Disconnect you Cable (coax) and listen again and see if you system still hums... There are solutions for this... Line Conditions won't get rid of the ground hum.... Do a search for Ground Loops.
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My understanding is that ground loop produces a hum. Harshness of mid-range vocals, especially female vocals IS NOT A GROUND LOOP ISSUE, but one of audio equipment selection. A line conditioner is always a good idea. However, what you are describing sounds like the worst case scenario, digital glare combined with a solid state amp
i do know what a 60 cycle hum is, and understand the idea behind it. Once the ground is lifted from the amp, it diminishes by 95%. Even when the volume is up, you hear no apparent buzz. I'm just thinking it has to be contributory. Up until the past few months, I was using DIRECT TV, not Cable. Am now, I'll try undoing the ground on it as well now.
I'll try the "search". I suppose you mean to individually disconnect all the items using a ground in their path; washer, dryer, fridge, etc.,. right?
Maybe I'm pointing at a spot in the frequency range that is not altogether exact. A better term could be "it's like the treble is just up to high". Thought about it after reading the responses. In any case, it is persistent. Regarless of equipment, although I have not tried tubes. (Actually, can't afford tubes) Different receivers, amps, (yeah, all solid)AND AS THE QUALITY GOES UP AT FIRST THEY ARE GREAT, THEN AFTER A DAY OR SO. . . THE EDG/GLARE IS BACK. Changed SPEAKER CABLES, from Monster bi's to some I had made up, #10 AWG, that helped some. Been through the interconnects thing, cheap, to in my opinion, expensive, $100 each. Went with moderately priced XLR's to cheap XLR'S & bakc again. same old stuff, eventually.
After all the changes, I am hard pressed to believe it to be something other than what they all have in common. POWER. What works best? Unlplugging the equipment for a spell, overnight, or so. Or aftrer a good rain, and late in the evening. Those are the conditions wherein the sound is best. Being blind my friends tell me I hear too much, as at first they don't notice anything out of the ordinary. Once it is pointed out, they do. The only thing I have yet to try in interconnects, is coaxial. Using optics currently.
I really do appreciate your inputs and thank you for them, as well as any other suggestions or thoughtts that might arise.
RE BEFORE or AFTER MOVING?
BOTH. The new place is new, not different.
Same sources. Different preamp. Went from Sony strv 444ES TO aNTHEM PREAMP, avm 2. Just using the DAC in the preamp, but the same sources. Toshiba SD 3750 DVD, Sony 400 CD Player. I know they ain't the best, but I have run better just to see if I gained by stepping up a few levels. Items like, a Krell stereo preamp, and am about to get/borrow a friends high end Denon dvd player and see if that helps.
Usually, the same thing happens, right off it's good. With improvements in overall quality. thereafter, the hightened resolution begins to show up problems. but right off the bat, usually without exception, they're outstanding.
FROM the 602, 604, CDM1NT, 7NT,9NT, mONITOR aUDIO GOLD 60'S, *805, *804.
* MARKED IMPROVEMENT IN SMOOTHING THE OVERALL SOUND. if THINGS WORK OUT, GOING TO A PAIR OF 803, lEGACY'S. OR mCiNTOSH'S ls line.
Just which LC provides the best value and will work with amps, as well. I can ill afford to experiment with LC's. they are cost prohibitive, to do so.
NOTE: Did find the cable ground connection. Decided to run another ground, in lieu of using the service ground.
Trying to cure sibilance is not always an easy thing to do. As Fatparrot stated, adding a LC is always a good idea, but I agree with him that it's got more to do with the gear choice. I'd start with the source. Try a tubed output CD player, something like a Jolida or Ah! Njoe Tjoeb, which can be had used for not a lot of money.
super. 'preciate it.
The plan is to get either a Rega, sony, Marantz, or if used, possibly Meridian, either in CD or SACD, OR universal PLAYER. sO i'LL DEFINATELY BE MOVING UP IN THAT AREA, AFTER i GET MY MAIN SPEAKERS IN PLACE, AND A 5 CHANNEL AMP STRICKLY FOR HOME THEATER USE. (TO TAKE THE PLACE OF MY HT RECEIVER)
I'M LEANING TOWARDS THE UNIVERSAL ACTUALLY. NO GOOD REASON OTHER THAN MONEY. WOULD PREFER DVDA, AND CD SEPARATES, AS I CAN STILL SEE AND THAT KILLS TWO BIRDS WITH ONE STONE, IF I GO WITH DVDA.
IF ONLY I LOVED HOUSE WORK INSTEAD OF MUSIC! JUST HOW MUCH CAN SOAP, RAGS AND VACUUM CLEANERS COST? CERTAINLY LESS THAN A PAIR OF GOOD SUBS.