Giao lưu, họp mặt thành viên vùng Bay Area: SF, SJ, etc.

Discussion in 'Bang hội / Câu lạc bộ' started by Hai Lúa-USA, 17/10/08.

  1. Unison250th

    Unison250th Advanced Member

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    Bác Cauyem,

    Trước khi bác làm cái K2, bác có nói là bác sẽ làm cặp giống cặp này thấy ở CES2009 mà, cặp này coi dể lắm, nghe khá hay, nhỏ lại gọn nữa, bác thử cặp này trước để lấy kinh nghiệm.
     
  2. Unison250th

    Unison250th Advanced Member

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    Tweeter là Fountek, Fountek copy của Aurum Cantus G2. Theo bác VMPS với thì Aurum Cantus chỉ thua RAAL (mắc gấp 5 lần) Fountek thì rẻ hơn. Modify ribbon rất dể, chỉ dùng aluminum diaphragm dầy hay mỏng (nặng hay nhẹ), mỏng (nhẹ) thì làm độ nhạy cao hơn, nhưng dể rách hơn, power ít hơn, nhưng vì diaphragm rất rẻ, khoãng 5-10$, còn nếu dùng Aluminum foil hoặc từ capacitor thì chi phí không đáng kể, nên tha hồ mod. Đang sửa soạn tháo cái AC G2 để mod bằng diaphragm mỏng coi xem âm thanh sẽ ra thế nào.
     
  3. Unison250th

    Unison250th Advanced Member

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    tiep theo
     
  4. Unison250th

    Unison250th Advanced Member

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    Hãng Tonian Lab hình như lấy cái Aurum Cantus G2 ($340/pr) hoặc Fountek CD3 ($190/pr) về mod, bán là $1000/pr.
     
  5. Unison250th

    Unison250th Advanced Member

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    Tonian R2 va Fountek, AC.
     
  6. Cau Yem

    Cau Yem Advanced Member

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    Một cặp 4894A-90 vưa về tới nhà, cặp còn lại thì thứ hai mới tới.
    Đây là hình của mấy cái drivers bên trong:
     

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  7. Hai Lúa-USA

    Hai Lúa-USA Advanced Member

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    Bác CY vẫn còn chơi horn trong khi bác Unison đang mày mò với ribbon! :) Thấy bên Thái dân audiophile combine cả 2.
     
  8. Unison250th

    Unison250th Advanced Member

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    Ribbon chi dung cho phan high thoi bac, lau nay dung cho high chi choi 077, cho nen kiem co gi khac hay hon de thay the. ken van dung cho mid. Moi luom ve mot cap Tad 2001, cap nay duoc coi la 1in driver noi tieng nhat giua dam JBL va Altec, cap nay dac biet co the dung cross tu 800Hz tro len, high len cao toi 20Khz flat cho nen khoi dung tweeter. Tad 2001 lon hon JBL175 gan gap ruoi, dung la co chat luong.


     

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  9. Cau Yem

    Cau Yem Advanced Member

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    Em cùng bác Unison dự định dùng cả hai. Bọn em đã order một đống ribbon tweeters (đủ sizes, đủ cở) rồi bác ơi! :D
     
  10. Unison250th

    Unison250th Advanced Member

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    May cai ribbon nay rat tien loi, mod rat de. Bay gio chi can di kiem nhung loai aluminum, titanium foil ve thay nghe thu, cang nhe cang tot, nhe hon thi efficiency cao hon, tieng se nhanh hon. Tot nhat la dung vang la 24K bac CY, vàng lá mong nen rat nhe, chi co cai power khong duoc cao, nhung tweeter nay co 100db thi dau can nhieu power?

     

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  11. Unison250th

    Unison250th Advanced Member

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    Milpitas man gets 25 years to life for dog slaying — his third strike

    By Linda Goldston

    lgoldston@mercurynews.com
    Posted: 09/25/2009 06:46:26 PM PDT
    Updated: 09/25/2009 08:32:26 PM PDT

    A Milpitas man with a long history of violence was sentenced Friday to more than 25 years in prison for beating his former girlfriend's cocker spaniel to death with a hammer, a third strike for Alex Castro.
     
  12. Hai Lúa-USA

    Hai Lúa-USA Advanced Member

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    Tôi cũng thích ribbon. Dàn máy trong phòng living room là cặp ESS AMT1A dùng ribbon cho mid+tweeter nghe khá mạnh tuy phần bass (10" woofer) chỉ ok. Nhưng trong phòng nhỏ thì ok. Cái project ribbon+horn coi bộ hay đó 2 bác nhe ... Chừng nào xong?
     
  13. Unison250th

    Unison250th Advanced Member

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    ESS AMT1A ribbon khong giong nhu ribbon tren tu cạch cau tao voi am thanh.

    ESS giong nhu accordeon, dan ra va co vao de tao ra am thanh( ESS squeeze diapragm), nhung loai ribbon thi day lan song ra truoc va sau (push diaphragm front and back nhu piston). Diaphragm cua ESS nang gap may lan ribbon thuong (aluminum ribbon can nang khoang 0.020 gram), nen am thanh cua ribbon nhay hon ESS nhieu..

     
  14. Unison250th

    Unison250th Advanced Member

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    Vung bay area minh cung nhieu tiem ban do choi chu may bac:

    Music Lovers Audio (Berkeley and San Francisco)
    Joseph Audio, Era, Paradigm
    http://www.musicloversaudio.com/
    510-558-1000 415-345-8111

    Access to Music (San Rafael)
    B&W, Dali, Linn, REL Acoustics, Definitive Tech.
    http://www.access-music.com/
    415-453-3936

    Performance Audio (San Francisco)
    Vandersteen, Gallo
    http://www.performance-audio.com/
    415-441-6220

    Audio Vision (San Francisco)
    Naim, Quad, Dali, Opera
    http://www.audiovisionsf.com/
    415-614-1118

    True Sound (Campbell)
    Spendor, Audio Note, Ruark
    Vintage repair
    http://www.tsound.com
    408-370-7578

    R.B. Home Cinema and Ultra Audio (Dublin)
    Quad, Spendor
    http://www.rbhomecinema.com/audioproducts.html
    925-918-3714

    Audible Arts (San Jose)
    Dali, Reference 3A, Von Schweikert, NHT
    http://www.AudibleArts.com
    408-248-1196

    The Analog Room (San Jose)
    Sonus Faber, Quad
    http://www.theanalogroom.com/
    408-971-6158

    Stereo Unlimited (Walnut Creek)
    Magnepan, Opera, Audes
    http://www.stereounlimited.com/Home.htm
    925-932-5835
     
  15. Unison250th

    Unison250th Advanced Member

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    tiep theo
    Soundscape (Santa Rosa)
    Epos, Nola, Usher, Vandersteen, Wharfedale, Klipsch
    http://www.soundscapeav.com/
    707-578-4434

    The Tweak Shop (Santa Rosa)
    Focal/JM Lab, Nola, Audes
    http://www.tweakshop.com/
    707-575-8626

    Audio High (Mountain View)
    Energy , Epos, Living Voice, Usher
    http://www.audiohigh.com/
    650-964-4000

    San Francisco Stereo (San Francisco)
    Dynaudio, B&W, Canton
    http://www.sfstereo.com/
    415-861-1044

    David Tonelli (Oakland)
    For repair, mainly of tube equipment
    510-444-1200

    APL Hi-Fi (East Bay)
    Digital audio player modifications
    http://www.aplhifi.com/
    510-972-0067

    Specialty Audio Source (Antioch)
    Aliante speakers
    http://www.specialtyaudiosource.com/
    925-565-0588

    Future Sound (Burlingame)
    B&W, Gallo, Thiel, Martin Logan, Wilson
    http://www.futuresoundav.com/
    650-342-1476

    The New Audible Difference (Palo Alto)
    Thiel, Linn, Gallo, KEF, Magnepan, Wilson
    http://www.newaudibledifference.com/
    650-328-1081

    Jeff Jahnke HomeGear
    Address: 1452A El Camino real, Menlo Park, CA 94025
    Tel: (650) 323-3030 avguru@sbcglobal.net
    By appointment only. A wide variety of high and low end products. Main speaker line: Pro-Ac.
     
  16. Unison250th

    Unison250th Advanced Member

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    Bob Bergner
    Tel: (925) 918-3714 http://www.rbhomecinema.com
    Ayre, Bruce Moore, Cardas, Genesis, McIntosh Marantz, Quad and TAG plus others. Acoustic Measurements and Speaker Setup

    Reflection Audio
    http://www.reflectionaudio.com
    (415 )479-1319 stephen@reflectionaudio.com
    Address: 170 Mt. Lassen Drive, San Rafael, CA 94903
    Tel: (415) 479-1319

    Silent Lucidity
    Jim Volpatti jvolpatti@earthlink.net
    Tel: (415) 928-2990
    By Appointment only.
    Bel Canto, Electrocompaniet, Manley Labs, Audio Refinement, Cambridge Audio, JA Michell Engineering, Koetsu, SME, Benz Micro, Focal-JMlab, Totem Acoustic, Amphion, Analysis Plus, Shunyata Research, Isoclean, Dream Vision;
    Plus Rives Audio acoustic consulting and design.
    Jim is a full in-home service dealer.

    David Tonelli
    Tel: (510) 444-1200
    Oakland (lower Piedmont)
    Specializes in servicing vacuum tube equipment, FM tuners (tube or solid state), and professional recording gear.


    Audio Image Ltd
    Bob Kehn bkehn@comcast.net
    Tel: (510) 654-7235
    Emeryville, CA 94608
    Epiphany Audio, Sound Lab, Oasis Audio, Tom Evans Audio, Aesthetix, Gamut, Audio Note, Audio Logic, VPI, Transfiguration, Lyra, Benz, Koetsu, Silversmith Audio, Kimber Select, Rix Raxs, Finite Elemente.

    Ultimate Audio Tom Bourret
    Tel: (707) 953-7100 tbourret@comcast.net
    Authorized dealer for Sound Lab speakers, Wolcott and Parasound amplifiers.

    The Tweak Shop (Santa Rosa)
    Tel: (707) 575-8626 http://www.tweakshop.com/
    Elliot Kallen

    Audio by Laurel Pacific Systems (Los Gatos)
    http://www.laurelpacificaudio.com/
    Sunil Mohan laurel_pacific@yahoo.com
    Bay Area dealer for the following brands: Bel Canto Design, Harbeth, Lavardin, Velodyne, Acoustic Zen, Denon, Adcom.
     
  17. Unison250th

    Unison250th Advanced Member

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    Tailored Technology
    http://www.tailoredtechnology.com/
    Michael Jacobs, Sales Manager and Audio Consultant mikej@netmagic.net
    Tel: (408) 734-5164 (by appointment only in Sunnyvale)
    Lines represented include: Vandersteen, Theta, BEL (Brown Electronic Labs), Aesthetix, BG (Bohlender-Graebener), Denon, Clearaudio and others.

    Witchdoctor Audio
    Speaker Brands: Cain & Cain, Omega, Epos, Rethm
    2072 Antioch Court
    Oakland, CA 94611
    phone: 510-919-5104
    by appointment only
    http://www.witchdoctoraudio.com
    askthewitchdoctor@witchdoctoraudio.com

    Pitch Perfect Audio
    Matthew Rotunda 415-244-9310 pitchperfectaudio.com
    Demonstrating the renowned LATOUR Full Field Coil Loudpeaker, meticulously hand crafted tube stereo electronics and Shindo 301 Turntable - from the brilliant Ken Shindo.
    DeVore Fidelity Loudspeakers, Auditorium 23 Products, Euphya Audio Products, EMT, Living Voice Loudspeakers, Leben HiFi, 47 Laboratory

    Bay Area Audio
    http://www.bayareaaudio.com
    408.255.0735

    Blue Moon Audio (Pleasanton)
    BC Acoustique, Epos, Trenner & Friedl
    http://www.bluemoonaudio.com/
    510-325-2440

    Harmony Audio Video (San Francisco)
    B&W, Gallo
    http://www.harmonyaudiovideo.com
    333 W Portal Ave
    San Francisco, CA 94127
    (415) 661-2525

    The A/V Room (Fremont)
    PSB, Totem
    http://www.theavroom.com/
    510-713-1241

    World of Sound (Mill Valley)
    35 Reed Boulevard
    (Behind Strawberry Shopping Center - right off Rt. 101 on the northbound side)
    Mill Valley, CA 94941
    a/d/s, Gallo, Canton, KEF
    repair facility that fixes anything - tube, SS, vintage
    http://www.worldofsoundmarin.com/
    415-383-4343

    Taurus Audio (Newark)
    JM FocalLab, Almarro, Melody Valve, modified Toshiba DVD players, NOS tubes
    5680 Thornton Ave.
    Newark, CA 94560
    Owner: Louis Ma
    510-713-9893

    The Sound Well (Berkeley)
    repair, used, vintage
    http://www.thesoundwell.com/
    510-549-2126
     
  18. Unison250th

    Unison250th Advanced Member

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    Audible Ear (Lafayette)
    speaker repair, used, vintage
    1008-B Oak Hill Road
    Lafayette, CA 94549
    925-284-8166
    Open 10am to 3:30pm Wednesday through Saturday

    Sertech Electronics (San Jose)
    repair, used, vintage
    http://www.sertechelectronics.com/
    (408) 267-3288
     
  19. Unison250th

    Unison250th Advanced Member

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    Co ai muon di nghe ampli Spectral khong o Sausalito:

    Spectral Audio Event In Berkeley Store October 10
    October 10, 2009
    @ 2:00pm
    Music Lovers would like to invite you to the west coast premier of the dma360s II, Spectral's newest amplifier. You'll spend an evening listening to the latest Reference Recordings, and will meet Rick Fryer, CEO of Spectal Inc. We will be demonstrating two Spectral systems, the Reference 360s, DMC30SS preamp and the SDR4000s Reference CD Playback system. The Foundation products, DMA100s and the DMC15ss will also be available for audition. Both systems will feature Wilson speakers, the new Wilson MAXX3 and the Wilson Sasha. There will be plenty of refreshments, and each guest will receive a free RR sampler to enjoy.
    Spectral is well-known in the audiophile community as a high-watermark for extreme performance and it is our pleasure to be part of this unveiling. Please check back for more details on the specifics of the event as they unfold.
     
  20. Hai Lúa-USA

    Hai Lúa-USA Advanced Member

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    Bác nói đúng. Hai loai ribbons này khác nhau về cấu tạo và nguyên tắc. Nhưng cái ESS cũng nhạy đó chứ.

    http://www.precide.ch/eng/english.htm
    94DB sensitivity

    ---
    Anh em nào biết nấu ăn (hay vợ) cho hỏi cái này. Làm chả giò kiểu người mình làm khác Tàu là mình làm bánh tráng bằng gạo chứ không là bột mì. Nhưng bánh tráng thì khi chiên dễ bị bể. Anh em nào biết bí quyết chiên sao không bể thì cho tôi biết nhé. Mình thí nghiệm vài loại bành tráng dày mỏng khác nhau thì thấy bánh dày khó bể hơn, nhưng ăn thì ko ngon ba72ng bánh mỏng.
     
  21. NoBG

    NoBG Advanced Member

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    Bác bửa nào làm chả giò đãi anh em 1 chầu, tui bài cho bác bí quyết liền. bảo đảm chiên không bể không nám đen 1 bên.
     
  22. Hai Lúa-USA

    Hai Lúa-USA Advanced Member

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    Dể mà bác Vũ. Chúng mình bửa nào gặp nhau thì đem chả giò lên, nhưng mà phải chắc ăn không bị bể không nám đen trước cái đã. Có vài người họ khuyên dùng bia để tráng bánh, còn chiên thì dùng kẹp trở qua trở về thì ko bị nám. Đúng không bác?
     
  23. Unison250th

    Unison250th Advanced Member

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    Mo ra coi thu Aurum Cantus ribbon, lam co chat luong. Theo minh thay thi AC hon loai Fountek o cho thay diaphragm. AC dung 2 con oc o moi dau diaphragm, cho nen thay rat de adjust diaphragm cho dung vi tri roi xiet ôc lai. Fountek khong dung con oc ma dung loai kim thep nhu cai wedge, nghia la khi gan diaphragm phai dung suc manh de danh cai wedge vao thi mieng wedge nay kep chat diaphragm, khong tot vi cai shock se lam lech diaphragm.Neu nhin ky hinh thi thay moi ben diaphragm chi cach cuc nam cham mot duong ho nho bang soi toc.

    Cai nay modify khong kho, bay gio chi can kiem nhung mieng Aluminum hoac titanium hoac Beryllium hoac AU (gold).... gan thu de thi nghiem.
     
  24. NoBG

    NoBG Advanced Member

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    Bác Hai có PM.
     
  25. Hai Lúa-USA

    Hai Lúa-USA Advanced Member

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    Rất có lý bác Vũ ơi. Sẽ thí nghiệm và báo cáo sau ... Cám ơn bác nhiều..
     

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