The Golden Tube Audio SE-40 is a world class performer. It was and is unmatched for its price range! The SE-40 was definitely the cherry in the GTA lineup. However, this unit notoriously suffers reliability issues. If you own a SE-40 which has performed flawlessly, you are in a minority.

We have re-engineered the SE-40. This kit was designed to address all the possible needs of your GTA SE-40. WARNING, If you are not an avid soldering hobbyist or require more instruction than those contained in your kit, leave the upgrade to Sonic Craft or your local repair technician! Sonic Craft offers installation, maintenance, and repairs for your SE-40. Labor is quoted on an individual basis.

NOTE - Before purchasing your kit, you must email us a detailed picture of the bottom side of your amp. This will allow us to email you the proper supplemental instructions for your particular amp. These kits are only applicable to the rev.2 & rev.3, however, those two designations cover 11 different circuit board situations (that we know of).

The SE40SCX2.5 is primarily focused on sonic improvement. This kit addresses everything covered by the SE40REL+2, but is not as budget minded. Sonicap Platinums, large Copper foil PS bypasses, Audio Grade Panasonics, larger PS caps, premium Polystyrene film and foil decoupler bypasses, Mills, Fairchild Stealths, and S102s help round out this kit. This 61 component kit includes the same installation accessories as the SE40REL+2. This kit will be offered for a limited time only due to the scarcity of some components (i.e. Platinums, etc...). When it is gone, it is gone.

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