I had generated some test tones and burned them on a CD running the full gambit from 20Hz ro 20KHz . I was curious to see my speakers bass response and room interaction so here are my findings.

From my seating position, using a 1KHz test tone, I chose a reference value of 74db at the seated locatin. Holding the Rat Shack meter within 6" of the ceiling, I measured 77db.

Frequency; Seated Postion (db); Ceiling (db)
100; 81; 81
90; 82; 81-82
80; 79; 79
70; 76; 78
60; 70; 75
50; 73; 75
40; 61; 64
30; 73; 74
20; 52; 52

The dip at 40 surpised me a little. I also have a rather nast y echo if I clap my hands in that room. Will acoustic treatments smooth out the bass response, particluairy at 40 Hz and will it remove the echo that I expereience when clapping my hands?