Thanks for the thoughtful comments and suggestions. I did just acquire a used NAD 512 CD player here on Agon. It's a fairly low end unit but distinctly better detail, tight and fuller bass and less bright than the Yamaha CD hanger I already had in place.
A couple of other recent tweaks and a new accessory have also made a noticeable difference. At a discount home improvement I got two 12" square concrete patio stones that are about 1.5" thick and look like stone. Put one under each speaker on the hardwood floors (there is a thick oriental rug with pad in room but it does not extend to the area where the speakers sit. Bass response is tighter and deeper. The second tweak may be sen as snake oil by some but I swear the sound - especially with vinyl - is a bit more open and has clarified and even slightly deepened bass response over what it was... all from a new turntable mat. I have Technics SL-1400 (kissing cousin of the Sl-1200.) The stock mat is a thick rubber and many seem to feel that rubber mats - or at least this one - don't allow the sound to open up as much. A lot of research on different mat materials... synthetic plastic, metal, felt, cork etc. yield the overall impression that most folks here no difference between mats which I believe.) The one exception was deerskin. Nearly every thread I found that discussed deerskin/leather mats suggests that they have a positive impact on the sound. Only place I could find them for sale was a few UK vendors and prices were high. I bought a compass style circle cutter with cutting wheel for drywall - at a hardware store,) an X-Actoknife, a roll of self adhesive cork at a craft store, and a 1/4" hole punch and a scrap of soft grained leather at a leather supply shop (deerskin was too pricey for an experiment but I will now buy some based on my sing the rubber mat for size I scored two circles of cork, one of leather and carefully cut them out. One cork circle was then cut to remove a 4" circle of material in the center. That piece was the center of the "sandwich, the smoother side of the leather faces up and the third piece of cork on the bottom. Careful pressure and pounding with a soft rubber mallet got the layers adhered and the center 4" area of leather is slightly depressed due to the cutout under it (for the label depression.) Last steps were to punch the center spindle hole and trim the edges even. I played Side A of Steely Dan's Aja on the rubber mat and then on the new leather mat. There IS a difference and the leather mat yields better sound. I was surprised that I could hear it but am convinced that it isn't my imagination. Followed up later tonight with side B of the Sony Legacy 180 gram reissue of Axis Bold as Love and damn!
Last change... I got an $80 Spin-Clan manual record washer and built my own jerry-rigged vacuum system form and old portable vacuum. I can clean about 15 records in one hour and the results are astounding. Thrift store finds and even vinyl from my own remaining old collection (much of which is gone) sounds so much better. Surface noise that I attributed to worn records was just dirt embedded in the grooves. Great investment.
A couple of other recent tweaks and a new accessory have also made a noticeable difference. At a discount home improvement I got two 12" square concrete patio stones that are about 1.5" thick and look like stone. Put one under each speaker on the hardwood floors (there is a thick oriental rug with pad in room but it does not extend to the area where the speakers sit. Bass response is tighter and deeper. The second tweak may be sen as snake oil by some but I swear the sound - especially with vinyl - is a bit more open and has clarified and even slightly deepened bass response over what it was... all from a new turntable mat. I have Technics SL-1400 (kissing cousin of the Sl-1200.) The stock mat is a thick rubber and many seem to feel that rubber mats - or at least this one - don't allow the sound to open up as much. A lot of research on different mat materials... synthetic plastic, metal, felt, cork etc. yield the overall impression that most folks here no difference between mats which I believe.) The one exception was deerskin. Nearly every thread I found that discussed deerskin/leather mats suggests that they have a positive impact on the sound. Only place I could find them for sale was a few UK vendors and prices were high. I bought a compass style circle cutter with cutting wheel for drywall - at a hardware store,) an X-Actoknife, a roll of self adhesive cork at a craft store, and a 1/4" hole punch and a scrap of soft grained leather at a leather supply shop (deerskin was too pricey for an experiment but I will now buy some based on my sing the rubber mat for size I scored two circles of cork, one of leather and carefully cut them out. One cork circle was then cut to remove a 4" circle of material in the center. That piece was the center of the "sandwich, the smoother side of the leather faces up and the third piece of cork on the bottom. Careful pressure and pounding with a soft rubber mallet got the layers adhered and the center 4" area of leather is slightly depressed due to the cutout under it (for the label depression.) Last steps were to punch the center spindle hole and trim the edges even. I played Side A of Steely Dan's Aja on the rubber mat and then on the new leather mat. There IS a difference and the leather mat yields better sound. I was surprised that I could hear it but am convinced that it isn't my imagination. Followed up later tonight with side B of the Sony Legacy 180 gram reissue of Axis Bold as Love and damn!
Last change... I got an $80 Spin-Clan manual record washer and built my own jerry-rigged vacuum system form and old portable vacuum. I can clean about 15 records in one hour and the results are astounding. Thrift store finds and even vinyl from my own remaining old collection (much of which is gone) sounds so much better. Surface noise that I attributed to worn records was just dirt embedded in the grooves. Great investment.