please elaborate. how does it affect the timbre?
The way BBE explains it is that it alligns your high and low frequencies so that they hit your speakers together, adding tightness and punch.
I do believe that the low contour and process knobs (lows/highs) do add a bump at certain frequencies, but I'm not sure without researching it.
They also state that it will make your rig sound like a blanket was removed from in front of the speakers.
To me, that statement is true. Once installed in the rig, and with the knobs simply placed at noon, you can really hear a difference when you engage/remove the process. Makes the sound tighter, restores harmonic content, and overall clarity.
Sonic Maximizers are the type of gear that is either loved or hated, not alot of in the middle.
ETA - looked up the specs on the 882i - it states that it boosts at 5kHz, and at 50Hz. Not sure if it is the same for all models.
Also - copied this from the BBE website:
"The 482i Sonic Maximizer restores an audio signals natural brilliance and clarity by the use of two primary functions. First it adjusts a signal’s phase relationships between it’s low, mid and high frequencies while progressively adding longer delay times to lower frequencies, this creates a kind of “mirror curve created by the speaker neutralizing its phase distortion. Secondly the Sonic Maximizer augments higher and lower frequencies; loudspeakers tend to be less efficient in their extreme treble and bass ranges. The end result is a dynamic program-driven restoration without the ear fatigue that is normally experienced with the use of equalizers or exciters"