B
Bob Engelhardt
- Jan 1, 1970
- 0
My step son & family have bought a second home and are furnishing it
with 2nd hand stuff. My neighbor donated a Sony receiver/surround sound
without speakers. I found speakers at our dump's "swap shop". Trouble
is the amp uses 3 ohm speakers and the ones that I found are 8 ohm.
The speakers will need 1.4 times the voltage to output the same power,
but levels are non-linear between the dial & the output, so I'm not sure
if I should expect the amp to have enough power (voltage). In other
words, if a level of "5" would be normal for 3 ohm speakers, would a
level of "10" be enough to drive 8 ohm ones?
Fidelity is not a big concern - this is for a TV system. But if
distortion is going to be major, I could match impedance by adding a 5
ohm resistor in parallel with each speaker. But then the power demand
on the amp would be that much greater.
I could use some advice.
Thanks,
Bob
with 2nd hand stuff. My neighbor donated a Sony receiver/surround sound
without speakers. I found speakers at our dump's "swap shop". Trouble
is the amp uses 3 ohm speakers and the ones that I found are 8 ohm.
The speakers will need 1.4 times the voltage to output the same power,
but levels are non-linear between the dial & the output, so I'm not sure
if I should expect the amp to have enough power (voltage). In other
words, if a level of "5" would be normal for 3 ohm speakers, would a
level of "10" be enough to drive 8 ohm ones?
Fidelity is not a big concern - this is for a TV system. But if
distortion is going to be major, I could match impedance by adding a 5
ohm resistor in parallel with each speaker. But then the power demand
on the amp would be that much greater.
I could use some advice.
Thanks,
Bob