![]() ![]() Mono (monaural) subwoofer output jacks combine both stereo channels into one so that no sounds are lost like can happen with only using the left or right side signal.Įxample of the mono RCA subwoofer output jack found on many home receivers. The subwoofer input jack usually connects to a single mono output jack on the receiver, although some models provide stereo RCA inputs but can usually work with just a single mono connection. Subwoofer level adjustment know (the amplifier’s gain level).Subwoofer crossover frequency adjustment.Here’s an example of what you’ll usually find: Powered subwoofers usually have several inputs and controls but it always depends on the brand and model. ![]() Note: Not all subwoofers have speaker level inputs, which makes it a problem connecting them to a receiver without a subwoofer output. Powered subwoofer inputs & controls you may (or may not) haveĮxample of a powered subwoofer with 2 types of signal inputs (speaker level and RCA jacks) along with sound controls. The “.1” is used to represent a sound channel limited to optional subwoofer use. The subwoofer output jack on a receiver is normally limited to passing bass only, either from stereo music production or from the “.1” subwoofer channel (dedicated subwoofer music content) of a surround sound system.įor example, when you hear references to “5.1” or “2.1” speaker systems or surround sound audio for movies, the first number represents the number of main speakers. The problem comes when you try to connect a subwoofer to a signal without a crossover – it sounds terrible! In order to produce clean-sounding bass without vocals or other sounds a subwoofer can’t properly produce, a low-pass crossover is used. The subwoofer works by resting inside of a speaker enclosure where bass frequencies are captured as the woofer cone movies, producing deep bass sound. It’s wired directly the speaker terminals or through passive bass crossover inside in some cases. Passive (non-powered) subwoofers are simply a subwoofer speaker inside a bass enclosure.These types are one of the most common and in many cases use an RCA type input jack to connect to the receiver for sound. Powered subwoofers use a low-signal signal that is boosted using a built-in amplifier, power supply, and output only bass using a crossover.Home stereo subwoofers are available in two different types: powered (“active”) and non-powered (“passive”). Stereo vs surround sound receiver subwoofer output differencesĬomparison of non-powered (passive) vs powered (active) home stereo subwoofer enclosures. ![]() Connecting receiver speaker outputs to a passive sub Using a mini amplifier for passive subwoofers Connecting a receiver to a subwoofer with RCA input jacks
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