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jhendrix
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Any advantage of integrated / power amp combo vs. integrated only?

Hi there,

I have 2 pairs of speakers that I need to connect to an amp. There aren't too many amps that handle the A/B switching that I require. One dealer has recommended connecting an integrated amp to one set of speakers, and connecting the second set to a power amp that is in turn connected to the Pre-Out of the integrated.

All else being equal, does this configuration result in better sound quality than connecting both pairs of speakers to an integrated that can handle the A/B switching?

Thanks very much.

ethanwiner
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Re: Any advantage of integrated / power amp combo vs. integrated


Quote:
All else being equal, does this configuration result in better sound quality than connecting both pairs of speakers to an integrated that can handle the A/B switching?


All else being equal, the only thing that matters with power amplifiers is their frequency response, noise, and distortion. It does not matter if each amplifier is encased in a separate chassis, or shares a power supply with a preamp and tuner, etc.

--Ethan

Elk
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Re: Any advantage of integrated / power amp combo vs. integrated

I think his question is aimed more at whether a single integrated can handle powering two sets of speakers or whether he should get another amp to assist the integrated.

Both setups can work fine. If the integrated does not have enough current delivery capacity to power both sets of speakers simultaneously you will have problems. This will depend on the particular integrated amp and the particular set of speakers.

The problem arises because the integrated amp will have its two pairs of speaker posts wired in parallel. Thus when the two speakers are active at the same time the total impedance drops a great deal, making it harder for the integrated to drive. If the speakers have a high enough impedance - or the integrated is beefy - this will not be a problem however.

jhendrix
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Re: Any advantage of integrated / power amp combo vs. integrated

Thank you both. Another configuration recommended is to get a second integrated (I have one already) and connect it to the tape out of the first, and connect the second set of speakers to the second amp. This will appparently give me independent volume control of the two amps.

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