Shop online for Koch Twintone Mark III Tube Class A 1X12" Combo Amplifier today. Now available for purchase from Midlothian Music of Orland Park, Illinois, USA

Koch Twintone® Mark III Tube Class A 1X12" Combo Amplifier

Midlothian Music values the importance of quality in craftsmanship, which is one of the many reasons why we are proud to be an Authorized Koch Dealer. This product was made in the United States. This item is new. 
Regular price $ 1,499.99 Sale price $ 2,017.40 Unit price per

Koch Twintone Mark III Tube 1X12" Combo Amplifier

The new Twintone Mark III has been re-styled and has also been partly redesigned and improved. But of course the best features of the Twintone I and II have stayed. As the enclosure is slightly bigger the amp has a deeper and warmer low-end but still gives you a that well defined and open sound from its earlier versions. Its compact size and relative light weight, disguise the power, versatility and ease of use this amplifier has to offer. EL34 Power Tubes supply 50 watts of power which can be used to drive the combo speaker on its own or in combination with any of the Koch extension speakers. The Twintone III has five speaker jacks for connecting 4, 8 and 16 ohm speaker cabinets and/or the internal combo speaker. The superb sounding Clean channel has not been changed in this new version and will again give you the same wonderful warm and crystal clear clean sounds you are used to from this amp.The Overdrive channel however has been re-voiced. The crunch and lead tones will give you a more complex and rich sound without losing its definition and depth. With these two channels you can go from a pristine clean sound through exciting crunch tones up to saturated overdrive with infinite sustain. The Bright Clean guitar input trims the mids somewhat for humbucking pickups and makes sure the pure tone of the Twintone III is available for all types of guitar pickups. Also new are the two separate footswitchable Master Volumes on the front panel, Rhythm and Solo Volume. The Presence control has been relocated from the Overdrive channel to the power amp section. This creates a more authentic sparkle when turned open and it now operates on both channels, Clean and Overdrive. The long tank spring reverb has a level control on the back panel for just the right amount of effect. Naturally the amp still has its recording output of which the filter has been improved so the output now offers true speaker emulation for great authentic recording of your favourite guitar sound.


  • 50W All-tube amplifier
  • 4 x 12AX7 pre-amp tubes and
  • 2 x EL34 power-tubes
  • Normal and Bright Clean inputs
  • Three foot-switchable channels: Clean, Crunch and Lead
  • Seperate passive bass-mid-treble tone controls for both channels
  • Two Masters (Solo/Rhythm)
  • providing two controllable volume levels for all channels and settings
  • Presence on master section
  • Koch VG12-90 12 speaker
  • Classic long scale model reverb with level adjust and foot switchable
  • Parallel and/or Serial effects loops
  • Recording output (improved filter for true speaker emulation)
  • 4-way footswitch included
  • Combo weight: 55 lbs
WE'RE EXPANDING!! 100's of music instruments and music gear MUST GO before we move into our expanded space this April! We are putting new items on display daily in our temporary store (around the corner next to FedEx). Click here to buy some of our clearance instruments online.

The Midlothian School of Music is now taking students for all instruments, including voice! Call us at 708-403-3733 or click here for more information.

When it comes time for you to let an instrument go, please consider donating it to the Guitars 4 Vets organization. Midlothian Music is a drop-off center for the program. Click here to learn more.

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Another hallmark of the Midlothian Music legacy since 1960 is our full-service repair center. No matter where you bought your music instrument, we have trained technicians with the experience and talent ready to perform most repairs in-house. Learn more about our services by clicking here.

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