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  1. #1

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    Thumbs up Impressed with Yaqin Tube Buffer

    Over the last two years, I performed the following upgrades to my system:
    - Upgraded the crossovers in my SDA-2Bís (Sonicap high pass, Solen low pass, Mills resistors)
    - TLíd my SDA-2Bís (RD0198-1 tweeters and added 5.8 uF capacitor in parallel with the 2.7 ohm resistor)
    - Modified my Yamaha CD-745 CD player with better opamps (AD843 and AD8620)
    - Upgraded my integrated amplifier to a NAD C370

    The improvements were dramatic from where I started but the sound was a little sterile and mechanical sounding. After reading some of the discussions on this forum and others, I started wondering if tubes were the answer. I had always assumed that ďtube soundĒ was warm but mushy. Some of the posts I read convinced me that ďtube soundĒ was probably not what I thought. I decided to order a Yaqin Tube Buffer with a JJ/Tesla 6922 tube and installed it in the pre-amp out/main-amp in loop of my NAD C370.

    Wow Ė ďTube soundĒ is wonderful! The difference is subtle yet profound. Itís a subtle difference if you A/B the system by turning the tube buffer on and off. When you sit back and listen for a few minutes, the difference is profound.

    Bass is a little smoother but, much to my surprise, no less punchy. Mids and highs are more liquid but not soft at all. Vocals sound more realistic and cymbals actually sound like cymbals. It sounds only a little warmer but much sweeter and richer. Details used to sound somewhat disconnected from the music. Now the details are part of the instruments, vocals, etc. The details donít hit you in the face like they did before but separation between instruments and vocalists is much more distinct and airy.

    I think I finally understand what the magazine writers mean when they talk about a system conveying ďemotion.Ē Instead of getting bored after a while, it keeps me smiling. The music is much more alive. Iím finally listening to the music instead of analyzing the sound.

    The Yaqin Tube Buffer was $175 and the upgraded tube was $11 from Pacific Valve and Electric. With shipping, it came to $216. This one has a good $ to smile ratio for my system!

  2. #2

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    Great! Glad you like it.
    HT/2-channel Rig: Sony 50Ē LCD TV; Toshiba HD-A2 DVD player; Emotiva LMC-1 pre/pro; Rogue Audio M-120 monoblocks (modded); Placette RVC; Emotiva LPA-1 amp; Bada HD-22 tube CDP (modded); VMPS Tower II SE (fronts); DIY Clearwave Dynamic 4CC (center); Wharfedale Opus Tri-Surrounds (rear); and VMPS 215 sub

    "God grooves with tubes."

  3. #3

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    Good for you Congrats
    engtaz

    I love how music can brighten up a bad day.

  4. #4

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    tubes can be fun,, enjoy :)
    JC approves....he told me so. (F-1 nut)

  5. #5

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    rock on. I'd like to do some experimenting with tubes, but that's aways out for me right now. The route you took seems like a safe way to get a taste of tubes without breaking the bank. If you ever decide to go to a tube pre, or amp drop me a pm and I just might snatch that up from you so I can get a taste myself. Sorry for hijacking the thread.
    Speakers:SDA2a, sub:Atlantic Technologies 172 PBM
    Pre:B&K PRO-10MC(2ch)
    Amps:Parasound HCA 1000a
    SourcesOppo DV-970HD, Xbox360, Kenwood KT-5300
    Cables:Philips/RCA/Monster

    Life's short, Listen to SDA's
    Life is short live Sui Juris
    Where did SOPA go?

  6. #6

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    Way to go Stew. I am impressed with your op amp upgrade. I get too scared to go that direction with electronics.
    Please. Please contact me a ben62670 @ yahoo.com. Make sure to include who you are, and you are from Polk so I don't delete your email. Also I am now physically unable to work on any projects. If you need help let these guys know. There are many people who will help if you let them know where you are.
    Thanks
    Ben

  7. #7

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    Send it here ben, I'll mangle..er..do it for ya.:D
    Speakers:SDA2a, sub:Atlantic Technologies 172 PBM
    Pre:B&K PRO-10MC(2ch)
    Amps:Parasound HCA 1000a
    SourcesOppo DV-970HD, Xbox360, Kenwood KT-5300
    Cables:Philips/RCA/Monster

    Life's short, Listen to SDA's
    Life is short live Sui Juris
    Where did SOPA go?

  8. #8

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    can you post a pic of the unit or a link?
    thanks

  9. #9

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    Thanks for all the replies. I bought mine from Pacific Valve and Electric Company:

    http://www.pacificvalve.us/YaqinTB.html

    Lots of other reasonably priced tube gear on their site too.

  10. #10

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    Quote Originally Posted by Stew View Post
    Thanks for all the replies. I bought mine from Pacific Valve and Electric Company:

    http://www.pacificvalve.us/YaqinTB.html

    Lots of other reasonably priced tube gear on their site too.
    Stew, you Bast$%^! I was all set to get the Musical Fidelity tube buffer, now you throw this at me! Back to the drawing board.

    :Runs out of the room in a stupor:

    V
    Let me tell you something about life, around every corner monsters await. I know, I am one.

    If I owned hell and this place, I would rent this place out and live in hell.

    Mains: Anthony Gallo Reference 3.1
    Preamp: Modwright SWL9.0SE
    Amps: Butler TBD2250, PS Audio Trio
    PrePro: Cary Cinema 6, Outlaw 990
    DAC: Benchmark DAC1
    Universal Player: Denon 2900
    Cables: StraightWire Encore II, Kimber Hero, Audioquest Type 4, CV-8, Columbia DBS
    Power Conditioner: Belkin PF60

  11. #11

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    LOL - I haven't heard the Musical Fidelity tube buffer but I know someone that recently bought one and he seems quite happy with it. I did find one review that compares the two:

    http://www.epinions.com/content_312424107652

    One thing I do like better about the Yaqin is the ability to roll tubes until you find just the sound you're looking for. Also kinda cool to watch the tube glow!

  12. #12

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    Nice grab Stewy...sounds like a winner,enjoy!

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