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The one good thing about the low gain stages SHOULD be durability. However due to it being FETs, that half-way goes out the window. FET's will take a lot of abuse on the Drain/Source, but the Gate is a different story. If that gate signal gets screwy, pop goes the mosfet. I only blew the 7530's up one time in my testing in 2010/2011, not sure what or how that happened. I wasn't driving with excess drive power, but I was using a little Blackcat JB75 (single 8417) amplifier as the driver, and may have had a problem with the tube or the DC blocking cap, or not. Been too long ago.

[QUOTE="443, post: 726954, member: 15034"] The one good thing about the low gain stages SHOULD be durability. However due to it being FETs, that half-way goes out the window. FET's will take a lot of abuse on the Drain/Source, but the Gate is a different story. If that gate signal gets screwy, pop goes the mosfet. I only blew the 7530's up one time in my testing in 2010/2011, not sure what or how that happened. I wasn't driving with excess drive power, but I was using a little Blackcat JB75 (single 8417) amplifier as the driver, and may have had a problem with the tube or the DC blocking cap, or not. Been too long ago. [/QUOTE]

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