The Dared SL 2000 modification thread

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  • mfg
    mfg Posts: 17
    edited May 2012
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    Yes, H9, using the proper tubes and I'm not at all offended at the question. I'm feeling my way into the electronics side of this hi-fi hobby, which is one of the reasons I found this thread and others so interesting and helpful. I suppose I'll put a meter probe on either side of the caps and see what happens (Ha! That's what I mean by feeling my way into this. Although I know enough not to have gotten blasted yet.) I'm the second owner, located in Ithaca. There's a man here who has worked on tube audio for years, and I think between his knowledge, the simplicity of the unit, and the availability of the schematics, he should do okay with it. And if I can troubleshoot/diagnose a little, it may be a less costly affair.

    Thanks so much for the info on the tubes. Once I get this thing working again, I will definitely contact you about your hoard!

    I may be away from the internet for a couple of days, but I'd be happy to send my copy of the schematics to anyone who needs it. I'm still under the required number of posts to message members, but I can email through the forum. If you want to send me your email address that way, then I'll have yours and will send you the schematics as an attachment in the reply (I sent a similar message to George).

    Thanks again.

    -Matt.
    -Matt
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  • george daniel
    george daniel Posts: 12,096
    edited May 2012
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    Matt,, I used Russian teflons (where your Auricaps are,,,mine did not have the Auricap's),,,the 4 big a$$ yellow caps were changed in mine(profanity involved) with Obligatto's, I was fortunate to get a Brimar rectifier(H9's suggestion) and some Syl signal tubes,,,currently I have some Mullards (thank you dr R) in place of the sylvanias,,,I am very happy with mine,and I think that you'll be hard pressed to better it for the monies spent,,YMMV.The Dared does respond very well to tube rolling,,so,, follow the advice given you and I think that you will be a happy camper.Good luck and have fun.
    JC approves....he told me so. (F-1 nut)
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  • mfg
    mfg Posts: 17
    edited May 2012
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    Thanks for the information, George. I'm ready to roll up my sleeves, and ground myself. Looking forward to posting a success story.

    -Matt.
    -Matt
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  • heiney9
    heiney9 Posts: 25,710
    edited May 2012
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    mfg wrote: »
    Thanks for the information, George. I'm ready to roll up my sleeves, and ground myself. Looking forward to posting a success story.

    -Matt.

    Take lots of photo's and document everything real well, it helps for future DIYer's. Have fun

    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 | Galion TS P75 Pre | Holo Audio Cyan 2 Dac | MIT Shotgun S1 | Puritan Audio PSM136 Pwr Condtioner & Classic PC's | Legend L600 | Roon Nucleus 1 w/LPS - Tubes add soul!
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  • chumlie
    chumlie Posts: 8,658
    edited June 2012
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    daubyPaky wrote: »
    Le cochon rentre alors profiter des grosses seins ?normes d f?vrier par admin .Vue fois mature aux blastbs punbb sesp rez de mamelles jeune avril air tous les .
    Vues fois une jeune **** tube e longuement on certaine attention pour des gouts classiques .
    Vues fois gang bang sexy du mai licatesse alors le qui est visiblement un commentaire plan de m pour .

    you and your twin are quick lil spammers
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  • mfg
    mfg Posts: 17
    edited June 2012
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    Brock and George, it turned out to be a bad 47k resistor in the right channel circuit. I wound up bringing it in to the HiFi shop, and the owner (a wonderful guy trained as a technician way back in the day) was intrigued by the unit, and offered to do the job for less than the bench fee. The tough location of the resistor combined with his vastly superior skills made this an offer I couldn't refuse.

    Brock, now that I'm back in business, I'd love to take you up on your offer to help me with some tube rolling. I'll send you an email.

    Much thanks to you both!

    -Matt
    -Matt
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  • nspindel
    nspindel Posts: 5,343
    edited August 2012
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    Question - are there any upgrade opportunities on this piece other than the caps and tube rolling? Any benefit to doing resistor upgrades? What about the pot? Just wondering if anyone's done any investigation....
    Good music, a good source, and good power can make SDA's sing. Tubes make them dance.
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  • heiney9
    heiney9 Posts: 25,710
    edited August 2012
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    nspindel wrote: »
    Question - are there any upgrade opportunities on this piece other than the caps and tube rolling? Any benefit to doing resistor upgrades? What about the pot? Just wondering if anyone's done any investigation....

    IMO, you have to be pretty adept at electronics to do much beyond the cap upgrade and even then George had to run leads and mount elsewhere in the chassis. There is little to no room for much else. The vol control is the typical nicer ALPS, but of you went with something more esoteric I'm not sure it would fit.

    The Auricap input coupling cap upgrade is doable without too much fuss. Beyond that you'd need to do some re-engineering for much else.

    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 | Galion TS P75 Pre | Holo Audio Cyan 2 Dac | MIT Shotgun S1 | Puritan Audio PSM136 Pwr Condtioner & Classic PC's | Legend L600 | Roon Nucleus 1 w/LPS - Tubes add soul!
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  • nspindel
    nspindel Posts: 5,343
    edited August 2012
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    Ok, didn't realize they used a decent Alps pot, that's good to know. Brock, can you send me that schematic?
    Good music, a good source, and good power can make SDA's sing. Tubes make them dance.
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  • heiney9
    heiney9 Posts: 25,710
    edited August 2012
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    nspindel wrote: »
    Ok, didn't realize they used a decent Alps pot, that's good to know. Brock, can you send me that schematic?

    I have it at home, but I will send it to you.
    "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 | Galion TS P75 Pre | Holo Audio Cyan 2 Dac | MIT Shotgun S1 | Puritan Audio PSM136 Pwr Condtioner & Classic PC's | Legend L600 | Roon Nucleus 1 w/LPS - Tubes add soul!
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  • nspindel
    nspindel Posts: 5,343
    edited August 2012
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    Thanks!
    Good music, a good source, and good power can make SDA's sing. Tubes make them dance.
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  • nspindel
    nspindel Posts: 5,343
    edited August 2012
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    Actually, probably a bad idea to go anywhere near the pot. There's a remote control for the volume, which means there's a little motor that wants to be left alone....
    Good music, a good source, and good power can make SDA's sing. Tubes make them dance.
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  • WarriorAnt
    WarriorAnt Posts: 9
    edited August 2012
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    Hello,
    I have a pair of DARED VP20's and a Dared SL-2000A (key chain remote) 2003 production that I need to sell but I have absolutely no idea what to ask for them (want to sell all three at once). I'm not trying to sell them in this thread I just need some advice from the folks who own these DARED's. They sound great and work perfectly, its just that I live in the desert where common temps hover around 110 and I can't use any equipment that produces heat the way tubes do. Thanks.
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  • jessie52
    jessie52 Posts: 34
    edited November 2012
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    I have a Dared SL-2000 which sounds great but I can hear a hum from the speakers. I already upgraded the tubes to NOS and rectifier to Bendix. Is this common?
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  • audiocr381ve
    audiocr381ve Posts: 2,588
    edited November 2012
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    I've had mine less than 24 hours and am dealing with a hum. Others have said their's is dead quiet, so no it's not normal. I'm going to try the signal tubes and hopefully that clears it up!
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  • audio_alan
    audio_alan Posts: 770
    edited December 2012
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    For what it's worth, I have some hum as well. It's very low, and is inaudible when the music is playing. However, between songs, if I'm close enough to the speakers then I can hear the hum. I'd love to solve it, but it hasn't been enough of a nuisance for me to rip apart my system looking for the cause.

    Anyone else have hum with the sl2000a, and find a solution? Is it the unit, or other factors?

    Also, the hum stays at a constant level, regardless of how low/high the Dared is set.
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  • audio_alan
    audio_alan Posts: 770
    edited December 2012
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    Keiko wrote: »
    Mine is almost silent. If I put my ear to the speaker I can hear a very slight, almost inaudible hiss. Maybe try some different cables. I'm using AVt2s throughout my rig. Tube dampers also if you're not already.

    Yeah, I'll have to give different cables a shot. Already have Herbie's tube dampers on my tubes. Part of my problem might be that my amp has 32 db of gain, so the background noise will be a bit louder than amps with only 29 db of gain. I'll have to switch to one of my Adcoms to see if that helps.
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  • audiocr381ve
    audiocr381ve Posts: 2,588
    edited December 2012
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    audio_alan wrote: »
    Yeah, I'll have to give different cables a shot. Already have Herbie's tube dampers on my tubes. Part of my problem might be that my amp has 32 db of gain, so the background noise will be a bit louder than amps with only 29 db of gain. I'll have to switch to one of my Adcoms to see if that helps.

    The hum/noise I'm dealing with can be heard 15 ft. away from the speakers. I've tried everything except changing tubes, which I'll do as soon as finances get better. I've thought about sending mine in to see if something got loose during shipping.
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  • tubetto
    tubetto Posts: 2
    edited January 2013
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    Hi mf, could you send me a another clear photo from the inside. Changing the caps, I interrupt a
    small black wire (on the backside) and now not know where I have to resolder.
    Thanks in advance,
    tubetto


    mfg wrote: »
    Hi, all. This thread was what got me to join the forum. Great stuff.

    I'm wondering if someone could forward me a copy of the schematics. I've attached photos of the unit with the back off so it is clear which edition I've got.

    Thanks in advance.

    -Matt.

    Attachment not found.Attachment not found.
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  • tubetto
    tubetto Posts: 2
    edited January 2013
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    Hi all,
    is there somebody who could help and send a photo from the inside (rear part) because I must find where the black wire was fixed.
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  • FTGV
    FTGV Posts: 3,650
    edited January 2013
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    heiney9 wrote: »
    I have it at home, but I will send it to you.
    Do you still have?
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  • FTGV
    FTGV Posts: 3,650
    edited January 2013
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    George or mfg,do either of you gents now have the schem?
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  • heiney9
    heiney9 Posts: 25,710
    edited January 2013
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    FTGV wrote: »
    Do you still have?

    Can't find it Fred. I'll keep looking. If I can find the hard copy I can scan it and send it.

    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 | Galion TS P75 Pre | Holo Audio Cyan 2 Dac | MIT Shotgun S1 | Puritan Audio PSM136 Pwr Condtioner & Classic PC's | Legend L600 | Roon Nucleus 1 w/LPS - Tubes add soul!
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  • heiney9
    heiney9 Posts: 25,710
    edited January 2013
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    As soon as I posted I couldn't find it, I FOUND it.

    Send me an addy Fred, I will honor Joe at Dared and not post it for the general public.

    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 | Galion TS P75 Pre | Holo Audio Cyan 2 Dac | MIT Shotgun S1 | Puritan Audio PSM136 Pwr Condtioner & Classic PC's | Legend L600 | Roon Nucleus 1 w/LPS - Tubes add soul!
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  • george daniel
    george daniel Posts: 12,096
    edited March 2013
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    I still have the Obligattos for sure--I'll take a peek and see if I have anymore of the teflon caps(input),,

    You want em?
    JC approves....he told me so. (F-1 nut)
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  • mfg
    mfg Posts: 17
    edited February 2014
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    Hey, Tubetto and FTGV- I'm writing to apologize for having not replied to your (2013) postings seeking schematics. I had neglected to subscribe to the thread, and just returned today and saw your messages.

    It appears that George and H9 had come through for you, but I do have the schematics now should anyone still have a need.

    -Matt
    -Matt
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  • Dallas21
    Dallas21 Posts: 3
    edited May 2014
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    Looking for help with my new Dared SL2000-A preamp mod. I went and bought 2- .22 Auricapxo for the input,
    And went by the old build that said 4- 1.0 uf caps for the coupling.
    In my Hew unit it does not have the 2 Square caps in back ,and 4 - side by side yellow caps.
    Mine has 2- yellow square caps 7 blue round-oval shiny caps and maybe a black cap under the frame.
    Could someone Pleaee help me .my unit is stuck in the shop waiting on help.Joe at dared sent my 2- older schematics thst donot apply
    I am at finetunes1@hotmail.com. Any help would great be appreciated thank you,Paul.
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  • rener
    rener Posts: 3
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    Hi, recently the left channel of my Dared SL -2000A became noisy, it sounds like deep frying. My tech friend can't seem to isolate the problem. I would appreciate it much if someone could tell me where to find spare boards or maybe used units for sale. Thanks very much.
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  • rener
    rener Posts: 3
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    pitdogg2 wrote: »
    rener wrote: »
    Hi, recently the left channel of my Dared SL -2000A became noisy, it sounds like deep frying. My tech friend can't seem to isolate the problem. I would appreciate it much if someone could tell me where to find spare boards or maybe used units for sale. Thanks very much.

    Auction sites.
    Try new tubes?

    Hi, tried new tubes, still noisy. Nothing on ebay. Will call Mike of Deltronics for a spare board. Thanks for the comment.
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