I’ve seen other threads on here warning about pairing 4ohm speakers with the 650. It’s currently being serviced and I have to replace the output Ic (SP-40w) that’s causing the protection relay to go off. I have a nice pair of ADS bookshelf speakers from the 70s that are labeled as “nominal 4ohm” that I’d like to keep using and technically the 650 is supposed to be fine with 4ohms. Any suggestions for a workaround? I don’t want to service it and have the same issue occur again
Pioneer SX-650 issues / Speaker pairing
- Thread starter lizjperl
- Start date
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Give it room to breathe. Make sure those vents aren't blocked. My sx-650 doesn't run very hot at all.
Those power packs are mounted to a large heatsink which should be plenty large enough for the task. Just make sure to use enough thermal paste where the entire pack is making good contact with the heatsink.
Just don't crank it so loud as to put into clipping. When it distorts at loud volume it's too loud.
I'm not a fan of power packs as they are hard to find and many are counterfeits.
Just don't crank it so loud as to put into clipping. When it distorts at loud volume it's too loud.
I'm not a fan of power packs as they are hard to find and many are counterfeits.
AmazingDavid
New Member
How to help keep your sound system healthy:
Keep your equipment clean and allow room for it to breath, top bottom and sides!
Keep your speaker wire runs only as long as needed (none extra coiled up laying around)
Use 12, 14, 16, or 18 ga speaker wire, none less.
Make certain there are no wire "cat" wiskers between speaker terminals (NEAT INSTALL), no extraw long bare leads in your hookups.
Inspect your runs and be cetain that there are no furniture nor nails cutting into your speaker wiring.
As stated above by use ONLY one set of four ohm speakers on your system at a time.
Keep the teens away from your stereo.
Keep the volume LOW!, 40 to 100 watts is not a lot of volume decibles in most bookshelfs speakers unless they contain horns and doubling the power to eighty watts only gives a baraly percievable amount of volume increasel (2x power = 3dB sound level increase).
Accept that the instrument is not immortal and has a life, and sometimes things just fail.
Keep your equipment clean and allow room for it to breath, top bottom and sides!
Keep your speaker wire runs only as long as needed (none extra coiled up laying around)
Use 12, 14, 16, or 18 ga speaker wire, none less.
Make certain there are no wire "cat" wiskers between speaker terminals (NEAT INSTALL), no extraw long bare leads in your hookups.
Inspect your runs and be cetain that there are no furniture nor nails cutting into your speaker wiring.
As stated above by use ONLY one set of four ohm speakers on your system at a time.
Keep the teens away from your stereo.
Keep the volume LOW!, 40 to 100 watts is not a lot of volume decibles in most bookshelfs speakers unless they contain horns and doubling the power to eighty watts only gives a baraly percievable amount of volume increasel (2x power = 3dB sound level increase).
Accept that the instrument is not immortal and has a life, and sometimes things just fail.