Results 1 to 4 of 4

Thread: Robert Koda Takumi MC One Reference Phono Stage

  1. #1
    Member sickophant's Avatar
    Join Date
    May 2013
    Location
    Warszawa, Polsce
    Posts
    54

    Robert Koda Takumi MC One Reference Phono Stage

    ...
    Attached Images Attached Images   
    Last edited by sickophant; 04-22-2017 at 10:43 PM. Reason: Leaving forum
    << Subscribe to 4ZZZ >>

  2. #2
    VIP/Donor [VIP/Donor] jfrech's Avatar
    Join Date
    Sep 2012
    Location
    Austin
    Posts
    1,517
    Not sure if it's been posted on WBF. Apparently has some unique circuit designs so it's not a LCR or a passive riaa.

    Quote for Audio Exotics
    "1. What is wrong with conventional RIAA equalization?

    There is nothing wrong with RIAA. The challenge is how to apply the reverse equalization as is required. Since the beginning of vinyl, there are only two ways to do it in the analog domain. One is called “passive RIAA” primarily used by many tube electronics manufacturers. Then there is another variation of passive RIAA called “LCR”. Under this approach, the high frequencies are attenuated by 100X at 20khz and 10X at 1khz during the amplification process. This is also known as the “brute force” approach. Another way is the “Active RIAA” approach, which uses tremendous amount of negative feedback in the vicinity of 40db to 60db.

    For a number of technical reasons, I reject both methodologies. I have successfully developed a new approach. Since I am waiting for patent protection, I would not disclose the technology at this point. Suffice to say, I do not need to attenuate 20khz by 100 times thereby avoiding many problems. I do not need to use 40-60db of negative feedbacks thereby avoiding another set of problems. "
    Speakers: Rockport Altair 2
    Pre & Amp: Nagra HD Pre & Amp
    Cables: Transparent Magnum Opus on sources, Opus Gen 5 Pre to amps & speaker
    Power Transparent Opus, Opus Source Power Cords & Opus Power Isolators
    Digital dCS Vivaldi full stack w/ Transparent Reference XL Digital cables
    Phono: Grand Prix Monaco 2.0 TT, Spiral Groove Centroid, Clearaudio Goldfinger Statement, Nagra VPS/VFS/MPS
    Racks: Grand Prix Audio Silverstone F1 (x4)

  3. #3
    Im sure its a wonderful piece. Robert Koda gear is some of the best there is.

  4. #4
    Member Sponsor Senior Member
    Join Date
    Nov 2013
    Posts
    176
    Interesting piece. Does it have more than one input or an option for a second input?

Similar Threads

  1. Robert Koda K70
    By Bobbi in forum Power Amplifiers and Preamplifiers Forum
    Replies: 5
    Last Post: 01-13-2018, 03:15 PM
  2. Replies: 5
    Last Post: 12-28-2015, 10:00 PM
  3. Robert Koda K-10 - Tone Audio long term review...
    By jfrech in forum Power Amplifiers and Preamplifiers Forum
    Replies: 12
    Last Post: 09-07-2015, 10:55 PM
  4. Robert Koda Takumi K15 Preamp
    By Geshi in forum Power Amplifiers and Preamplifiers Forum
    Replies: 65
    Last Post: 08-31-2015, 06:12 AM
  5. Robert Koda Takumi K-10 preamplifier test and review
    By Matej Isak in forum Power Amplifiers and Preamplifiers Forum
    Replies: 26
    Last Post: 02-05-2013, 02:20 PM

Tags for this Thread

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •