10:46

Yamaha M-85 Power Amp Repair Part 1 - Troubleshooting

12:02

Sansui AU-D707 Amp Repair and Adjustments

38:01

Harman Kardon PM655 Checkout & Repair

27:04

Yamaha M-80 Amplifier- Vintage Audio Review Episode #33

19:39

Yamaha P-2200 tune-up

7:56

Yamaha M-45 - Canal direito queimado.

13:11

Yamaha M-85

8:18

The replacement of my beloved 4 Yamaha M-70's with 4 new Yamaha Amps 2 M-80's 1 M-85 and 1 MX-1000.