Polk SDA SRS

stuckin4low
stuckin4low Posts: 13
edited November 2011 in Vintage Speakers
Need amplifier suggestions !!! The H/K I was going to use is not a common ground. Really want something north of 500 watts per channel. Suggestions?
Post edited by stuckin4low on
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  • Phasewolf
    Phasewolf Posts: 514
    edited October 2011
    I maybe off base here but I think in the sticky about into on the sda there is a cable you can build that will allow you to use the amp you have take a look.
    Absolute corruption empowers absolutely.

    Lg 55LW5600 TV
    Onkyo PR-SC 5508
    Legacy Audio Focus SE
    Legacy Audio Silverscreen HD center
    Polk F/X500i Rears
    Parasound HCA-3500
    Sunfire Grand Cinema
    Behringer iNUKE NU6000DSP
    Pair of CraigSUB SS-18.1
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  • stuckin4low
    stuckin4low Posts: 13
    edited October 2011
    I thought I read that the cable would work on the later TL's but not the earlier SRS's.
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  • Phasewolf
    Phasewolf Posts: 514
    edited October 2011
    That maybe the case I am not too sure I am sure one of the vets of the site will be along shortly that will be able to say one way or the other. As for a new amp what are you looking to spend?
    Absolute corruption empowers absolutely.

    Lg 55LW5600 TV
    Onkyo PR-SC 5508
    Legacy Audio Focus SE
    Legacy Audio Silverscreen HD center
    Polk F/X500i Rears
    Parasound HCA-3500
    Sunfire Grand Cinema
    Behringer iNUKE NU6000DSP
    Pair of CraigSUB SS-18.1
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  • stuckin4low
    stuckin4low Posts: 13
    edited October 2011
    It doesn't have to be new but I don't wNt to spend more than $800.
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  • Toolfan66
    Toolfan66 Posts: 17,259
    edited October 2011
    You do need a common ground amp for the SRS's the AI-1 SDA cable will not work on the SRS's
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  • stuckin4low
    stuckin4low Posts: 13
    edited October 2011
    Thanks Toolman. That's what I figured.
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  • F1nut
    F1nut Posts: 50,575
    edited October 2011
    Watts are not the answer, peak to peak current (amps) is what you're looking for. That said, I've got no suggestions in your price range.
    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 t-u-r-d by the clean end."

    President of Club Polk

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  • Dennis Gardner
    Dennis Gardner Posts: 4,861
    edited October 2011
    F1nut is correct as 500 WPC in a home audio amp will be hard to come by even somewhat above your budget. The speakers will handle the wattage and they do like lots of power, but you need to realize that 500 WPC is only 3dB louder than a 250WPC amp. There are alot of really stout amps in the 150-250WPC that would work great with your SDAs. Search for brands like Parasound, Acurus, Rotel, Adcom, Sunfire/Carver. These offerings will fit your budget and would drive your speakers nicely.
    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
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  • stuckin4low
    stuckin4low Posts: 13
    edited October 2011
    I understand watts are not the entire answer but they do count. I want something that will have high current and dynamic headroom. Having said that, there are plenty of amps that will fit those specs on eBay. Just have to be patient to find it. I just need suggestions on which amps "pair" well with the SRS's.
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  • toucanet
    toucanet Posts: 580
    edited October 2011
    Here's one to consider:
    http://www.audiogon.com/cgi-bin/cls.pl?ampstran&1324642219&/Carver-A760X-Amplifier
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  • brgman
    brgman Posts: 2,859
    edited October 2011
    Carver M1.0t Modded MkII opt 2
    Below are details of the Carver mk IItm series M-1.0t (non-inverting model):

    Rating
    Stock
    Mk II
    opt 002

    Power
    8 ohms
    200 watts <0.15% THD
    400 watts <0.15% THD
    460 watts <0.15% THD
    4 ohms
    400 watts <0.15% THD
    450 watts <0.15% THD
    510 watts <0.15% THD

    At Clipping
    8 ohms
    350 watts
    450 watts
    500 watts
    4 ohms
    500 watts
    520 watts
    550 watts

    Dynamic
    8 ohms
    550 watts
    670 watts
    700 watts
    4 ohms
    832 watts
    940 watts
    1000 watts
    2 ohms
    928 watts
    1250 watts
    1290 watts

    I have 2 of them and love them with SDA's.Run about $700.
    Watch ebay or get a standard M1.0t and have it modded.I am always changing things so if you don't find one i might move one of mine.
    Main Rig-Realistic AM/FM Record player 8 track boasting 4 WPC

    Backup Rig-2 CH-Rogue Audio Zeus w/Factory Special Dark Mods,Joule-Electra 300ME Platinum Preamp,OPPO-105 w/Modwright Tube Mod, Auralic Aries G2.1,Polk 2.3TL,3.1TL's,Dreadnought,RTA-15TL's,1C's All Fully Modded,2xRTA-12c's ,Benchmark DAC3 HGC,Synology NAS,VPI Scout w/Dynavector DV-20XH and Rogue Audio Ares Phono Preamp,Sony PCM-R500 DAT,HHB-850 Pro CDR,Tascam CC-222SLMKII Cassette/CDR,MIT S3.3 Shotgun Cables,Shunyata Hyra-8,Shunyata and Triode Labs Power Cords

    I’M OFFENDED!!!!
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  • nooshinjohn
    nooshinjohn Posts: 25,422
    edited October 2011
    Here is your answer. Sunfire and SDA's are a match made in audio heaven. Those that have heard my 2.3TL's powered by a Sunfire were blown away by the combo. This particular model doubles down into 4 ohms for 600wpc. That will be plenty of poser for you to get the job done and thensome.

    http://www.audiogon.com/cgi-bin/cls.pl?ampstran&1325088703&/Sunfire-300-Load-Invariant-ste
    The Gear... Carver "Statement" Mono-blocks, Mcintosh C2300 Arcam AVR20, Oppo UDP-203 4K Blu-ray player, Sony XBR70x850B 4k, Polk Audio Legend L800 with height modules, L400 Center Channel Polk audio AB800 "in-wall" surrounds. Marantz MM7025 stereo amp. Simaudio Moon 680d DSD

    “When once a Republic is corrupted, there is no possibility of remedying any of the growing evils but by removing the corruption and restoring its lost principles; every other correction is either useless or a new evil.”— Thomas Jefferson
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  • F1nut
    F1nut Posts: 50,575
    edited October 2011
    Having said that, there are plenty of amps that will fit those specs on eBay.

    Such as?

    Try Audiogon, there's a better selection of higher quality amps.
    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 t-u-r-d by the clean end."

    President of Club Polk

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  • Emlyn
    Emlyn Posts: 4,494
    edited October 2011
    If you can find a used Rotel RB-1090, that will put out more than 500 watts per channel into a 4 ohm load. Pricing on those is around $900-$1200 still though. The RB-1090 is a common ground design.

    You really don't need a massive amp to drive the SDA-SRS, as the originals were fairly efficient. A used Rotel RB-1080 would be fine, as would a B&K 200.2, or many others in the same price range of $400-$700 used. The Rotel and B&K amps are high current and can output 350+ watts per channel into the SRS. I'd recommend a B&K amp if you are still using the original tweeters in the speakers.
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  • stuckin4low
    stuckin4low Posts: 13
    edited October 2011
    Awesome, thanks for the suggestions to everyone except F1nut. Keep'm coming.
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  • F1nut
    F1nut Posts: 50,575
    edited October 2011
    stuckin4low wrote: »
    Awesome, thanks for the suggestions to everyone except F1nut. Keep'm coming.

    You really are stuck in 4 low, aren't you. :rolleyes:
    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 t-u-r-d by the clean end."

    President of Club Polk

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  • Toolfan66
    Toolfan66 Posts: 17,259
    edited October 2011
    I think I can I think I can!!!
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  • stuckin4low
    stuckin4low Posts: 13
    edited October 2011
    Any one have experience with Adcom? I found an Adcom GFA-555ii that has been restored for a good price. Don't know if this is a common ground amp though.
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  • phocion
    phocion Posts: 157
    edited October 2011
    The Adcom 555 series I & II are common ground. I have a 555 Mark II that run a pair of SDA's and it is a very enjoyable combo. The only non-common grounds that I am aware of from Adcom in that time frame are the 585 monoblocks.
    The secret for harvesting from existence the greatest fruitfulness and greatest enjoyment is to live dangerously. - Nietzche
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  • Toolfan66
    Toolfan66 Posts: 17,259
    edited October 2011
    phocion wrote: »
    The Adcom 555 series I & II are common ground. I have a 555 Mark II that run a pair of SDA's and it is a very enjoyable combo. The only non-common grounds that I am aware of from Adcom in that time frame are the 585 monoblocks.

    Ummm no!! The 585's yes but thats a give in considering they are monoblocks I do know the 565's the 5802 are not common ground as well, you can tie the negitive posts together and be safe with the amps above..

    I am almost positve the 555's are not common ground..
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  • chandler9a
    chandler9a Posts: 878
    edited October 2011
    I believe the original GFA 555s are common ground. I sure hope so bc thats what I use on my SDAs haha

    I have heard that the Series II are not though, if thats what you meant Larry
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  • cstmar01
    cstmar01 Posts: 4,424
    edited October 2011
    I run a Parasound HCA2200 that I picked up for 500 bucks and use it with my SRS's. Mates well and no issues driving them at all. F1Nut offered you advice and not sure your problem with it. Watts are not everything, so don't get hung up on the number of 500. Parasound amps are common ground as well, any of them is what I was told by Parasound themselves. The A21 is a great amp as well but will be out of your price range.
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  • phocion
    phocion Posts: 157
    edited October 2011
    TOOLFORLIFEFAN wrote: »
    Ummm no!! The 585's yes but thats a give in considering they are monoblocks I do know the 565's the 5802 are not common ground as well, you can tie the negitive posts together and be safe with the amps above..

    I am almost positve the 555's are not common ground..

    I agree that the later 5XXX series were not common ground, when they switched to MOFSET, but the 5X5 line are all common ground, with the exception of the mono blocks (565, 585).
    The secret for harvesting from existence the greatest fruitfulness and greatest enjoyment is to live dangerously. - Nietzche
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  • Schurkey
    Schurkey Posts: 2,102
    edited October 2011
    The 585 isn't a monobloc amp. It's stereo. The 565 is monobloc.

    I'm thinking both of them were subject to the capacitor problem.





    Aragon 8008ST just closed on eBay for $521/free shipping. That and a five-dollar jumper strap for the negative terminals and you'd be set. (or a 4004 and no need for the ground strap.)
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  • Tour2ma
    Tour2ma Posts: 10,177
    edited October 2011
    cstmar01 wrote: »
    I run a Parasound HCA2200 that I picked up for 500 bucks and use it with my SRS's. Mates well and no issues driving them at all. F1Nut offered you advice and not sure your problem with it. Watts are not everything, so don't get hung up on the number of 500. Parasound amps are common ground as well, any of them is what I was told by Parasound themselves. The A21 is a great amp as well but will be out of your price range.
    No, Jesse offered a tactless, wet-blanket, truism, but no guidance, and then acted all hurt when stuckin' called him on it. Whereas you offered both a fact and advice... and I'm sure both were appreciated.

    si4l,
    Many good choices mentioned.

    My SRS's have been Carver powered one way or another most of their lives, including the latest incarnation, a 5-ch Sunfire Signature Cinema.

    Bi-amping the SRS's with the tweets on the Sig's Current output and Voltage outs to the MW's is a wonderful match, but may be just out of your $ range. As suggested earlier, a bi-wired 2-ch Sunfire would be an option worth pursuing.

    Other Carvers worth looking for include later M1.5t's (Serial # 4000 and higher) and M4.0t's. Only Carver to avoid is the M500(t) series... not common ground.

    Good luck...
    More later,
    Tour...
    Vox Copuli
    Better to remain silent and be thought a fool, than to open your mouth and remove all doubt. - Old English Proverb

    "Death doesn't come with a Uhaul." - Dennis Gardner
    "It's easy to get lost in price vs performance vs ego vs illusion." - doro
    "There is a certain entertainment value in ripping the occaisonal (sic) buttmunch..." - TroyD
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  • Joe08867
    Joe08867 Posts: 3,919
    edited October 2011
    The original 555 was common ground all the later series I believe are not common ground so they are a no no.
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  • phocion
    phocion Posts: 157
    edited October 2011
    Schurkey wrote: »
    The 585 isn't a monobloc amp. It's stereo. The 565 is monobloc.

    I stand corrected, 585 was stereo. Need more coffee.
    The secret for harvesting from existence the greatest fruitfulness and greatest enjoyment is to live dangerously. - Nietzche
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  • F1nut
    F1nut Posts: 50,575
    edited October 2011
    LOL....still carrying a chip over the "**** bag" topic, eh Tour?
    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 t-u-r-d by the clean end."

    President of Club Polk

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  • TSWisla
    TSWisla Posts: 446
    edited October 2011
    Just because someone tells you something that you don't want to hear, it doesn't mean that they are wrong. F1 really knows his stuff. You would be foolish not to at least consider what he is saying...
    stuckin4low wrote: »
    Awesome, thanks for the suggestions to everyone except F1nut. Keep'm coming.
    Zu Soul Supreme
    Coincident Frankenstein mkIII
    Esoteric K-07
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  • Tour2ma
    Tour2ma Posts: 10,177
    edited November 2011
    Still tone deaf in all ways, eh Jesse?
    More later,
    Tour...
    Vox Copuli
    Better to remain silent and be thought a fool, than to open your mouth and remove all doubt. - Old English Proverb

    "Death doesn't come with a Uhaul." - Dennis Gardner
    "It's easy to get lost in price vs performance vs ego vs illusion." - doro
    "There is a certain entertainment value in ripping the occaisonal (sic) buttmunch..." - TroyD
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