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  1. #1
    Forum Regular
    Join Date
    Jan 2008

    cambridge 640C toslink

    ok, you may have to humor me for a bit. I noticed on the cambridge 640 cd player there is a toslink output. I was informed by a salesman at a local shop that this meant i could plug into the cd player with an optical cable from my macbook pro thus having lovely clear sound????!!!! I would have thought id need an optical in to do that.
    You see i'm in the process of upgrading to a Cambridge 740A Amp. Even though most audiophiles frown, i want to use either my macbook pro as the music source, or my ipod (the files are mostly lossless) So the sales bloke said that in addition to the amp, i should get the 640 cd because as well as being a lovely cd player, it had the toslink which would enable me to......
    So i just want to know if this is correct!

    The other question i had was, would the sound be better from the laptop to stereo via a DAC or go straight in via the optical out?

    And in terms of ipod, Apple have a standard dock, does it qualify as a decent DAC?

    thanks for any responses!


  2. #2
    Forum Regular blackraven's Avatar
    Join Date
    Nov 2006
    St. Paul, Minnesota
    The optical out on the 640c is a digital connection that would hook up to the optical input of a receiver or amplifier there by using the 640c as a transport only. You would be using the DAC of the receiver or amp.

    It sounds like you want to use your computer as the digital source. Therefore you dont need a cd player. The digital out on your computer would need to plug into the digital input of the amp and would use the amps internal DAC. You dont need an external DAC as long as the receiver/integrated amp/preamp-amp has an internal DAC.

    Your salesman is an idiot or you misunderstood him!
    Pass Labs X250 amp, BAT Vk-51se Preamp,
    Thorens TD-145 TT, Bellari phono preamp, Nagaoka MP-200 Cartridge
    Magnepan QR1.6 speakers
    Luxman DA-06 DAC
    Van Alstine Ultra Plus Hybrid Tube DAC
    Dual Martin Logan Original Dynamo Subs
    Parasound A21 amp
    Vintage Luxman T-110 tuner
    Magnepan MMG's, Grant Fidelity DAC-11, Class D CDA254 amp
    Monitor Audio S1 speakers, PSB B6 speakers
    Vintage Technic's Integrated amp
    Music Hall 25.2 CDP
    Adcom GFR 700 AVR
    Cables- Cardas, Silnote, BJC
    Velodyne CHT 8 sub

  3. #3
    Forum Regular
    Join Date
    Jan 2008
    exactly! no i didnt miss understand him. Thanks for your response, you confirmed my thoughts.

  4. #4
    Forum Regular
    Join Date
    Feb 2008
    If you are looking at an outboard DAC that plugs into the USB port, and the other end plugs into the amp, you might want to check out the usbmonica. check out the site.

  5. #5
    Forum Regular
    Join Date
    Mar 2003
    halifax,nova scotia,canada
    The 740c has a digital input that allows use of it's DAC and upsampling technology by other components.

    Speakers-Jm Labs
    Disc player-Sim Audio Moon Calypso
    Pre-amp-Sim Audio P-5.3 SE
    dac= sim audio moon 300d

    Amp-Sim Audio Moon I-3
    Display-Toshiba CRT
    Wires and Cables-Kimber,Straight Wire, ixos, Gutwire and shunyata research
    Sacd-Cambridge Audio
    Bluray--Sony and Cambridge Audio
    Remote-- Harmony 1100

    Power-- Monster

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