I have an older powered home theater sub. Not sure how much longer the plate amp may last. It's old a/b class. Maybe 100 watts. I popped out the woofer to replace an LED on the front panel. While its out, I'd like to put a "pigtail" on the terminals on the woofer, which would connect to a set of binding posts I mount on the back of the cabinet. They would remain unconnected until I buy a newer more powerful class D amp that would remain outboard. I don't want to further modify the cabinet for a new plate amp (current plate amp is odd shaped). If I ever connect a new amp to those binding posts and the old plate amp is still connected to the same terminals on the woofer, but unplugged from the wall AC and power switch off, it wouldn't actually be in the circuit, correct? This arrangement would also allow me to test out the performance of a newer amp prior to the built-in amp actually dying. Thanks!
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Sorry, it would indeed be in the circuit. Unless there's a disconnect relay, the output transistors would be in circuit. Better to wait for the need, and then actually disconnect the driver from the plate amp and run your posts.
Hi,
Certainly a very bad idea when the old plate amplifier stops working.
Very dubious at best with it in full working order, simply don't do it.
There is no reason to presume the sub amp will pop its clogs any
time soon unless your abusing it, and the driver is at most risk.
More power won't help much if driver and amplifier are well matched.
It actually will be worse if the sub amplifier contains decent dynamic
overload protection ideally suited to the driver, typical for AV stuff.
The end result could be a new amplifier and one dead driver.
rgds, sreten.
What model is it ?
Certainly a very bad idea when the old plate amplifier stops working.
Very dubious at best with it in full working order, simply don't do it.
There is no reason to presume the sub amp will pop its clogs any
time soon unless your abusing it, and the driver is at most risk.
More power won't help much if driver and amplifier are well matched.
It actually will be worse if the sub amplifier contains decent dynamic
overload protection ideally suited to the driver, typical for AV stuff.
The end result could be a new amplifier and one dead driver.
rgds, sreten.
What model is it ?
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