“So you replied this receiver delivers 87 watts per channel in a 5.1 setup. So this receiver would not be sufficient to fully drive the Klipsch Cornwall IV speakers rated at 100 watts minimum?”
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Hi Bruce, Fear not - this receiver is more than well-equipped to drive your Cornwall IVs without fuss. I shall explain. Klipsch claim the Cornwall IVs can handle 100 watts continuously. That is quite different from the minimum wattage requirement rating, which they do not list. https://d2um2qdswy1tb0.cloudfront.net/product-specsheets/Cornwall-2019-Spec-Sheet-v03.pdf The reason they do not list this is in part down to the fact that the sensitivity rating of the Cornwall IVs is a jaw-dropping 102 dB. This means your speakers require only 2-5 watts (depending on the source being used and the information it is delivering) to go very loud. Loud enough to do eventual permanent hearing damage. A sound pressure level of 96 dB is where the risk of permanent hearing damage can be expected. Klipsch are famous for manufacturing speakers which are very sensitive. This is why speakers such as your Cornwalls are so popular with people who have expensive low-wattage (usually less than 15 watts/channel) single-ended 300B tube amplifiers. Of course this begs the question 'Why would they talk about 100 watts if these speakers only need a few watts to cause eventual hearing issues?' That depends on where they are being used. Your Cornwall IVs are very large with a wide dispersion. This means they can be used in very large, stately rooms, and even in large halls.
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