0-180 degree

flr057
flr057 Posts: 20
edited August 2006 in Subwoofer Hookup & Bass Management
I know that this has been answered here before but I'm new to the forum so please give me a pass.

What is the difference in 0-180, what does it actually do?

I just switched my PSW 505 to '180' and my whole HT sounds much better but I still don't understand what I did.
Yamaha RX-V995
HK PA 5800
Klipsch KLF-10 (front)
Klipsch Academy (center)
Polk Rt- (rears)
SVS - PC12- NSD
Post edited by flr057 on
· Share on FacebookShare on Twitter

Comments

  • Dennis Gardner
    Dennis Gardner Posts: 4,861
    edited August 2006
    It controls the polarity of the subwoofer. Same effect as switching speaker wires around on the terminals. It causes the woofer to move out when it would normally move in. This allows for adjustment for distance from the main speakers to get them back into phase. Louder sound indicates the sub is in more phase with the mains.
    HT Optoma HD25 LV on 80" DIY Screen, Anthem MRX 300 Receiver, Pioneer Elite BDP 51FD Polk CS350LS, Polk SDA1C, Polk FX300, Polk RT55, Dual EBS Adire Shiva 320watt tuned to 17hz, ICs-DIY Twisted Prs, Speaker-Raymond Cable

    2 Channel Thorens TD 318 Grado ZF1, SACD/CD Marantz 8260, Soundstream/Krell DAC1, Audio Mirror PP1, Odyssey Stratos, ADS L-1290, ICs-DIY Twisted , Speaker-Raymond Cable
    · Share on FacebookShare on Twitter
  • steveinaz
    steveinaz Posts: 19,538
    edited August 2006
    As Dennis stated, it's a phase adjustment to "synchronize" your sub to your other speakers. Doing frequency sweeps will help you discover if you have a phase issue, and where is the best adjustment.
    Source: Bluesound Node 2i - Preamp/DAC: Benchmark DAC2 DX - Amp: Parasound Halo A21 - Speakers: MartinLogan Motion 60XTi - Shop Rig: Yamaha A-S501 Integrated - Shop Spkrs: Elac Debut 2.0 B5.2
    · Share on FacebookShare on Twitter
  • Drastlin
    Drastlin Posts: 18
    edited August 2006
    steveinaz wrote:
    As Dennis stated, it's a phase adjustment to "synchronize" your sub to your other speakers. Doing frequency sweeps will help you discover if you have a phase issue, and where is the best adjustment.

    Can you explain what a frequency sweep does. My woofer doesn't really sound in-tune with my other speakers around the room.
    · Share on FacebookShare on Twitter