Datasat RS20i provides SPL levels for each channel whilst LS10 does not indicate it in the manual. Interestingly, RS20i recommends L/R/C at 85 dB; SW/LS/RS/RSL/RSR at 82 dB. The Volume control at -15dB and running the pink noise on each channel, one by one.
Unfortunately LS10 manual does not indicate any recommended SPL setting for each channel.
L/R/C/SW1/SW2 at 75dB; LS/RS/RSL/RSR at 72 dB.
My guess for RS20i to suggest lowering the surrounds by 3dB is to compensate for the increase in 3dB when both side and rear surrounds are activated at the same time. Experience wise, indeed this suggested setting blend in very neatly without creating higher surround sound as compared to the front speakers. Other users may want to share your experience through experimenting.
For Datatsat Manufacturer:
Please provide update to the LS10 Manual and provide recommendation for the SPL setting for each channel. By the way, setting it at 85dB is well too loud. In most recommendation, 75 dB is more manageable.
Last edited by Gideon; 07-09-2014 at 10:00 PM.