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Impedance Matching Confusion

My stereo amplifier has two sets of binding posts for each channel. The user manual says that it can drive a pair of 4 ohm speakers if only one set of the binding posts are being used. If I were to use both sets of binding posts, it can drive speakers that are between 8 ohm to 16 ohm. My speakers are rated at 4 ohm and they support bi-wiring. My question is that if I use both sets of the binding posts on my amplifier to bi-wire a pair of 4 ohm speakers, will it cause any issue/damage? Thanks.

My amplifier’s Power Output: 200 W + 200 W (8 Ω) 400 W + 400 W (4 Ω) / The speakers are rated at 4 ohm with 90db sensitivity.

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dancetofusion

Showing 1 response by erik_squires

erik_squires
16,673 posts
 

You’ll be fine since the impedance of the upper and lower section are separated by the internal crossover filters.

If you put 2 pairs of 4 Ohm speakers in parallel you end up with 2 Ohms, but if you bi-wire a single 4 Ohm speaker you still have 4 Ohms.

Whether you bi-wire or single wire a speaker the amplifier sees exactly the same load as before. You are just moving where the jumpers are. On the speaker or on the amp. Electrically identical situation.

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