Using a subwoofer on an older amplifier without lfe or sub out
I have a pair of Polk bookshelf speakers and want to use a subwoofer with it. My question is would it be better to hookup the subwoofer to the "B" output speakers and keep the bookshelfs on the "A" output? That way the full freq response would be still coming from the bookshelfs while still getting the lows from the sub when using the "A"+"B" switch.
Comments
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You normally would not want the bookies hitting the same frequency as the sub. You want the sub to continue where the bookies stop producing sound or, run output a to the sub and hook the speakers up to the sub to use the subs crossover.Klipsch The Nines, Audioquest Thunderbird Interconnect, Innuos Zen MK3 W4S recovery, Revolution Audio Labs USB & Ethernet, Border Patrol SE-I, Audioquest Niagara 5000 & Thunder, Cullen Crossover II PC's.
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What about the subs that just have speaker in and no output ? The bookshelf speakers themselves sound good with full freq response. Why would you want to cut them off if you just want to add a little more bass?
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Same reason there are crossovers in your speakers2-channel: Modwright KWI-200 Integrated, Dynaudio C1-II Signatures
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What amp or integrated are you using here? What sub are you using? If the sub has it's own amp, then the speaker cable hook up is only providing signal for the internal amp, and not really robbing any power from the amp. I have a small Raven tube amp I run like this. It has two sets of binding posts, and I use the 8 ohm output for the main speakers, and the 4 ohm for the sub.Sunfire Theater Grand IV
Sunfire Cinema Grand Signature
SRS 2.1TL
SDA 2BTL's
CSiA6
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Monitor 10A's
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I am using Polk TSi200 and a polk psw505 sub. The amp is a Kenwood KA405. It has an A+B switch.
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Could not find a manual for the Kenwood, but I think, from looking at a photo of the Kenwood KA-405, you can select A and B on the speaker selector knob. Run a pair of speaker cables from the Kenwood B speaker binding posts to the PSW505 speaker in binding posts. I think that would be your best bet. The sub is using the signal from the speaker cable, but it's not using a bunch of power to drive the sub driver. It has it's own amp to do the work.Sunfire Theater Grand IV
Sunfire Cinema Grand Signature
SRS 2.1TL
SDA 2BTL's
CSiA6
FXiA4
FXiA6
SDA 2A's
Monitor 10A's
http://www.douglasconnection.com -
Why can't he run the speaker level inputs of the sub, use that crossover on the sub, done.HT SYSTEM-
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lsi 9's -
helipilotdoug wrote: »Could not find a manual for the Kenwood, but I think, from looking at a photo of the Kenwood KA-405, you can select A and B on the speaker selector knob. Run a pair of speaker cables from the Kenwood B speaker binding posts to the PSW505 speaker in binding posts. I think that would be your best bet. The sub is using the signal from the speaker cable, but it's not using a bunch of power to drive the sub driver. It has it's own amp to do the work.
"Phew" Thank you
