D.
DAMPING
When the MMG C is placed close to a rear wall, the sound quality can
usually be improved with a damping material, such as a wall hanging,
behind the speaker.
6.
PROCESSOR SETTINGS
Set your receiver or processor on "small" speaker for the center channel, and "large" or
"full range" for the left/right speakers. (This does not apply if the MC1 or MMG W are
used as front left/right speakers.) Set the MMG C crossover point at 100Hz. Try higher
crossover points to achieve natural reproduction of male voice. Depending upon your
room conditions and the center channel placement, a different crossover point from
100Hz may be needed.
Even though you will probably be using a subwoofer, set your receiver or processor for
"no subwoofer." This may seem strange, but it is necessary for the proper integration
of the center channel bass. To drive your subwoofer, use a pre-amp output from the
front left/right of the processor or receiver. (It may be necessary to use Y adapters.)
How (and why) this setup works-normally, when "small" center speaker is specified,
the center channel bass is routed to the subwoofer. In reality, this doesn't work very
well, especially for Magneplanars. There is usually a frequency "hole" in the response
or the sonic integration is poor. When "no subwoofer" is specified, the processor
automatically routes the center channel bass to the front left/right "full range"
Magneplanars (because there is no alternative). The front left/right Magneplanars
provide the bass for the center channel speaker; and the integration is seamless,
having the same characteristics as the MMG C.
Since the signal from the front left/right pre-amp outputs is "full range," the subwoofer
receives all the bass information. The .1 channel (effects) is not needed. Adjust the
subwoofer crossover point so it does not overlap with the "full range" front left/right
Magneplanars.
7.
AMPLIFICATION
WARNING:
The MMG C is a 5 ohm speaker. Be certain the amplifier or receiver you
are using is capable of driving a 5 ohm load. If you are uncertain, call the manufacturer
of the amplifier.
