Speaker distance

greg2350
greg2350 Posts: 544
edited April 2008 in Speakers
Im using a denon 3801 as my pre/processor and seperate rotel amps. I noticed on my denon there are settings for speaker distance right now my mains and center and sub are 9ft from seating position. My question is what change would I hear from setting the distance from 2ft to 20ft would setting the sub to 20ft give me more bass. Thanks for your help.:)

1 more question im using RT600's as my mains and surrounds should I set them to small or large on the denon.
TV: Philips 42" LCD 1080p
Front Speakers: Polk Audio RT800i
Center Speaker: Polk Audio CS1
Surround Speakers: Polk Audio R50's powered of Denon AVR
Subwoofer: Polk Audio DSW pro500
AVR: Denon 3801
DVD Player: Denon DVM 745 upscale 1080p
Sat: Directtv HD 10
Front Speakers Amp: Rotel RB 890
Center Speaker amp: Rotel 970 BX
Post edited by greg2350 on

Comments

  • kuntasensei
    kuntasensei Posts: 3,263
    edited April 2008
    The distance setting is actually a digital delay to ensure that the sound from each speaker arrives at your main listening position simultaneously. So if a speaker is slightly closer, its sound gets delayed slightly so that it arrives when it's supposed to. Take a tape measure and measure from the face of each speaker to the central seating position, then plug those numbers in. This is especially important for cross-channel pans, which are dependant on each speaker being in phase with the one next to it.

    Setting the sub to a greater distance would not give you more bass. It would simply put the subwoofer's sound completely out of phase and time with the sound from the other speakers. Measure carefully, plug the numbers in, and you're good to go.
    Equipment list:
    Onkyo TX-NR3010 9.2 AVR
    Emotiva XPA-3 amp
    Polk RTi70 mains, CSi40 center, RTi38 surrounds, RTi28 rears and heights
    SVS 20-39CS+ subwoofer powered by Crown XLS1500
    Oppo BDP-93 Blu-ray player
    DarbeeVision DVP5000 video processor
    Epson 8500UB 1080p projector
    Elite Screens Sable 120" CineWhite screen
  • Bamadude
    Bamadude Posts: 245
    edited April 2008
    Good info from Kuntasensei.

    You may have already found a setting for speaker level or maybe "trim". This is what you want to adjust for more volume if you can't adjust it higher manually on the sub. Have you calibrated your system with a sound meter? Sound level and speaker distance are the two most important parameters (in my book) to nail down during calibration.

    Oh, and set your speakers to small. This will push the low frequencies over to the sub where they belong in your setup. Not sure if you have a crossover setting on your Denon but 80Hz is a pretty popular setting. I set mine to 50.
    AVR: Pioneer VSX-84TXSi (RIP - lightening) / Amp: Sunfire Cinema Grand / Klipsh R-10B Sounbar, LC65fx / Sub: Elemental Designs LT/1300 / TV: Panasonic TH-50PH9UK /SIZE]
  • greg2350
    greg2350 Posts: 544
    edited April 2008
    Thanks for the info guys did my measurements set speakers to small sounds much better.:)
    TV: Philips 42" LCD 1080p
    Front Speakers: Polk Audio RT800i
    Center Speaker: Polk Audio CS1
    Surround Speakers: Polk Audio R50's powered of Denon AVR
    Subwoofer: Polk Audio DSW pro500
    AVR: Denon 3801
    DVD Player: Denon DVM 745 upscale 1080p
    Sat: Directtv HD 10
    Front Speakers Amp: Rotel RB 890
    Center Speaker amp: Rotel 970 BX