Upgrade for Joule Electra LA-100

I have been lurking here for the wealth of information about Joule Electra products, so I finally joined. I am the second owner of the the original version of the LA-100 (S/N 041). This has dual balance controls and no remote volume. I’ve had it since 2010. I inquired about possible upgrades and was told that there is no upgrade path for this model. Now that Jud has retired and shut down the factory, I thought I would check here to see what others have done with this preamp. I have replaced all the tubes and it works perfectly. I have heard that it isn’t too hard to fit a motorized volume pot to this one. I would look into that, and any other mods, but I thought I’d check here to learn if maybe I’d be better off trading up. Any thoughts?

Mike
Thorens TD-160C; Sumiko Talisman S; Jolida JD9; Marantz CD-53; North Star Intenso;
Joule-Electra LA-100; Balanced Power Technology AC conditioner;
Odyssey Khartago monos (with most factory upgrades); Magnepan MG 3.6R

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Answers

  • maxwardmaxward Posts: 311
    Thanks, F1. I recently bought a pair of OA-2 tubes from Rich. Took care of an intermittent dropout of the left channel. He said he cannot remember the last original LA-100 that came into his shop. Also didn’t share any ideas regarding upgrades, other than tubes. I like the sound of this preamp and it blew away my prior one when I put it in, so maybe if it ain’t broke... I seem to recall a post stating that a motorized pot from Bent Audio would work. Thanks again.
    Thorens TD-160C; Sumiko Talisman S; Jolida JD9; Marantz CD-53; North Star Intenso;
    Joule-Electra LA-100; Balanced Power Technology AC conditioner;
    Odyssey Khartago monos (with most factory upgrades); Magnepan MG 3.6R
  • maxwardmaxward Posts: 311
    Thanks, tonyb. No mods done to yours?

    Mike
    Thorens TD-160C; Sumiko Talisman S; Jolida JD9; Marantz CD-53; North Star Intenso;
    Joule-Electra LA-100; Balanced Power Technology AC conditioner;
    Odyssey Khartago monos (with most factory upgrades); Magnepan MG 3.6R
  • F1nutF1nut Posts: 41,555
    Ha, I've still got a boxes of OA2's and 13EM7's (which Jud used at times instead of the 6EM7) around here. None of those tubes are hard to find, they are old radio tubes. Be aware, the OA2 has radioactive gas inside, so don't break one.

    You might get John at Bent to sell you a kit, but he generally doesn't offer them anymore. I can tell you this, it would be considerably better than what Jud used.
    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."


  • F1nutF1nut Posts: 41,555
    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."


  • maxwardmaxward Posts: 311
    Thanks. It looks good. I was thinking of selling to buy a Schiit Freya to get a remote, but I’m concerned that the SQ wouldn’t be there. May give this a try.
    Thorens TD-160C; Sumiko Talisman S; Jolida JD9; Marantz CD-53; North Star Intenso;
    Joule-Electra LA-100; Balanced Power Technology AC conditioner;
    Odyssey Khartago monos (with most factory upgrades); Magnepan MG 3.6R
  • kharp1kharp1 Posts: 2,864
    I recently modded my Joule with a Butler 2250 amp and was amazed at the way the soundstage grew.
    Main System:
    Joule-Electra LA 100 MKIII
    Pass Labs Aleph 30, McCormack DNA-125, Parasound A21
    Marantz SA-14S1
    Usher CP-6311/Tyler Acoustics Taylo Reference Monitor, LSA-1
    Dual SVS SB2000
    Wireworld Equinox 7 bi-wire, Wireworld Silver Eclipse 7 IC

    Secondary Rig:
    Parasound P5, Audio Electronics by Cary Constellation
    Marsh a200s, Audio Elecrtonics by Cary Hercules
    Pioneer Elite DV-45a, Denon DVD-2910
    Klipsch Epic CF-1, Vandersteen 3CE sig
    Analysus Plus Oval

  • maxwardmaxward Posts: 311
    I understand the Butler is a great amp.
    Thorens TD-160C; Sumiko Talisman S; Jolida JD9; Marantz CD-53; North Star Intenso;
    Joule-Electra LA-100; Balanced Power Technology AC conditioner;
    Odyssey Khartago monos (with most factory upgrades); Magnepan MG 3.6R
  • tonybtonyb Posts: 30,901
    kharp1 wrote: »
    I recently modded my Joule with a Butler 2250 amp and was amazed at the way the soundstage grew.

    LMAO...told ya bro, great match.

    No, no mods to my Joule, just a fresh re tube in all positions. I have nos. rca's in there from Brent Jesse.
    HT SYSTEM-2 channel
    Sony 850c 4k
    Pioneer elite vhx 21
    Sony 4k BRP
    SVS SB-2000
    Dynaudio Audience 72
    Polk FX500 surrounds
    Cary xciter dac
    Cullen modded Sonos
    Joule la-100 pre
    B&k Ref 4420 amp

    Cables-
    Acoustic zen Satori speaker cables
    Acoustic zen Matrix 2 IC's
    Analysis plus crystal oval ic's
    Wireworld eclipse 7 ic's
    Audio metallurgy ga-o digital cable

    Kitchen

    Sonos zp90
    B&k 1430
    Tad 803 speakers
  • joosoofjoosoof Posts: 2
    I bought a used LA-100.
    The owner told me that the gain is not a volume, but it is a 2-way switch to set low and high gain.
    I have seen some videos online that the user was controlling the volume via the gain knob.
    On mine, it just clicks in 2 positions.
    Do you know if it is supposed to be a potentiometer or a 2-way switch?
    Thanks,
    Yu
  • WagnerRCWagnerRC Posts: 1,856
    This link should help, https://sigsound.com/classic-product-info/joule-electra-info-page/

    the gain as I remember it is a pot.
  • kharp1kharp1 Posts: 2,864
    Mine is a mkiii and it has no gain control on the front panel. There is a gain jumper inside mine...the top has to be removed.
    Main System:
    Joule-Electra LA 100 MKIII
    Pass Labs Aleph 30, McCormack DNA-125, Parasound A21
    Marantz SA-14S1
    Usher CP-6311/Tyler Acoustics Taylo Reference Monitor, LSA-1
    Dual SVS SB2000
    Wireworld Equinox 7 bi-wire, Wireworld Silver Eclipse 7 IC

    Secondary Rig:
    Parasound P5, Audio Electronics by Cary Constellation
    Marsh a200s, Audio Elecrtonics by Cary Hercules
    Pioneer Elite DV-45a, Denon DVD-2910
    Klipsch Epic CF-1, Vandersteen 3CE sig
    Analysus Plus Oval

  • WagnerRCWagnerRC Posts: 1,856
    kh6tl0bwwi0o.jpg


    I found this
  • verbverb Posts: 6,025
    Following this thread! :wink:
    Basement: Polk SDA SRS, Cary SLP-05 Pre, Enlightened Audio Designs CD Transport, Northstar Designs Excelsio DAC, Silnote Morpheus Ref2 Digital Cable, Marantz SA-14 SACD, McIntosh MC300 Amp, Furman 15PFi Power Conditioner, Pangea Power Cables, Wireworld Oasis 8 RCA IC's, MIT Shotgun S3 IC's, MIT Shotgun S1 Bi-Wire speaker cables
    Office: PC, Marantz CD-1, Marantz AMP-1, Denon UDR-F10 Cassette, Acoustic Technologies Classic Speakers, SVS SB12 Plus Subwoofer, MIT AVt2 speaker cables, IFI Purifier2, AQ Cinnamon USB cable, Groneberg Quatro Reference IC's
    Spare Room: , Antique Sound Labs Wave AV-8 Monoblocks, Tisbury Mini Passive Pre, Tjoeb 99 tube CD player (modified Marantz CD-38), Analysis Plus Oval 9's, Zu Jumpers, AudioEngine B1 Streamer, Klipsch RB-61 v2, SVS PB1000 su, Blue Jeans RCA IC's
    Living Room: Pioneer SX-N30 Network Receiver, Pioneer PD10AE CD Player, Furman M8-LX Power Conditioner, Polk RT265 In Wall Speakers, Polk DSW Pro 660wi Subwoofer
  • kharp1kharp1 Posts: 2,864
    verb wrote: »
    Following this thread! :wink:

    You'll follow anything because you're a junkie :)
    Main System:
    Joule-Electra LA 100 MKIII
    Pass Labs Aleph 30, McCormack DNA-125, Parasound A21
    Marantz SA-14S1
    Usher CP-6311/Tyler Acoustics Taylo Reference Monitor, LSA-1
    Dual SVS SB2000
    Wireworld Equinox 7 bi-wire, Wireworld Silver Eclipse 7 IC

    Secondary Rig:
    Parasound P5, Audio Electronics by Cary Constellation
    Marsh a200s, Audio Elecrtonics by Cary Hercules
    Pioneer Elite DV-45a, Denon DVD-2910
    Klipsch Epic CF-1, Vandersteen 3CE sig
    Analysus Plus Oval

  • maxwardmaxward Posts: 311
    I learned something today....don’t ask a question. Lots of emails showed up.
    Thorens TD-160C; Sumiko Talisman S; Jolida JD9; Marantz CD-53; North Star Intenso;
    Joule-Electra LA-100; Balanced Power Technology AC conditioner;
    Odyssey Khartago monos (with most factory upgrades); Magnepan MG 3.6R
  • kharp1kharp1 Posts: 2,864
    maxward wrote: »
    I learned something today....don’t ask a question. Lots of emails showed up.

    Just go in to the settings and change your notifications. Problem solved.
    Main System:
    Joule-Electra LA 100 MKIII
    Pass Labs Aleph 30, McCormack DNA-125, Parasound A21
    Marantz SA-14S1
    Usher CP-6311/Tyler Acoustics Taylo Reference Monitor, LSA-1
    Dual SVS SB2000
    Wireworld Equinox 7 bi-wire, Wireworld Silver Eclipse 7 IC

    Secondary Rig:
    Parasound P5, Audio Electronics by Cary Constellation
    Marsh a200s, Audio Elecrtonics by Cary Hercules
    Pioneer Elite DV-45a, Denon DVD-2910
    Klipsch Epic CF-1, Vandersteen 3CE sig
    Analysus Plus Oval

  • maxwardmaxward Posts: 311
    Thank yewww! I’m wondering if @joosoof is getting his question answered.
    Thorens TD-160C; Sumiko Talisman S; Jolida JD9; Marantz CD-53; North Star Intenso;
    Joule-Electra LA-100; Balanced Power Technology AC conditioner;
    Odyssey Khartago monos (with most factory upgrades); Magnepan MG 3.6R
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