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DIAMOND J-Drive MK3
Diamond J-Drive MK3
 

Our Price: $219.00

Stock Status:In Stock

Product Code: DIAMND-JDRVMK3

Description
 
DIAMOND J-DRIVE MK3

The J-Drive MK3 is a combination clean boost/overdrive. It's original concept began as the happy marriage of an overdrive with a separately switchable clean boost - a clean boost that could be used on its own or as a means to overdrive the overdrive as a solo boost.

The limited edition J-Drive TR expanded on this idea by adding the ability to transform the clean boost circuit into a higher gain treble boost. Unfortunately, the avaliability of NOS 2N388 JAN mil spec germanium transistors and careful gain selection for those limited the TR's long term production. The TR did introduce a new, more liquid drive section that Diamond really liked, and one that was not reliant on limited avaliability components.

The newer J-Drive MK3 has been design to incorporate that same TR overdrive circuit, including Schottky diode clipping, bright shelf EQ and transformer output smoothing, along with a new two-transistor clean boost section. This amazing new MK3 unit combines both concepts from the orginal J-Drive and the TR.

The ultimate new overdrive unit.

Specifications:
- true bypass signal path for both the clean boost and drive sections
- discrete clean boost circuit with JFET input/BJT amplifier
- premium audio components, including 2% polypropylene capacitors, 1% metal film resistors and a Burr Brown OPA2134 opamp
- post-volume control overdrive transformer output stage that smooths upper mids and highs
- 'Close Asymmetry' Schottky diode clipping circuit
- switchable highpass shelf filter for additional 'bite', implemented without additional active components
- battery or standard negative tip 9V DC adapter operation


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