carpman
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- Jun 10, 2023
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I'm just trying to understand an effect on an amplifier (let's take as examples the recent Class-D, simple stereo amps like Fosi V3 or Aiyima A07) if you used a simple analogue source tone (same in each channel) into a stereo amplifier (RCA input) wired to two different (mismatched) passive speakers (i.e. L and R channel are feeding different speakers, firstly in terms of sensitivity then in terms of impedance):
1) Sensitivity (impedance = the same, say 8ohms):
a) LEFT channel speaker = 80dB (1w/1m)
b) RIGHT channel speaker = 90dB (1w/1m)
I'm assuming the amplifier will just supply the power equally and the right channel will sound louder and there will be no damage to the amplifier. Is that correct?
2) Impedance (sensitivity = the same, say 90dB (1w/1m)):
a) LEFT channel speaker = 8ohms (nominal impedance)
b) RIGHT channel speaker= 4ohms (nominal impedance)
I'm assuming this would damage the amplifier ???
Would it do anything else?
What would the effect be assuming all other variables outside those listed remained the same?
Any help and explanations would be very welcome -- just trying to understand how amplifiers are wired and would handle such situations.
Cheers,
C.
1) Sensitivity (impedance = the same, say 8ohms):
a) LEFT channel speaker = 80dB (1w/1m)
b) RIGHT channel speaker = 90dB (1w/1m)
I'm assuming the amplifier will just supply the power equally and the right channel will sound louder and there will be no damage to the amplifier. Is that correct?
2) Impedance (sensitivity = the same, say 90dB (1w/1m)):
a) LEFT channel speaker = 8ohms (nominal impedance)
b) RIGHT channel speaker= 4ohms (nominal impedance)
I'm assuming this would damage the amplifier ???
Would it do anything else?
What would the effect be assuming all other variables outside those listed remained the same?
Any help and explanations would be very welcome -- just trying to understand how amplifiers are wired and would handle such situations.
Cheers,
C.