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TRAM W.O.T

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Anyone heard it yet?
It looks very interesting,and I have read very much positive stuff about transformer coupling of different stages.Seems like transformers add some naturalness to the sound,or...?
Audio Note kits is also coming out with a kind of similar preamp with 5687 in the linestage,fed to a step down transformer.
Anyone heard the TRAM and also have heard some Audio Note products?

Follow Ups:

Re: TRAM W.O.T - Torfinn 14:37:59 11/05/05 (8)
Brian,
any data on gain and noise of this item?
- Re: TRAM W.O.T gain - Torfinn 06:13:06 11/06/05 (7)
  Found it.
  12db of gain.
  Any measurments of the noise?
  - Re: TRAM W.O.T gain - bcherry 18:38:17 11/06/05 (6)
    Torfinn
    We're getting about 0.2mv with the prebuilt units we're selling. You're right to be concerned about noise on W.O.T.linestage as there is the potential for more noise coupling throught he chassis and OPT/PTX. But the layout we've arrived at is very quiet.
    Brian
    Take control! DIY.
    - Re noise: Actually... - bcherry 22:04:37 11/06/05 (2)
      ...just measured a pair of built-up Trams and they are at about 0.1mv.
      Brian
      
      Take control! DIY.
      - For reference.... - Thorsten 12:18:34 11/08/05 (1)
        
        In Reply to: Re noise: Actually... posted by bcherry on November 6, 2005 at 22:04:37:
        
        Folks,
        To put this into context, 0.1mV is -80dbV, unweighted. Many of the Tube preamps measured by Stereophile do worse.
        With some A weighting I suspect that the noise will drop to < -90dbV.
        Brian, did you manage that with AC heaters or did you end up using DC Heaters?
        Ciao T
        
        Re: For reference.... - bcherry 02:31:04 11/09/05 (0)
        
        In Reply to: For reference.... posted by Thorsten on November 8, 2005 at 12:18:34:
        
        Thorsten:
        Done with AC heaters. We did have to tie the filament wires in a separate bundle from the other AC wires.
        BTW, the 6N12P is very much worthwhile and easy. Easy is good.
        Brian
        
        Take control! DIY.
    - Another way to take the Tram - bcherry 22:02:13 11/06/05 (2)
      This is built with the 6N12 - octal almost-equivalent to the 5687, so only the pinout needs to be changed. The 6N12 is another of the fast-disappearing treasures from the Chinese military. Internal structure is really robust with bowed black plates.
      Sounds: just fired up, but I like it.
      Brian
      Take control! DIY.
      - Re: Another way to take the Tram - Torfinn 13:35:38 11/07/05 (1)
        
        In Reply to: Another way to take the Tram posted by bcherry on November 6, 2005 at 22:02:13:
        
        Any chance of having a remote on the volume of the TRAM (and still use the PEC pot)?
        Since my Joplin has been away for "holiday" for a month I have been used to remote again (with another amp) and it is really not so easy going back again.....
        Btw. Another solution could be moving the turntable, riaa and linestage, but then I would need loooong interconnects (about 10m).
        What interconnects do you recommend for such distances Brian?
        
        Re: Another way to take the Tram - bcherry 23:25:13 11/09/05 (0)
        
        In Reply to: Re: Another way to take the Tram posted by Torfinn on November 7, 2005 at 13:35:38:
        
        Torfinn
        Remote, maybe at some future time. No chance with the PEC though.
        No idea what IC are best for longish lengths. The longest I use are 2m and the Gotham GAC is great.
        Maybe some other long-ic-users could contribute something here.
        At the RMAF Bill Allen used long Bastani IC and they seem to work OK.
        Brian
        Take control! DIY.
Heard it at RMAF... - Ivan303 11:58:07 10/31/05 (0)
Exactly what I want in an active preamp.
Rock Solid tube regulated power supply.
Good sounding tubes (5687 might be the BEST sounding 9 pin tube one could choose for a line stage)
Transformer output. Capable of driving long inter-connects.
Headphone output is a BONUS

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