Issue(s) with DSW MicroPro 2000

PrazVT
PrazVT Posts: 1,606
edited October 2011 in Troubleshooting
Hi Guys - so I purchased a refurb MicroPro 2000 from the Polk eBay store 2 months ago and I've noticed a few things and having a couple of issues...

As background, the pre-outs on my NAD 375bee are plugged into the inputs on the sub, and it's simply set to always on.

1 - adjusting the lowpass filter tends to cause alot of static and based on freq response utilities and a calibration mic, not sure the cutoffs are working exactly right. Ie. if I set it to 80hz, it acts more as if it was set to about 60hz.
2 - sometimes the sub won't come and the blue light flickers for a few min before the sub finally kicks in. At the moment, the light is on and the sub isn't working.

Time to call CS?
ALL BOXED UP for a while until I save up for a new place :(

Home Theater:
KEF Q900s / MIT Shotgun S3 / MIT CVT2 ICs | KEF Q600C | Polk FXi5 | BJC Wire | Signal / AQ ICs | Shunyata / Pangea PCs | Pioneer Elite SC 57 | Parasound NC2100 Pre | NAD M25 | Marantz SA8001 | Schiit Gungnir DAC | SB Touch

2 Channel:
Polk LSi9 (xo mods), Polk DSW MicroPro 2000 sub | NAD c375BEE | W4S DAC1 | SB Touch | Marantz SA-8001 | MIT AVt 2 | Kimber Hero / AQ / Signal ICs | Shunyata / Signal PCs
Post edited by PrazVT on
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Comments

  • [Deleted User]
    [Deleted User] Posts: 7,658
    edited October 2011
    I would think that's advisable.
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  • PrazVT
    PrazVT Posts: 1,606
    edited October 2011
    I would think that's advisable.

    Done. They're sending me a replacement back plate for the sub. First time I've had to call Polk for anything, but took all of 10 minutes to resolve the issue.
    ALL BOXED UP for a while until I save up for a new place :(

    Home Theater:
    KEF Q900s / MIT Shotgun S3 / MIT CVT2 ICs | KEF Q600C | Polk FXi5 | BJC Wire | Signal / AQ ICs | Shunyata / Pangea PCs | Pioneer Elite SC 57 | Parasound NC2100 Pre | NAD M25 | Marantz SA8001 | Schiit Gungnir DAC | SB Touch

    2 Channel:
    Polk LSi9 (xo mods), Polk DSW MicroPro 2000 sub | NAD c375BEE | W4S DAC1 | SB Touch | Marantz SA-8001 | MIT AVt 2 | Kimber Hero / AQ / Signal ICs | Shunyata / Signal PCs
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  • [Deleted User]
    [Deleted User] Posts: 7,658
    edited October 2011
    Excellent...!
    Sorry you had the problem to begin with.
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  • PrazVT
    PrazVT Posts: 1,606
    edited October 2011
    It's all good - it happens :)
    ALL BOXED UP for a while until I save up for a new place :(

    Home Theater:
    KEF Q900s / MIT Shotgun S3 / MIT CVT2 ICs | KEF Q600C | Polk FXi5 | BJC Wire | Signal / AQ ICs | Shunyata / Pangea PCs | Pioneer Elite SC 57 | Parasound NC2100 Pre | NAD M25 | Marantz SA8001 | Schiit Gungnir DAC | SB Touch

    2 Channel:
    Polk LSi9 (xo mods), Polk DSW MicroPro 2000 sub | NAD c375BEE | W4S DAC1 | SB Touch | Marantz SA-8001 | MIT AVt 2 | Kimber Hero / AQ / Signal ICs | Shunyata / Signal PCs
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  • PrazVT
    PrazVT Posts: 1,606
    edited October 2011
    OK - with some difficulty, I replaced the backplate and amp for the MP2k. I had to remove the passive radiator at first b/c the old backplate wouldn't come out. I installed the new one and tested the sub out and it works - the only issue now is that there's a squeaking noise coming w/ the music. I can't tell if it's a mechanical sound or electronic - ex. I'm hearing it with each drum beat.

    I don't have time today, but tomorrow I'll remove the passive and see if I still here it. Maybe it's not seated all the way in, even though all the screws are in?

    Hopefully it's not another bad amp...
    ALL BOXED UP for a while until I save up for a new place :(

    Home Theater:
    KEF Q900s / MIT Shotgun S3 / MIT CVT2 ICs | KEF Q600C | Polk FXi5 | BJC Wire | Signal / AQ ICs | Shunyata / Pangea PCs | Pioneer Elite SC 57 | Parasound NC2100 Pre | NAD M25 | Marantz SA8001 | Schiit Gungnir DAC | SB Touch

    2 Channel:
    Polk LSi9 (xo mods), Polk DSW MicroPro 2000 sub | NAD c375BEE | W4S DAC1 | SB Touch | Marantz SA-8001 | MIT AVt 2 | Kimber Hero / AQ / Signal ICs | Shunyata / Signal PCs
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  • PrazVT
    PrazVT Posts: 1,606
    edited October 2011
    I took the passive radiator off, rechecked all connections and high pitch squeal is coming from the amp itself. Will try to give CS a call tomorrow again - just not having much luck w/ this sub!
    ALL BOXED UP for a while until I save up for a new place :(

    Home Theater:
    KEF Q900s / MIT Shotgun S3 / MIT CVT2 ICs | KEF Q600C | Polk FXi5 | BJC Wire | Signal / AQ ICs | Shunyata / Pangea PCs | Pioneer Elite SC 57 | Parasound NC2100 Pre | NAD M25 | Marantz SA8001 | Schiit Gungnir DAC | SB Touch

    2 Channel:
    Polk LSi9 (xo mods), Polk DSW MicroPro 2000 sub | NAD c375BEE | W4S DAC1 | SB Touch | Marantz SA-8001 | MIT AVt 2 | Kimber Hero / AQ / Signal ICs | Shunyata / Signal PCs
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  • [Deleted User]
    [Deleted User] Posts: 7,658
    edited October 2011
    Wow, that is unusual. Ask to speak with Kim, he's the CS manager.
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  • PrazVT
    PrazVT Posts: 1,606
    edited October 2011
    Thanks Kenneth - I will give him a call between marathon conference calls :)
    ALL BOXED UP for a while until I save up for a new place :(

    Home Theater:
    KEF Q900s / MIT Shotgun S3 / MIT CVT2 ICs | KEF Q600C | Polk FXi5 | BJC Wire | Signal / AQ ICs | Shunyata / Pangea PCs | Pioneer Elite SC 57 | Parasound NC2100 Pre | NAD M25 | Marantz SA8001 | Schiit Gungnir DAC | SB Touch

    2 Channel:
    Polk LSi9 (xo mods), Polk DSW MicroPro 2000 sub | NAD c375BEE | W4S DAC1 | SB Touch | Marantz SA-8001 | MIT AVt 2 | Kimber Hero / AQ / Signal ICs | Shunyata / Signal PCs
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  • [Deleted User]
    [Deleted User] Posts: 7,658
    edited October 2011
    I talked with Kim and advised him of the situation.
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  • PrazVT
    PrazVT Posts: 1,606
    edited October 2011
    I called CS and spoke w/ Eric and they're going to replace the unit altogether since the issues are recurring. I've received the shipping label, so I'll send the sub out tomorrow.

    Thanks again for monitoring the situation Ken - much appreciated!
    ALL BOXED UP for a while until I save up for a new place :(

    Home Theater:
    KEF Q900s / MIT Shotgun S3 / MIT CVT2 ICs | KEF Q600C | Polk FXi5 | BJC Wire | Signal / AQ ICs | Shunyata / Pangea PCs | Pioneer Elite SC 57 | Parasound NC2100 Pre | NAD M25 | Marantz SA8001 | Schiit Gungnir DAC | SB Touch

    2 Channel:
    Polk LSi9 (xo mods), Polk DSW MicroPro 2000 sub | NAD c375BEE | W4S DAC1 | SB Touch | Marantz SA-8001 | MIT AVt 2 | Kimber Hero / AQ / Signal ICs | Shunyata / Signal PCs
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  • [Deleted User]
    [Deleted User] Posts: 7,658
    edited October 2011
    No problem, glad to be of help. I'm glad they're replacing the entire unit, that makes sense.
    Thanks for your patience!
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