SVS question on plus and ultra models

marcpam
marcpam Posts: 228
edited October 2006 in Subwoofer Hookup & Bass Management
Do the new PB12/2+ or ultra come with a balanced input?
Post edited by marcpam on
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  • scottvamp
    scottvamp Posts: 3,277
    edited October 2006
    NO! I don't think any do. Just check there web site out. They have clear pics and descriptions.
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  • marcpam
    marcpam Posts: 228
    edited October 2006
    I noticed before i posted that the new mini pb12's have the balanced input, wasn't sure on the bigger models. Website has no pictures of the newer models, they look like the same pictures from a yr. ago
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  • scottvamp
    scottvamp Posts: 3,277
    edited October 2006
    Ya, only the new sealed box does, probably because its sealed. Balanced inputs arn't common on subwoofers.
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  • MikeC78
    MikeC78 Posts: 2,315
    edited October 2006
    No. For what reason do you need balanced input?
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  • DarqueKnight
    DarqueKnight Posts: 6,765
    edited October 2006
    Balanced inputs offer superior noise (hum) rejection. This is particularly valuable for long runs of cable. Sometimes the optimum location for a subwoofer is a fairly long distance from the audio system. Balanced inputs make sense in this type of application.
    Proud and loyal citizen of the Digital Domain and Solid State Country!
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  • MikeC78
    MikeC78 Posts: 2,315
    edited October 2006
    I understand that DarqueKnight, thank you. The reason I was asking is that under "normal" circumstances you would never need it or use it.

    I see he is using an Outlaw now. Does that pre come with balanced outs?

    Mike
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  • scottvamp
    scottvamp Posts: 3,277
    edited October 2006
    I believe the 950 does actually!
    I didn't know the PB12/2 changed......... (New)????
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  • MikeC78
    MikeC78 Posts: 2,315
    edited October 2006
    They haven't changed. The new sealed enclosure SB12?, comes with balanced inputs. That's the only model.

    Mike
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  • marcpam
    marcpam Posts: 228
    edited October 2006
    950 doesn't have balanced inputs
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  • MikeC78
    MikeC78 Posts: 2,315
    edited October 2006
    I guess the question is what do you plan on using balanced inputs if your pre-amp doesn't support it? Quit curius?

    Mike
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  • McLoki
    McLoki Posts: 5,231
    edited October 2006
    MikeC78 wrote:
    I guess the question is what do you plan on using balanced inputs if your pre-amp doesn't support it? Quit curius?

    Mike

    990 has balanced outputs - (including sub) but no balanced inputs. It helps with hum, but is not considered a fully balanced pre since it does not contain balanced inputs. (for a cd player to hook up to for example)

    Michael
    Mains.............Polk LSi15 (Cherry)
    Center............Polk LSiC (Crossover upgraded)
    Surrounds.......Polk LSi7 (Gloss Black - wood sides removed and crossovers upgraded)
    Subwoofers.....SVS 25-31 CS+ and PC+ (both 20hz tune)
    Pre\Pro...........NAD T163 (Modded with LM4562 opamps)
    Amplifier.........Cinepro 3k6 (6-channel, 500wpc@4ohms)
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  • MikeC78
    MikeC78 Posts: 2,315
    edited October 2006
    I understand that he has the 950, with which he wouldn't benefit from a balanced line.

    There is no benefit using a unbalanced connection(RCA) to a XLR connection on a subwoofer (vise versa). That is what I'm asking if he plans on doing? If the connections on both isn't fully balanced there is nothing to gain, in fact you can actually make it worse having your connections that way. I speak from experience... I ran Belden 1800F balanced cable via my pre-pre(Pioneer VSX-74TXVi) to my Monster MPA 3250 amps(XLR) and there was terrible hum/interference. I then concluded with BJC 12' RCA LC-1 cable from both and it was dead silent.

    Mike
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  • scottvamp
    scottvamp Posts: 3,277
    edited October 2006
    marcpam wrote:
    950 doesn't have balanced inputs
    I was just guessing because you asked. Let the thread killer close this one.
    Thier are no new PB12/2's out thier and thier is really no need for a balanced input on a sub. That is why "they" don't come with'em. I have had 30' runs with quality rca with no probelm.
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