New Member/Owner of 2.3tls

dracoskeeper
dracoskeeper Posts: 142
edited October 2008 in Vintage Speakers
I just made the move back to separates in my theater and while picking up some other speakers locally the owner had a pristine set of 1.2tls in his theater. I never should have asked to hear them! My God I have never been blown away by a pair of speakers like that! I barely made it home before getting on google and finding out as much as I could on these. My system with Energy auddissey 5.2 would never sound the same. Well it took a little over a month to luckily find a pair of original owner 2.3tls that literally haven't been moved since 91'. I plan on bi-amping them with a Adcom 5503 for high's and a 5800 for low's, I already made a custom interconnect for them since they are over 20' apart (the only way they can go in my living room) and will definitely do the crossovers soon. Is there any foreseen problems with my amp setup? any advice would be great!
Post edited by dracoskeeper on

Comments

  • F1nut
    F1nut Posts: 50,735
    edited October 2008
    20 feet apart is going to be a problem.
    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

  • dracoskeeper
    dracoskeeper Posts: 142
    edited October 2008
    I realize that, is it correct that they should be about 10' apart? I have two doorways-one on each side of a fireplace,and inside of those where they should go are the only heat vents for this room which are 44" high. The main thing I want to confirm before bi-amping is that there will be no sda issues i.e. the 5503 is 200 watts @29 db gain and the 5800 is 250 watts @ 29 db gain. I may build a custom deflector for heat/ac ducts but I plan on moving if this economy ever recovers and building a real theater/listening room.
  • F1nut
    F1nut Posts: 50,735
    edited October 2008
    The recommended spacing is 6 to 8 feet apart, but part of that depends on your listening position. Did you get the owner's manual?

    The gain is the same, so no problems there. The amp feeding the lows must be common ground.
    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

  • heiney9
    heiney9 Posts: 25,204
    edited October 2008
    The 5800 is not common ground and I would guess (better to call Adcom) that the 5503 is the same. Not sure if bi-amping them gets around the common ground issue or not, probably not.

    Check with Adcom but I'm pretty sure the neg terminals on the 5800 can be tied together to make it common ground. Have no idea on the multi-channel 5503.

    H9

    EDIT: If the 5503 is being used for the tweets only (what are you using the 3rd channel for?) it doesn't need to be common ground. The 5800 if it's driving the mid woofers does.
    "Appreciation of audio is a completely subjective human experience. Measurements can provide a measure of insight, but are no substitute for human judgment. Why are we looking to reduce a subjective experience to objective criteria anyway? The subtleties of music and audio reproduction are for those who appreciate it. Differentiation by numbers is for those who do not".--Nelson Pass Pass Labs XA25 | EE Avant Pre | EE Mini Max Supreme DAC | MIT Shotgun S1 | Pangea AC14SE MKII | Legend L600 | BlueSound Node 3 - Tubes add soul!
  • dracoskeeper
    dracoskeeper Posts: 142
    edited October 2008
    I was using the 5503 for my center channel also,are you saying that the 5800 must be common ground but the 5503 does not have to because its only driving the tweeters.I also have a 5500 but it has a 27 db gain, I was debating on using it with the Energy 5.2 for the rears. I will get back with Adcom about the ground issue because Stan @ Adcom recommended the 5800 to go with the 5503.Thx again.
  • F1nut
    F1nut Posts: 50,735
    edited October 2008
    The amp driving the low frequencies must be common ground. The amp driving the high frequencies does not.
    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

  • dracoskeeper
    dracoskeeper Posts: 142
    edited October 2008
    So I should just be able to make a jumper from each output neg. to make them common? I did test them with my fluke (power off-speakers disconnected) and I get .03ohm so I'm a little lost that they are not already common. I will open the 5800 tomorrow and trace the grounds.
  • heiney9
    heiney9 Posts: 25,204
    edited October 2008
    So I should just be able to make a jumper from each output neg. to make them common? I did test them with my fluke (power off-speakers disconnected) and I get .03ohm so I'm a little lost that they are not already common. I will open the 5800 tomorrow and trace the grounds.

    The search feature is your friend. This has been discussed numerous times.

    Here you go:

    Read the whole thread; especially posts 21, 22, 23 and follow the link in #23.

    http://www.polkaudio.com/forums/showthread.php?t=72787&highlight=5802

    Topology's of the 5800 and 5802 are extremely similar but the link in post 23 talks about the 5800 specifically from a former Adcom service tech or 2.

    H9
    "Appreciation of audio is a completely subjective human experience. Measurements can provide a measure of insight, but are no substitute for human judgment. Why are we looking to reduce a subjective experience to objective criteria anyway? The subtleties of music and audio reproduction are for those who appreciate it. Differentiation by numbers is for those who do not".--Nelson Pass Pass Labs XA25 | EE Avant Pre | EE Mini Max Supreme DAC | MIT Shotgun S1 | Pangea AC14SE MKII | Legend L600 | BlueSound Node 3 - Tubes add soul!
  • dracoskeeper
    dracoskeeper Posts: 142
    edited October 2008
    Thx heiney9, I did read all those just didn't get far enough in the linked one. I made jumpers out of some 10 gauge wire last nite, I'll finish up tonite and let you know how it all works out.I also think I'll go ahead and move/redirect duct work and put these beasts the proper distance apart.Now if I can only figure out how to stop my male bulldogge (Draco) from using these as the world most attractive fire hydrant!
  • heiney9
    heiney9 Posts: 25,204
    edited October 2008
    Cool! I think you'll get more enjoyment from the SDA's if properly set-up. 20 feet is really too far apart to get the best out of them.
    "Appreciation of audio is a completely subjective human experience. Measurements can provide a measure of insight, but are no substitute for human judgment. Why are we looking to reduce a subjective experience to objective criteria anyway? The subtleties of music and audio reproduction are for those who appreciate it. Differentiation by numbers is for those who do not".--Nelson Pass Pass Labs XA25 | EE Avant Pre | EE Mini Max Supreme DAC | MIT Shotgun S1 | Pangea AC14SE MKII | Legend L600 | BlueSound Node 3 - Tubes add soul!
  • heiney9
    heiney9 Posts: 25,204
    edited October 2008
    Lasareath wrote: »
    Should he strap the chassis also?, I know Joe did it that way

    Yep Las, we got him covered seven ways to Sunday. ;)
    "Appreciation of audio is a completely subjective human experience. Measurements can provide a measure of insight, but are no substitute for human judgment. Why are we looking to reduce a subjective experience to objective criteria anyway? The subtleties of music and audio reproduction are for those who appreciate it. Differentiation by numbers is for those who do not".--Nelson Pass Pass Labs XA25 | EE Avant Pre | EE Mini Max Supreme DAC | MIT Shotgun S1 | Pangea AC14SE MKII | Legend L600 | BlueSound Node 3 - Tubes add soul!