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Thread: Relay Volume Controller Balanced Preamp

  1. #1
    Join Date: Mar 2018

    Location: Brum, West Midlands

    Posts: 52
    I'm steve.

    Default Relay Volume Controller Balanced Preamp

    Hi for sale and in good condition a nice cheap preamp single input only

    £75 posted to your front door

    Thanks

    [IMG][/IMG]

    [IMG][/IMG]



    [IMG][/IMG]

  2. #2
    Join Date: Mar 2018

    Location: Brum, West Midlands

    Posts: 52
    I'm steve.

    Default

    offers

  3. #3
    Join Date: May 2008

    Location: Surrey

    Posts: 7,103
    I'm Rob.

    Default

    I may be interested in this. Did your amp come with any info? I have found the board being sold without an enclosure and the blurb says this :-
    This high-precision 256-stage volume controller is ideal for the design of passive or active preamplifiers in XLR symmetric or classical RCA asymmetric design.

    Strengths:
    Perfect channel balance
    Analog bridge meter supplied
    Digital Analogue Controller ADC0804
    Same linear quality as a switched resistance potentiometer
    Integrated circuit power supply

    It says that the balanced IN & OUT uses the ADC0804 which uses a 256 stage volume controller. I wonder how this works with the passive volume control. Have you used it balanced?
    Rob.
    Buy Bose...And get your parking validated!.

    https://youtu.be/ZCBe7-6rw4M

    No Highs...No Lows....It Must Be Bose!

  4. #4
    Join Date: Mar 2018

    Location: Brum, West Midlands

    Posts: 52
    I'm steve.

    Default

    Hi

    yes this is the 256 stage volume control, sorry i have no paperwork for this only selling because i need more then the 1 input

    Thanks

  5. #5
    Join Date: May 2008

    Location: Surrey

    Posts: 7,103
    I'm Rob.

    Default

    You have PM.
    Buy Bose...And get your parking validated!.

    https://youtu.be/ZCBe7-6rw4M

    No Highs...No Lows....It Must Be Bose!

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