Bought this piece of junk at a garage sale.
Sounds OK enough for what it is. Not using it with an iphone, I just wanted something better sounding than my laptops built in speakers on the front porch for the summer.
The problem: If the thing doesn't detect any sound for about 10 seconds, it goes into power management mode and cuts out the amp. If you're listening to music that has quiet sections you'll get chunks of audio cut out of the music while the amp turns back on!
Good grief, the idiot engineer who designed this! I hope he got his pink slip.
Maybe this winter I'll open it up and see if there's a way to disable this "feature".