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Magneplanar DWM Woofer Instruction Manual
Table of Contents
1. Introduction/General Description
2. Carton Contents
3. Packaging
4. Installation and Hookup
5. Placement
6. Phasing
7. Bass Attenuation
8. Service and Shipping
9. Specifications
Introduction/General Description
1.
The Magneplanar DWM is a dipole, thin-film planar/magnetic woofer which is a derivative of the MG 20.1 DiPlanar
woofer technology. The DWM can be driven simultaneously by 2 separate amplifiers (typically the front left and right
channels). A built-in crossover provides a high-pass output for use with "small" Magneplanars.
Carton Contents
2.
1 - DWM Loudspeaker with base
1 - Magnepan "Shaped" Pink Noise CD Test Disk
1 - Hex Wrench
2- 2 ohm, 25 watt resistors
1 - Speaker Logo
1 - Owner's Manual
Packaging
3.
Save all packaging. The DWM can be shipped safely only in the original packaging. Should you discard it,
packaging is available from Magnepan.
Installation and Hookup
4.
Install the base with the 2 screws. It may be necessary to realign the dowel nut in the speaker before installing the
base and screws.
Connect the speaker wire to the amplifier input on the DWM, obvserving polarity. Connect the "small" Magneplanar
to the output of the DWM, observing polarity.
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Summary of Contents for MAGNEPLANAR DWM
- Page 1 9. Specifications Introduction/General Description The Magneplanar DWM is a dipole, thin-film planar/magnetic woofer which is a derivative of the MG 20.1 DiPlanar woofer technology. The DWM can be driven simultaneously by 2 separate amplifiers (typically the front left and right channels).
- Page 2 Magneplanar. Minor adjustments from that position are often necessary for "fine tuning" as described under "Phasing" below. The DWM should be oriented so it is perpendicular to the side wall and playing down the length of the room as shown in Fig. 1 below.
- Page 3 "small" Magneplanar and changing the phase does not make a noticeable difference in the loudness of the pink noise peak. It may be necessary to move the DWM with respect to the Magneplanar to achieve a better acoustical in-phase condition.
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Page 4: Specifications
Bass Attenuation If it is necessary to reduce the output of the DWM, remove the Bass Attenuator jumper and insert a 25 watt (or higher wattage) resistor. Typically, 2 ohms is sufficient for most installations where bass reduction is needed. If a large amplifier and/or high power bass levels are used, four 2 ohm, 25 watt resistors can be used in a series/parallel combination that will provide a 100 watt rating at 2 ohms.
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