8900 Keystone Crossing, Suite 1220 Indianapolis, Indiana 46240 1. 800 . KLIPSCH • www.klipsch.com Make sure you return your warranty card so that we may keep you up-to-date on new Klipsch products and promotions. As always, if you have any questions, contact your local authorized Klipsch dealer.
LF-10 and LF-12 Subwoofers Owner’s Manual & Warranty
CAUTION: RISK OF ELECTRIC SHOCK! DO NOT OPEN! ! CAUTION! To reduce the risk of electric shock and fire, do not remove the cover or back plate of this device. There are no user-serviceable parts inside. Refer repairs to a Klipsch authorized service center. AVIS: Risque de choc electricque, ne pas ouvrir. ! CAUTION! The international symbol of a lightning bolt inside a triangle is intended to caution you to uninsulated “dangerous voltage” within the device’s enclosure.
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Component Specifications LF-12 Type: Bass reflex enclosure via dual passive radiators Amplifier: Maximum Output Power-2000 watts FTC Rated Power-1000 watts into 7 ohms, 22-100Hz @ 1% THD Auto Power On: 2 second ON delay, 15 minute OFF delay Frequency Response: 16-100Hz ±3dB Maximum Acoustic Output: 123dB 1/8 space 1 meter Low Pass Crossover: Continuously variable from 40-120Hz, 36dB/octave slope above 120Hz.
15. Dangerous Entry. Care should be taken that no foreign objects or liquids fall or are spilled inside the device. 16. Damage Requiring Service. The device should be serviced by a Klipsch authorized service center when: -The plug or power supply cord has been damaged. -Objects have fallen or liquid spilled inside of the device. -The device has been exposed to moisture. -The device does not appear to be operating properly or exhibits a marked change in performance.
We Want Your Klipsch Product to Look and Sound as Good as When it Left the Factory. Please Check Promptly for Transit Damage. Each Klipsch product is individually tested for sonic quality and inspected for superior appearance before it leaves the Hope, Arkansas factory. Your loudspeaker left the factory in perfect condition in packaging carefully engineered to protect both the working parts and finish. However, in certain extreme circumstances, the products may be damaged in transit.
FIGURE A LF SERIES INPUT PANEL Main speakers full range • Line level connections shown at left, one channel shown, repeat for opposite channel • Speaker level connections shown at right, one channel shown, repeat for opposite channel • Optional LFE connection (— - - — - - — ) compatible with speaker or line level hookups FIGURE B LF SERIES INPUT PANEL Main speakers limited range • Line level connections shown at left, one channel shown, repeat for opposite channel • Speaker level connections shown at righ
MAIN SPEAKERS FULL RANGE Connect the subwoofer’s left and right channel “LINE IN” jacks to a non-filtered (full-range) main channel, pre-amp output on your receiver or pre-amp/processor. Refer to the lefthand side of Figure A. This signal contains the normal bass information present in the main left and right channels. When connecting to a component that has only a single pair of pre-amp outputs, “Y” adapters (splitters) may be used to feed a signal to both the subwoofer and the power amplifier.
LOW PASS (Hz) This control is a variable filter that controls the upper frequency limit of the subwoofer from 40 to 120Hz. Use this control to compensate for room acoustics, subwoofer placement, type of hookup and the capabilities of your main speakers. Proper adjustment of this control helps smooth the transition in the bass frequencies between your main speakers and the subwoofer.
Troubleshooting • If your subwoofer has little or no output: – Double-check your power (AC) and system connections. – Make sure that the “LEVEL” control is turned up. – Make sure that the power switch on the rear control panel is in the “ON” or “AUTO” position. – Check that the Power light on the rear control panel is lit. If it is not, check the AC fuse. When changing the AC main power fuse, unplug the power cord first.
Types of Connections Your subwoofer may be installed using either “SPEAKER LEVEL” or “LINE LEVEL” connections; both are not required. The LFE connection, however, is an optional line level connection that can be used in conjunction with either type of hookup. Refer to the “LFE/BYPASS IN” and “BASS MANAGEMENT” sections for more detail. You can connect the subwoofer so that your main speakers will reproduce a full range signal or a limited range (bass filtered) signal.
