Marshall Pre Amp Kits / Marshall 4 Valve Harma ECC81 STR Pre Amp Kit Low Gain 40

Marshall 4 Valve Harma ECC81 STR Pre Amp Kit Low Gain 40 Marshall 4 Valve Harma ECC81 STR Pre Amp Kit Low Gain 40 Click on image(s) above to view larger
£94.00

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These specially chosen pre amp upgrades kits are designed to give deliver the sound that you want from your Marshall amplifier. Our low gain kits provide the cleanest sound in the pre amp stage which many players like. Our medium gain kit simply removes the edge off the sound and provides a later breakup when compared to a regular ECC83 type. The number in the title indicates the amount of gain reduction the kit provides. Our standard gain Classic kit is our most popular as this delivers a sound as close to the classic Mullard 3d midrange tone. With this kit you get a smooth warm crunch which is rich in harmonics and detail. Our High gain kit provides the same tone with earlier break up and maximum over drive. We then select these and supply these in special sets for Marshall Owners.
Gain reduction 40%

This 4 valve set is specially selected for Marshall amplifiers and covers all Marshall models that have a 4 valve pre amp section with the phase inverter in the V 4 position. These include Vintage & Modern models 2266c, 2266, 2466, DSL series such as DSL2001, DSL401, DSL50 & DSL100 and TSL series TSL60, TSL601, TSL602, TSL100 and TSL122 with a 4 valve pre amp section.

These sets are for the guitarist who wants extended clean headroom and later break up.
In position V1 the valve acts as a dedicated gain stage for each channel. By putting this valve the V1 first gain position you will lower the gain of a pre amp circuit by around 40%. A reduction of typically 40 mu or 4 db of gain

This valve set up has been very popular with guitarists that want a cleaner amplifier sound. Especially when using pedals in the front end to get their distorted sound. The ECC81 adds more clarity and removes the fizz and mush that many players have problems with. This valve produces a warm rounded clean sound with low gain which will clean up and tame the harshest sounding pre amps.

The set consists of 4 valves

1 Specially Selected Harma ECC81 STR for position V1
2 Specially Selected Harma ECC83 Retro in V2 & V3
1 Specially Selected & Balanced Harma ECC83 Retro in V4

The Harma valves are specially selected for this kit using very tight gain parameters and
Gain selection of triodes sections. The valves are carefully selected for low noise and low levels of hiss and ambient noise with a signal to noise ratio better than -80dBV.

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