Model 19: 416z vs. GPA 416-8C

[Old Guy]

Oh duh...series resistor would cause the voltage drop. A parallel resistor would result in a current drop.

It still sucks the sound out of the speaker. I just had to do this with my 300Bs. There was a woofer pumping going on at high levels and we were trying to figure out why. So I strapped a 5W across the terminals, which stopped the pumping, but it sounded like crap. We ended up making some value changes to the output capacitor as well as removing it from the feedback loop. Problem solved. But I'm not getting any design cred.

My bad here.I read 16 ohm HF- those are more common. Resistive matching on woofs not so good.

OTOH if the xover was 8, the HF could be resistive matched and the LF allowed to work into an upward mismatch. There may be minor issues, but an upward mismatch is much more forgiving.

One good solution- get another pair of 416z and run the extra pair in boxes below the Valencias. WAF may suffer.