Definitive Technology ProSub 60 Owner's Manual

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Definitive Technology ProSub 60 Owner's Manual Manual pdf 8 page image

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 speak-ers full-range and crossing your subwoofer in fairly low (40-70 Hz). Onthe other hand, if you find that you are overdriving your main speakers,you will clearly be able to play your system louder by using the built-inhigh pass crossover for your main speakers.The Advantages of Multiple SubwoofersDefinitive’s ProSub 60 subwoofers are engineered to be used singly orin stereo pairs. With a single subwoofer, both left and right signals are sentto the subwoofer wherein they are combined via the electronic crossoverinto one composite signal. With stereo subwoofers, the left and right lowfrequency signals are reproduced by their own individual subwoofers. Theuse of one subwoofer achieves outstanding performance; however, theaddition of a second subwoofer (one for the left and one for the right chan-nel) clearly offers the highest level of performance achievable for bothmovies and music. The use of stereo subwoofers smoothes out the peaksand dips which result from the eigenmodes in your room. Two subwooferscouple much better to the air in your room (four times better) and ofcourse offer double the power. In addition, some state-of-the-art home the-ater installations have begun to use a separate subwoofer hooked up to therear (surround) channels and we recommend this for the absolute ultimatein performance. In addition, some state-of-the-art Dolby Digital* hometheater installations have begun to use a separate subwoofer hookedup to the rear (surround) channels and we recommend this for theabsolute ultimate in performance.Dual Subwoofer ConnectionsWhen hooking up a stereo pair of subwoofers, wiring is quite similar totraditional high level connections. Here, instead of running both speaker cablesfrom your receiver or amplifier to the left and right high level terminals on thesubwoofer, you will run the left channel to the left channel subwoofer and theright channel to the right channel subwoofer. Again, take care to make red tored (“+”) and black to black (“-”) terminal connections.Don’t worry that on your left subwoofer the right channel terminals willbe empty and that on the right channel subwoofer the left channel termi-nals will be empty—both channels are combined at the subwoofer’s inputstage. There is a possibility that with this type of wiring you may need toincrease your gain a little bit for proper balance.A dual subwoofer system using low level connections is equally sim-ple. From your receiver or preamp, run an RCA-type interconnect fromthe left channel main output to the left channel low level input on the sub-woofer you are using for the left channel. The process should then berepeated for the right channel. In this setup, main speaker connections aremade between your receiver or amplifier in a traditional manner.8