  

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