JMH Custom Overdrive Special

JMH Custom Overdrive Special

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Overdrive Special, Tube Guitar Amp Head from JMH Custom.

2 user reviews
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JMH Custom Overdrive Special tech. sheet

  • Manufacturer: JMH Custom
  • Model: Overdrive Special
  • Category: Tube Guitar Amp Heads
  • Added in our database on: 11/27/2010

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JMH Custom Overdrive Special user reviews

Average Score:5.0( 5/5 based on 2 reviews )
 2 reviews100 %

fab2zik's review (This content has been automatically translated from French)" Jean-Michel Herdhuin, the magician of sound ..."

JMH Custom Overdrive Special
The amp crafted by Jean Michel Herdhuin Dumble Overdrive Special is a 50W (lamps of course!) Made entirely by hand. The wiring, carefully selected components and the elements are arranged very strict on the chassis. The finish of the assembly for the cherry wood version I chose is just beautiful.
1 channel, volume, bright switch, mid boost, clean / od, treble, middle, bass, level, drive, master, presence and a effects loop. In fact, you need to have the sound as clear as in overdrive.
2 6L6 power lamps and 3 lamps for the preamp.


The amp is vintage type, so for the aggressive music go your way.


Well, believe it or not, I have rarely heard such a sound! and I weigh my words! Lovers sounds sweet, smooth, creamy, subtle, rich and so, I am filled and I think we are not far from the sounds "to Vaughan," short, "JMH Custom Overdrive" is a killing! The amp gives off an incredible heat and does not breath. And this is with my Start ', my Les Paul, or my very old art 345 is always the same conclusion, reversing! Jean-Michel has done a work of craftsmanship.


I had US amps and I think that Dumble Jean Michel is a great amp like my KINGSLEY but also very different.
Thank you to Jean Michel for his work, listening and good humor. So do our craftsmen work, we have real wealth in France!

domge's review (This content has been automatically translated from French)

JMH Custom Overdrive Special
Dumble Overdrive Special 50w a handmade cherry wood, assembly,
diagram of time, Jean Michel Herdhuin manufactures the home in his workshop. How lucky to be able to JMH by such legendary amp albeit very
very expensive in hand and nowhere to be found.
1 channel, volume, bright switch, mid boost, clean / od, treble, middle, bass, level,
drive, master, presence, what it takes to shape the sound and light overdrive
3 lamps in preamp, and 2 6L6GC power, effects loop, bias controls
very convenient.
The amp breathes quality, cherry is beautiful, great work. The amp is vintage


at will, without breath, even at low volume the sound is there.
The rich sound of the amp allows you to explore an incredible range of sounds,
except metal!


A single channel, but what channel! A clean soft, subtle, rich, balanced,
Corrections tonal sounds very reactive deploy to fade
best fender and other great art. In microwave or double that of single
Fortunately, the instrument responds to every nuance of your playing and it is not
finished, the beauty of this amp head is the OD, friends should drop to scratch
the hot cream, even cranked the overdrive is still accurate,
releasing an incredible heat. Once you stay connected for hours to savor

The Dumble


Jean Michel is an outstanding amp. After getting amps U.S.
Custom Audio, Bogner Shiva, Mesa Boogie I like it there very different and
engaging, with a quality guitar is the foot insured.
Thank you to Jean Michel gain access to this magic.

JMH Custom Overdrive Special images

  • JMH Custom Overdrive Special
  • JMH Custom Overdrive Special
  • JMH Custom Overdrive Special
  • JMH Custom Overdrive Special

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Other names: overdrivespecial

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