Install ation Guide Pro1770LCR ■ Pro2770LCR ■ Pro1870LCR ■ Pro2870LCR P r o f e s s i o n a l Q u a l i t y, C o m p a c t, Left/Center/Right Channel Loudspeaker
CONGRATULATIONS! Thank you for choosing a superior StageFront Home Theater Solutions™ Cabinet LCR loudspeaker from Niles. With proper installation and operation, you should enjoy years of trouble-free use. Niles manufactures the industry’s most complete line of custom installation components and accessories for audio/video systems. To see the complete Niles product assortment, visit us on the Internet at: www.nilesaudio.
INTRODUCTION The StageFront Home Theater Solutions Loudspeakers are expressly designed for superior sonic quality in home theater applications. Each model employs advanced technology components that extract the subtle nuances in recorded music or the thunderous action sound in a movie. Models ending in “LCR” are intended primarily for front channel left/center/right placement or wherever a monopole design is required. Models that end in “FX” are designed for special effect placement.
FEATURES AND BENEFITS INTERLACED CARBON-FIBER WOOFERS WITH BUTYL RUBBER SURROUNDS Provide increased sound pressure levels and dynamic theater quality sound at sustained high-power output FLUID-COOLED TETERON™ DOME MIDRANGE* *Pro1770LCR & Pro2770LCR models only Produces smooth detailed dialog FLUID-COOLED CARBON CONE MIDRANGE* *Pro1870LCR & Pro2870LCR models only Delivers sustained high output levels and smooth detailed dialog FLUID-COOLED TETERON™ DOME TWEETERS Deliver ultra-wide dispersion and silky-smo
INSTALLATION CONSIDERATIONS RECOMMENDED AMPLIFIER POWER For satisfactory performance, we recommend using a surround amplifier with a power rating of 20-150 watts for the Pro1770LCR and Pro2770LCR. We recommend an amplifier power rating of 20-200 watts for the Pro1870LCR and Pro2870LCR. Most loudspeakers are not damaged by large amplifiers, but rather by small amplifiers. If your system is playing at high levels, a small amplifier will run out of power very quickly and can create damaging “clipping” distortions.
LOUDSPEAKER PLACEMENT NOTE: STAGEFRONT LCR LOUDSPEAKERS ARE DESIGNED FOR USE IN FRONT LEFT, CENTER OR RIGHT-CHANNEL APPLICATIONS. FOR EFFECT CHANNEL APPLICATIONS, WE RECOMMEND USING A STAGEFRONT FX LOUDSPEAKER. PLACING THE STAGEFRONT LCR AS THE FRONT LEFT AND RIGHT LOUDSPEAKERS In a home theater, the intelligibility of dialog and action reproduced by the front speakers is paramount! The position of each loudspeaker plays a very important role in how clear the sound is and how a stereo image is created.
As for placement height, place front left and right loudspeakers on either side of the picture source so that their tweeters are not more than 24 inches above or below the center-channel loudspeaker’s tweeter (see Figure 2 on page 6). NOTE: DO NOT PLACE ANY STAGEFRONT LCR OR FX LOUDSPEAKER TOO CLOSE TO A DIRECT-VIEW TV MONITOR, AS IT MAY CAUSE PICTURE DISCOLORATION. IN GENERAL, TRY TO KEEP IT AT LEAST 24 INCHES AWAY FROM THE TV.
LOUDSPEAKER PLACEMENT (CONTINUED) Pro1770LCR (Optional Placement Above TV) Pod rotated (tweeter up) Not Greater than 24" Pro1770LCR Pro1770LCR Not Greater than 24" Pod rotated (tweeter up) Pro1770LCR Figure 2. Placing the Stagefront LCR as the center channel loudspeaker above or below a TV. ■ For installations where a perforated projection screen will be used, place the loudspeaker, either horizontally or vertically, behind the screen at ear level, as shown in Figure 3.
FINISHING THE INSTALLATION CONNECTING THE LOUDSPEAKER 1. The terminals on your loudspeaker support Bi-amp or Bi-wire connections as well as standard connections. Please choose your preferred method as described below in Figure 5 on page 8. 2. At each loudspeaker, route the wire to the input connectors, then separate the loudspeaker wire so that at least 2 inches of each conductor are free. Strip away 1/4 inch of insulation from each loudspeaker wire.
FINISHING THE INSTALLATION (CONTINUED) Figure 5. Bi-Wire connection Si275 Amp Straps Removed Pro2870 LCR Pro2870 LCR Surround Receiver Si275 Amp1 Figure 6. Bi-Amp connection Si275 Amp2 Straps Removed Pro2870 LCR Pro2870 LCR CHECKING LOUDSPEAKER PHASE Speaker wire has two conductors. On both your loudspeaker and amplifier, one conductor is attached to the negative (–) terminals, while the other is attached to the positive (+) terminals.
works against each other, and the sound of the two playing together will be lacking in bass and sound “phasey.” If you suspect the sound is not right, and you cannot see any markings on the wire, try this simple test: 1. Stand halfway between the loudspeakers. 2. Play some music with the amplifier or radio set to Mono. 3. Listen to the richness of the bass and the loudness of the sound. 4. Turn off the amplifier and reverse the connections on one amplifier channel only. 5.
FINISHING THE INSTALLATION (CONTINUED) The StageFront Pro1870LCR and Pro2870LCR models feature Boundary Compensation and Pod Level controls in addition to those for Treble and Midrange levels. These controls are also on the front for acoustic fine-tuning after placement, as shown in Figure 8.
SPECIFICATIONS Pro1770LCR Pro1870LCR Recommended Amplifier Power Recommended Amplifier Power 20-150 watts per channel 20-200 watts per channel Nominal Impedance Nominal Impedance 6 ohm nominal; 3.2 ohm minimum 6 ohm nominal; 3.2 ohm minimum Frequency Response Frequency Response 70Hz to 20kHz, +/- 3 dB 60Hz to 20kHz, +/- 3 dB Sensitivity Sensitivity 88 dB with 2.83 V pink noise input measured at 1 meter on axis 90 dB with 2.
LIMITED WARRANTY NILES AUDIO CORPORATION (“NILES”) WARRANTS ITS PASSIVE LOUDSPEAKER PRODUCTS (THOSE NOT REQUIRING AC OR BATTERY POWER) TO THE ORIGINAL PURCHASER TO BE FREE OF MANUFACTURING DEFECTS IN MATERIAL AND WORKMANSHIP FOR A PERIOD OF FIVE YEARS FROM DATE OF PURCHASE. THIS WARRANTY IS SUBJECT TO THE FOLLOWING ADDITIONAL CONDITIONS AND LIMITATIONS.
DETACH HERE AND RETURN TO: NILES AUDIO CORPORATION WARRANTY REGISTRATION DEPT. P.O.
NILES AUDIO CORPORATION 12331 SW 130 Street, Miami, FL 33186 1-800-BUY-HIFI – www.nilesaudio.com ©2006 Niles Audio Corporation. All Rights Reserved. Niles and the Niles logo are registered trademarks of Niles Audio Corporation. Stagefront Home Theater Solutions is a trademark of Niles Audio Corporation. All other trademarks are the property of their respective owners.
