John V

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Viewing 15 posts - 1 through 15 (of 48 total)
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  • in reply to: Archival Posts from the Former Forum? #1226
    John V
    Participant

    Hi Max,

    I posted about this 7 months ago, here’s the link:

    SLOG archives, Looking For a Programmer

    If you’re interested contact me off list as noted in the post.

    Thanks,
    John

    in reply to: spitting issue with my sound lab 945 px #1211
    John V
    Participant

    One other question, does the “spitting/arcing” occur without music playing? If so, this could be caused by dust or particulates trapped between the stator and membrane, it can also manifest itself in form of whistling, buzzing. Generally, this resolves itself on its own. I have experienced this with earlier panel versions although, so far, not with my current Bass Focus 845PX’s.

    Another thought, does the music your currently playing contain greater bass energy than that played in the past? If that is the case you might have reached the panels output limits.

    Anyhow, I’m only throwing out a few ideas. There may actually be an issue with the panels. That said, the PX panels, as I’m sure Tom will agree, have been the most
    reliable of any produced in Soundlab’s history.

    in reply to: U-1PX #1133
    John V
    Participant

    Hi Tom,

    Congrats on your new 845 panels.

    I did the same when i upgraded my U790’s.

    One thing I did for my frames, and you might consider for yourself, is to have a set of extensions made by Roger’s frame fabricator so the frames now match the height of the new panels.

    The extensions have a slotted inner tube that slides into the open top of the frame and neatly finishes the look. The extensions were unpainted when I received them and i had an auto body shop paint them to match the existing finish.

    Attached are a few pictures along with Roger’s diagram showing their construction.

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    in reply to: Thanks! #1113
    John V
    Participant

    Hi,
    I’m glad to hear someone else was having a problem, I thought I was only me.
    I couldn’t get into the site on 2/23 so I contacted Mark Gilmore, site owner, who responded he was not having a problem. At that point I tried to enter again and was able to do so without issue.

    Mark then checked the log files and found anything awry, so he wrote it off to a possible routing issue. Go figure.

    John

    in reply to: Virtual Factory Tour? #1081
    John V
    Participant

    Hi Ralph,

    Glad to able to once again participate in the discussions here.
    To add a bit to your comments, I was also with you at the Chicago Audio Meeting back in 2006. It was great to meet and spend time with Connie and Roger, first at Brian Walsh’s place, later at dinner that Saturday evening and the following day at the actual meeting. Here are a few pictures from that event.

    The first few pictures show a number of attendees, SLOG members, assisting Roger in setting up a pair of M945’s hours prior to the start of the meeting.
    The last pix. is of Roger and Connie.
    Also, Richard Schramm of Parasound was also in attendance.

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    in reply to: Experience with amplifiers and Sound Lab speakers #1011
    John V
    Participant

    @chungjh

    The factory does offer a bi-amp option.
    Your current backplates can be retrofitted if desired.
    I would email Roger for instructions. If your a bit handy
    it’s actually fairly easy to do yourself. I did this
    myself for my U890’s

    John

    in reply to: Pristine II restoration #805
    John V
    Participant

    The diffusion ring consists of copper foil that runs around the perimeter of the panel

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    in reply to: Schematics for AU90 transformer modification #790
    John V
    Participant

    Hi Ezequiel64,

    Could you take a picture of the underside of your backplates?
    I’m curious as to how it compares with the backplates for the full
    range SL ESL’s.

    in reply to: Schematics for AU90 transformer modification #786
    John V
    Participant

    Aside from the turns ratio I’m not aware that any other specs for the AU90 were ever available.
    I would contact Rob Mackinlay of ER Audio to see if can supply any
    specs. Also, if enough people have an interest maybe Rob would consider doing another run of transformers.

    http://www.eraudio.com.au/index.html

    in reply to: Atma-Sphere MA1 3.2 vs Pass XA60.8 amp #695
    John V
    Participant

    Hi lotus123,

    The rear speakers look like Acoustats to me. Maybe he is running them as surrounds.

    Lovely room and system, I like the custom grille color and finish.

    in reply to: Two blown fuses in one day #676
    John V
    Participant

    I’m currently in the process of updating my system. For years I’ve used a Crown Macro and Tact 2.2xp. The Crown, not well regarded in the
    High End, but worked well for me over the years.
    Anyhow, I’m waiting for a pair of Atma Sphere MA-2’s to be returned from AM for some cosmetic upgrades. As to the pre amp, I just received
    a used Anthem STR.
    CD/Streamer is next, not sure what I’ll get there.
    As to vinyl, I have a Goldmund Reference Turntable that I recently refurbed.

    in reply to: Two blown fuses in one day #674
    John V
    Participant

    Got it, I misread your post. Sorry. It does sound like clipping.
    The CLX may be easier to drive than your SL’s. Its also hard to compare your CJ to an OTL amplifier like the MA1.

    I ran into a similar situation at one point. I bought a pair of Mac
    MK1.2Kw monoblocks, they would not drive my U1’s without clipping.
    I guess the Macs couldn’t handle the rising impedance of the SL’s
    so I sold them and moved on.

    in reply to: Two blown fuses in one day #671
    John V
    Participant

    Is the other panel operating properly? If so I would try swapping backplates to try and determine it the issue is with the panel or the backplate.

    in reply to: Two blown fuses in one day #669
    John V
    Participant

    When you turn up the bias can you get to a point where the panel crackles?

    in reply to: Two blown fuses in one day #652
    John V
    Participant

    Was the response to you from Dr. West within the past few days?

    Thx,
    John

Viewing 15 posts - 1 through 15 (of 48 total)