Audio Components in East Massapequa, New York

I've got bunch of audio pieces, in need of repair; some minor,
some more significant.
I'm looking for someone who can buy them for repair. And I'm not expecting big bucks, just reasonable offers, for all or some.
They are:
Denon AVC-3030 5.1 amp
Yamaha DSP-A1000 5.1 amp
Onkyo changer R1