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KOCH Studiotone 20 20W Guitar Amplifier Head

SKU: KHST20H MFR: ST20-H
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Key Features

  • Experience pristine tube amp tone with the KOCH Studiotone 20's responsive EQ controls.
  • Unleash 20W of valve power, perfect for recording or small gigs with this guitar amp head.
  • Shape your sound with three channels, offering a range from clean to high-gain amp tones.
  • Craft your perfect tone using the bass, mids, and treble EQ for ultimate sound shaping.
  • Enjoy versatile connectivity with 4/8/16 Ohm impedance options for various cabinets.
  • The KOCH Studiotone 20's valve technology delivers classic, warm, and dynamic amp tones.
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Special Order?Estimated to Ship: 08/09/2025
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KOCH Studiotone 20 Specifications

  • Technology

    Valve

  • Power

    20W

  • Channels

    3

  • Gain Levels

    3

  • EQ

    Bass/mids/treble

  • Pre Amp Valves

    3x 12AX7

  • Power Amp Valves

    2x EL84

  • Impedance

    4/8/16 Ohms

  • Dimensions (WxDxH)

    50 x 28 x 47cm (19.68 x 11.02 x 18.50")

  • Weight

    12kg (26.46 lbs)

  • UPC Code

    8718053960050

About KOCH Studiotone 20

Just when you thought you knew all about compact guitar amplifiers, the Koch Studiotone 20 20W Guitar Amplifier Head comes along to redefine your expectations. Far from being just another small combo, this powerhouse in a petite package is steeped in the classic Koch tradition, delivering a sound that's not only bigger but also richer than you'd anticipate.

Equipped with two EL84 power tubes operating in Class A, a newly engineered speaker, and a meticulously designed cabinet, the Koch Studiotone 20 20W Guitar Amplifier Head echoes the iconic British valve amps of the 1960s. Its three foot-switchable channels - Clean, Overdrive, and Overdrive+ - offer a wide spectrum of sound, ranging from warm, rounded tones to saturated EL84 overdrive and compression.

The amplifier's 2-way 'Mid Shift' enhances the mid frequencies around 800 Hz, while the 3-way 'Bright' switch provides the flexibility to cut or boost the high frequencies, enabling you to fine-tune the top end to your liking.

But the surprises don't stop there. The back panel of the Koch Studiotone 20 20W Guitar Amplifier Head is a treasure trove of features. It houses a serial effects loop, a recording output complete with microphone placement and cabinet style simulators, two line outputs (one unfiltered and one low level), and a 'Headphone Out' jack.

The amplifier is also compatible with a variety of speakers, thanks to its speaker outputs at 4, 8, and 16 Ohm. The built-in Power Soak and Speaker on/off switch allow for silent recording or headphone use, while the short scale spring reverb tank, complete with a front-mounted level adjustment, adds to the versatility of this compact amplifier.

In conclusion, the Koch Studiotone 20 20W Guitar Amplifier Head is not just a compact amplifier; it's a testament to Koch's commitment to delivering versatile, high-quality sound in a compact package.

KOCH Studiotone 20 Features

  • 3 channels (Clean, Overdrive & Overdrive boost) foot-switchable
  • One set of passive bass-mid-treble tone controls
  • Two front-panel voicing switches (mid-shift 2 way, bright 3 way) for all channels
  • 4, 8 & 16 Ohm speaker outputs plus speaker on/off switch
  • Serial effects loop (10 dBV signal level)
  • Recording output with speaker simulation and 2 voicing filters
  • Direct outputs (non-filtered, clean channel & headphone)
  • Short scale three spring reverb tank
  • 2 way footswitch included

Key Features

  • Experience pristine tube amp tone with the KOCH Studiotone 20's responsive EQ controls.
  • Unleash 20W of valve power, perfect for recording or small gigs with this guitar amp head.
  • Shape your sound with three channels, offering a range from clean to high-gain amp tones.
  • Craft your perfect tone using the bass, mids, and treble EQ for ultimate sound shaping.
  • Enjoy versatile connectivity with 4/8/16 Ohm impedance options for various cabinets.
  • The KOCH Studiotone 20's valve technology delivers classic, warm, and dynamic amp tones.

What's in the box:

  • KOCH Studiotone 20 20W Guitar Amplifier Head
  • 2 Way Footswitch
  • KOCH Warranty