SETTING THE RECEIVER’S CROSSOVER FREQUENCY
When using the MP4512 with a subwoofer, the receiver’s internal crossover frequency should be set to a frequency between 100
and 200 Hz. The higher the crossover frequency, the greater the dynamic range and maximum output capability of the system.
If you have multiple choices, we recommend setting the crossover to 200 Hz or to the highest frequency available.
SETTING THE RECEIVER’S CHANNEL LEVELS
Note: These special instructions will differ from the instructions provided with your receiver. In order to take full advantage of the
MP4512’s capabilities, you need to follow these special instructions when setting channel levels.
Front Channels
For the Left, Center, and Right front channels, follow the receiver’s setup instructions. Because the MP4512 has identical speak-
ers for each of these channels, the receiver’s level setting for all three channels must be identical.
Tip: If you do not have a sound level meter, you can use a setting of 0 dB as a default. Make sure that the left, center, and right
front channels are all set to 0 dB.
Side (Surround) Channels
Do not use a sound level meter to set the levels for the Left Surround and Right Surround channels. Instead, the level for these
channels should be set so they are 4 to 6 dB higher than the level of the front channels. For example, if the left, center, and right front
channels are set to 0 dB, set the Left Surround channel to + 6 dB and the Right Surround channel to + 6 dB.
Special Note On Side Channel Speaker Phase & M&K’s Tripole
®
Surround Matrix
TM
Technology
For proper performance of the MP4512, be sure to wire the MP4512 (as shown) with all (+) terminals on your receiver going to all
(+) terminals on the speaker and all (-) terminals on the receiver to the proper (-) terminals on the MP4512.
While a normal surround installation with multiple speakers throughout the room should have all speakers in the same acoustic
phase, the MP4512 is designed to have one surround channel acoustically out-of-phase with all the other channels. This helps to pro-
duce the most effective surround soundfield.
If you conduct an acoustic phase test, though, please note the following:
The Side 1 speaker is acoustically out-of-phase with the other channels. If you conduct a phase test of your system, you will find
that this surround channel is out of phase with all of the other channels. This is correct; do not change the wiring to this channel so that
all channels are in phase.
SIDE 1
SIDE 2
FRONT 2
CENTER
FRONT 1
FIGURE 2
MP4512 pointing up
