Q. How do I connect the subwoofer to my A/V receiver? I have one cable. Do I plug it into the subwoofer’s left or right input, or both?
A. Use either the left or right line-level RCA jack on the subwoofer. You don’t need to connect it to both, because the inputs are “summed” to mono inside the sub. Connect the remaining RCA male plug at the other end of the shielded coaxial cable to the single “Subwoofer Output” jack on your receiver. It might also be labeled “LFE Out” (Low Frequency Effects) or “Sub Out.” That’s it! Subwoofer connection made easy! Log in
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Check out the latest M3 bookshelf speaker review at About.com.
Reviewer Gary Altunian writes “While they belted out a good country tune, they also behaved with finesse in Ana Caram’s performance of ‘Meditation’ from Chesky Records ‘Rio After Dark’ disc. The piano, her delicate voice and other instruments sounded very detailed and clean with good center imaging.”
Read the full bookshelf speaker review here!
Q. If I get M60 or M80 floorstanding speakers for my left and right front channels in my home theater system, do I still need a subwoofer?
A. You can use the M60 or M80 without a subwoofer because both have smooth, extended bass output, but for movie soundtracks and home theater applications, the subwoofer produces lots of very low-frequency effects designated just for the sub, plus bass for the center and effects channels, especially when you have the Bass Management in your receiver set to “Small” for the center and surround speakers. If you set your main floor standing tower speakers to “Large”, the subwoofer will still handle deep bass dedicated to the LFE channel and the towers will cover bass that was mixed full frequency to the front left and right towers. Log in
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Q. Where do I set the crossover control on my subwoofer’s back panel?
A. If you are using a Dolby Digital/dts A/V surround receiver with its own Subwoofer Output jack, and a single coaxial cable to your sub, then the subwoofer’s internal crossover becomes unnecessary and you should turn the control to its highest setting (150 Hz) to effectively remove it from the circuit. Some brands of subwoofers may have a “Bypass” switch, which does the same thing. By doing this, you are avoiding “cascading crossovers,” or using two crossovers in a row, which may cause losses or gaps in the bass response. The A/V receiver performs all the “bass management” and routes the appropriate frequencies to your subwoofer from the Sub Output jack, so the sub crossover becomes redundant. Log in
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