Fully tested on both A and B channels and with 4 speakers playing through both channels simultaneously.  Sounds as it should to me.  Not an Audiophile receiver but it sounds good with pretty decent bass if you turn the extra bass button on.  I hooked up Pandora and ran it through the Red and White Jack's using an adapter to a heapldphone jack.  Also played a tape deck through it and had no issues.  Made in March 1996 and in pretty good condition.  Has some wear and a couple little tiny white marks and maybe some slight dust.  Overall it looks fine and I see no real damage or issues.  I considered keeping it but have several and this one is pretty basic and easy to use and hook up and I decided to keep another unit with a crack on the face for mine instead.  Will be double boxed for shipping.  I will have some other audio equipment listed if your interested and if you message me my work deals on multiple item purchases.  The speakers in the one pic that I will list are Bose 141 ghat sound good as well if your interested and are 8ohms and 40W each so they match the receiver nicely if interested in those.