Yamaha b-3

Discussion in 'Yamaha' started by witon, Mar 14, 2017.

  1. witon

    witon New Member

    Messages:
    6
    I was reading the description of yamaha b-3. The best v fet maybe?

    It say it is class A up to 1 W. IS that possible I thought all v fet ard class A amp.
     
  2. zaibatsu

    zaibatsu Active Member

    Messages:
    164
    I can't see any mention of class A in the brochure, but those who have heard all seem to suggest the B-3 is the better sounding of the vintage v-fet pieces.

    Don't know about best though, there is a modern version of that amp (inspired by the original B-1 and in the shape of the B-3) made by a company called Digital Do Main in Japan. It's called the B-1a and at the heart is the purpose-made 2SK77b, and the early stages are also v-fets (similar to the B-1).

    You can read about it here if interested:
    http://www.6moons.com/audioreviews/roadtourdigitaldomain/visit.html
    http://www.techradar.com/reviews/au...amplifiers/digital-do-main-b-1a-646182/review
    http://www.hi-fiworld.co.uk/amplifiers/47-transistor/112-digital-do-main.html

    [​IMG]
     
    Cosmin2000 likes this.
  3. Cosmin2000

    Cosmin2000 Active Member

    Messages:
    118
    Location:
    China/Romania
    I am also tempted to buy the last Yamaha amplifier which incorporates their SIT transistors. They say that it sound surpasses the B-2, but who will have the two (B-3 vs. B-2 ) to make a fair comparison I don't know... The B-3 is only Japan version 100V, has one single trafo, one single pair of FETs/channel, 27000 micro/63V smoothing capacitors, 16.2 kg.
    There are some members which own B-3 here on AK. Maybe they will be kind to shed some light on this topic.
     

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  4. Cosmin2000

    Cosmin2000 Active Member

    Messages:
    118
    Location:
    China/Romania
  5. witon

    witon New Member

    Messages:
    6
    there is only one comparsion so far, hopefully tjere are many more japanese review on this lost treasure.
     
  6. witon

    witon New Member

    Messages:
    6
    I was wondering instead turning i on to connect in BTL can we connect XLR out on to it , we will connect to the speaker according to the correct polarity.
    If that is doable yamaha b-3 would probably be very ahead on his time creating pesudo balance amp topology.
     

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