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The 9530 FET is the only final made at this time that works/fits in those amplifiers. The previous final that was used was the discontinued 7530. There is nothing to swap or upgrade to.

These boards are pre-stamped and mass produced, there really is nothing to mess with or change. The style of amplifiers that you can fiddle with if someone wanted to try a design change or up-grade would be the X-Force, Fatboy, Davemade and so on comp style amp. These are all assembled on a large copper board and everything is hand soldered. That would be the "kit" of choice for what you are talking about.

[QUOTE="9C1Driver, post: 699534, member: 7716"] The 9530 FET is the only final made at this time that works/fits in those amplifiers. The previous final that was used was the discontinued 7530. There is nothing to swap or upgrade to. These boards are pre-stamped and mass produced, there really is nothing to mess with or change. The style of amplifiers that you can fiddle with if someone wanted to try a design change or up-grade would be the X-Force, Fatboy, Davemade and so on comp style amp. These are all assembled on a large copper board and everything is hand soldered. That would be the "kit" of choice for what you are talking about. [/QUOTE]

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