troubleshooting

Hello, i got my hands on an Harman Kardon AVR 158 and wanted some help with troubleshooting it. Few years ago it was working perfectly and now it doesn't: - When plugged to power the led turns orange and after a few seconds it becomes white, turning on by itself; -The display and the led ring...

Hello, Speakers - Hivi Swans D1200 (No sub-out) -> connected to my amp ifi Zen Dac V2 via RCA -> Connected to my PC My speakers have 2 line, 1 coaxial and 1 optical inputs ifi zen dac v2 has 1 line input I want to buy a subwoofer but I don't know how to connect a subwoofer without a sub-out...

I haven't used my speakers for a year and when I turned them on again I got this high-pitched noise, irregardless of the volume. Sample here: https://vocaroo.com/11CAt5RpqVfv Any idea what's wrong and can it be fixed? It's quiet annoying and I can't really even listen to the TV with this...

Hello, I recently bought a Yamaha A-S801 amplifier. This unit seems to be in protection mode. When I turn it on, the yellow power lamp starts to blink within 5 seconds and the unit can't be used. I can't seem to get this working. Any tips on how I can reset it or get it to power up again...

Hi I have a problem with my subwoofer. It happened suddenly. I have a Bowers & Wilkins ASW608 woofer and Yamaha A-S501. I've been using this system for over 4 years now. There are 2 pairs of speakers attached to the system too - one pair of MA BX2 and a pair of Opera 1.5 The problem with the...