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November 30, 2010

Where do I set the crossover control on my subwoofer’s back panel?

Filed under: AV question — Tags: , — Alan @ 2:39 pm

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.

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September 22, 2010

Three Home Theater Sound Enhancers You Can Try This Weekend

Home theater fans, audiophiles, and newcomers alike all have one goal in mind: to make their home theater or reproduced music sound better. It’s the engine driving most of our loudspeaker and equipment purchases, which is hardly surprising. After all, it’s an amazing era we live in where a savvy consumer can assemble some good loudspeakers, an amplifier and CD/DVD or Blu-ray player and achieve sound reproduction or home theater that can often rival or surpass the real thing, and do it in the comfort of your own home.

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October 1, 2009

A/V Tip: Back to Basics in Bass

Filed under: AV Tip of the Month — Tags: , , — Alan @ 10:44 pm

The driving rhythms of deep powerful bass in rock and pop music as well as the timpani, bass drum and double basses of an orchestra complete the bottom few octaves of humans’ hearing range. Without it, music sounds shallow and anemic, so it’s no surprise that bass is a requirement of even the most basic hi-fi or home theater system.

Judging by the questions that arrive in my email about bookshelf vs floorstanding speakers and subwoofers, it’s time to cover a few bass basics that even old hands may have overlooked.

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August 1, 2009

Audio Oddities: Solving Subwoofer Troubles

Filed under: AV Tip of the Month — Tags: , , — Alan @ 11:01 pm

It’s not uncommon for a new subwoofer owner to have problems getting the subwoofer to produce audible output. More often than not, it’s usually a matter of choosing the right menu items in the AV receiver, but there are some simple tests you can make to ensure that the subwoofer itself is activating properly and producing output.

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