So not particularly relevant.
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Curious about subwoofer/low frequency "tightness"/musicality. What does it even mean? What do YOU look for?
olds1959special
Major Contributor
Maybe not, but the humming doesn't help the sound.
Humming is not acceptable and I must say when reading the belittling and denigration about your equipment humming I was dismayed art best. Hum is bad and is not acceptable.
olds1959special
Major Contributor
I agree and when I can I’m going to bring it to a better technician to look at it.
I have ~24 years of consumer electronics work experience. I have seen many techs that quote high and state all sorts of parts replaced and work done and they are incompetent. My own mother brought a old big analogue Sony receiver to a tech that I knew (Ed). I never suggested she do that and I would never have recommended him. He gave back a plastic bag of parts that he replaced all transistors. Like 7 of them. After I became a tech I took the Sony receiver to work and confirmed he did do solder work at those locations but the fault was still the exact same as before. He never did fix the issue. Anyway... The complaint was very intermittent cutting out of the audio... Totally cut out and never returned. So he decided it was transistors in the voltage amplifier sections of the receiver. It was the switches and pots needing a cleaning and lube job. I cleaned and lubed the switches and control and it was perfect after that. He charged my mother $90 in parts and $160 in labor. Be very careful.
Could be grounding/earth loop issues... nasty persnickety things to get rid of
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