Question about Infinity BU-1 Speaker

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Is it possible to hook the infinity bu-1 subwoofer to a home theater system where the subwoofer output is straight power say it"s like 25 watts coming out of that one channel and before the original subwoofer use to be a 6inch unpowered sub, i"m just wondering what the ohms are on the bu-1 because your not suppose to hook anything to the system below 8 ohm as far as the sub goes and the amp on the bu-1 saids it"s 4 ohm or no more than 4ohm minimum, i also took out the sub and looked on the back of the magnet and i didn"t see anything about ohm"s on that, i was just wondering would the subwoofer by itself be the same ohm as the amp its running off of, i"m thinking the subwoofer has to be 6-8 ohm for a house system, i know car audio is 4-ohm mostly and your not suppose to hook car speakers to 8 ohm house stereos

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In general higher speaker impedance is safer than lower impedance for the amp. Don't expect anything impressive re: audio output from a passive (unpowered) sub if your HTS says it pushes only 25 watts. Without frequency bandwidth and distortion noted the spec is virtually useless as a comparison.

The BU-1 is a powered sub that accepts either RCA Line Level or HIGH LEVEL amplifier power. If you use the latter, impedance is a non-issue because the input feeds the BU-1's internal amp, not the speaker directly. You should be okay.

Perhaps if we knew some specifics about the HTS we could do more than guess.

Posted on Jul 21, 2010

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Posted on Jan 02, 2017

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----------------
Product Features and Technical Details
  • Dolby Digital, Dolby Pro Logic II, and DTS-decoding home theater receiver with 5 speakers and a powered subwoofer
  • 35 watts per channel x 4 "tallboy" speakers, 140 watts for the center channel, and 150 watts for the subwoofer
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  • Magnetic shielding for distortion-free placement near a TV or computer monitor
  • Includes digital FM/AM tuner and a universal remote control
Technical Details
  • Brand Name: Panasonic
  • Model: SC-HT900
  • Output Wattage: 390
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  • Audio Output Mode: Surround Sound
  • Surround Sound Effects: Super Surround Sound
  • DVD Type: DVD changer
  • Built In Decoder: Dolby Pro Logic II, Dolby Digital, DTS decoder
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  • Tuner Technology: Digital
  • Radio Bands Supported: AM/FM

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