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Summary of Contents for MAGNEPLANAR MG20.1
- Page 1 MAGNEPLANAR® MG20.1 Instruction Manual White Bear Lake, Minnesota www.magnepan.com...
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Page 2: General Description
The foil element in the ribbon tweeter is quite fragile. Handle them with extreme care when removing them from the carton. DO NOT remove the protective strip from the ribbon until the MG20.1 is fully assembled and the tweeters are installed. - Page 3 There are holes approximately 26 inches from the lower end of the panels for mounting these handles. The four support feet for the MG20.1 speakers are shipped in the separate accessory carton along with the eight mounting bolts. Two feet must be fastened to the back side of each of the panels.
- Page 4 B) Locate the four holes in the fabric along back side of the panel. C) Note that one section of the support feet is slightly longer than the other. Place the longer section toward the front of the speaker. D) Align the holes in the foot with the holes in the panel. Using your fingers, insert the bolts through the foot and into the panel until they engage nuts in the panel.
- Page 5 7. RIBBON TWEETER The foil element in your MG20.1 line source tweeter is only .00015" thick, and is very fragile. Handle with extreme care. PLEASE READ FUSING ON PAGE 5. To lessen the risk of damage, the ribbon tweeters are shipped separately.
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Page 6: Cable Hookup
8. FUSING Your MG20.1's have been shipped with 3 amp fuses installed for the tweeter, and 5 amp fuses for the midrange. The fuses are Type 3AG normal blow fuses, and should never be replaced with slow blow fuses. The maximum MIDRANGE fuse value shown on the speaker terminal plate is 5 amps. - Page 7 Repeat same procedure for the other channel. 11. BI-AMPLIFICATION The MG20.1 is conveniently arranged for hi-amplification. To hi-amplify, two stereo amplifiers (four channels of amplification) and an electronic crossover are required. For hi-amplifying with a conventional electronic crossover, connect the system as shown in Figure 2.
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Page 8: Speaker Placement
With the crossover points set as listed above, the power requirements for the bass and mid/treble amps are nearly the same. Therefore, use amplifiers of similar power rating. It is suggested to use amplifiers rated at 100 watts RMS or greater, into 8 ohms. -
Page 9: Stereo Width And Imaging
BASS RESPONSE lf you do not have access to a spectrum analyzer, play a record with a repetitive bass line (preferably an acoustical bass instrument). Try the speakers in several parts of the room. Start experimenting with the speakers about 3 feet from the back wall. -
Page 10: Maintenance
NOT VACUUM TWEETER CHANNEL! 16. SERVICE AND SHIPPING In the unlikely event you should need service for your MG20.1 loudspeakers, we recommend you return them through your dealer. He is experienced in providing service and can assist you if the speakers must be returned to the factory. -
Page 11: Tweeter Replacement
17. TWEETER REPLACEMENT Because the foil element in your MG20.1 line source tweeter is only .00015 inches thick, it is very fragile. Some users will never require a replacement tweeter. Failure will generally occur from mishandling, or from improper fusing. Users who frequently push the 3 amp tweeter fuse capacity will be the most likely to experience early failure. - Page 12 While this 5Hz or more of lower bass response is important, the most important factors in obtaining good bass response from the MG20.1 speakers are room size and geometry, wall material, and speaker placement.
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