Instruction d'utilisation Velodyne Acoustics VA-907.2

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"It delivered room-shaking bass and dramatically demonstrated the
effectiveness of a single subwoofer placed to one side of the room"
- Julian Hirsh
Stereo Review, January 1997
907.2
"If you want the absolute-deepest, most feel it-in-your-tushy BASS
under a grand, look no farther than the Velodyne . . ."
Owner's Manual
- Corey Greenberg
Home Theater, February 1995
Velodyne Acoustics, Inc.
1070 Commercial St. Suite #101
San Jose, CA 95112
408.436.7270 voice
408.436.7276 fax
Web Site: http//www

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CAUTION SPECIFICATIONS VA-907.2 RISK OF ELECTRIC SHOCK DO NOT OPEN Cabinet - including legs 14.5"x14.5"x14.5" (H,W,D) Caution Frequency Response 35 -120 Hz, +/- 3 dB To reduce the risk of electric shock, do not remove back panel. No user-serviceable parts inside. Refer servicing to qualified service personnel. High Pass Crossover Passive 85 Hz, 6dB/octave slope The lighting flash with arrowhead symbol is intended to alert the user to the presence of uninsulated Low Pass Crossover 40 - 120 Hz

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continuously without any problems. The unit is equipped with a signal sensing turn on/off that will automatically turn on the unit when a signal is present at the inputs and turn off the unit after Congratulations! several minutes when there is no longer any signal at the inputs. Congratulations on your purchase of a Velodyne VA-907.2 sub- If you plan to leave the VA-907.2 unused for an extended period of woofer system. This system represents the state of the art in time, we recommend that you t

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enced by placement, depending on the acoustic properties of the listening room. Typically, the optimum location for a subwoofer is tucked away in a corner of your listening room. This location will Installation usually offer the greatest output levels and optimum low frequency extension. The worst location for a subwoofer is typically far away Your new VA-907.2 subwoofer system provides for a number of from any walls, and close to the center of your room. Avoid these installation options. Read a

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Figure 2: Installation using speaker-level (from amplifier) inputs You should set the crossover frequency to obtain a smooth and seamless transition from the subwoofer to the main speakers in POWER your system. If your main speakers are smaller units with limited low LOW-PASS VOLUME CROSSOVER frequency output, you may wish to choose a higher frequency (such CAUTION! CAUTION! CAUTION! CAUTION! CAUTION! as 100-120 Hz) than you would with larger speakers which have greater low frequency output. Wit

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mance you should bypass the internal crossover in your Velodyne Line-level connection subwoofer, the Subwoofer Direct feature. Figure 1 shows connection to a pre-amplifier's main outputs and To bypass the crossover within the subwoofer, simply locate the returning them to your amplifier inputs. switch marked "out / in" on the back panel of the subwoofer and set to the "out" position. This will eliminate the internal crossover When installed in this fashion, your satellite speakers will be functi