Koch Twintone II
Koch Twintone II

Twintone II, Tube Combo Guitar Amp from Koch in the Twintone series.

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iamqman 07/11/2011

Koch Twintone II : iamqman's user review

« Not a bad amp »

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Koch is a company based out of the Netherlands and has been building great quality amps for musicians around the world. They have a good reputation as a simple guitar amps that are full of tone. These are high gain monster and they aren't sweet innocent clean amps. Koch is somewhere in between with their gain style and voicing structure.

This amp is a 50 watts blues style amp. They don't market it as a blues amp but that is the tone I hear when I hear this amp in action. You can definitely get a decent distortion from it but the voicing is just blues. I don't think it can be dialed out. Not that it is a bad thing just a particular thing.



* 3-Channels: Clean,Overdrive and Overdrive+
* 4x 12AX7 and 2x EL34 tubes
* Serial and/or Parallel FX-loop
* Solo/Rhythm facility (switchable)
* Accutronics spring reverb (switchable)
* Koch VG12-90 speaker (Combo)
* Built in Power Soak (0, 25 or 50 Watts output power)
* Recording output
* Headphones output
* 5-way footswitch included


This is a three channel amp one dedicate to clean and one for the distortion. What is different to this amp is that it has a middle EQ for the clean channel. Most amps I come across and especially Fender has only volume, bass, and treble. There usually isn't a middle control knob for the clean. That is a simple but great features to have.

The distortion is kind of honky to me. I don't really like the tone of it all that much. It sound small and boxy. The tone of the clean is too but not as noticeable as the overdrive channel. The distortion I feel with the OD and OD+ switch just muddies up things. It isn't very pleasant to hear.


I am not sure what the going rate for one of these amps are used. I know that they are around $1800 new. They are great for the clean tone but I wasn't that impressed with the distortion channels. I would recommend this amp to a blues based player and not a hard rock player. It will sound good in a pop or mild rock setting and do fine. To me this amp is just ok.