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MG III ; Magnepan: White Bear (ID = 1734914) Speaker-P MG III ; Magnepan: White Bear (ID = 1734915) Speaker-P
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MG III ; Magnepan: White Bear (ID = 1734914) Speaker-P
Magnepan: White Bear: MG III [Speaker-P] ID = 1734914 485x1593
Select picture or schematic to display from thumbnails on the right and click for download.
For model MG III, Magnepan: White Bear Lake
Country:  United States of America (USA)
Manufacturer / Brand:  Magnepan: White Bear Lake
Year: 1983/1984 Category: Loudspeaker, headphone or earphone
Wave bands - without
Power out
from Model: MG III - Magnepan: White Bear Lake
Material Wooden case
Dimensions (WHD) 23 x 72 x 2 inch / 584 x 1829 x 51 mm

These speakers sound different depending on if the listener is seated or standing.

These speakers were reviewed in the June 1984 issue of Hi-Fi News & Record Review.

Each speaker panel contains three drivers - a 620 square inch planar magnetic bass section, a 170 square inch planar magnetic mid-range section, and a 0.25 inch by 57 inch by 0.0001 inch thick ribbon tweeter.  The manufacture stated that the frequency response is +/- 4 dB from 37Hz to 40 kHz.  The minimum recommended power is 50 watts RMS (8-ohms rated), and the maximum recommended power is 200 watts RMS.  The sensitivity specifications are 1 watt RMS, 500 Hz, 85 dB @ 1 meter, and 1 watt RMS, 20,000 to 40,000 Hz pink noise, 83 dB @ 1 meter.  The impedance is purely resistive and is 4 ohms for the bass, and 3 ohms for the mid-range and tweeter.  The cross-over between the mid-range and tweeter is at 3,000 Hz and is non-defeatable.  Separate connections for the bass and mid-range & tweeter allow bi-amplified operaton.   The weight is for each panel.  


Net weight (2.2 lb = 1 kg) 52 lb (52 lb 0 oz) / 23.608 kg
Price in first year of sale 1'100.00 USD

Model page created by Stephen Masek. See "Data change" for further contributors.

All listed radios etc. from Magnepan: White Bear Lake
Here you find 9 models, 2 with images and 0 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.