NAD M17 Owner's Manual page 19

NEXT A TARGET CURVE MUST BE CHOSEN
Because loudspeaker designers assume that their products will be used in
typical domestic rooms, they are "voiced" to work in this environment. It is
assumed that the room will add some bass reinforcement and will absorb
some treble energy. Thus if we effectively "remove the walls" with room
correction, and set the speakers for flat response, you may find this sounds
too bright in the treble and too weak in the bass region.
NAD engineers have done extensive research in this area of room acoustics,
and along with Audyssey engineers developed what we believe is the ideal
'"in room" response curve. We include this NAD EQ, along with an Audyssey
developed EQ as the two best choices. The response curves shown below
typify NAD EQ room correction process.
Room Response measured by Audyssey microphone
Inverse Correction Filter calculated by NAD M17
Corrected Room Response
Flat EQ is a third option, but not one that we recommend for listening
(it is useful for verifying system performance when using external
instrumentation).
USING THE M17 – SETUP MENU
Select the Target Curve you find to be most satisfactory by pressing the
Audyssey key of the remote. The MultEQ XT corrected response can also be
bypassed if you wish.
It is recommended that you take full advantage of the M17's Audyssey Auto
Calibration feature for your speaker setup. However, if you desire to setup
your speakers manually or if you already had run Audyssey Auto Calibration
but would like to make adjustments, the following sections on Speaker
Configuration, Speaker Levels and Speaker Distance can also be followed
and implemented.
NOTE
During manual setting of your speakers, previously calibrated
Audyssey settings could be retrieved by re-adjusting back the altered
configurations as highlighted by an asterisk.
OPERATION
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