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  1. #1

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    Default Big amp to replace my polk RT3000p's

    I have 4 polk audio RT 3000p's and 3 of the subwoofer amps don't work properly. Instead of spending the $ to get them fixed, I was considering running my 2004 re audio xxx 18. It's a D4 ohms sub so I'd like a amplifier that can put out a good 1000rms at 2 or 8 ohms. I can build and design an enclosure for it.
    My question is what's an efficient and decent SQ amplifier I can use?

    I'm somewhat new to home audio. What's a good price to sell the rt3000p amplifiers for on eBay (they will help fund my amp). Amplifiers turn on but 2 of them make a humming sound and all 3 of them cause the subwoofers to produce an annoying cracking sound. Thank you for all the help, Joseph.

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    I have 4 polk audio RT 3000p's and 3 of the subwoofer amps don't work properly. Instead of spending the $ to get them fixed, I was considering running my 2004 re audio xxx 18. It's a D4 ohms sub so I'd like a amplifier that can put out a good 1000rms at 2 or 8 ohms. I can build and design an enclosure for it.
    My question is what's an efficient and decent SQ amplifier I can use?
    Get one of those cheap pro amps, perfect for what you want.

    I'm somewhat new to home audio. What's a good price to sell the rt3000p amplifiers for on eBay (they will help fund my amp). Amplifiers turn on but 2 of them make a humming sound and all 3 of them cause the subwoofers to produce an annoying cracking sound. Thank you for all the help, Joseph.
    Since they don't work why do you think anyone wants them?
    'Political Correctness'.........defined

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  3. #3

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    Quote Originally Posted by F1nut View Post
    Get one of those cheap pro amps, perfect for what you want.

    1500 rms amp for under $200 shipped? There is a reason why it's that cheap.

    Since they don't work why do you think anyone wants them?
    I know you have seen people paying $ for amplifiers that need to be repaired. If you don't want to help me, stay out of the thread.

  4. #4

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    LOL......I was helping you, but don't worry, it won't happen again.
    'Political Correctness'.........defined

    "A doctrine fostered by a delusional, illogical minority and rabidly promoted by an unscrupulous mainstream media, which holds forth the proposition that it is entirely possible to pick up a turd by the clean end."

  5. #5

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    It's ok I'll unsubscribe myself from your polk audio forum. Have a good day.

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    Pretty funny

  7. #7

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    Wow, what an attitude, jeeze
    Home Theater/2 Channel:
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    Pioneer Elite VSX-72TXV, Carver PM-350, SVS PB2-Plus Subwoofer


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    HOLY COW....some people's children...need to learn a little manners

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    If the amps are working fine and have been repaired/updated or just have minor issues(Caps, voltage regulator) then maybe someone will pay $75-$150 each for them if they are the DIY type....but how would one know? IMO, no more than $50 for a questionable amp. Once one factors in the cost to buy a used amp, the cost to ship, the cost of shipping to be repaired, the cost of the repair, and the cost to ship back....It might not be worth it for someone that has amps already that can be repaired. The issue with these amps is that sometimes the PCB go bad or get damaged to the point that most shops won't touch them. Then, they are a pain to ship...you have top be very careful in packaging these and don't ship mutiples together unless they are seriously isolated from knocking into each other. These is a guy on ebay asking $150+$50 shipping for a used amp with issues like yours. Not sure who would pay that much?

    I have a couple that have several issues that had me scratching my head. I will pull them out again and go at repairing them again. But, I have $200 invested in the amps, ~$50 in parts already and I need more, and one was badly damaged from shipping....So, if I get one working I will be lucky. The reality is...I could have bought a new amp for $120-$199 or a more powerful used amp.

    So get what you can get for them.
    FAMILY ROOM
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    "I'm somewhat new to home audio" Jesse gives him good advice, and he get's his panties all twisted LOL
    Home Theater/2 Channel:
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    Sonicaps, Mills, RDO-194s-198s, Dynamat, H-Nuts, BH5
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    Bit of an odd duck there. I wonder what his response would have been had I recommended the Musical Fidelity Titan amp?
    'Political Correctness'.........defined

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  12. #12

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    Quote Originally Posted by F1nut View Post
    LOL......I was helping you, but don't worry, it won't happen again.
    Sorry had a long ruff day and was convinced you were giving you we're blowing me off. I apologize for the attitude.

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    We're all here to help
    Home Theater/2 Channel:
    Front: SDA-2ATL http://www.polkaudio.com/forums/show...ished...Almost
    Center: Custom http://www.polkaudio.com/forums/show...hannel-Project
    Surrounds & Rears: Custom http://www.polkaudio.com/forums/show...rround-Project
    Sonicaps, Mills, RDO-194s-198s, Dynamat, H-Nuts, BH5
    Pioneer Elite VSX-72TXV, Carver PM-350, SVS PB2-Plus Subwoofer


    www.dhsspeakerservice.com

  14. #14

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    Quote Originally Posted by WLDock View Post
    If the amps are working fine and have been repaired/updated or just have minor issues(Caps, voltage regulator) then maybe someone will pay $75-$150 each for them if they are the DIY type....but how would one know? IMO, no more than $50 for a questionable amp. Once one factors in the cost to buy a used amp, the cost to ship, the cost of shipping to be repaired, the cost of the repair, and the cost to ship back....It might not be worth it for someone that has amps already that can be repaired. The issue with these amps is that sometimes the PCB go bad or get damaged to the point that most shops won't touch them. Then, they are a pain to ship...you have top be very careful in packaging these and don't ship mutiples together unless they are seriously isolated from knocking into each other. These is a guy on ebay asking $150+$50 shipping for a used amp with issues like yours. Not sure who would pay that much?

    I have a couple that have several issues that had me scratching my head. I will pull them out again and go at repairing them again. But, I have $200 invested in the amps, ~$50 in parts already and I need more, and one was badly damaged from shipping....So, if I get one working I will be lucky. The reality is...I could have bought a new amp for $120-$199 or a more powerful used amp.

    So get what you can get for them.
    Thank you. I appreciate your advice. I have read in the past of the rt3000p amps being in high demand. And I have sold a non working carver amp for $110 on eBay last year so I thought these would be worth something but I was wrong. Thank you for the response.

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    Quote Originally Posted by westmassguy View Post
    Wow, what an attitude, jeeze
    Quote Originally Posted by westmassguy View Post
    "I'm somewhat new to home audio" Jesse gives him good advice, and he get's his panties all twisted LOL
    I guess I deserved that.

  16. #16

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    F1nut is one of the best members here you may not like what he has to say sometimes but he speakith the truth. That being said I can also see someone else who has the time and money would be interested in those. If it were me I'd get them fixed. If I remember right there are cap and resistor problems with those as they get older. I just watched a Carver TFM45 that was in rough shape and didn't work but it was worth 300.00 to someone on eBay. So toss another 400.00 into it and you have a good amp but that was a big 300.00 gamble.

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    Quote Originally Posted by pitdogg2 View Post
    F1nut is one of the best members here you may not like what he has to say sometimes but he speakith the truth. That being said I can also see someone else who has the time and money would be interested in those. If it were me I'd get them fixed. If I remember right there are cap and resistor problems with those as they get older. I just watched a Carver TFM45 that was in rough shape and didn't work but it was worth 300.00 to someone on eBay. So toss another 400.00 into it and you have a good amp but that was a big 300.00 gamble.
    I was convinced he was giving me attitude but I see now that he was trying to help and I came off as the rude one.

    I think what I'll do is put the rt3000p's in the storage for now instead of tossing them in the trash. Some of the polk subwoofers are also blown and the only time I seen them for sale was $180 plus $15 shipping used on eBay. It just doesn't seem worth it.

    After looking for about 5 years, I recently found an older re audio xxx subwoofer (xbl^2) and I would really like to use it. In a proper enclosure, it will play much lower then the Rt3000p woofers with unbelievably low distortion. I also enjoy building enclosures and I am really looking forward to start the project. When I read "cheap pro amp" I really thought he was trying to insult me. But if its a good quality amplifier to run, then I'll go ahead and get one.

  18. #18

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    It will probably be the only time you ever see Jesse recommending a pro amp for a home set up. When using one for the bottom end you do not have to worry about losing any micro details in the upper regions.

  19. #19

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    Pro amps are fine for sub duty. I was running a sub on an old(15-20 yrs.old?) Crest Audio Professional 4000 amp and it ran fine.

  20. #20

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    Ok thank you! I didn't realize that the quality of the subwoofer amplifier doesn't make a huge difference.

    Another rookie question- how do I order one of those? I did a search on eBay for "pro amplifier" and I had a lot of different results. Is there a full name to the brand?

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    Look for a crown, crest, etc. For example a Crown XTi 1000/2000/3000/4000 will run those subs fine. The 1000 should be more than enough for two channels.
    There are many other brands as well, Crown is just the first one that comes to mind.
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    Ok thank you! All of my questions have been answered. I will have to get to working on it!:)

    F1nut- I apologize again. Appreciate your advice.

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    Quote Originally Posted by jeremymarcinko View Post
    Thank you! Before I purchase on impulse, I will look around a bit more. Possibly even by a used one with a WTB ad and gives me time to do more research on them. It will take me a while before I complete the enclosure so I have time. But at least I know now what to look for:)

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    Quote Originally Posted by jeremymarcinko View Post
    I have yet to model anything or run numbers etc...but I wonder if someone really wanted rebuild the RT3000P sub cabinets if the Tang Band W8-740P 8" will work: http://www.parts-express.com/pe/show...number=264-854 and a BASH 500 watts amp http://www.parts-express.com/pe/show...number=300-752 or a big two channel outboard amp or a 1000w Dayton Audio sub amp: http://www.parts-express.com/pe/show...number=300-811 If one is going to spend a lot of cash it would be nice to spend it on new parts.
    FAMILY ROOM
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    2 Ch Dreaming...hoping to purchase, build someday???
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  26. #26
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    The Crown XLS 1500/2000/2500 class-D amps are exactly what you need.

    Quote Originally Posted by Eocuph View Post
    I was convinced he was giving me attitude but I see now that he was trying to help and I came off as the rude one.
    Even if he was, he's a long time member and your a new member; being an upstanding and extremely helpful member for 10+ years earns you a lot.

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    Quote Originally Posted by zingo View Post
    The Crown XLS 1500/2000/2500 class-D amps are exactly what you need.



    Even if he was, he's a long time member and your a new member; being an upstanding and extremely helpful member for 10+ years earns you a lot.
    You are right.

  28. #28

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    Quote Originally Posted by zingo View Post
    The Crown XLS 1500/2000/2500 class-D amps are exactly what you need.
    Yeah, the CROWNS sound like they will POUND the RT3000's 8's. I slept on the two for $200 w/ modded fans that bsoko2 was selling: http://www.polkaudio.com/forums/show...877-Audio-sale Damn! I wanted to try one of those...but if I can't fix my amps myself, that is the route I'm going.
    FAMILY ROOM
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    2 Ch Dreaming...hoping to purchase, build someday???
    OPPO 105 | Cary or Rogue Audio tube Preamp | Parasound HALO A21 amp | DIY Mini Statements towers

  29. #29

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    Quote Originally Posted by Eocuph View Post
    Sorry had a long ruff day and was convinced you were giving you we're blowing me off. I apologize for the attitude.
    We're good, moving on....
    'Political Correctness'.........defined

    "A doctrine fostered by a delusional, illogical minority and rabidly promoted by an unscrupulous mainstream media, which holds forth the proposition that it is entirely possible to pick up a turd by the clean end."

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