Koch Amps

The amps of the Dutch company Koch are no longer an insider tip. Nice tube sound, at the same time flexible and settled in a fair price class - these are the most important infos in advance. The studiotone combo could attract all guitarists who want to use the warmth and distortion of a power amplifier at tolerable volumes. On the other hand, this amp with its 20 W also has clean reserves, which should be sufficient in most cases.

Which brings us to the clean channel, which has quite Fender-like qualities: You can choose from fat to sparkling sounds here, with 2 voicing switches (2x for mid, 3x for treble), which effectively modify the sound. The overdrive channel on the other hand really takes off - strong, warm tube sound located between the rough British and settled American sound. The gain will be enough for most people. The Overdrive Boost channel, boosts the same sound even stronger and thus also hi-gain applications are covered. The 3 sounds share one equalizer - in the studio no problem anyway. But also for live applications it is no problem, because the gain staging between clean and overdrive is already set.

The 12" VG12 Koch loudspeaker installed here is built in cooperation with Jensen and it fits perfectly to this small power cube. A highlight not only in the studio, but also when you have a quite delicate situation with the volume live: A recording-out with two simulated speaker types and microphone positions is located at the back. If you have to play silently, one can switch on the power soak and send the signal directly to the mixer - completely without any noise. Excellent tube sound with many useful features - not just for the studio!

• Power: 20W
• Equipped with: 1x 12" VG12-60 Koch loudspeaker
• 3 Channels: Clean, overdrive, overdrive boost
• Class A
• Tubes: 2x EL 84
• Passive bass - mid - treble equalizers
• 2 Vocing switches: Mid shift (2-way), bright (3-way)
• Separate loudspeaker outputs: 4, 8, 16 ohm
• Speaker on/ off switch
• Recording output
• Effect loop
• Reverb
• Headphone output
• Dimensions: 45 x 24 x 44 cm
• Weight: 17.5 kg
• Incl. FS2-ST foot switch

• 2 Channels
• Tubes: 12AX7
• Clean Channel with volume control
• Overdrive channel with gain- & volume controls
• Noiseless buttons
• 3-Band EQ
• Non-buffered Pre-FX loop
• Fully buffered Post-FX loop
• Monitor output with -10 dbV for power amps
• -10 dbV for FX Return and (Re-Amp) for Clean Channel
• Balanced XLR DI Rec/PA output with speaker emulation
• Remote control input for Midi switcher or external switching
• 12V AC power supply input
• 9V DC/200 mA output
• Dimensions (WxDxH): 13.2 x 20.5 x 6.4 cm
• Weight: 1.2 kg
• Incl. power supply

• Power: 45 W
• Equipped with: 1x 12" Koch VG12-60 speaker
• 2x 12AX7 tubes in the preamp and power amp
• 3 Switchable channels: Clean, Overdrive, High Gain
• 3-Band EQ with contour switch
• Buffered effects loop
• Spring type reverb
• ATR Technology
• Output with loudspeaker emulation and passive filter
• Weight: 19.1 kg
• Dimensions (W x D x H): 540 x 260 x 460 mm
• Includes 2-way footswitch

The amps of the Dutch company Koch are no longer an insider tip. Good tube sound, flexible, and in a fair price range - that's the most important information in advance. The Studiotone Head could appeal to all guitarists who still want to use power amp heat and distortion at tolerable volumes. On the other hand, with 20 watts, the amp also provides clean reserves, which should be sufficient in most cases.

This brings us to the clean channel: it has fender-like qualities, from fat to sparkle you can help yourself here. The overdrive channel is a real hit - warm tube pressure between British-rough and American. Sufficient gain for many people. With the Overdrive Boost channel, the same sound is simply blown even harder, which also covers HiGain applications. The 3 sounds share a tone control - no problem in the studio anyway or in any live situation, because the pre-tuning between clean and overdrive is simply right, whereby 2 voicing switches (2 for mids, 3 for treble) effectively intervene in the sound.

A highlight not only in the studio but also when it's getting tricky with the volume level in a live situation, a recording out with 2 simulated speaker types and microphone positions each is located at the back; if you want it to be silent, you can switch on the power soak and go directly into the desk completely without noise. The speaker outputs are suitable for all kinds of speakers, so you can choose the ideal speaker for your small head or take the right equipment for every possible application. Excellent tube sound with many useful features; not only for the studio!

• Tube driven
• 2x EL 84 ClassA
• Power: 20 watts
• 3 Channel
• Clean-Overdrive-Overdrive Boost
• Passive bass-mid-treble tone controls
• 2 Voicing switches: Mid Shift (2-way), Bright (3-way)
• Speaker outputs (4-8-16 Ohm)
• Speaker on/off switch
• Recording output
• Effect Loop
• Reverb
• Dimensions (W x H x D): 440 x 280 x 230 mm
• Incl. FS2-ST footswitch

The amps of the Dutch company Koch are no longer an insider tip. Nice tube sound, at the same time flexible and settled in a fair price class - these are the most important infos in advance. The Studiotone XL Combo could attract all guitarists who want to use the warmth and distortion of a power amplifier at tolerable volumes. On the other hand, the XL version with its 40 W also has clean reserves, which should be sufficient in most cases.

Which brings us to the clean channel, which has quite Fender-like qualities: You can choose from fat to sparkling sounds here, with 2 voicing switches (2x for mid, 3x for treble), which effectively modify the sound. The overdrive channel on the other hand really takes off - strong, warm tube sound located between the rough British and settled American sound. The gain will be enough for most people. The Overdrive Boost channel, boosts the same sound even stronger and thus also hi-gain applications are covered. The 3 sounds share one equalizer - in the studio no problem anyway. But also for live applications it is no problem, because the gain staging between clean and overdrive is already set.

The 12" VG12 Koch loudspeaker installed here is built in cooperation with Jensen and it fits perfectly to this small power cube. A highlight not only in the studio, but also when you have a quite delicate situation with the volume live: A Recording-Out with two simulated speaker types and microphone positions is located at the back. If you have to play silently, one can switch on the power soak and send the signal directly to the mixer - completely without any noise. Excellent tube sound with many useful features - not just for the studio!

• Tubes: 4x EL 84 Class A
• Power: 40 W
• 3 Channel
• Clean - overdrive - overdrive boost; all with their own volume knob
• Passive bass - mid - treble equalizer
• 2 Vocing switches: Mid shift (2-way), bright (3-way)
• Equipped with: 1x 12" VG12-60 Koch loudspeaker
• Separate loudspeaker outputs (4-8-16 O)
• Speaker on/ off switch
• Recording output
• Effect loop
• Reverb
• Headphone output
• Dimensions: 50 x 47 x 28 cm
• Weight: approx. 20 kg
• Incl. FS2-ST foot switch

• Suitable for Koch Studiotone 20 Combo
• Material: Nylon
• Colour: Black

• Power Attenuator 120 W
• Air cooled
• Speaker simulator and DI box
• 8 Ohm version