Phase Linear 400 w/ SDA-2's?

Gavin.Wright
Gavin.Wright Posts: 125
edited June 2011 in Vintage Speakers
So I have a chance to pickup a Phase Linear 400 (not sure what series yet) for about $100 tomorrow - I know the output section has been recently rebuilt and it is still in its original box.

Does anyone know if this is a good match for my SDA-2's or Dahlquist DQ-10's? Is the PL 400 even a common ground amp?

I'm looking to get something with more power than my current collection of integrated amps - see my signature. Any input would be appreciated. Thanks

-Gavin
Post edited by Gavin.Wright on
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  • Schurkey
    Schurkey Posts: 2,102
    edited June 2011
    http://www.polkaudio.com/forums/showthread.php?t=118739&highlight=Flame+Linear

    http://www.polkaudio.com/forums/showthread.php?t=36404&highlight=Flame+Linear
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  • read-alot
    read-alot Posts: 812
    edited June 2011
    Gavin.Wright wrote: »
    So I have a chance to pickup a Phase Linear 400 (not sure what series yet) for about $100 tomorrow - I know the output section has been recently rebuilt and it is still in its original box.

    Does anyone know if this is a good match for my SDA-2's or Dahlquist DQ-10's? Is the PL 400 even a common ground amp?

    I'm looking to get something with more power than my current collection of integrated amps - see my signature. Any input would be appreciated. Thanks

    -Gavin

    I ran a set of 2's with one, that's my post in the link five years ago, no problem.
    polkaudio SRS (rdo194 x 8)
    Dodd ELP (separate power supply)
    JC 1 blocks ( strapped )
    Rega Apollo
    MIT (speaker cables) Outlaw (ICs)

    polkaudio SDA2(rdo194x4) (front) polkaudio CRS (rdo194x4)(rear) polkaudio 400i (center)
    B&K 505
    Samsung LCD
    VIP 622
    HSU STF-2
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  • Gavin.Wright
    Gavin.Wright Posts: 125
    edited June 2011
    @ read-alot

    You were happy with the sound then? No overheating issues?
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  • read-alot
    read-alot Posts: 812
    edited June 2011
    Gavin.Wright wrote: »
    @ read-alot

    You were happy with the sound then? No overheating issues?

    Yes I was and if you don't plan on running it at high volume then you shouldn't have too much of a heat issue.

    I liked it enough to buy a spare and now you have me wanting to put that combination back together. :smile:
    polkaudio SRS (rdo194 x 8)
    Dodd ELP (separate power supply)
    JC 1 blocks ( strapped )
    Rega Apollo
    MIT (speaker cables) Outlaw (ICs)

    polkaudio SDA2(rdo194x4) (front) polkaudio CRS (rdo194x4)(rear) polkaudio 400i (center)
    B&K 505
    Samsung LCD
    VIP 622
    HSU STF-2
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  • stuwee
    stuwee Posts: 1,508
    edited June 2011
    I highly recommed you contact White Oak Audio, http://www.whiteoakaudio.com/ about the updates done on the 400 you're looking at, and just for general info, these folks are awesome, and really know the Phase Linear range. Enjoy!
    Thorens TD125MKII, SME3009,Shure V15/ Teac V-8000S, Denon DN-790R cass, Teac 3340 RtR decks, Onix CD2...Sumo Electra Plus pre>SAE A1001 amp>Martin Logan Summit's
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  • Gavin.Wright
    Gavin.Wright Posts: 125
    edited June 2011
    Wow - I will definitely check out White Oak Audio Design if I end up getting the PL 400 tomorrow. Is $100 a descent price if the amp is full functional? I've also heard of these amps failing and taking speakers with them - has anyone added protection circuitry to these amps? relays, fuses, etc?
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  • victor. askew
    victor. askew Posts: 50
    edited June 2011
    + 1 on adding the spkr protection circuit upgrade. I would also have new output devices installed at the same time of this upgrade is done I have owned 3 of these amps in the past and the output devices have failed on each one and it wasnt pretty. Things went south very very quickly. Destroyed both speakers each time. Inline fuses will protect your spkrs from ac over current( to much volume), when a Phase Linier goes south it discharges DC into your spkrs , the fuse will just sit there and ride it out. This upgrage will be worth the cost of installation if you buy it.. The amps sound great, need to keep it cool, upgrade it and you will have a good amp. Good luck:wink:
    Amps- Nakamichi PA 7 & PA 5.
    P Amp- Classie Audio. Nakamichi CA 5
    Tape- Tandberg 3014A.
    Tape- Nakamichi 600.
    CD Calif Audio Tercet 3.
    CD-Rotel 1078.
    Spkrs- Polk Audio RTI 150 Towers.
    Spkrs- ADS L1290 Towers.
    Spkrs- Yamaha- NS 670,NS 500m,NS 200m, NS 200ma
    NS 200ma hybrids.
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