parasound hca 800 for 2nd system....

For under $200 these seem like an ideal solution for a 2nd system...or the B&K st 140(?) any rate...any real negatives concerning the parasound?
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I'd go with the HCA1000A. MUCH better for only a smaller increase in $$$.
I have an HCA800 in my system, it is back in the chain amping the rear surrounds but it once was my main amp,,,no complaints snag it up!
ditto had 2 of these at one time worked ever where i put it great ,sub rears fronts .look on ebay they are one there cheap at times