I planned to use it under floating floor. data sheet say "ISO noise emission level at 500 Hz, “floating floor” " Ιi:40.5 dB. Thats nice, but what about under 500hz
http://www.index-spa.com/IndexSPACOM/do ... Duo_en.pdf this is short form, and here is the complete ,
http://www.index-spa.com/IndexSPACOM/TE ... df/256.pdf
Any comment