I have not experimented with the E Mat magnetic side down, away from a component or panel breaker box.
However, I can confirm that I tried stacking one pair of E Mats under equipment and in the panel breaker boxes only (I couldn’t use the E Mat under or above my mono block amps). There was a subtle but noticeable improvement stacking them under my thin bottomed preamp/phono stage more so than doubling at the breaker box panel, the isolation transformer or the CD player. Doubling E Mats improved the sound in all locations though.
I am witholding full comment overall until I have a few days trial with the E Mats because I don’t want to sell them short. The 24 hour improvement was significant. The 1 hour improvement was very important because initially, despite the previously noted improvements in resolution, transient response, frequency extension, dynamics and pacing, there was a glary, bright upper mid-range and a subdued, reticent sounding lower mid-range when initially installed at six locations. I found a simple solution to eliminate the bright/subdued mid-range problem by moving my SR HFT 2.0 side wall speaker locations down 1/4", which brought superb balance back (down to warm, up to brighten).
Now, as I indicated, I need to give the E-Mats time because it is usually the mid-range that adjusts last and I may have to restore the SR HFT 2.0s back to the initial pre-E Mat installed positions (same with breaking in new cabling).
However, I can confirm that I tried stacking one pair of E Mats under equipment and in the panel breaker boxes only (I couldn’t use the E Mat under or above my mono block amps). There was a subtle but noticeable improvement stacking them under my thin bottomed preamp/phono stage more so than doubling at the breaker box panel, the isolation transformer or the CD player. Doubling E Mats improved the sound in all locations though.
I am witholding full comment overall until I have a few days trial with the E Mats because I don’t want to sell them short. The 24 hour improvement was significant. The 1 hour improvement was very important because initially, despite the previously noted improvements in resolution, transient response, frequency extension, dynamics and pacing, there was a glary, bright upper mid-range and a subdued, reticent sounding lower mid-range when initially installed at six locations. I found a simple solution to eliminate the bright/subdued mid-range problem by moving my SR HFT 2.0 side wall speaker locations down 1/4", which brought superb balance back (down to warm, up to brighten).
Now, as I indicated, I need to give the E-Mats time because it is usually the mid-range that adjusts last and I may have to restore the SR HFT 2.0s back to the initial pre-E Mat installed positions (same with breaking in new cabling).