psw350

prisco88
prisco88 Posts: 2
edited December 2001 in Technical/Setup
I'm a new to the home audio seen so I may have many easy questions from now on. On the back off my sub- there's a port for unfiltered and two ports for filtered ( left & right) . right now i have it hooked up to unfiltered LFE . and whats LFE ? thax..
Post edited by prisco88 on
· Share on FacebookShare on Twitter

Comments

  • jcaut
    jcaut Posts: 1,849
    edited December 2001
    LFE stands for Low Frequency Effects. It's the ".1" in "5.1" soundtracks, a seperate channel just for bass.

    The LFE input on the sub bypasses the variable low-pass crossover on the sub. Since the "Sub Out" on most (if not all) home theater receivers outputs a signal that is already filtered, you should use the "LFE In" on the sub and avoid filtering the signal twice. Does that make sense?

    If your receiver dosen't have a "Sub Out", or if the crossover frequency of the "Sub Out" doesn't work well for you, you might be able to use the L&R Line In's on the sub (if you have Preamp Outs on your receiver). It all depends on the specifics of your setup. Doing so would likely require other settings and adjustments that may be beyond the scope of what you asked.

    Hope that helps, and welcome to the forum!

    Jason

    And BTW, here's some more info about subwoofers and bass management.

    http://www.polkaudio.com/home/faqad/advice.php?article=bassmanage
    · Share on FacebookShare on Twitter
  • mikemokr
    mikemokr Posts: 150
    edited December 2001
    I'm finding this to be a very useful intro to various HT/HS topics:
    http://www.polkaudio.com/home/library/downloads/hthandbook.pdf

    good luck
    Main HT (family room): Polk Monitor 7 (1987-original owner) (L/R) / CSi40 (C) / RTi38 (SL/SR) / SVS 20-39PC (sub), Outlaw 975 pre/pro / Outlaw 7075 amp, Oppo BDP-93 Blu-ray, LG 42LM5800 teevee
    2ch (family room): CRS+ (1987), Outlaw 1050 AVR, Denon DCM-420 CD
    Kitchen satellite 2ch: Polk M3II, Topping TP-20 Tripath amp fed from 975 rec line out
    Home office: Model 5 (1978-Danish Peerless), Lepai 2020A+ Tripath amp fed by laptop dock
    Awaiting assignment: PSW202 (NIB) to be wired inline in home office rig; Monitor 5JR (1988), Model 4 (1983-US Peerless)
    · Share on FacebookShare on Twitter
  • prisco88
    prisco88 Posts: 2
    edited December 2001
    jason, My receiver is a onkyo tx-ds595, i'll have to look in to it to see if it's filtered through the receiver . I'm a newbee to all this so i may ask some simple questions . thanks for the info.
    · Share on FacebookShare on Twitter
  • mjk91383
    mjk91383 Posts: 298
    edited December 2001
    welcome to the forum, prisco!

    joe :D
    · Share on FacebookShare on Twitter
  • jcaut
    jcaut Posts: 1,849
    edited December 2001
    prisco88-

    I'm sure the sub out is a filtered signal. As I said, the best hookup depends on your specific equipment, but connecting your receiver's sub output to the LFE in on the sub is probably the most common hookup.

    Jason

    Simple questions are the only ones I have a chance at :D:D
    · Share on FacebookShare on Twitter