If you want to play old tapes as opposed to recording new, be wary of budget and mid-range decks from mainstream Japanese manufacturers. I haven't tried the Yamaha KX580 but I've tried many, many decks over the years from the likes of Sony, Aiwa, Technics, Pioneer, Akai, at many price points, and the one trait that's all too common is that the budget/midrange models sounded great playing back their own recordings but all too often sounded absolutely lousy playing back tapes made on other machines, including musicassettes. Some people just blame azimuth differences but more often than not the problem is due to the playback equaliation (PB EQ) of the deck being - often purposefully - way off. Pre-recorded tapes sound dull and lifeless, which is exacerbated by Dolby NR. Some decks (including the Yamaha KX580) and many units from NAD had a play-trim feature which allowed the user to tweak the PB EQ ahead of the Dolby circuit, to inject a bit of life. Sounds like a great feature, but having never owned the KX580 or a NAD, I haven't tried it and I can't vouch for its effectiveness. I can however say with absolute certainty from personal experience that a Nak DR3's PB EQ is absolutely spot-on out the factory.