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KOCH Studiotone XL 40W Guitar Amplifier Head

SKU: KHST40H MFR: ST40-H
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Key Features

  • Experience pristine sound quality with this KOCH 40W tube guitar amp head.
  • Versatile 3-channel amp head offers a wide range of tonal possibilities for any genre.
  • Shape your tone easily using the intuitive EQ controls on this guitar amplifier head.
  • Perfect for studio or stage, this 40W amp head delivers plenty of power and headroom.
  • Use the built-in effects loop to integrate your favorite pedals seamlessly with this amp.
  • Compact and portable, this tube amp head is ready for gigs and recording sessions.
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Special Order?Estimated to Ship: 08/23/2025
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KOCH Studiotone XL Specifications

Input Impedance

Input Impedance

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  • Input Normal

    1M Ohms

  • From FX

    100K Ohms

Output Impedance

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  • To FX

    1K Ohms

Signal Levels

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  • Effects Loop

    -10 dBV

  • Preamp

    1x 12AX7LM (low microphonics)
    1x 12AX7

  • Power amp

    1x 12AX7
    4x EL84

Output Power

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  • Output Power

    40W (RMS) in 4, 8 or 16 Ohms

  • Mains

    100-230VAC, 50-60Hz
    100W

General

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  • Dimensions (WxDxH)

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

  • Weight

    17kg (37.48 lbs)

  • UPC Code

    8718053960074

About KOCH Studiotone XL

A powerhouse in a compact package, the Koch Studiotone XL 40W Guitar Amplifier Head is far more than just another tube amp. This all-tube head, steeped in the rich Koch tradition, delivers a robust sound that belies its compact size and echoes the iconic British valve amps of the 1960s.

Equipped with four EL84 power tubes operating in Class A, this amplifier head boasts a newly designed speaker and cabinet, three foot-switchable channels, and two potent voicing switches. The three distinct channels - Clean, Overdrive, and Overdrive+ - each come with individual volume controls, allowing for a seamless transition from warm, rounded tones to saturated EL84 overdrive and compression.

The Studiotone XL also features a 2-way 'Mid Shift' for boosting mid frequencies around 800 Hz and a 3-way 'Bright' switch for fine-tuning the high frequencies. This level of control ensures that you can shape your sound to your exact preferences.

The surprises continue on the back panel, where you'll find a serial effects loop, a recording output with microphone placement and cabinet style simulators, and two line outputs - one unfiltered and one low level. The 'Headphone Out' jack and speaker outputs at 4, 8, and 16 Ohm cater to any combination of speakers, making this amplifier head incredibly versatile.

The built-in Power Soak and Speaker on/off switch allow for silent recording or headphone use, while the short scale spring reverb tank with front-mounted level adjustment adds depth and dimension to your sound.

In conclusion, the Koch Studiotone XL 40W Guitar Amplifier Head is not just a compact guitar amplifier, but a versatile tool for shaping and refining your sound, making it a standout choice in today's market.

KOCH Studiotone XL Features

  • 4 xEL84 Tubes
  • 2 x 12AX7 pre-amp tubes
  • 1 x 12AX7LM pre-amp tube
  • 3 channels (clean, overdrive & overdrive boost)
  • foot-switchable and all with their own volume control
  • 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 sound quality with this KOCH 40W tube guitar amp head.
  • Versatile 3-channel amp head offers a wide range of tonal possibilities for any genre.
  • Shape your tone easily using the intuitive EQ controls on this guitar amplifier head.
  • Perfect for studio or stage, this 40W amp head delivers plenty of power and headroom.
  • Use the built-in effects loop to integrate your favorite pedals seamlessly with this amp.
  • Compact and portable, this tube amp head is ready for gigs and recording sessions.

What's in the box:

  • KOCH Studiotone XL 40W Guitar Amplifier Head
  • 2 Way Footswitch
  • KOCH Warranty