User manual MIRAGE SPEAKERS 90IS

[. . . ] It is important to note however, that building structure, dimensions and furnishings all play a part in the quality of sound you will ultimately achieve. Where possible the following should be taken into consideration when placing Mirage speakers in your listening room: 1. Low frequency performance (below 100 Hz) can be affected by the structure of the room. [. . . ] Experiment with toe-in/toe-out positioning of your speakers until best results are achieved. Spiked feet are recommended for stability on carpeted floors. The loudspeakers should be placed 2 to 3 meters (6" to 10") apart and approximately 1/2 meter from the wall behind the speaker. The distance from loudspeakers to listener should be about 1 to 1. 5 times the distance separating the speakers (see figure 1). Selection of Proper Wire We recommend the use of high quality speaker cable. The speaker cable you select will ideally be fitted with high quality connectors with either 5/16" spade lugs or dual banana plugs. In most installations, ordinary lamp cord (16-18 gauge) has enough resistance to degrade the signal between amplifier and speakers, particularly in lengths over 3 meters (10'). If possible the speaker cables should be the same length for both channels and the shorter they are, the better the sonic performance will be. * When connecting your speakers to your sound system, turn off your amplifier to avoid damage which could result from shorting of the speaker leads. Amplifier Requirements Mirage loudspeakers have been designed to be driven to high listening levels with moderate power, while at the same time being capable of handling the power output of large amplifiers. NOTE: Mirage 90is Series speakers are 8 ohms nominal and will function well with quality amplifiers. 3 Mir90isrev. QXD 10/28/02 12:00 PM Page 5 90is series Amplifier to Loudspeaker Connection owners manual 1) Conventional Hook-up Connect speaker wire from the positive (Red +) terminal on your amplifier to positive (Red +) terminal on your Mirage speaker. Connect negative (Black ­) terminal on your amplifier to negative (Black ­) terminal on your Mirage speaker. (see figure 2) 2) Bi-Wire Hook-up Remove shorting straps. Use two dual conductor cables; one cable for low frequencies and one cable for high frequencies. Separate connections are made between the power amplifier to the low frequencies binding posts on the speaker and from the power amplifier to the high frequency binding posts. This allows you to choose separate wires that are best suited for the low or high frequencies. (see figure 3) 3) Combination Bi-Amp/Bi-Wire Hook up This method uses separate amplifiers for the low frequency section and high frequency section of the speaker. This dramatically improves musicality. The amplifier's gains and the phase relationship of the amplifier's input to output must be identical. (see figure 4) 4 Mir90isrev. QXD 10/28/02 12:00 PM Page 6 owners manual 90is series 5 Mir90isrev. QXD COMBINATION BI-AMP / BI-WIRE HOOK-UP (FIGURE 4) (MODELS 290is, 390is, 490is) (THIS METHOD USES TWO IDENTICAL, TWO CHANNEL AMPLIFIERS FOR IMPROVED PERFORMANCE) 90is series 10/28/02 12:00 PM LEFT SPEAKER IMPORTANT: REMOVE GOLD SHORTING BARS, WHICH HAVE BEEN FACTORY INSTALLED BETWEEN BOTH RED INPUT TERMINALS AND BOTH BLACK INPUT TERMINALS. RIGHT SPEAKER Page 7 6 owners TWO CHANNEL AMPLFIER (1) CONNECT TO THE LEFT CHANNEL OUTPUT OF YOUR PRE-AMPLIFIER TWO CHANNEL AMPLFIER (2) CONNECT TO THE LEFT CHANNEL OUTPUT OF YOUR PRE-AMPLIFIER manual Mir90isrev. QXD 10/28/02 12:00 PM Page 8 owners manual 90is series Care of Finish Your Mirage speakers are attractively finished and should be gently wiped clean, from time to time, with a damp cloth to remove any dust or stains. Distortion Causes Speaker Damage When an amplifier is "overdriven" it produces distorted output power several times greater than its rated power. All amplifiers produce high levels of distortion when they are driven beyond their rated power output and this distortion can damage any speaker. Overdriven amplifier distortion is called "Clipping". Clipping can be identified by a fuzzy or distorted sound. If this is heard, lower the volume immediately to avoid damage to your system. If louder volumes are desired, the only practical solution is to obtain an amplifier capable of more clean (undistorted) output power. 7 Mir90isrev. QXD 10/28/02 12:00 PM Page 9 90is series owners manual SPECIFICATIONS 90is SYSTEM TYPE High performance Front radiating 2 way design. [. . . ] AMP POWER MAX POWER HANDLING DIMENSIONS HxWxD 42Hz - 22KHz 42Hz - 22KHz 35Hz 89dB 86dB @ 2. 83 V /1M 1. 8KHz 351Hz 89dB 86dB @ 2. 83 V /1M 1. 8KHz 8 Ohms 15-125 watts RMS 8 Ohms 15-125 watts RMS 125 watts RMS 125 watts RMS (po) (cm) 33-7/8 x 8-1/2 x 10-1/2 85. 4 x 21. 6 x 26. 7 30 lbs. (11. 85kg) Black Ash Vinyl Veneer Rosewood Black 35-3/4 x 7-5/8 x 9-3/8 90. 8 x 19. 4 x 23. 8 35 lbs. (13. 78kg) Black High Gloss WEIGHT FNISH GRILLE COLOUR Black DESCRIPTIONS AND SPECIFICATIONS SUBJECT TO CHANGE WITHOUT NOTICE. 9 Mir90isrev. QXD 10/28/02 12:00 PM Page 11 90is series owners manual LIMITED WARRANTY POLICY Warranty in the United States and Canada Mirage warrants this product to the retail purchaser against any failure resulting from original manufacturing defects in workmanship or materials. The warranty is in effect for a period of five (5) years from date of purchase from an authorized Mirage dealer and is valid only if the original dated bill of sale is presented when service is required. [. . . ]