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  1. #1

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    Default Tubes for Shenda (Jolida) SD100S CD Player

    Just reassembled the SDA SRS I bought after some major refurbishing. They sound great, but I am using a Sony DVD player (single disc) and a Sony 400 disc changer (really old one) as my source units. Therefore, I bought this Shenda (Jolida) SD100S CD Player on Audiogon:

    http://www.audiogon.com/cgi-bin/cls....lay&1306682875

    Has anyone had experience with it, and are the tubes mentioned as replacements any good?

    They are JJ Tesla 12AX7 and 12AU7. I haven't even received the CD player yet, but wonder what thoughts some you may have regarding the tubes. Should I look to get some Telefunken or Mullard tubes? Never owned a tubed product, so any guidance would be appreciated.
    __________________
    2 Channel
    Polk SDA SRS, Nakamichi Pa-5 Preamp, PA-7 Amp, Shenda (Jolida) SD100S CD Player (Sylvania Gold Brand 5751 & Amperex Holland, Orange Globe 12au7 tubes).

    Home Theatre
    Onkyo SR707, Samsung Blu Ray,Sony 400 Disc DVD Changer, Sony 46" LCD (Model?)
    Speakers: Front L/R: JBL L7, Center: JBL LC1, Surround: TBD (likely JBL L1)


    Car: Clarion 9255-DRX, Adcom GFA 4702, GFA 4404, Pioneer TS-A1702c (Front and Rear), 2 Boston Acoustics 12.5LF subs

  2. #2

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    Link doesn't work for me.

    JJ Tesla tubes are pretty mediocre and average. Telefunken or Mullards would be great, but be ready to pay since the 12AX and 12AU are the most popular.

    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!

  3. #3

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    Thanks for the input, hope this link works:

    http://cgi.audiogon.com/cgi-bin/cl.p...SD100s-cd-play
    2 Channel
    Polk SDA SRS, Nakamichi Pa-5 Preamp, PA-7 Amp, Shenda (Jolida) SD100S CD Player (Sylvania Gold Brand 5751 & Amperex Holland, Orange Globe 12au7 tubes).

    Home Theatre
    Onkyo SR707, Samsung Blu Ray,Sony 400 Disc DVD Changer, Sony 46" LCD (Model?)
    Speakers: Front L/R: JBL L7, Center: JBL LC1, Surround: TBD (likely JBL L1)


    Car: Clarion 9255-DRX, Adcom GFA 4702, GFA 4404, Pioneer TS-A1702c (Front and Rear), 2 Boston Acoustics 12.5LF subs

  4. #4

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    My favorite (2) 12AX7 tubes are 1950's Valvo Hamburg short plate and 1950's RCA long black plates.

    The long plate Valvo's go for about 20-30% more.

    I buy all my tubes used and I paid about $125/pr for the Valvo's and $75/pr for the RCA's.

    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!

  5. #5

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    Heiney, thanks again. I will start looking to see what I can find. Considering I got the CD player for a very good price, I have no issue spending a little more on the tubes if they make it sound even better.
    2 Channel
    Polk SDA SRS, Nakamichi Pa-5 Preamp, PA-7 Amp, Shenda (Jolida) SD100S CD Player (Sylvania Gold Brand 5751 & Amperex Holland, Orange Globe 12au7 tubes).

    Home Theatre
    Onkyo SR707, Samsung Blu Ray,Sony 400 Disc DVD Changer, Sony 46" LCD (Model?)
    Speakers: Front L/R: JBL L7, Center: JBL LC1, Surround: TBD (likely JBL L1)


    Car: Clarion 9255-DRX, Adcom GFA 4702, GFA 4404, Pioneer TS-A1702c (Front and Rear), 2 Boston Acoustics 12.5LF subs

  6. #6

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    I'm sure others will chime in with recommendations. I know many here think the Ei tubes from Yugoslavia are nice. I have a pair of those as well, but I like the RCA and Valvo better.

    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!

  7. #7

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    I agree with H9 that Mullards, Teles, or Valvos could be a nice upgrade. You may want to listen to the unit a little first to decide what way you may want to go. The mullards can be a little "lush" with a full warm midrange while the Teles a little more extended at the extremes and having a flatter response in the middle. Possibly a little more air in the Tele IMHO. You may want to listen in your system and get a feel for the players synergy with your other componenets before you make a purchase of additional tubes. Check out "Joes Tube Lore" on audio asylum for a comparison of many different brands and types of tubes for additional insight. Interesting read.
    Joe's Tube Lore
    pre VAC Standard LE, power VAC PA100/100 phi upgrade, analog Origin Live Aurora Mk2, Origin Live Encounter Mk3c, Benz Ebony H, digital Lector 0.6t, speakers Thiel CS2.4, Rel Strata III, cables Audience AU24 e IC, Audience AU24 e SC, power Audience aR1p, Audience aR2p, Audience PowerCord e

  8. #8
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    I like the Shuguang Treasure 12AX and 12AU tubes. They are more expensive than standard new tubes, but less expensive than the favored NOS tubes.

  9. #9

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    treasure AX and AU

    Sylvania 5751 BP 3 mica D getter (12AX7)

    Amperex 7318 D getter short or long plate for 12AU7
    Speakers: SDA-1C (most all the goodies)
    Preamp: Joule Electra LA-150 MKII SE
    Amp: Wright WPA 50-50 EAT KT88s
    Analog: Marantz TT-15S1 MBS Glider SL| Wright WPP100C Amperex BB 6er5 and 7316 & WPM-100 SUT
    Digital: Mac mini 2.3GHz dual-core i5 8g RAM 1.5 TB HDD Music Server Amarra (memory play) - USB - W4S DAC 2
    Cables: Mits S3 IC and Spk cables| PS Audio PCs

    Ofc: Wright WLA12 preamp: Anthem Amp 1: Pio Elite DV-79AVI: Airport Express: CAL Sigma II DAC: PA LS90 sonicaps and mills

  10. #10

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    Nice snag on that CDP. I use Shuguang Psvane 12AX7's in my Jolida player and love them. My player came with JJ Teslas which were not impressive.
    System
    ModWright SWL 9.0SE Signature Preamp | Aragon 8008 Mk II Amplifier
    Sonus Faber Cremona Loudspeakers
    Squeezebox Touch |Rega DAC
    | Jolida JD-100A CDP | Sansui TU-717 Tuner (Joseph Chow Mods)

  11. #11

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    12AX7LPS - from Sovtek, get the LPS designation. Get mil spec JAN nos for the AU - 5963, 5814, etc, and you're golden.

    Cheers,
    Russ
    Check your lips at the door woman. Shake your hips like battleships. Yeah, all the white girls trip when I sing at Sunday service.

  12. #12

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    Quote Originally Posted by Jetmaker737 View Post
    Nice snag on that CDP. I use Shuguang Psvane 12AX7's in my Jolida player and love them. My player came with JJ Teslas which were not impressive.
    I'll second the Psvane 12AX7's, nice improvement over the stock tubes that came in my Jolida JD-100.

  13. #13

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    Wow, I have a lot to consider with so many varied suggestions. I think I will heed the advice to listen to the player as is for a while, and then make some selections based on the feedback here, and the other tube "tests" I have been looking at (including the Joe's Tube Lore posting on AA).

    Thanks for all the input!
    2 Channel
    Polk SDA SRS, Nakamichi Pa-5 Preamp, PA-7 Amp, Shenda (Jolida) SD100S CD Player (Sylvania Gold Brand 5751 & Amperex Holland, Orange Globe 12au7 tubes).

    Home Theatre
    Onkyo SR707, Samsung Blu Ray,Sony 400 Disc DVD Changer, Sony 46" LCD (Model?)
    Speakers: Front L/R: JBL L7, Center: JBL LC1, Surround: TBD (likely JBL L1)


    Car: Clarion 9255-DRX, Adcom GFA 4702, GFA 4404, Pioneer TS-A1702c (Front and Rear), 2 Boston Acoustics 12.5LF subs

  14. #14

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    I have TJ Full Music 12AX7's in my JD-100A and love them. They manage to sound transparent, detailed, and neutral with fast/tight/punchy bass while still sounding smooth and liquid. Check out some reviews for these as well.
    Last edited by Stew; 04-06-2011 at 11:58 PM.

  15. #15

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    okay, I think I have the tubes I am going to start with, but have a question I hope you all can chime in on before I buy em.

    One set has ratings of 49/47 & 44/46 on a TV-7 tester, where the minimum good is 30. Can't seem to find the high rating (I guess maybe 50). Are these tubes close enough on the scoring scale to make sense of buying them? I assume the only major effect would be that one would potentially wear out a little sooner than the other. They are costly tubes, so I just want to make sure this makes sense.

    Looking at Sylvania GB 5751 and RCA Clear Tops for 12au7 (at least for now).
    2 Channel
    Polk SDA SRS, Nakamichi Pa-5 Preamp, PA-7 Amp, Shenda (Jolida) SD100S CD Player (Sylvania Gold Brand 5751 & Amperex Holland, Orange Globe 12au7 tubes).

    Home Theatre
    Onkyo SR707, Samsung Blu Ray,Sony 400 Disc DVD Changer, Sony 46" LCD (Model?)
    Speakers: Front L/R: JBL L7, Center: JBL LC1, Surround: TBD (likely JBL L1)


    Car: Clarion 9255-DRX, Adcom GFA 4702, GFA 4404, Pioneer TS-A1702c (Front and Rear), 2 Boston Acoustics 12.5LF subs

  16. #16

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    I changed the tubes yesterday, after spending a little over a week listening to the player with the Tesla tubes in it. It sounded pretty good prior to the tube swap, and obviously a huge improvement over my other options. That said, I ended up going with the Sylvania (Gold Brand) 5751 tubes, dated from 1957 along with Amperex (Holland) orange globe 12au7, NOS. The difference is quite obvious right from the start. I managed to get about 2 hours of listening in yesterday, and was really happy with what I heard.

    I won't pretend to be an expert, and my room is way to small for the SDA SRS to work properly, but the difference is huge in the sound quality. The mid range is much smoother and more detailed. The sound of individual instruments is also much clearer and seperated. When multiple instruments are playing from different areas on the percieved soundstage, they don't blend together like they did with the Tesla tubes in the Shenda, or with my DVD/Sony CD Changer previously. I didn't imagine there would be as much difference as there is, but to say the least, despite the ridiculous cost of the Sylvania tubes, I feel like it was worth it.
    Last edited by adcomcyclone; 04-25-2011 at 01:52 PM.
    2 Channel
    Polk SDA SRS, Nakamichi Pa-5 Preamp, PA-7 Amp, Shenda (Jolida) SD100S CD Player (Sylvania Gold Brand 5751 & Amperex Holland, Orange Globe 12au7 tubes).

    Home Theatre
    Onkyo SR707, Samsung Blu Ray,Sony 400 Disc DVD Changer, Sony 46" LCD (Model?)
    Speakers: Front L/R: JBL L7, Center: JBL LC1, Surround: TBD (likely JBL L1)


    Car: Clarion 9255-DRX, Adcom GFA 4702, GFA 4404, Pioneer TS-A1702c (Front and Rear), 2 Boston Acoustics 12.5LF subs

  17. #17

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    Quote Originally Posted by adcomcyclone View Post
    I changed the tubes yesterday, after spending a little over a week listening to the player with the Tesla tubes in it. It sounded pretty good prior to the tube swap, and obviously a huge improvement over my other options. That said, I ended up going with the Sylvania (Gold Brand) 5751 tubes, dated from 1957 along with Amperex (Holland) orange globe 12au7, NOS. The difference is quite obvious right from the start. I managed to get about 2 hours of listening in yesterday, and was really happy with what I heard.

    I won't pretend to be an expert, and my room is way to small for the SDA SRS to work properly, but the difference is huge in the sound quality. The mid range is much smoother and more detailed. The sound of individual instruments is also much clearer and seperated. When multiple instruments are playing from different areas on the percieved soundstage, they don't blend together like they did with the Tesla tubes in the Shenda, or with my DVD/Sony CD Changer previously. I didn't imagine there would be as much difference as there is, but to say the least, despite the ridiculous cost of the Sylvania tubes, I feel like it was worth it.
    Welcome to the world of tubes............I still believe very, very strongly that nothing new compares to the better Old Stock tubes from the 50s' and 60's. Not to say every tube type made back then is the best, but you made excellent choices and it shows in the end sound you achieved.

    Tube rolling is fun and the changes, many times, are not subtle.

    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!

  18. #18

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    A nice 12AU7 are RCA cleartops and feel they are overlooked. Very reasonable price I think I sold a nice pair here for $35.
    Speakers: SDA-1C (most all the goodies)
    Preamp: Joule Electra LA-150 MKII SE
    Amp: Wright WPA 50-50 EAT KT88s
    Analog: Marantz TT-15S1 MBS Glider SL| Wright WPP100C Amperex BB 6er5 and 7316 & WPM-100 SUT
    Digital: Mac mini 2.3GHz dual-core i5 8g RAM 1.5 TB HDD Music Server Amarra (memory play) - USB - W4S DAC 2
    Cables: Mits S3 IC and Spk cables| PS Audio PCs

    Ofc: Wright WLA12 preamp: Anthem Amp 1: Pio Elite DV-79AVI: Airport Express: CAL Sigma II DAC: PA LS90 sonicaps and mills

  19. #19

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    Quote Originally Posted by thsmith View Post
    A nice 12AU7 are RCA cleartops and feel they are overlooked. Very reasonable price I think I sold a nice pair here for $35.
    This is great, because I also bought a set of the RCA Cleartop 12au7 and am going to try them in place of the Amperex tubes currently in the player after a while to see how they compare. This could be bad for the wallet!
    2 Channel
    Polk SDA SRS, Nakamichi Pa-5 Preamp, PA-7 Amp, Shenda (Jolida) SD100S CD Player (Sylvania Gold Brand 5751 & Amperex Holland, Orange Globe 12au7 tubes).

    Home Theatre
    Onkyo SR707, Samsung Blu Ray,Sony 400 Disc DVD Changer, Sony 46" LCD (Model?)
    Speakers: Front L/R: JBL L7, Center: JBL LC1, Surround: TBD (likely JBL L1)


    Car: Clarion 9255-DRX, Adcom GFA 4702, GFA 4404, Pioneer TS-A1702c (Front and Rear), 2 Boston Acoustics 12.5LF subs

  20. #20

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    Quote Originally Posted by heiney9 View Post
    Welcome to the world of tubes............I still believe very, very strongly that nothing new compares to the better Old Stock tubes from the 50s' and 60's. Not to say every tube type made back then is the best, but you made excellent choices and it shows in the end sound you achieved.

    Tube rolling is fun and the changes, many times, are not subtle.

    H9
    Yes, this is going to be interesting. I have already decided to visit a hamfest next month and see if there are any bargains to be had on other vintage tubes. I am scared to think where this leads in years to come...tube pre, amps, etc, just cause I am going to want to know.
    2 Channel
    Polk SDA SRS, Nakamichi Pa-5 Preamp, PA-7 Amp, Shenda (Jolida) SD100S CD Player (Sylvania Gold Brand 5751 & Amperex Holland, Orange Globe 12au7 tubes).

    Home Theatre
    Onkyo SR707, Samsung Blu Ray,Sony 400 Disc DVD Changer, Sony 46" LCD (Model?)
    Speakers: Front L/R: JBL L7, Center: JBL LC1, Surround: TBD (likely JBL L1)


    Car: Clarion 9255-DRX, Adcom GFA 4702, GFA 4404, Pioneer TS-A1702c (Front and Rear), 2 Boston Acoustics 12.5LF subs

  21. #21

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    Quote Originally Posted by adcomcyclone View Post
    Yes, this is going to be interesting. I have already decided to visit a hamfest next month and see if there are any bargains to be had on other vintage tubes. I am scared to think where this leads in years to come...tube pre, amps, etc, just cause I am going to want to know.
    If you're going to a hamfest--poke around,, you never know when you might be staring at some old recitifiers,,5AR4's,,and such,,have fun and keep your eyes open,,BTW-- it's been my experience to make an effort to get there early--good luck and have fun.
    JC approves....he told me so. (F-1 nut)

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