Cheap tweaks...What would YOU reccomend?

Just one Jena Labs cryo-treated 20amp IEC connector on the amp end of my Foundation Research LC-2 in-line power conditioner provided fascinating improvements at both the micro- and macro-dynamic levels.

-IMO

I read some good things about various cd mats. Marigo Labs has just brought out a new version of their mat so I gave it a try.
I have been using it for a week and I am amazed that a $90 cd mat with some holes cut out in it (I have no technical expertise)can make such a huge difference in the quality of sound I am hearing.
I liked my system very much before the mat arrived. However, the improvements have been striking.The music has lost whatever edginess there was, the sound is richer,fuller and warmer, each instrument is better defined and more realistic. If I close my eyes I would say that jazz vocalists are in the room singing to me.

Build a sandbox for tour components.

Hi:

Move forward your listening seat.

Mine is a large upholstered sofa bearing on rear wall. There was in my listening room this consistent mid-bass "bump". Radio Shack SLM said +14 dBs around 100 Hz. Tried EQ, port plugging, speaker relocation on floor, new interconnects, lowering speakers close to floor, elevating speakers away from floor, moving speakers away from back wall, side walls, flushing my ears, cutting short my fingernails, eating cayenne pepper and many more things just don't recall.

BUT, when my listening seat was move forward just 5 INCHES !! the mid-bass hump disappeared. Couldn't believe it!!. Pulled back the seat against wall, hump returned. To this day have no explanation for this thing. But listening has been nice since then.

Enjoy!

PS Know no cheaper tweak.

Train you dog to turn the record to the other side. Only costs about a dozen treats.