Finally a part of the SDA club!

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  • leftwinger57
    leftwinger57 Posts: 2,917
    edited December 2013
    I'm one of the many here who also use a 555 series1. Depending on condition $200 is below the average of $300 which is on all about every buy site there is. I got mine for $300 w/ spec certified from Audio Classics so it was checked and cleaned and they threw in shipping.Very powerful, clean I think not bright as some allude to and can push around just about any set of speeks most people around here have.




    2chl-Adcom gfa555--Onkyo P301 pre--Denon DP-11F tt--Grado gf-3 cart--Denon 1940ci cdp--Samson ps15-9outlet surge protector--
    Niles SP6- 6zn speaker selector--DCM Time Frame 350s--ADC303ax--Polk Audio 87'SDA 2Bs (bleached and restained tops dark
    walnut,Dynamat Extreme,Black Hole-5, Armaflex gaskets, Mills 0.5resistors,Larry's Rings,RDO-194 tweeters,Liquid Nails)
    Signal Cable 1mt i/c--Monster Cable 1mt i/c--12gu. to Polks--14gu. to all other sets
    H/T-Toshiba au40'' flat--Yamaha RX-V665--Yamaha YSD-11 Dock--I-Pod--Klipsch h/d#500 spkr set w/ 8'' pwrd sub--Sony ce 375
    carosel cdp--Toshiba BDX 2200 blu/ray--Shure Pro 240 headphones
    Bedroom---Sony STR-D590 receiver--Panasonic rv-32 cdp--JBL-J2060 bookenders
    2chl- Adcom GFA- 555-Onkyo P-3150v pre/amp- JVC-QL-A200 tt- Denon 1940 ci cdp- Adcom GFS-6 -Modded '87 SDA 2Bs - Dynamat Ext.- BH-5- X-Overs VR-3, RDO-194 tweeters, Larry's Rings, Speakon/Neutrik I/C- Cherry stain tops Advent Maestros,Ohm model E

    H/T- Toshiba au40" flat- Yamaha RX- V665 avr- YSD-11 Dock- I-Pod- Klipsch #400HD Speaker set-

    Bdrm- Nikko 6065 receiver- JBL -G-200s--Pioneer 305 headphones--Sony CE375-5 disc
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  • gudnoyez
    gudnoyez Posts: 8,124
    edited December 2013
    Nice grab $120 was a gift. I hope you enjoy them I also run an Adcom 555II and a Adcom 545II on a pair of 2b's and a pair of CRS+. To get a 555 and a set of 1C'S for $320 would be an awesome deal. Welcome to the club.
    Home Theater
    Parasound Halo A 31 OnkyoTX-NR838 Sony XBR55X850B 55" 4K RtiA9 Fronts CsiA6 Center RtiA3 Rears FxiA6 Side Surrounds Dual Psw 111's Oppo 105D Signal Ultra Speaker Cables & IC's Signal Magic Power Cable Technics SL Q300 Panamax MR4300 Audioquest Chocolate HDMI Cables Audioquest Forest USB Cable

    2 Channel
    Adcom 555II Vincent SA-T1 Marantz SA 15S2 Denon DR-M11 Clearaudio Bluemotion SDA 2.3tl's (Z) edition MIT Terminator II Speaker Cables & IC's Adcom 545II Adcom Gtp-450 Marantz CD5004 Technics M245X SDA 2B's, SDA CRS+

    Stuff for the Head
    JD LABS C5 Headphone Amplifier, Sennheiser HD 598, Polk Audio Buckle, Polk Audio Hinge, Velodyne vPulse, Bose IE2, Sennheiser CX 200 Street II, Sennheiser MX 365

    Shower & Off the beaten path Rigs
    Polk Audio Boom Swimmer, Polk Audio Urchin B)
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  • JSGuru
    JSGuru Posts: 37
    edited December 2013
    PolkieMan wrote: »
    Man those are real nice and at $60 apiece a real steal !!! I will have to hit some pawn shops when I am off next week.

    Ha! I saw them sitting there in the corner of the shop and had a bit of an internal freak out! I really had to play it cool and keep a calm guise...
    Bedroom Stereo: Harman Kardon H/K 3490/DCM-CX27's (goodwill find)
    Computer Room: Yamaha HTR-5240 (goodwill find)/TSI100's (goodwill find)
    Theater: Harman Kardon AVR-254 (goodwill find)/Jamo S426 (fronts)/Speakercraft 6.1 LCR (center) (goodwill find)/Jamo S420 (rears)
    AVR-254 (Zone 2): Yamaha M-80/SDA-1C (pawn shop find)/Insignia NS-B2111 (craigslist find)
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  • JSGuru
    JSGuru Posts: 37
    edited December 2013
    Glad to see I'm in the ballpark with the GFA555. I figured these things could eat!
    Bedroom Stereo: Harman Kardon H/K 3490/DCM-CX27's (goodwill find)
    Computer Room: Yamaha HTR-5240 (goodwill find)/TSI100's (goodwill find)
    Theater: Harman Kardon AVR-254 (goodwill find)/Jamo S426 (fronts)/Speakercraft 6.1 LCR (center) (goodwill find)/Jamo S420 (rears)
    AVR-254 (Zone 2): Yamaha M-80/SDA-1C (pawn shop find)/Insignia NS-B2111 (craigslist find)
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  • JSGuru
    JSGuru Posts: 37
    edited December 2013
    Also, what would you guys think about a NAD C270? I can also get one of those for about $220. Seems a little weak, but it does have soft clipping.
    Bedroom Stereo: Harman Kardon H/K 3490/DCM-CX27's (goodwill find)
    Computer Room: Yamaha HTR-5240 (goodwill find)/TSI100's (goodwill find)
    Theater: Harman Kardon AVR-254 (goodwill find)/Jamo S426 (fronts)/Speakercraft 6.1 LCR (center) (goodwill find)/Jamo S420 (rears)
    AVR-254 (Zone 2): Yamaha M-80/SDA-1C (pawn shop find)/Insignia NS-B2111 (craigslist find)
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  • boston1450
    boston1450 Posts: 7,638
    edited December 2013
    If you do get the amp let us know. I have something that you can have that will be useful. Till then enjoy them. Randy
    ..
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  • boston1450
    boston1450 Posts: 7,638
    edited December 2013
    Make sure it is a Common Ground Amp.. Sure others will chime in
    ..
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  • JSGuru
    JSGuru Posts: 37
    edited December 2013
    boston1450 wrote: »
    If you do get the amp let us know. I have something that you can have that will be useful. Till then enjoy them. Randy

    Really?! Now you got me all excited! ha!
    Bedroom Stereo: Harman Kardon H/K 3490/DCM-CX27's (goodwill find)
    Computer Room: Yamaha HTR-5240 (goodwill find)/TSI100's (goodwill find)
    Theater: Harman Kardon AVR-254 (goodwill find)/Jamo S426 (fronts)/Speakercraft 6.1 LCR (center) (goodwill find)/Jamo S420 (rears)
    AVR-254 (Zone 2): Yamaha M-80/SDA-1C (pawn shop find)/Insignia NS-B2111 (craigslist find)
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  • Oldfatdogs
    Oldfatdogs Posts: 1,874
    edited December 2013
    Welcome JSGuru, No one has told you yet GO HIDE YOUR WALLET!We love to spend other peoples money.
    Enjoy your speakers.
    Dan
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  • normac
    normac Posts: 13
    edited December 2013
    I recently purchased a used GFA-555 for $300. They were going for more than that on E-bay. Good deal and a great amp.
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  • PreCd
    PreCd Posts: 786
    edited December 2013
    I know the SDA2Bs are a different animal but I used to drive them with a GFA555 and it was more than enough. I sold that amp and bought a GFA-545 which still drives them to levels that are very loud. Nice speakers!
    JSGuru wrote: »
    Glad to see I'm in the ballpark with the GFA555. I figured these things could eat!
    SDA2BTL
    Marantz CD5004
    Adcom GFA-545
    Bottlehead Quickie Tube Preamp
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  • gmcman
    gmcman Posts: 1,806
    edited December 2013
    Man, nice score. Congrats and don't try to hide your wallet, we will find it. Others can chime in but I believe there is a narrow range of proper resistance to properly fabricate a interconnect cable. I heard this but have nothing more to go on it.
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  • drumminman
    drumminman Posts: 3,396
    edited December 2013
    gmcman wrote: »
    Others can chime in but I believe there is a narrow range of proper resistance to properly fabricate a interconnect cable. I heard this but have nothing more to go on it.

    I made mine out of high quality speaker cable. Works a treat and improved the imaging over the original stock cable.
    "Science is suppose to explain observations not dismiss them as impossible" - Norm on AA; 2.3TL's w/sonicaps/mills/jantzen inductors, Gimpod's boards, Lg Solen SDA inductors, RD-0198's, MW's dynamatted, Armaflex speaker gaskets, H-nuts, brass spikes, Cardas CCGR BP's, upgraded IC Cable, Black Hole Damping Sheet strips, interior of cabinets sealed with Loctite Power Grab, AI-1 interface with 1000VA A-L transformer
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  • JSGuru
    JSGuru Posts: 37
    edited December 2013
    Welp... It turns out my buddy had already sold the GFA555 about a month earlier. I hadn't voiced my need for it to him before that time, so he had no intention nor idea to hold it for me. Not his fault at all. Ill post a few updates here in a bit.
    Bedroom Stereo: Harman Kardon H/K 3490/DCM-CX27's (goodwill find)
    Computer Room: Yamaha HTR-5240 (goodwill find)/TSI100's (goodwill find)
    Theater: Harman Kardon AVR-254 (goodwill find)/Jamo S426 (fronts)/Speakercraft 6.1 LCR (center) (goodwill find)/Jamo S420 (rears)
    AVR-254 (Zone 2): Yamaha M-80/SDA-1C (pawn shop find)/Insignia NS-B2111 (craigslist find)
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  • boston1450
    boston1450 Posts: 7,638
    edited December 2013
    There are many of amps & receivers you can use with the SDA's & lot of folks on here to asst you if you need help. Make sure its a common ground amp. GLWSearch..
    ..
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  • JSGuru
    JSGuru Posts: 37
    Its been quite a while everyone! I didnt think this thread was still alive so I made a new one with quite the update to my adventure. Check it out.

    forum.polkaudio.com/discussion/164040/new-addition-to-this-beginners-collection#latest
    Bedroom Stereo: Harman Kardon H/K 3490/DCM-CX27's (goodwill find)
    Computer Room: Yamaha HTR-5240 (goodwill find)/TSI100's (goodwill find)
    Theater: Harman Kardon AVR-254 (goodwill find)/Jamo S426 (fronts)/Speakercraft 6.1 LCR (center) (goodwill find)/Jamo S420 (rears)
    AVR-254 (Zone 2): Yamaha M-80/SDA-1C (pawn shop find)/Insignia NS-B2111 (craigslist find)
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  • Mystery
    Mystery Posts: 2,546
    JSGuru wrote: »
    boston1450 wrote: »
    Attachment not found. i run my SDA1c on a Adcom gfa555 & it does a wonderful job. There are alot of people on CP that can direct you into the right direction. SDA 's are different than alot of speakers out there. Enjoy them :smile:

    Awesome! I'm glad to see someone else using a 555 to power some 1C's! would you say $200 is a fair price for a gfa555 in great physical and functional condition?

    I had GFA-555II that is now replaced by Rotel RB-990BX.
    I sold the GFA-555II for $350 so $200 for 555 sounds good.
    Even 545 brings that much sometimes.

    Klipsch RB81, KG3.5, B&W DM602.5, Polk.
    Subwoofers: Klipsch RW10, Triad ProSub Bronze.
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  • keck
    keck Posts: 36
    Hi, Mystery. I am currenly looking for 555II or 990BX. Understand you had tried both 555II and Rotel 990BX and you prefer 990BX over 555II. Can you share how is the sound of 990BX?
    A price of $350 for a mint 990BX worth it?
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  • VSAT88
    VSAT88 Posts: 1,257
    Those jokers are nice and even though I use SpeakOn Nutrik for my interconnect I think you did a kick @ job with the Nannars...You will do more, a lot more believe me you will...Welcome !!
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  • keck
    keck Posts: 36
    Hi, i have just purchased 2 x 970BX instead. I planning to bridged mono amp the SDA 2B, but i notice that some people said SDA 2B cant be bridged mono amp.

    Need advise, thanks :#
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  • pitdogg2
    pitdogg2 Posts: 25,441
    keck wrote: »
    Hi, i have just purchased 2 x 970BX instead. I planning to bridged mono amp the SDA 2B, but i notice that some people said SDA 2B cant be bridged mono amp.

    Need advise, thanks :#

    Do not do that. Two reasons SDA's need common ground with what you propose you do not have common ground any more.
    2. Bridged amps do not like to see lower than 8 ohm load. You are starting out with 6ohm and going lower. Plus bridged amps INCREASE the noise floor. If you are bound and determined to go this route you cannot use the interconnect cable, so you just lost what SDA's are all about.
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  • keck
    keck Posts: 36
    Thanks. Looks like i made a mistake to purchase g both 970BX for my SDA. Think i will just use them for my monitor 10B. Meanwhile will keep a look out for a higher power amp like BX990. :)
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