kevzep
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Mar 24, 2019 at 3:18 AM
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Auckland, New Zealand, Way down in the Pacific
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Live Audio Engineer

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kevzep

Its all about the Music, Male, from Auckland, New Zealand, Way down in the Pacific

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Viewing thread 4 Channel Rear Amp Options, Mar 24, 2019 at 3:18 AM
    1. quartersaw
      quartersaw
      No idea what shipping would be to N.Z.
      1. kevzep
        kevzep
        Thanks for looking into this I appreciate your efforts, I'll wait and see how much its going to cost me from the local supplier and make a decision then. Yes my 452 was manufactured in December 2012, so would have been one of the first for sure.
        Mar 11, 2019
      2. quartersaw
        quartersaw
        Happy to assist!
        Let me know if the local source falls through priĀ¢e wi$e.
        Mar 11, 2019
    2. quartersaw
      quartersaw
      My Mc452 is ACF3782....
    3. quartersaw
      quartersaw
      If Mcintosh is following the same format for serial numbers which start at XXX1000, your Mc452 would be the 22nd example to roll out of the factory.
    4. quartersaw
      quartersaw
      New York State sales tax would be a little over $12, and shipping would be in the $10-$15 range.(I believe that Mcintosh has a minimum cost for shipping. (I bought a few pilot lamps for the Mc2300's, and I think the min. shipping was $10) I can cover payment on this end until the meter is on its way to you.
    5. quartersaw
      quartersaw
      I called Mcintosh this morning, and the meters are in stock. They will sell me one for $154.62 U.S. plus tax & shipping. :-)
      Let me know if you would like me to order one.
    6. quartersaw
      quartersaw
      Kev,
      I could make an attempt to contact Mcintosh, to see if they would sell me a meter for the Mc452.
      If I could obtain one, I'd ship it to you. My Mc452 is of course, is still under warranty, and I don't know if they would let a significant part go out the door for a model that is still current. At the very worst, all that they can do, is say no.......
      1. kevzep likes this.
      2. View previous comments...
      3. quartersaw
        quartersaw
        I'll give it a shot.
        Is your unit serial number range AAT****, or ACF****? I don't want your serial number, but just in case there is a production difference.......
        I have spoken to the parts dept. @ Mcintosh several times, and the people who I have dealt with there, could use a few lessons in customer service... If they say 'yes', if you want it, I'll buy it
        Mar 9, 2019
      4. kevzep
        kevzep
        My serial number is ACF1022. Of course as soon as I start looking at this issue, the meter starts working again, hilarious!! It will stop again at some point though...its like its afraid of me and starts working.....Thanks for looking into this.
        Mar 10, 2019
      5. kevzep
        kevzep
        I finally heard back, they are getting me a price, so still see if you can get one as I am sure it is likely to be a lot cheaper than the robbers here in NZ...
        Mar 10, 2019
    7. Stereo
      Stereo
      Hi Kev,
      I emailed you at your kevzep@xnet.co.nz a couple days ago.
      I have been testing many components & can't find a thing wrong.
      Do you have any idea why I get extreme high mV Bias with minimal variac voltage?
      PS Voltages are good.
      Not much else has been solved since my mess to your main email.
      What should I test etc.

      Thank You, Bru
    8. Stereo
      Stereo
      Hi Kev,
      Perhaps the fault are the STV-3H Diodes. However, only the left CH was bad and I have the very negative Bias on both CH's.
      Maybe I am not brave enough to bring the variac up higher than 30VAC (I am in 120V USA). But I have never seen such a negative voltage before.
      I had the polarity on the Test Point hook-up correct.

      Would 4 - 1N4148's replicate the STV-3H for troubleshooting?
      Thank you very much,
      Bru
      1. kevzep
        kevzep
        The negative part is irrelevant. The important and only relevant part is the actual number, and 430mV is extremely high.
        The Voltage drop of a STV is about 1.4VDC, so use 3 x 1N4148 in series.
        Bare in mind that unless the leg or legs have actually broken off the STV diode, it is probably OK. I have actually never seen one fail in 20 years....
        Drop me a private message as this is hopeless with 420 characters.
        Dec 16, 2018
    9. Stereo
      Stereo
      Hi Kev,
      I have a Sansui G-7000 that had blown Left CH Outputs and drivers. I replaced every faulty piece. PS Rails check out good. I BIAs as I bring up on a Variac to reduce risk.
      I get readings like negative 430mV.

      Do you have any idea why I get such Negative Bias Readings?
      I have rebuilt may Sui's - never had this happen before.
      Thank you very much,
      Bru
    10. NikonNick
      NikonNick
      Hey Kev, I have an SX-750 that I bought used & have it connected to a cd, tape and Bluetooth. Runs real nice but has a slight hum when powered on, nothing major and not really able to hear it when music is playing. I only really notice it when powering it down and the hum disappears. Don't know if it has ever been serviced but I suspect not. Something to worry about or is that par for the course ? Cheers, Nick
      1. kevzep
        kevzep
        Hi Nick, might just be a bit of mechanical hum from the transformer, however it could also be a number of electrical issues as well....Although really sounds like a normal power up surge from what you're describing....hope that helps...Cheers Kevin
        May 23, 2018
        NikonNick likes this.
      2. NikonNick
        NikonNick
        Thanks Kev...... will live it for now, don't really want to pull it apart it that's the only issue. Now I know you're around will holler if I need it looked at in the future. Cheers
        May 23, 2018
    11. Belmont24
      Belmont24
      Hi, I have an SX1250. She is awesome but a couple of things went wrong with her and she was repaired each time. I haven't used it since. I have heard you are very good so was wondering whether you could check her out. I wonder whether it might be a capacitor issue. I live on the North Shore so not too far from you.
      Cheers
      David
      1. kevzep
        kevzep
        Hi David,
        My email address is kevzep@xnet.co.nz.
        I can certainly have a look at you SX1250, I can assess and look at what needs doing.
        I am away this weekend, but if you wanted to drop it off tonight or Monday I am home most of the day, around Lunchtime would be ideal, or in the evening. Let me know, I live just up in Warkworth.
        Cheers
        Kevin
        May 17, 2018
    12. turboduck
      turboduck
      Hi Kevin,

      I have a Sansui G7000 and 331 receivers that need some work done. Would you be interested in looking at them?

      I live in BeachHaven so not too far away :)
      cheers

      Al
      1. kevzep
        kevzep
        Hi Al,
        Yep, I can have a look at those, what do you need doing? Tuner alignment (I bet the dial pointer is off a bit)? General service?
        I live in Warkworth which is not too far away, or you can drop at the office in Avondale, I go in there fairly regularly....
        Let me know, email address is kevzep@xnet.co.nz
        Cheers
        Kevin
        Mar 22, 2018
    13. Chris Hall
      Chris Hall
      Hi Kevin - Happy New Year, we are in Knights Rd just up from Beulah, its a small world! I will be heading up Warkworth way fairly soon so could drop it off if you let me know how to contact you, I am not in any hurry to get it back. cheers
      1. View previous comments...
      2. kevzep
        kevzep
        Hi Chris,
        Are you still interested in getting the 777 repaired? My real job is slowing down a bit so I am getting rid of these other Sansui jobs around here and could look at it soon.
        email me on kevzep@xnet.co.nz easier than communicating on this message board
        Cheers
        Mar 22, 2018
      3. Chris Hall
        Chris Hall
        Hi Kevin - I got a bit side tracked, but am back in AKL full time now, yes I am still interested and happy to drop it up any weekend that suits or let me know if you are heading down this way.
        Cheers
        Chris
        Oct 8, 2018
      4. kevzep
        kevzep
        Hi Chris, Flick me an email on kevzep@xnet.co.nz. I'll be around this weekend, I am not intending on coming to Auckland this week, but if I do I'll let you know. Good timing, I have window to get this done.
        Oct 8, 2018
    14. Chris Hall
      Chris Hall
      Hi Kevin I have an AU777 that I inherited from my Father, he bought it new in Japan on a business trip almost 50 years ago and I'd like to keep it going for another 50!. I have been looking for somewhere to send it for a full overhaul. Do you offer a repair service or if not is there anyone you would recommend in Auckland? I'd really appreciate your advice :) cheers Chris
      1. View previous comments...
      2. Chris Hall
        Chris Hall
        That's great news - I am in Rothesay Bay on the North Shore so would be very happy to drop it off to you at a time that suits - cheers and Merry Christmas!
        Dec 22, 2017
      3. kevzep
        kevzep
        Great, sorry, yeah sometimes I get messages from people in the USA not realizing I am on the other side of the world....so I always have to ask..
        I actually live in Warkworth, originally from Murrays Bay, I used to rent a batch in Beulah Ave in the 80's...anyhoo, yes I can give it an overhaul. I am of course really busy.
        Dec 22, 2017
      4. kevzep
        kevzep
        I do this in between my normal full time job. I have 4 perreaux's for repair, a Sansui QRX8001,777,and 5001 I am overhauling, so a full house at the moment, and at this time of the year i am really busy with my full time job, so realistically it would be sometime about Feb before I could get to it.
        Let me know if that works....
        I come to Auckland regularly so I could pick it up perhaps,whatever works
        Cheers
        Kevin
        Dec 22, 2017
    15. quadklipsh
      quadklipsh
      thanks kevin
    16. quadklipsh
      quadklipsh
      hi
      this is my first pm to you perhaps.
      im a happy owner of a few vintage amps . that all needed restoration. my biggest achievement has been the restoration of sansui AU 9500 about two weeks ago.
      i mostly listen to ALL GENRE esp jazz.

      can you give the following amps a rating out of 10....
      KENWOOD SUPREME 600
      LUXMAN L-550X
      SANSUI 9500
      MARANTZ PM-6

      thnx and waiting
      1. kevzep
        kevzep
        Okay, I have never heard any of those amps except the AU9500 which as you know, I don't rate particularly highly.
        Sorry I could not be of more help.
        Regards
        Kevin
        Oct 5, 2016
    17. JBL250ti
      JBL250ti
      Hi Kevin, I'm the proud owner of 2 JBL B460 18" subs and have the opportunity to drive them with a NOS Crown MT 5002VZ. I was wondering what your thoughts were since you are the Crown expert here. Would you advise using this amp over a pair of Aragon Palladiums? It would be used in a home environment with JBL 250ti's biamped with Levinson 333 and 336 amps. Thanks much Kevin!
      1. kevzep
        kevzep
        Hi, First thing I would do, is go and see it and fire it up and see if its idle noise is ok for you. Also will need to checked out electronically to make sure its healthy. They have a larger than normal power plug on them, but you can fit your standard power plug for domestic use, let me know if you want some help checking it out.
        Oct 18, 2015
    18. arquesf
      arquesf
      Hi Kevin, I follow all your indicaciones about the sansui au-999 amp, and first of all a lot of thanks for share with us.I did the bass eq and preamp mods and I am very happy with the results.Now Im trying to change the big caos of the main supply and I will like to do with mundorf 4 pole caps, I think my au999 with my large original advents speakers will sound very good.My problem is that I'm not sure how to connect the 4 pole in the au999. Do you know how, perhaps Could you help me?.Thanks from Spain.
    19. fishyman1
      fishyman1
      Kevzep hi, I have just been reading forums about G series sansui and saw your name and that you are in New Zealand.
      I live in Nelson and have a Sansui obsession so was just wanting to meet like minded people.
      Was going to list my gear but think I will hold off for now.
      Anyways be good to catch up some time.
      Thanks
      Steve
    20. bluesfan
      bluesfan
      Hello
      I am going to try your sansui au 999 mods and was wondering what the tolerances are for the resistors +_10% ? And if so what was your source for these resistors they dont seem to be readily available. I appologize for my ignorance here for such a simple task.
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  • About

    Gender:
    Male
    Location:
    Auckland, New Zealand, Way down in the Pacific
    Occupation:
    Live Audio Engineer
    I am 51 years old, I like doing things the old way

    Have been a serious guitarist for 32 years, Motorsport particularly WRC, Magnum PI , and Ferrari's, I also like listening to music mostly on vinyl.

    Signature

    Main McIntosh MC452, MEN220, C48, MR78, MR80, Crown Macro-tech5002VZ, L'acoustics 8xTi, SB115 Thorens TD125MKII/SME3009, Tascam 122MKII
    Music room, Sansui G22000, Crown Macro-tech 5002VZ, Lake Contour, JBL L7
    In the Lab, Sansui G7700, JBL4412, Technics SL1200
    In the Bedroom, Sansui G9700, JBL4410A