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General speaker questions for audio and home theater.

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RE: Speaker Impedance and low watt amp

Posted by 91derlust on March 16, 2017 at 01:51:01:
Okay, bear with me, I've been consuming some nice Barossa red, so this post might be typo-tastic...
Firstly, I can echo others' suggestions to just try both and see how you go. In short, either should satisfy your volume requirements.
What I'd like to advise is some rough figures to give you some confidence of exploring your path. If you listen at average 70db at the listening seat, you will - depending on music - at worst be hitting peaks of 90db or so... at the listening seat. You'll lose a couple of db due to distance, and gain a couple due to stereo and room gain. I reckon if - with your amp of choice - you can generate a 90db from a single speaker, you are in with a good chance. So, your amp can generate about 10(+)db (3db per doubling of power); added to your speaker that is 97db or so... I reckon you are good to go. You might lose or gain as much as 5db depending on your unique situation... but all seems fine.
I'd guess the 6 Ohm taps might best: lower distortion (and better damping) for a little less power, but your amps are already pretty low distortion, so?.. Ultimately, amps, speakers and rooms comprise a system, producing tunes that are interpreted by humans, with their funk and foibles. Either tap should work sufficiently for you - and may even give a touch of headroom - give both a crack!
Cheers,
91.