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VMS User’s Manual

The Velodyne subwoofer is designed to operate using the full range audio signal for input when
using the built-in crossover. Many home theater processors/receivers (Dolby Digital

®

, DTS

®

,

THX™) have a “subwoofer out” jack that is internally filtered and designed to be used with a
powered subwoofer. In these installations, you may bypass the internal crossover in either the
processor or the Velodyne subwoofer. In some installations, it may be beneficial to have a
steeper ultimate crossover slope. To do this, you can use both your processor’s crossover and
the one internal to the Velodyne sub. You should stagger the frequencies, (i.e., 120 Hz sub,
80 Hz processor) for best results. 

To bypass the subwoofer’s internal crossover when the unit is being fed a low pass signal from
another crossover, simply locate the switch marked INTERNAL X-OVER/SUBWOOFER DIRECT
on the rear panel of the subwoofer and set to the SUBWOOFER DIRECT position. This will
eliminate the internal crossover from the signal path.

When installing your new Velodyne subwoofer using the line level connections, you should
always use shielded phono cables. There are  many high quality cables available today. It is
recommended that you keep the length of cable as short as possible to avoid any potential
noise problems. 

When using speaker level connections, use a high quality speaker cable that mates well with
the connectors. Be very careful to avoid any loose strands or frayed wires that may result in a
short, which may damage your equipment. Cables of extremely large size are typically not
required. Extremely large gauge wire may not properly fit in the binding posts, resulting in a
poor connection and possible short circuits. 

Subwoofer Outputs

Int erconnect Cables

Summary of Contents for VMS-8

Page 1: ...Subwoofer VMS 8 U S E R S M A N U A L Small High Performance Subwoofer...

Page 2: ...i w w w v e l o d y n e c o m VMS User s Manual...

Page 3: ...re for Installation 2 Installation 3 Line Level Connection Option A 4 Line Level Connection Option B 6 Speaker Level Connections 7 Subwoofer Outputs 8 Interconnnect Cables 8 Care of Your Subwoofer 9 P...

Page 4: ...to Installation Please unpack the system carefully This unit is heavy Use caution when lifting or moving to avoid injury Please save the carton and all packaging materials for future use Packing this...

Page 5: ...s typically far away from any walls and close to the center of your room Avoid these locations when possible When using a pair of Velodyne subwoofers in stereo it is preferable to place each subwoofer...

Page 6: ...and the Auto On Off feature may not operate properly Low pass Cr ossover 40 to 120 Hz All inputs sum the left and right channels together with the resulting signal passing through an adjustable low pa...

Page 7: ...e left unused for an extended period of time the master power switch should be turned off Subwoofer Outputs The Velodyne subwoofer is designed to operate using the full range audio signal for input wh...

Page 8: ...processor s subwoofer out or LFE the auto on off circuit sensitivity will be affected When one input channel is used instead of two the unit will see lower signal levels present at the inputs This ma...

Page 9: ...ed in this fashion your satellite speakers will be crossed over at 80 Hz which removes the lower bass frequencies from your external amplifier and speakers enabling them to do a better job reproducing...

Page 10: ...fier will not notice the additional load of the subwoofer due to the high input impedance Figure 3 Installation Using Speaker Level Inputs Caution To avoid damage to your main amplifier be sure to mai...

Page 11: ...fed a low pass signal from another crossover simply locate the switch marked INTERNAL X OVER SUBWOOFER DIRECT on the rear panel of the subwoofer and set to the SUBWOOFER DIRECT position This will elim...

Page 12: ...all outlet as dropping power line voltage will be most noticeable under strenuous conditions and may result in the unit shutting down intermittently Before seeking service for your amplifier or subwoo...

Page 13: ...imate Frequency Response 26 120 Hz 3 dB Harmonic Distortion 5 typical Magnet Structure 204 oz 12 7 lbs Voice Coil 2 5 Dual Layer inner outer wind Inputs Gold plated line level and speaker level Output...

Page 14: ...8R DEQ 10R DEQ 12R DEQ 15R DLS R Series DLS 3500R DLS 3750R DLS 4000R DLS 5000R Impact Series Impact Mini Impact 10 Impact 12 MicroVee MiniVee MiniVee 10 115 120V DD Series DD 10 DD 12 DD 15 DD 18 Dig...

Page 15: ...aused by accidents abuse misuse natural or personal disaster or unauthorized modification The VELODYNE products are not intended for professional or commercial use and VELODYNE is not responsible for...

Page 16: ...Acoustics Inc 345 Digital Drive Morgan Hill CA 95037 408 465 2800 voice 408 779 9227 fax 408 779 9208 service fax www velodyne com Service E mail service velodyne com Product E mail help velodyne com...

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