Definitive Technology ProSub 800 Owner's Manual
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Definitive Technology ProSub 800 Owner's Manual

Powerfield subwoofer with active crossover & power amplifier
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DePnitiveTech11fJlngy®
The Leader in High-Performance Loudspeakers®
ProSub 800/1000
PowerField® Subwoofer with
Active Crossover & Power Amplifier
Owner's Manual
,
Congratulations
Congratulations on your purchase of a Definitive Technology ProSub
Subwoofer. This revolutionary subwoofer utilizes state-of-the-art components,
a non-resonant monocoque cabinet and low diffraction construction in order to
achieve the most lifelike sound possible in your listening room for many years
to come. The ProSub is a compact, high quality powered speaker system
intended primarily for use as a subwoofer in superior quality music or home
theater systems. .
This ProSub powered subwoofer incorporates a high current power
amplifier, electronic crossover and precise equalization in order to achieve the
highest possible level of low frequency performance. The amplifier and elec-
tronic crossover are completely self-contained modules which are housed in
the subwoofer. The ProSubs incorporate Definitive's proprietary PowerField®
technology, by which the amplifier is specifically engineered in conjunction
with the driver for optimum load matching and power transfer characteristics.'
The integrated electronic crossover incorporates high level inputs and outputs
as well as a low level LFE input, precise equalization, continuously variable
low pass filter (between 40 and 150 Hz), fixed speaker level high pass filter
(to match the ProMonitors) and a precision volume control. The tremendous
built-in flexibility allows easy, seamless integration with all main speaker
systems and optimum performance in any room. The crossover incorporates
circuitry which allows for exceptional performance as either a single
subwoofer or when two subwoofers are used.
Our engineers have spent many years in developing this product. To ensure
that you only experience the finest performance possible from your subwoofer,
we encourage you to take a moment with this owner's manual and familiarize
yourself with the proper installation and setup procedures for your subwoofer.

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Summary of Contents for Definitive Technology ProSub 800

  • Page 1 Active Crossover & Power Amplifier Owner's Manual Congratulations Congratulations on your purchase of a Definitive Technology ProSub Subwoofer. This revolutionary subwoofer utilizes state-of-the-art components, a non-resonant monocoque cabinet and low diffraction construction in order to achieve the most lifelike sound possible in your listening room for many years to come.

  • Page 2: Safety Precautions

    Safety Precautions 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. Please refer all servicing to· licensed service technicians. Avis: Risque de choc electricque, ne pas ouvrir. CAUTION! The international symbol of a lightning bolt inside a triangle is intended to alert the user to uninsulated "dangerous voltage"...

  • Page 3: Inputs/Outputs

    Inputs/Outputs Your Definitive Technology ProSub subwoofer operates from either high level (speaker-type) or low level LFE (RCA-type) outputs on your electronics. Use the low level jack when connecting the subwoofer to the LFE output jacks of a receiver, a preamp or a signal processor.

  • Page 4: Subwoofer Placement

    Subwoofer Placement Your Definitive Technology subwoofer has been designed to operate at frequencies generally below 150 Hz. Because low-frequency information in this range essentially is non-directional, your subwoofer can be located anywhere in your listening room that is most convenient. Also, the con- tinuously variable low pass filter operates at a very fast roll-off, ensuring great performance wherever you place your subwoofer.

  • Page 5: High Level Speaker Wire Connections

    High Level Speaker Wire Connections Your Definitive Technology ProSub subwoofer can also be hooked up via high level connections. In this situation, you have the option of running your main speakers "full range" or rolling off the low end by using the high pass filter built into the subwoofer.

  • Page 6: Advantages Of Multiple Subwoofers

    bass output when using full range main speakers, run the main speakers full range by hooking them up directly to the amp. In many systems, if your speakers are true full range systems, you may find that you get a more satisfying sound by running the speakers full-range and crossing your subwoofer in fairly low setting (40-70 Hz).

  • Page 7: Critical Bass Management Settings

    smoothes out the peaks and dips which result from the eigenmodes in your room. Two subwoofers couple much better to the air in your room (four times better) and of course offer double the power. In addition, some state-of-the-art home theater installations have begun to use a sepa- rate subwoofer hooked up to the rear (surround) channels and we recommend this for the absolute ultimate in performance.

  • Page 8: Powering Up Subwoofer

    Operating Controls Your Definitive Technology ProSub subwoofer is equipped with a full complement of operating controls to ensure complete flexibility and maxi- mum performance in any installation. Most of them basically are the "set and forget" type, although occasionally certain controls will require minor adjustments.
  • Page 9 current going to it, it will reactivate itself with a pop when AC current is restored, which is normal. Please note that after the cessation of a signal, it may take up to an hour for the amplifier to actually tum off from active to staildby mode. In some instances, because of RF presence in your area, the red LEDs may not tum off.

  • Page 10: Troubleshooting

    6. If you cannot get your subwoofer to tum on or if no sound comes out and you're sure the system is set up properly, please bring the subwoofer to your Definitive Technology Authorized Dealer for assistance. Technical Assistance It is our pleasure to offer assistance if you have any questions regarding your ProSub or its set-up.

  • Page 11: Specifications

    Service Service and warranty work on your Definitive loudspeakers will normally be performed by your local Definitive Technology dealer. If, however, you wish to return the speaker to us, please contact us first, describing the problem and requesting authorization as well as the loca- tion of the nearest factory service center.
  • Page 12 In no event will Definitive Technology be liable to you for any incidental or consequential damages arising out of the use or inability to use the Product, even ifDefinitive Technology or a Definitive Technology Franchised Dealer has been advised of the possibility ofsuch damages, or for any claim by any other party.
  • Page 13 Internet access? Call Definitive Technology Customer Service M-F 9:30 AM - 6:30 PM US Eastern Standard Time at (410) 363-7148, and we'll help you with the simple registration process. Or you can send us a letter to Definitive Warranty Registration at the address below with your name, address, phone number, serial number(s) of the product(s) and a photocopy of your sales receipt or upload a scan as part of the on-line registration process.

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