Magnepan MG 20.7 - Manual

Magneplanar 20.7 Instruction Manual
Quick Step-Up Instructions
The 20.7 has exceptional phase characteristics that are accomplished without the use of compensation networks. To
realize the optimum phasing, the 20.7 should be angled inward as shown in the diagrams below. (Do not place parallel to
the front wall.) Depending upon the acoustics of your room, the imaging and sound stage may be better with the tweeters
on the inside for listening only in the "sweet spot". For a larger audience or listening off to one side, tweeters on the outside
will keep the image centered for those listening off-axis.
Your 20.7s have been shipped with the tweeter jumpers removed.
You must install a resistor or jumper for the operation of the tweeters. Most listening rooms will have the smoothest
response when using the enclosed 1 ohm resistor for the tweeter. Rooms that are large and/or overly-damped may require
the enclosed jumper for smooth response.
Especially, during the break-in period, experiment with the 1 ohm resistors on the midrange. The addition of the midrange
resistor will provide a "warmer" balance.
TABLE OF CONTENTS
1. Introduction
2. General Description
3. Carton Contents
4. Packaging
5. Assembly
6. Tweeter Installation
7. Hookup
8. Caution
9. Speaker Placement
10. Bass Response
11. Stereo Width and Imaging
12. Left/Right
13. Phasing
14. Room Acoustics
15. Optional Tweeter Attenuation
16. Maintenance
17. Specifications
1.
Introduction
Congratulations on your purchase. The Magneplanar 20.7 loudspeaker was conceived and designed by
perfectionists, for perfectionists. Due to the elegant simplicity and ruggedness of the design, the Magneplanar 20.7
loudspeaker will give many years of trouble-free service.
2.
General Description
The 20.7 is a 3-way, full-range ribbon design with a quasi-ribbon bass and quasi-ribbon midrange, and true-ribbon
tweeter.