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  1. #1

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    Default Tube Heads take a look

    If you are interested in this stuff this might help


    http://www.vacuumtubeera.net/TubeSub...ebook-1960.pdf

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    all the best,
    mrh

  3. #3

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    well who here has used 6sn7 tubes? Have you ever rolled in 6180,6BL7 or 6BX7 in there place? According to the link in my first post these are Excellent Direct substitutions for 6sn7...But I'm thinking more for TV than Audio...but the prices of the two 6BL7/6BX7 are 1/4 of what 6sn7's go for. It also says that the 5692 tubes are only rated as "good" as a sub for 6sn7. Just cant find anything on 6180 so who knows.

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    Quote Originally Posted by pitdogg2 View Post
    Have you ever rolled in 6180,6BL7 or 6BX7 in there place? but the prices of the two 6BL7/6BX7 are 1/4 of what 6sn7's go for. It also says that the 5692 tubes are only rated as "good" as a sub for 6sn7. Just cant find anything on 6180 so who knows.
    I would love to find a more affordable tube than the prices I'm seeing on 6SN7s . . .
    I'll have to spend some time with the links above
    Mains Polk SDA SRS 2 (modified) Sub M&K MX-100
    Power Pass Aleph 30 & Adcom GFA 5802
    Power Conditioner Furman Elite 15 PF i
    Rears Definitive Technology BP-2
    Center Definitive Technology C-1
    Pre/Pro Integra DHC 40.1
    Pre Cary SLP-98 Hot Rod
    LCD Samsung LN46B750
    Source Oppo 105
    Wires MIT S3.3

  5. #5

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    Quote Originally Posted by pitdogg2 View Post
    well who here has used 6sn7 tubes? Have you ever rolled in 6180,6BL7 or 6BX7 in there place? According to the link in my first post these are Excellent Direct substitutions for 6sn7...But I'm thinking more for TV than Audio...but the prices of the two 6BL7/6BX7 are 1/4 of what 6sn7's go for. It also says that the 5692 tubes are only rated as "good" as a sub for 6sn7. Just cant find anything on 6180 so who knows.
    I replaced my 6sn7's for CV181z's
    HT:Polk LSi c LSi 15's VR3 LSi 9's LSi FX's Dual DSW MP3K's Marantz AV7701 Sunfire TGA-7401 Oppo BDP-93 Sony PS4 Directv Genie HD DVR Samsung 64" Plasma

    2 C: VR3 LSIM 703's Monitor 5B's SDA SRS 2.3's DSW MP 1K Yaqin MC100B with Shuguang 50Years Treasures KT 88's & CV181Z's Tesla E83CC's Marantz 2385 Yamaha M80 Parasound 2100 Pre Squeezebox Touch Marantz SA8004 SACD Music Hall MMF 5.1 TT Musical Surroundings Phonomena II Phono Pre

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    Quote Originally Posted by pitdogg2 View Post
    well who here has used 6sn7 tubes? Have you ever rolled in 6180,6BL7 or 6BX7 in there place? According to the link in my first post these are Excellent Direct substitutions for 6sn7...But I'm thinking more for TV than Audio...but the prices of the two 6BL7/6BX7 are 1/4 of what 6sn7's go for. It also says that the 5692 tubes are only rated as "good" as a sub for 6sn7. Just cant find anything on 6180 so who knows.
    I wouldn't hold your breath. If there was a suitable direct sub, audiophiles would be all over it long ago. I doubt very much there are any holy grail subs out there as the tube thing is a very mature game. 5692's are certainly much better than "good" subs, at least when it comes to audio applications.

    Many time the old tube manuals can't be relied upon 100% as today's tube circuits are certainly a bit different for audio and back then they were talking about TVs.

    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 Aleph 30; Eastern Electric Mini Max; Adcom GDA600; MIT S3/Z Pc; SDA 1C; Squeezebox; Tubes add soul!

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    Quote Originally Posted by heiney9 View Post
    I wouldn't hold your breath. If there was a suitable direct sub, audiophiles would be all over it long ago. I doubt very much there are any holy grail subs out there as the tube thing is a very mature game. 5692's are certainly much better than "good" subs, at least when it comes to audio applications.
    I'm not just trying to cut down on learning curve. I do not think I will be getting any 5692's as I've been seeing some that the seller states "just above mimimum" and they sell for 200.00+.

    Quote Originally Posted by heiney9 View Post
    Many time the old tube manuals can't be relied upon 100% as today's tube circuits are certainly a bit different for audio and back then they were talking about TVs.H9
    Thanks Brock Knowing that the 6sn7 was a TV vertical hold tube I wondered how it's audio application would carry over to subsitutes.

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    Quote Originally Posted by Mikey081057 View Post
    I replaced my 6sn7's for CV181z's
    What do you find that you liked with those and what 6SN7 tubes had you used?

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    Actually Ivan a nice pair of 50's SYLVANIA 6SN7's chrome domes are hard to beat.
    "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 Aleph 30; Eastern Electric Mini Max; Adcom GDA600; MIT S3/Z Pc; SDA 1C; Squeezebox; Tubes add soul!

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    Quote Originally Posted by heiney9 View Post
    Actually Ivan a nice pair of 50's SYLVANIA 6SN7's chrome domes are hard to beat.
    Like these: http://www.ebay.com/itm/161182924676

    Also bought some early 50's CBS/Hytron from same seller like both but to me the CBS/Hytron's are a bit bloated in the bass. Much more bass than the Sylvania's but to me the CBS are a little flabby. I like both but CBS can be a bit much with bass heavy tracks. Wanting to get these :http://www.ebay.com/itm/191026997919...84.m1423.l2649
    and these: http://www.ebay.com/itm/121245882620...84.m1423.l2649
    I have not heard any Raytheon's both were at the top of a list I found on another website Cheap enough to try anyway.

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    Quote Originally Posted by pitdogg2 View Post
    What do you find that you liked with those and what 6SN7 tubes had you used?
    I used the shuguang treasure CV181z's in place of some stock 6sn7's. The originals were not very good, and the shuggies are way more musical.

    They are very quiet and velvety smooth in combination with the same kt-88's

    My Yaqin MC100B has:

    Matched quad of Shuguang 50 years Black Treasures KT-88's

    Matched quad of Shuguang 50 years Black Treasures CV-181Z's

    Matched Pair of Tesla NOS E83CC's

    This combination was a dramatic upgrade in my amp from the stock tubes however I have no other comparisons as I just went straight to those.
    HT:Polk LSi c LSi 15's VR3 LSi 9's LSi FX's Dual DSW MP3K's Marantz AV7701 Sunfire TGA-7401 Oppo BDP-93 Sony PS4 Directv Genie HD DVR Samsung 64" Plasma

    2 C: VR3 LSIM 703's Monitor 5B's SDA SRS 2.3's DSW MP 1K Yaqin MC100B with Shuguang 50Years Treasures KT 88's & CV181Z's Tesla E83CC's Marantz 2385 Yamaha M80 Parasound 2100 Pre Squeezebox Touch Marantz SA8004 SACD Music Hall MMF 5.1 TT Musical Surroundings Phonomena II Phono Pre

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    Well Mikey that makes sense to me. I have tossed around the idea of Sophie Electric 6sn7 and the cost is on par with NOS premium tubes.

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    Quote Originally Posted by pitdogg2 View Post
    Well Mikey that makes sense to me. I have tossed around the idea of Sophie Electric 6sn7 and the cost is on par with NOS premium tubes.
    \
    They are expensive, but if you go thru rolling a bunch of them it will probably take 200 hours per roll to get them burned in, and then you have to sell the ones you don't like, and may end up with the Sophia's in the end.

    Maybe it's just best to go with the Sophia's and see how much they improve the sound, and if you like them call it a day and move on to the next section of the rabbit hole.
    HT:Polk LSi c LSi 15's VR3 LSi 9's LSi FX's Dual DSW MP3K's Marantz AV7701 Sunfire TGA-7401 Oppo BDP-93 Sony PS4 Directv Genie HD DVR Samsung 64" Plasma

    2 C: VR3 LSIM 703's Monitor 5B's SDA SRS 2.3's DSW MP 1K Yaqin MC100B with Shuguang 50Years Treasures KT 88's & CV181Z's Tesla E83CC's Marantz 2385 Yamaha M80 Parasound 2100 Pre Squeezebox Touch Marantz SA8004 SACD Music Hall MMF 5.1 TT Musical Surroundings Phonomena II Phono Pre

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    Quote Originally Posted by Mikey081057 View Post
    \
    They are expensive, but if you go thru rolling a bunch of them it will probably take 200 hours per roll to get them burned in, and then you have to sell the ones you don't like, and may end up with the Sophia's in the end.

    Maybe it's just best to go with the Sophia's and see how much they improve the sound, and if you like them call it a day and move on to the next section of the rabbit hole.
    HEY NOW stop throwing LOGIC into this ......

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    I'm the 40 year old tube virgin.... :(


    lol
    --Gary--

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