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  1. tony ky ma

    Ultraanalogue Recordings new recordings from June 11 concert

    about this recording, the mic amp had been upgraded , I add 16 caps more to the amp in by pass position each position not only one cap is carry two more smaller value cap for more signal go through , tubes are 1950's we 300b and we 437a. if you have chance to compare the analogue version (tape)...
  2. tony ky ma

    Our WE300b based tape playback amp

    I did a all tube amp direct from head, EQ by a simple passive LCR filter no calibrate (A80's section is silicon feed back type) transformer coupling and out put ( not silver copper only) very simple just like a phono RIAA amp, sound good tube use 5687 or 7119 or 6900 of cause best sounding is...
  3. tony ky ma

    Our WE300b based tape playback amp

    Hi Victor I am Tony who built the amp . the construction of A80 playback amp is in 3 parts is EQ calibrate and out put stage. the amp's in put is from calibrate part's out put before A80's volume control to a silver inter stage transformer 1:2 then 300B and a out put transformer 600 ohm output...
  4. tony ky ma

    How I made head direct out of Studers

    Out broad amp is a kind of up grade of tape recorder but how to connect to the head is a question. closer is better too far away (too long cable or weirs) will create problems. here what I did with A80RC A810 and PR99 In A80RC very simple use two extra card (pictures) to replace repro card...
  5. tony ky ma

    Ed Pong And Ultraanalogue Recordings Have Hit Another Home Run

    I have a box set (3 vinyls) of Audio Technical Records by DENON, this testing vinyl produced by professor Takeshi Itow doctor of engineering Waseda University, Tokyo Japan. the recording is for people to check their play back system, it contain sweep frequency, band noise, phasing, musical...
  6. tony ky ma

    Reel to Reel Head Wire out and associated topics

    For a general R2R consumer to enjoy pure analogue sound of music in play back, the most important things for them to do is often clearing heads' surface and tape path too and demagnetize heads . a demagnetizer will not cost too much money than a set of test tape but can give a great help in...
  7. tony ky ma

    Reel to Reel Head Wire out and associated topics

    After we placed a battery power to the repro amp of A80 to replace the stock voltage regulated power supply and found improvement but in the first try same to record amp was disappointed , there was some radio broadcasting mixed into the recording too, we found long wire and bad routing caused...
  8. tony ky ma

    Reel to Reel Head Wire out and associated topics

    I don't know how to measure difference of transparency, emotion,sound stage, sound density, etc, all I know comparison will tell about, of cause basic tuning we did every time before recording by qualify person still came out so different in each modification of transparency, emotion, sound...
  9. tony ky ma

    Reel to Reel Head Wire out and associated topics

    Hi Tang That switch is for you when in fast winding for tape will not touch heads, you no need pair of UV meter fix to amp unless you want to watch when playing. to buy a HP AC volt meter in old analogue type (from Ebay) for adjusting out put level , also you can buy two of them for both...
  10. tony ky ma

    Reel to Reel Head Wire out and associated topics

    maybe a 180 volt tube repro amp power supply in a battery supply for next step tony ma
  11. tony ky ma

    Reel to Reel Head Wire out and associated topics

    Is Studer the best in the world ? yes maybe in their golden age but by no mean it can't be improved today ! once people put their hand into the machine of modification will losing resell value but you can ask Ed will he sell his two Studer A80 in what ever of money will offer, the changed after...
  12. tony ky ma

    Reel to Reel Head Wire out and associated topics

    I am sure that is the reason, although I don't know the detail of A820 but I know A820 has same looking transport of A80 and circuitry same as A810, then I think it may also has a pre amp behind the head too and the guy modify the deck for you is place the switch selector before the repro amp...
  13. tony ky ma

    Reel to Reel Head Wire out and associated topics

    Doshi in Mike's A820 and Steve's A810 both working OK for Ed's tape, I checked with the Studer A810 service instructions the transport is no change but different year made in different electronic circuit design some with transformer but some is transformerless because of different impedance head...
  14. tony ky ma

    Is Reel to Reel Worth it to you at $450 or $500 a pop?

    It is hard to say worth $ or not, I just brought two pair of Hejiri inter connect cables back from Japan for my friend's request paid $6k but today you can only just pay under $2k for a 65" TV, tube amp came back after they completely disappeared and most Hi End market of today is tube amp...
  15. tony ky ma

    Reel to Reel Head Wire out and associated topics

    Yes he said when he play Ed's he connected A820's out put to his pre amp (line stage ) not Doshi, and he has a switch selector for head to Doshi or back to A820, and I don't know what type head in his A820, in A80 RC and A80VU has different impedance head, RC type's head has higher impedance...
  16. tony ky ma

    Reel to Reel Head Wire out and associated topics

    One more thing, you said a tiny adjustment will have a big change in loudness that means even a low out put tape still has a too much gain in the amp's out put so that is why even the lowest the gain still over load for Ed's tape. I guest that is the head has higher out put for Doshi's gian...
  17. tony ky ma

    Reel to Reel Head Wire out and associated topics

    Yes your connection is correct , Ed's tape has a 1k Hz signal test tone recorded in the beginning of each tape what you can do is to have a level tester or a VU meter connect to the Doshi out put and play the test tone to see if you can adjust to the out put in 0db, if you can make this happen...
  18. tony ky ma

    Reel to Reel Head Wire out and associated topics

    Can you tell me how you connect the Doshi to your A820? if direct from the head and how you play Ed's tape by the stock A820 itself ? as I know that Doshi is a Hybrid design most of it is tubes but it needs more gain for those low out put tape in low level recorded (250nw) so he put one more in...
  19. tony ky ma

    Reel to Reel Head Wire out and associated topics

    I have no knowledge of cutting vinyl but I do know that direct cut vinyl is the best than others as you said a digital time delay circuit in between signal and cutter then a digital sound will be added to the vinyl sound, in my knowledge even a analogue power supply for a analogue amp...
  20. tony ky ma

    Reel to Reel Head Wire out and associated topics

    Copies from master tape can't be quality 100% same as the master especially transparency must down for some %, people who using out broad play back amp instead stock amp in their deck will understand what happen . for vinyl cutting sound quality is depend the in put quality too, most of today's...
  21. tony ky ma

    Tape Head Rewire pics

    I do believe that changed in big different. better or worse will depend to the listener himself , even just change some caps of the original in the circuit will change the sound quality too, measurement can't tell the difference tony ma
  22. tony ky ma

    A must Have reels?! You choose!

    Not bad I started with the pr99 too,one tweak you can try is to use the monitor out instead of the regular out can sound better if your line stage has enough gain enjoy tony ma
  23. tony ky ma

    New Release from Edward Pong; stunning sonics!

    Steve It will have a good time for us too and also you can listen to the sound of real master tape not copy tony ma
  24. tony ky ma

    New Release from Edward Pong; stunning sonics!

    what factors will be more important for a good recording ? in my experience those can't be measured factors like transparency, emotion, sound stage, are more important than those measurable like frequency respond or distortion because those measured numbers can be changed by adding heavy NFB in...
  25. tony ky ma

    New Release from Edward Pong; stunning sonics!

    CCIR & NAB curve are the kind of frequency respond and that is only related for the tape head and tapes in recording and play back, if they are working right then there is no different between or which one is better than other. reason is more other frequency responds like mic amp speaker room...
  26. tony ky ma

    The Sound of the new February 11 2017 UltraAnalogue Narita & Yun-Yang-Lee Recordings

    Thank for the appreciation key point of this time is the pure DC (battery) power supply, if you can compare the last time Beethoven violin sonata no.9 same Tatsuki & YY, WE 300B is the same but not battery power you will know the difference , in this point I would like people can understand...
  27. tony ky ma

    My Tastes Are Very Simple ...

    Hi Mike I hope you will find out the difference as I did from this new recording with battery powered when they release, that is the sound of silence , that is the dark silence period between two music signals and you still feel live there not dead. compare to the silence sound from a no...
  28. tony ky ma

    My Tastes Are Very Simple ...

    I will not listen music which I don't like (heavy metal rock etc.) too no matter how good they are but I will only pick the music of I like with better performed and recorded tony ma
  29. tony ky ma

    Spending some time last week with more UltraAnalogue Recordings. What a week.

    Do audiophile really need recording by themselves today ? Audiophiles in today looking for tape because some thing vinyl does not have, but quality of recording is the first issue , if copy by themselves from digital or vinyl or other tape will not be the point , should be to make your own...
  30. tony ky ma

    Organ and choir recordings in analog IEC 15ips tape format

    I have B62 and A80 both machine and know them quite well, for recording calibrate you need calibrate the play back with a test tape first and set level meet to the test tape, also need a VU meter for B62 for the job. and then use a signal generator for recording signal to set the level and bias...

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