Room Acoustics; Optional Tweeter Attenuation; Maintenance - MAGNEPLANAR .7 Instruction Manual

Room Acoustics

The judicious use of damping material can improve the sound. Acoustical
damping can be achieved with household items or wall hangings. A word of
caution--when audiophiles discover the effectiveness of damping material, they
sometimes overdo it (on the premise that if a little is good, more is better). Before
making a permanent change to your room, experiment with the positioning of
the damping material. Usually a portion of one or two parallel walls should have
some damping. However, it is a trial-and-error process.
An over-damped room will provide very precise imaging, but the sound will seem
"dead." An under-damped room may heighten the illusion of being in a concert
hall, but the imaging will seem imprecise with all the instruments mixed together.
"Hardness" or over-bright sound is usually the result of a room with hard surfaces
(glass, hard paneling,etc.). Moderation is the key.
Diffusers are also helpful to improve the acoustics of a room. Contact your
Magnepan dealer for more information on the proper use of diffusers.

Optional Tweeter Attenuation

There are two principal reasons for needing to attenuate the Magneplanar Quasi-
Ribbon Tweeter and Super Tweeter:
Pop or rock recordings often exhibit a pronounced rise in the treble region.
•
The Magneplanar Quasi Ribbon Tweeter is very efficient in its total energy
•
dispersion. If the surrounding walls are exceptionally reflective, the overall
perceived acoustical balance will be tipped towards a "hot" high end.
Attenuation is performed through insertion of a resistor in place of the jumper.
The pair of 1.2 ohm resistors will attenuate the tweeter 1-2 dB. Other values are
available from your Magneplanar dealer.

Maintenance

Light vacuuming of the grille cloth is possible.
Revised 2-10-19
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