User manual MAGNEPAN MG3.6-R

[. . . ] If you need to transport the speakers, they can be shipped safely only in the original packaging. You may never have to return your speakers, but should the occasion arise, they should not be shipped in any packaging but the original. Should you discard it, factory packaging is available, including special packaging for ribbon tweeters. 6. SPEAKER UNPACKING AND ASSEMBLY UNPACKING SPEAKER-DO not pull a speaker abruptly from the carton. Do not remove the tweeter protector strips until the speaker is completely assembled. [. . . ] If the tweeters are placed on the inside, the speaker angle should be as shown in Figure 4. BASS RESPONSE If you do not have access to a spectrum analyzer, play a record with a repetitive bass line (preferably an acoustical bass instrument). Start experimenting with the speakers about 3 feet from the back wall. Try moving the speakers forward or backward by increments of 6 to 12 inches at a time. One part of the room should be noticeably better than the rest, as should one distance from the rear wall as shown in Figure 5. Figure 5 STEREO WIDTH AND IMAGING Once you have located the best position for the speakers and your chair for good bass performance, separate the tweeters by 50% of the distance from your chair to the speakers. (For example, if your chair is 10 feet from the speakers, move the tweeters 5 feet apart. ) Now move the speaker apart in increments of 3 or 4 inches at a time, listening carefully at each position. At some point you will start to hear two separate speakers instead of getting a "stage effect" (or continuous image). If you have a hole-in-the-middle effect, your speakers are too far apart: begin moving the speakers closer together in small increments until you notice a point at which you achieve one cohesive "sound stage. " See Figure 3 or 4. A small tack or piece of tape can be attached to the carpet so the ideal spot can be easily relocated when the speakers (or chair) are moved for cleaning, etc. . The entire placement procedure may seem like a great deal of work, but is necessary in the setup of any high quality system. The time and effort expended should be necessary only once, but will repay the owner with countless hours of musical enjoyment. 9. ROOM ACOUSTICS Magneplanars, like other bipolar speakers, usually sound best with a moderately reflective surface behind the speakers. In situations where the speakers must be placed closer than 2 feet from the back wall, a heavy damping material directly behind the speakers is advised; however, it should not cover the entire wall. Damping material in other parts of the room is a matter of trial and error. 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 you make 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. An overdamped room will provide very precise imaging, but you will have a reduced sense of ambience (less reverberation, spaciousness). An underdamped room may heighten the illusion of being in a concert hall, but the imaging will seem imprecise with all the instruments mixed together. Moderation is the word. 10. OPTIONAL RIBBON TWEETER ATTENUATION There are two principal reasons for needing to attenuate the Magneplanar Ribbon Tweeter: A. Recordings, typically in the "pop" or "rock" vein, often exhibit a pronounced rise in the treble region. The Magneplanar 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 simple non-inductive resistor in series with the tweeter. There are inputs provided on the connector plate of each speaker for insertion of a resistor. [. . . ] All ribbon tweeters returned to the factory MUST be returned in the factory packing. 17. MG3. 6/R SPECIFICATIONS SYSTEM DESCRIPTION: 3-Way True Ribbon Tweeter, Planar-Magnetic Midrange and Bass with Bi-Amplification Option BASS SECTION: 500 Sq. Planar-Magnetic TWEETER SECTION: 5/32 Inch Width, 55 Inches Long FREQUENCY RESPONSE: **34Hz to 40kHz ±3dB POLAR RESPONSE - RIBBON DRIVER: 180° Horizontal dispersion both front and back to 20kHz RECOMMENDED POWER: 75 to 250 Watts RMS (8 Ohm rated). SENSITIVITY: 86dB, 500Hz, 2. 83Volts IMPEDANCE: Bass- 4. 7 Ohms Midrange/Ribbon Tweeter- 4. 2 Ohms Ribbon Tweeter- 3. 3 Ohms CROSSOVER: DIMENSIONS: WARRANTY: Crossover between bass and midrange is 200Hz Crossover between midrange and tweeter is 1700Hz 24'W X 71"H X 1-5/8"D Limited. Non-transferrable - Ribbon Foil Element - 1 Year Balance of Speaker - 3 Years SHIPPING WEIGHT: 145 Lbs. [. . . ]