Tube Phono Preamp help

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  • voltz
    voltz Posts: 5,384
    edited September 2014
    Now your rocking brother :)

    btw I just finaly found a copy of Teaser & the Firecat on Vinyl...also have a copy coming of "Buddha & the Chocolate Box" that is suppose to be mint condition .
    2 ch- Polk CRS+ * Vincent SA-31MK Preamp * Vincent Sp-331 Amp * Marantz SA8005 SACD * Project Xperience Classic TT * Sumiko Blue Point #2 MC cartridge

    HT - Polk 703's * NAD T-758 * Adcom 5503 * Oppo 103 * Samsung 60" series 8 LCD
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  • vcwatkins
    vcwatkins Posts: 1,993
    Both albums are excellent for demo imo. (Tried hard to get Boston tix, but was not fast or lucky enough.)

    gce - I recently changed out my Goldring 1012 MM with a Denon 103r on my Music Hall 5.1 and absolutely LOVE it. I can see why it's been recommended by so many for so long.

    I also have a Denon DL-110 homc which is pleasingly detailed and sounded excellent when I was using a Project Tube Box (think it was a mkII with nos Mullards). But I still prefer the 103r, especially with the current pre's (PSAudio NPC and Jolida).

    BTW, I did have some sort of magnetic hum issue with the DL-110 installed on my Music Hall TT that had a metal platter. I replaced it with an acrylic platter and it is very enjoyable paired with an Emotiva USP-1 preamp built-in and Parasound HCA-2200 in the game room "fun system".

    Have fun with your search!

    Craig

    b]Beach Audio[/b]: Rega RP6 (mods) - AT33PTG/II - Parks Budgie SUT - PSAudio NPC * Eversolo DMP-A6 * Topping D90iii * Joule-Electra LA-100 mkIII * Pass Aleph 30 * MIT S3 * Polk SRS 2.3tl (mods) * PSAudio PPP3
    Beach Study: Pro-Ject Stream Box S2 Ultra & Pre Box S2 * Pass ACA * DH Labs SS Q10 * Brines Folded ML-TQWT RS 40-1354 * PSA Dectet
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    Town Study: WiiM Pro * Chord Qute (Pardo) * Elekit TU-8600 * MIT S3 * Revel M22 * Beyer DT-990 * Shunyata Hydra 2
    Town Den: Music Hall mm5.1se - Denon DL-103r - Jolida JD9ii (mods) * WiiM Pro * Cary xCiter * Rogue 99 Magnum * Schiit Aegir * MIT S3 * Polk SRS 1.2tl (mods) * Dectet * Bottlehead Crack - Senn 600
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  • gce
    gce Posts: 2,158
    edited March 2015
    Fongolio wrote: »
    I'm using 1961 vintage Mullard 12AX7's in my Project Tube Box SE and it is sweet sound indeed.

    I've decided to try these Mullard's Fongolio so I took the tubes out of my Project DS and there is a heat sink around the tube and its stuck on with maybe some epoxy. Do I need this heat sink on the new tube I put in and if so how do I get the heat sink off without destroying the stock tubes? I new at this...
    Post edited by gce on
    Anaheim Hills CA,
    HT 5.1: Anthem MRX 720 / BDP-Denon DBT1713UD / Polkaudio LSiM703 / W4S mAmp's / Polkaudio LSiM706c / Polkaudio LSiM702F/X's / SVS PC12-NSD / Panasonic TC P55VT30

    2 Channel: Rogue RP-5 / WireWorld Electra power cord / Marantz TT-15S1/ Ortofon - Quintet Black MC / Marantz NA8005 DAC / W4S mAmp's / Synology DS 216+ll-4TB / Polkaudio LSiM703
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  • mhardy6647
    mhardy6647 Posts: 33,802
    edited March 2015
    Small signal tubes generate very little heat; heat sinks are not required. Perhaps (???) the gizmo(s) on the tube(s) are to quell vibration (which can cause "microphonic" distortions in high gain tubes like a 12AX7 or 6922).
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  • gce
    gce Posts: 2,158
    Thanks, pretty sure these are heat sinks. They're made of aluminum with fins on them. I have put my hand on the preamp and its warm but not hot to the touch so I'm not going to worry about it.
    Anaheim Hills CA,
    HT 5.1: Anthem MRX 720 / BDP-Denon DBT1713UD / Polkaudio LSiM703 / W4S mAmp's / Polkaudio LSiM706c / Polkaudio LSiM702F/X's / SVS PC12-NSD / Panasonic TC P55VT30

    2 Channel: Rogue RP-5 / WireWorld Electra power cord / Marantz TT-15S1/ Ortofon - Quintet Black MC / Marantz NA8005 DAC / W4S mAmp's / Synology DS 216+ll-4TB / Polkaudio LSiM703
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  • mhardy6647
    mhardy6647 Posts: 33,802
    Any 12AX7 run within its limits will only get warm and really (really) doesn't need any heat sinking. It'll also (most likely) last tens of thousands of hours, too.

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  • gce
    gce Posts: 2,158
    Wife is out for the day so I rolled my first tubes, a matched pair of Mullard NOS ECC83 / 12AX7. I let everything warm up and put on Harvest Neil Young for the first test! All I can say is "Holy Carp" this sounds so good. The way this has improved I don't see me rolling any more tubes.

    Next step is a different cartridge...Thanks for all your help guys! :)

    Anaheim Hills CA,
    HT 5.1: Anthem MRX 720 / BDP-Denon DBT1713UD / Polkaudio LSiM703 / W4S mAmp's / Polkaudio LSiM706c / Polkaudio LSiM702F/X's / SVS PC12-NSD / Panasonic TC P55VT30

    2 Channel: Rogue RP-5 / WireWorld Electra power cord / Marantz TT-15S1/ Ortofon - Quintet Black MC / Marantz NA8005 DAC / W4S mAmp's / Synology DS 216+ll-4TB / Polkaudio LSiM703
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  • bartkess
    bartkess Posts: 2
    I'm new here and this is my first post .
    I have a quick question.
    I have the Pro-Ject Audio - Tube Box DS. The tubes don't stick out enough for me to get a good grip on them to pull them out. How do you guys get them out?
    Thanks for the help.
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  • gce
    gce Posts: 2,158
    nbrowser wrote: »
    Rubber coated spark plug boot pliers? Just an idea.

    That would probably work. I had a hell of a time getting mine out. I used some rubber tape, not sticky tape but I had to grip it with 4 fingers to get them out. I thinking there should be some kind of puller but I didn't find one.

    Anaheim Hills CA,
    HT 5.1: Anthem MRX 720 / BDP-Denon DBT1713UD / Polkaudio LSiM703 / W4S mAmp's / Polkaudio LSiM706c / Polkaudio LSiM702F/X's / SVS PC12-NSD / Panasonic TC P55VT30

    2 Channel: Rogue RP-5 / WireWorld Electra power cord / Marantz TT-15S1/ Ortofon - Quintet Black MC / Marantz NA8005 DAC / W4S mAmp's / Synology DS 216+ll-4TB / Polkaudio LSiM703
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  • SCompRacer
    SCompRacer Posts: 8,497
    bartkess wrote: »
    I have the Pro-Ject Audio - Tube Box DS. The tubes don't stick out enough for me to get a good grip on them to pull them out. How do you guys get them out?
    Thanks for the help.

    Welcome!

    I wear a pair of Dyneema Polyurethane Gloves. Around $10-$35 depending on brand. They aren't too thick or thin and provide a non slip grip on the glass. AKA cut resistant gloves.

    81SVD%2BXcRtL._SY450_.jpg
    Salk SoundScape 8's * Audio Research Reference 3 * Bottlehead Eros Phono * Park's Audio Budgie SUT * Krell KSA-250 * Harmonic Technology Pro 9+ * Signature Series Sonore Music Server w/Deux PS * Roon * Gustard R26 DAC / Singxer SU-6 DDC * Heavy Plinth Lenco L75 Idler Drive * AA MG-1 Linear Air Bearing Arm * AT33PTG/II & Denon 103R * Richard Gray 600S * NHT B-12d subs * GIK Acoustic Treatments * Sennheiser HD650 *
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  • bartkess
    bartkess Posts: 2
    Thanks for the info. I was able to get the tubes out using kitchen gloves. But was not able to get the dampers off the tubes. I wanted to see what tubes are in it.
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  • gce
    gce Posts: 2,158
    The tubes are ECC83 (12AX7A) and no need in re-using the heat sinks. The tubes don't really get that hot.
    Anaheim Hills CA,
    HT 5.1: Anthem MRX 720 / BDP-Denon DBT1713UD / Polkaudio LSiM703 / W4S mAmp's / Polkaudio LSiM706c / Polkaudio LSiM702F/X's / SVS PC12-NSD / Panasonic TC P55VT30

    2 Channel: Rogue RP-5 / WireWorld Electra power cord / Marantz TT-15S1/ Ortofon - Quintet Black MC / Marantz NA8005 DAC / W4S mAmp's / Synology DS 216+ll-4TB / Polkaudio LSiM703
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