Pricing and availability

We compare 600+ stores and found this item at 1 store. Prices updated .

Average Price: $1,090

High-end/Boutique

$300

$701+

Price Tier

Budget

Standard

High-end

Price History

Based on price data from 1 merchant for "Koch Amps Studiotone 20 Combo". Prices shown reflect NEW condition. Tracking began Apr 19, 2026.

* Product prices and availability are updated by Equipboard every 24hrs and are subject to change. Equipboard may receive compensation for purchases made at participating retailers linked on this site. This compensation does not affect what products or prices are displayed, or the order of prices listed. For more information, please refer to our affiliate disclosure.

Description

The Koch Amps Studiotone 20 Combo is a versatile powerhouse that brings studio-quality sound to your fingertips. This combo amplifier from the renowned Dutch brand Koch is designed for guitarists who crave both warm tube tones and the flexibility of modern features. Whether you're playing in your bedroom or on stage, the Studiotone 20 ensures your sound is rich and dynamic.

The Studiotone 20 features three intuitive channels: Clean, Overdrive, and Overdrive Boost, each delivering distinct tonal characteristics. The clean channel offers a range of sounds from fat and warm to bright and sparkling, akin to classic Fender tones, thanks to its dual voicing switches. On the other hand, the Overdrive and Overdrive Boost channels serve up a robust mix of British grit and American warmth, making it perfect for anything from blues to classic rock and beyond.

Moreover, the Studiotone 20 is equipped with a custom 12" VG12-60 Koch speaker, developed in collaboration with Jensen, providing a full-bodied sound that belies its compact size. For recording enthusiasts, the amp includes a recording out with simulated speaker types and mic positions, making silent recording a breeze. The built-in power soak allows you to achieve driven tones at lower volumes, ideal for both studio recording and live performances.

Key Features:

  • 3 Channels: Clean, Overdrive, Overdrive Boost
  • Power: 20 watts
  • Speaker: 1x 12" VG12-60 Koch, designed with Jensen
  • Class A with 2x EL84 tubes
  • Passive Bass-Mid-Treble tone control
  • Voicing switches: Mid Shift (2-way), Bright (3-way)
  • Separate speaker outputs: 4, 8, 16 Ohm
  • Speaker on/off switch for silent operation
  • Recording Output with speaker simulation
  • Effect loop and built-in reverb
  • Includes FS2-ST foot switch
  • Crafted in the Netherlands

This balance of vintage warmth and modern versatility makes the Studiotone 20 Combo a must-have for any serious guitarist.

Product specs

Available since June 2006
Powerrate in W 20 W
Speaker size 1x 12"
Power Amp Tubes EL84
Channels 3
Reverb Yes
External FX Loop Yes
Recording Output Yes
MIDI Interface No
Connection for External Speaker Yes
Headphone connection Yes
Footswitch connection Yes
Incl. Footswitch Yes
Weight in kg 15,0 kg

FAQs

Is the Koch Amps Studiotone 20 Combo suitable for gigging with a drummer?

Yes, the Koch Amps Studiotone 20 Combo, with its 20-watt power and 12" speaker, is capable of holding its own in small to medium-sized venues, making it suitable for gigging alongside a drummer.

What type of tubes does the Koch Studiotone 20 Combo use, and how does it affect the sound?

The Koch Studiotone 20 Combo uses EL84 power amp tubes, known for delivering a warm, responsive, and dynamic sound with a classic British-style tone, ideal for rock and blues genres.

Does the Koch Studiotone 20 Combo include a footswitch, and what functions can it control?

Yes, the Koch Studiotone 20 Combo includes a footswitch that allows you to easily switch between its three channels, providing flexibility during performances.

Can I use the Koch Studiotone 20 Combo with external speakers?

Yes, the Koch Studiotone 20 Combo has a connection for external speakers, allowing you to expand your sound setup as needed.

Does the Koch Studiotone 20 Combo have a headphone output for silent practice?

Yes, the Koch Studiotone 20 Combo features a headphone connection, making it convenient for silent practice sessions without disturbing others.

What are the dimensions and weight of the Koch Studiotone 20 Combo?

The Koch Studiotone 20 Combo measures 44.5 cm in width, 23.5 cm in depth, and 43.5 cm in height, and it weighs 15 kg, making it relatively portable for a combo amp.

Spyros Delta

Spyros Delta

koch studiotone 20 combo - OD+ channel

Video thumbnail for koch studiotone 20 combo - OD+ channel by Spyros Delta

koch studiotone 20 combo - OD+ channel

Spyros Delta

Spyros Delta

Video thumbnail for Koch Studiotone combo 20 - pt.1 by Joe Owl guitars

Koch Studiotone combo 20 - pt.1

Joe Owl guitars

Joe Owl guitars

Video thumbnail for Koch Studiotone combo 20 - pt.2 by Joe Owl guitars

Koch Studiotone combo 20 - pt.2

Joe Owl guitars

Joe Owl guitars

Video thumbnail for Koch Studiotone 20 Combo gitárkombó by HangszerPláza

Koch Studiotone 20 Combo gitárkombó

HangszerPláza

HangszerPláza

Reviews

PROS

  • Acts as an excellent pedal platform with authentic sound

  • Lightweight and easy to transport

  • Versatile three-channel configuration with effective tonal adjustments

  • Special connectivity options including speaker outs and recording output

  • Performs well at low volumes with remarkable sound quality

  • Suitable for a range of styles including jazz, blues, and funk

  • Clean sound has a unique character, likened to Fender but distinct

  • Effective with various guitar types, especially shines with Les Paul

  • Offers massive and airy sound in band settings without high volume

CONS

  • Reverb quality considered below par compared to other features

  • Lack of separate volume control for Overdrive Plus channel

  • Footswitch operation can be cumbersome, requiring multiple presses for mode changes

  • Line Out section described as somewhat treble-heavy

  • Speaker disabling feature may produce occasional popping noise

Critic Reviews

The Koch Studiotone | Vintage Guitar® magazine

vintageguitar.com

The Koch Amps Studiotone 20 Combo packs a punch for its size, delivering robust Fender-like clean tones and a versatile overdrive suited for blues. Its compact design and all-tube circuit make it a solid choice for small-to-medium gigs and recording. However, pushing the clean channel at high volumes may introduce unwanted breakup. Despite its 20-watt limitation, the Studiotone shines with its lush reverb and flexible tone controls, though it may not meet the needs of those requiring pristine clarity at elevated levels. Overall, a gig-ready, feature-rich amp with a strong tonal palette.

positive

5.0 out of 5

Based on 0 Reviews and 1 Rating

5 star
4 star
3 star
2 star
1 star

Artist usage

Add artist
See how Robert Quigley uses Koch Amps Studiotone 20 Combo

Robert Quigley

Guitarist

...
Verified via Photo

A picture Robert took of his rig, including the Leclair Almosta and his Koch Studiotone.

Genre Usage

Based on how artists on Equipboard use this gear, it is most commonly found in the following genres.

More Koch Amps Combo Guitar Amplifiers

Community setups

Similar

Gear Guides

  • Added to Equipboard on by

    fabs24
    fabs24

    Gear IQ 71