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  1. #1
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    Fuses in Lumins?

    I've been reading about after market fuses being used in CD players among other things and was wondering if our Lumin products could benefit from them? I don't really know if they even have fuses in them.
    Mark


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  2. #2
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    Re: Fuses in Lumins?

    Good question Mark..I would think your A1 and S1 standalone supply has a fuse and you would think the D1 Lumin's had a fuse near the AC circuit.
    PassXa-30.5, W4S STP, Kef 201/2, KEF 140, Vapor Breeze, Lumin, Bryston CD, BHA-1, HD650, HD800s, Dan Clark 1.1, OPPO 203, 105.

  3. #3
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    Re: Fuses in Lumins?

    Hmmm...where might the fuse be?


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  4. #4
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    Re: Fuses in Lumins?

    Must be internal.
    Jock

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  5. #5
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    Re: Fuses in Lumins?

    Anyone know the fuse size in psu on Lumin U1 ?

  6. #6
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    Re: Fuses in Lumins?

    Welcome terryakhan
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  7. #7
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    Re: Fuses in Lumins?

    If you go inside, don't you void the warranty?

  8. #8
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    Re: Fuses in Lumins?

    Quote Originally Posted by GSOphile View Post
    If you go inside, don't you void the warranty?
    From the Lumin US distributor's website:

    Lumin in the USA or Source Systems, Ltd, in the USA will not service product under warranty that have been opened by end-users, modified or altered. Modifying products immediately voids all warranties from Lumin in the USA.

    IMPORTANT INFORMATION ON MODIFIED PRODUCTS!
    Products modified (or “Modded”) by third party companies render Lumin products unserviceable by us.
    Modifying products immediately voids all warranties from Lumin in the USA. More importantly, since we do not know what these “mods” are, how they affect other circuits within the Lumin product and most importantly, affect the timing and control functions within the product, we are not able, at any cost, to repair a modified Lumin product. Modified products should be returned to the modifier or upon prior approval, the overseas factory for service if and only if there is direct factory approval for such return.

  9. #9
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    Re: Fuses in Lumins?

    For X1, T2, S1, D2, U1, U1 MINI you can find the fuse at the back of the unit/power supply right next to the IEC socket.

    A.

    LUMIN / WestminsterLab

  10. #10
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    Re: Fuses in Lumins?

    Quote Originally Posted by terryakhan View Post
    Anyone know the fuse size in psu on Lumin U1 ?
    Believe Peter answered that in another thread - 2A fast blow
    Main System - Lumin U1, Modwright LS36.5 DM Preamp, EVS 1200 Amp, EMM Labs DAC 2X (ver. 2), Torus RM-20, Thiel CS 3.7s, 2 Rel Storm III subs
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  11. #11
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    Re: Fuses in Lumins?

    Yes 2A fast blow for U1 / S1 / X1. Not applicable to M1.
    Peter Lie
    LUMIN Firmware Lead

  12. #12
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    Re: Fuses in Lumins?

    How about for the D2? What type of fuse does it use? Out of curiosity does changing fuse make a big improvement on sound quality?

  13. #13
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    Re: Fuses in Lumins?

    Welcome to the forum

    Quote Originally Posted by hatateru View Post
    How about for the D2? What type of fuse does it use? Out of curiosity does changing fuse make a big improvement on sound quality?
    Franco Serblin Accordo Essence (on order), Vienna Acoustics Haydn Jubilee, Wharfedale Linton w/ stands, Klipsch RB-75, Klipsch RP-160M.

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    Conrad Johnson GAT2, Misho Myronov Wooden preamp.

    Misho Myronov Wooden amp (for sale), First Watt SIT-3, Job 250 Monos, NuForce STA200, AkitikA GT-102 amp, ASL Wave monos, Dennis Had 45 monos. Absolute Audio Labs PCF 25 amp (improved First Watt F7 super clone)

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  14. #14
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    Re: Fuses in Lumins?

    Quote Originally Posted by hatateru View Post
    How about for the D2? What type of fuse does it use?
    2A fast blow.
    Peter Lie
    LUMIN Firmware Lead

  15. #15
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    Re: Fuses in Lumins?

    Quote Originally Posted by wklie View Post
    2A fast blow.
    May I know what's the size of the fuse and is it a must for fast blow? some fuses mention slow blow, those can't be use right?

  16. #16
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    Re: Fuses in Lumins?

    5x20mm.

    It'll be functional, as for whether it is less protective in case of surge, I don't have the expertise to answer that.
    Peter Lie
    LUMIN Firmware Lead

  17. #17
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    Re: Fuses in Lumins?

    Hi peter,

    any experience with after market fuses like SR blue, etc? Do that make a difference to the already great PS. FYI, I am using the X1 PS for my U1.

    thanks

    sujay

  18. #18
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    Re: Fuses in Lumins?

    I'll leave this question on experience on fuses to other users.
    Peter Lie
    LUMIN Firmware Lead

  19. #19
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    Re: Fuses in Lumins?

    Quote Originally Posted by Sujay View Post
    Hi peter,

    any experience with after market fuses like SR blue, etc? Do that make a difference to the already great PS. FYI, I am using the X1 PS for my U1.

    thanks

    sujay
    I put a Blue fuse in my Lumin U1 power supply (within the past year) and noticed a difference right away vs. the standard fuse. I have not tried any other fuses.
    Main System - Lumin U1, Modwright LS36.5 DM Preamp, EVS 1200 Amp, EMM Labs DAC 2X (ver. 2), Torus RM-20, Thiel CS 3.7s, 2 Rel Storm III subs
    Back-up 1 - Hegel H190 Integrated Amp/DAC, Oppo 103D, 2 Richard Gray cond, Ohm Microwalsh Talls, Rel Strata III sub
    Back-up 2 - Sherbourn Pre-1, Mivera PurePowerSE Amp, Panasonic DP-UB9000, Vansevers cond, B&W P6s, Sumiko S.5 sub

  20. #20
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    Re: Fuses in Lumins?

    Thanks Phil. That’s very helpful.

  21. #21

    Re: Fuses in Lumins?

    Hi guys

    I really need your help
    Can you tell me How to get the top lid of at my A1 psu? (I want to change the fuse).
    I can’t find anything online and I then I tried to remove the four screws in the back and further more the two holding the coils in place, and now the coils are loose but still not the lid. It looks like it must be moved backwards but I can’t move the damn thing?

    Kind regards
    Thomas
    Last edited by Ttl; April 18, 2021 at 02:22 PM. Reason: New thoughts

  22. #22
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    Re: Fuses in Lumins?

    I would make sure you can get your money back if you find no difference or degradation in the sound quality after changing to a boutique fuse.
    Tom

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  23. #23
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    Re: Fuses in Lumins?

    Thomas, check PM.
    Peter Lie
    LUMIN Firmware Lead

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