I've owned a pair of upgraded double impacts for 2 years. (pencil gray color) Listen to just R&R, 69 YOA , in a shop area 20'x30 ' tractors, motor cycles etc, no special treatments, Peachtree amp 500, Benchmark LA4 Line amp, Their DAC3B, audio lab 6000 CDT, SVS 4000 sealed sub, stream Amazon HD. Listen at about 95spl, Def leopard, AC DC, Eagles, Rush , Pink Floyd, etc.
Everything is obviously subjective. I can only attest to R&R listening, WOW you feel like you are there. I don't know why my acoustics are that good, but they are. Just very impressed. Robert TN Dynamic, accurate!!!