Marshall Cryo Pre Amp Kits / Marshall 5 Valve High Gain Harma 7025 STR Pre Amp Upgrade Kit Cryo

Marshall 5 Valve High Gain Harma 7025 STR Pre Amp Upgrade Kit Cryo Marshall 5 Valve High Gain Harma 7025 STR Pre Amp Upgrade Kit Cryo Click on image(s) above to view larger
£122.00

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These specially chosen Cryo pre amp upgrades kits are designed to give what many Marshall owners have wanted for years, Smooth warm crunch with rich harmonics and detail . We have chosen a valve that which gives as close to the classic Mullard 3d midrange tone and smooth even crunch as is possible. We then select these and supply these in special sets for Marshall Owners. Marshall amplifiers are voice of Rock and Roll past, present and in future.These amplifiers have been used by all the music legends. From Clapton's fierce bluesbreaker solos with John Mayall, to the powerhouse slam of Jimmy Page in Led Zeppelin to Steve Jones awesome sound with his JCM800. These Cryo Kits are designed by using specially selected valves and put together to enable you to get the best out of your particular amplifier. These are the closest approach to the original sound.
Maximum Drive

Early Break up

Harma 7025 STR Preamp Cryo Upgrade Kit is designed to give your amplifier the maximum drive and early break up. This is really for the people that really want every ounce of gain. Designed to provide more treble clarity and top end punch when using high gain settings enabling you to get the best out of your amplifier.

The Harma 7025 Cryo is a selected high gain valve that supplies a tight and deep controlled bottom end sound with excellent midrange punch. The top end is clear sound and it has a nice early harmonic crunch. This provides the right amount of top end focus and bottom end slam to satisfy the demands of the even the heaviest of sounds.

The Cryo treatment gives a permanent change to the valves performance. The additional benefits such as better clarity, larger and improved sound stage with increased definition under distortion
with more top end bite and less fizz when using modern high gain settings

This kit is for Marshall that use 5 ECC83/12AX7 In the pre amp section

The kit consists of 5 valves

4 Specially Selected Harma 7025 DR250 Cryo for V1 to V4
1 Specially Selected & Balanced Harma 7025 DR250 Cryo for V5

Please note that the kit is for the valves only

All Harma preamp valves are Dynamically Drive tested under real working condition have passed the following tests:

Gain (db) Drive Tested
Transconductance (gm) Drive Tested
Output Drive Tested
Noise 1 (signal to noise)
Noise 2 (Aural)
Microphonics Test 1(Ambient)
Microphonic Test 2 (Shock)
Cathode Test
Grid Leakage Test

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