iDSP INSTALL GUIDE
Boomy Region Compensation
The rst recommended type is a Boomy region compensation i.e. FIR affecting a most annoying room reections artifacts
from 70Hz and higher, and keep original subwoofer punch energy. A typical subwoofer always designed as a compromise
between box+speaker size and lowest audible frequency SPL (Sound Pressure Level) performance in a typical room.
The same room, which may produce ugly boomy coloration in the midbass, for sure doing serious SPL “amplication”
+5:15db within 20-40Hz. In terms of power, it’s a huge advantage, +10db equals to x10 watts - 500W vs 5000W! So we
believe it’s better to keep lowest frequencies as they are and linearize only midbass, boomy region to make the bass more
transparent, fast and well controlled. One more reason to put this type of correction to the rst position is microphone
tolerance. IOS devices use a modern MEMS mics with very good consistency of frequency response, especially higher
50-70Hz. So this is a practical approach, but for enthusiasts, we offer 3rd correction type i.e. entire range correction or
even go to “low level” Response/Compensation menu to get the control on a lot of parameters.
Please keep reading the app’s hints (!), which contains info about many, if not for all, functions.
Boomy region correction is complete.
Start Boomy region correction.
iDSP manual rev1 simon.indd 15 12/7/20 8:28 AM
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