Spl Measurement Graph - Mordaunt Short MEZZO 9 Installation Manual

C. Phase compensation filter
1. Enable all speakers in your system.
2. Load supplied set-up CD.
3. Sit in the listening position and play the last track on the CD (17).
You may want to put the track on repeat to give you enough time to
complete the phase set-up.
4. Turn on SPL meter on 1dB range.
5. Adjust the volume on your amplifier or receiver until the SPL REF led
is lit green.
6. Adjust the phase filter by steps until the maximum level measured by
the SPL meter is achieved.
7. Play some well known source material and continue to adjust the
phase filter for the best overall sound.

13. SPL measurement graph

18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
-1
-2
-3
-4
-5
-6
-7
-8
-9
-10
-11
-12
-13
-14
Frequency (Hz)
30
CD Track
2
32 34 36 38
Track Track Track Track
3 4 6
5
Use Your Ears
Following the setup procedure is only the first step in getting the most out
of your Mezzo 9 subwoofer. Listen to some well known source material.
Use the compare button on the remote control to listen to the sub with and
without the filters in place.
Note: Don't forget to save your settings in a preset once you are finished
so that you don't lose them when the power is turned off.
41 44 48 53
Track Track Track Track
7 8
9 10
58 64 71 80
Track Track Track Track
12 13
11 14
89 101
Track Track
15 16
13