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    • ALFA SERIES NEW 2026
    • JUPITER SERIES
      • Jupiter Jnr 20 Combo
      • Jupiter 45 Combo
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      • Jupiter Stacks
    • STUDIOTONE SERIES
      • Studiotone 20 combo
      • Studiotone 40 combo
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      • Studiotone Small Stack
    • CLASSICTONE SERIES
      • Classictone II Combo
      • Classictone II Head
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      • Classictone II Half Stack
    • AMERICAN SERIES
      • Durango 6 Combo
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USA Music Import

The Koch Studiotone 20/40 Head.

Afbeelding

Identical Architecture, Zero Compromise

Despite their small footprint, Koch has cut no corners. Both heads feature the identical, comprehensive toolset that has made the Studiotone series an industry benchmark for over two decades:

  • Three Foot-Switchable Channels: Effortlessly shift from warm, pristine American Clean to rich British Overdrive and high-gain Overdrive Boost.
  • Smart Analog Recording Output: Features authentic speaker-voicing and mic-placement simulation to send pure, cranked-cabinet tube tone straight to the mixing board or DAW.
  • Built-in Power Soak: Turn off the speaker output entirely to record or practice in absolute silence while keeping your power tubes cooking hot.
  • Gig-Ready Routing: Includes a serial effects loop, authentic short-scale spring reverb, a dedicated headphone jack, and multiple speaker outputs (4, 8, and 16 ohms) to pair flawlessly with any speaker cabinet.

Big tone no longer requires a heavy lift. The Koch Studiotone Heads offer the perfect blend of lightweight portability, intelligent engineering, and uncompromising analog power.

Boutique Power in a Lunchbox Format

For guitarists who want the legendary versatility of the Studiotone series but prefer the flexibility of a separate head and cabinet setup, the Studiotone 20 and 40 XL Heads deliver premium, all-tube tone in an ultra-portable format. Affectionately known as "lunchbox heads," these compact tone machines pack the exact same smart features and multi-channel architecture as their famous combo counterparts into a remarkably small, lightweight chassis.
Whether you need a grab-and-go companion for club gigs or a versatile centerpiece for your recording studio, there is a Studiotone head tailored to your volume requirements.

Two Flavors of Pure Tube Power

The Studiotone 20 Head (20 Watts / 10 KG):
Driven by two EL84 power tubes, this model gives you gorgeous Class-A tube saturation, sparkling cleans, and dynamic crunch at volume levels that are perfect for club stages, rehearsals, and studio tracking.

The Studiotone 40 XL Head (40 Watts / 12 KG):
If you need extra muscle, the XL version doubles the firepower with four EL84 power tubes. It delivers towering clean headroom, a tighter low-end response, and the raw acoustic authority needed to anchor the loudest live stages.
Afbeelding

A CLOSER LOOK

Picture

STUDIOTONE 20 / 40 HEAD

Two sizes, one legendary feature set. Lightweight, lunchbox convenience meeting 20 or 40 watts of pure all-tube power.
Picture

TONE VOICING

The 2-way ‘Mid Shift’ allows you to boost the mid frequencies around 800 Hz, and the 3-way ‘Bright’ switch allows you to cut or boost the high frequencies for fine tuning the top end.
Picture

RECORDING / PA OUT

Launched over 20 years ago and still unmatched. The Studiotone's fully analog recording output features built-in speaker voicing and mic placement simulation, delivering timeless tube warmth directly to your tracks.

SPECIFICATIONS:

Amp configuration  

STUDIOTONE 20 HEAD:
  1. Class-A design 3x 12AX7 Pre-amp tunes
  2. 2x EL84 Powertubes
    STUDIOTONE 40 HEAD (XL):

  3. Class-A design 3x 12AX7 Pre-amp tunes
  4. 4x EL84 Powertubes

The TONE

  1. ​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

Connectivity and OUTPUT

  1. 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

HARDWARE & HANDLING

​-Two button footswitch (included) with:
* Channel select
*  Gain Boost or Reverb on/off
(Selectable on back panel)​

HEADS DIMENSIONS & Weight

STUDIOTONE 20 HEAD
  • Dimensions 44 w x 23 d x 24,5 h.
  • Weight 10 kg

STUDIOTONE 40 HEAD (XL)
  • Dimensions 50 w x 28 d x 28 h.
  • Weight 12 kg
Koch Amps
Buys ballotstraat 3bu3
2693BD 's-Gravenzande
The Netherlands
Phone: +31 (0)174 515015
C.o.c. Haaglanden: 27236558 
VAT nr.: NL002025033B09

​
© koch-amps 2026