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Thread: 4343B rotary switch bypass single amp mode.

  1. #16
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    Quote Originally Posted by warpig View Post
    Ok scusa ho cercato le immagini ma non ho trovato nessuna che mostri un interruttore rotante. Inoltre non posso aiutare perché non ho mai lavorato sul 4333B.

    Buona fortuna
    Greg

    I think we are talking about this:


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  2. #17
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    Quote Originally Posted by Goldjazz View Post
    Nicely done Warpig. You've done a much better job documenting this than I had planned to. My switch was similarly corroded and nasty. Many of the contact points were no longer making proper contact and at least one was also shorting on the screws holding the thing in. As mentioned in the other thread I noticed an improvement in biamp mode removing it out of the path, hope you did too
    sorry, but does this switch have a value ( ampere ...) ?

  3. #18
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    Value?

    Quote Originally Posted by mibamb View Post
    sorry, but does this switch have a value ( ampere ...) ?
    Yes it has value if you intend to biamp the speakers.

  4. #19
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    Quote Originally Posted by warpig View Post
    Yes it has value if you intend to biamp the speakers.
    The rating of the switch contacts in amps.

    Rob
    "I could be arguing in my spare time"

  5. #20
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    Quote Originally Posted by Robh3606 View Post
    The rating of the switch contacts in amps. Rob
    I have know idea but I would imagen that if you burnt up the switch the speakers and crossovers would be toast.

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  7. #22
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    1. For simplicity can l suggest the following bi amp switch bypass on the above schematic
    with red circles.
    Connect the low amp + input terminal direct to the woofer+ terminal

    Using new wires soldered to the input terminals and the switch set to external:
    Connect the low amo - input terminal direct to the woofer - terminal

    2. Connect the internal + input terminal to the input wire of the 1.7 mH choke per the schematic
    Connect the internal - input terminal to the Lpad tab 1.

    This will eliminate touching the switch terminals and simplify the task.

    If you intend to continue with a full passive crossover build a new network and re wire. These old networks were never intended to be diy friendly.

  8. #23
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    Quote Originally Posted by warpig View Post
    Yes it has value if you intend to biamp the speakers.
    hi Warpig, sorry I meant for a power signal ( ohm ), not a line signal, to create a passive bi-amplification. How many amps does the rotary switch need before entering the passive crossovers so as not to burn the components. A while ago I saw a modification by Luxman that put a 20A rotary switch. Is that right? But the switch that I am attaching what value does it have?
    Attached Images Attached Images  

  9. #24
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    Quote Originally Posted by mibamb View Post
    hi Warpig, sorry I meant for a power signal ( ohm ), not a line signal, to create a passive bi-amplification. How many amps does the rotary switch need before entering the passive crossovers so as not to burn the components. A while ago I saw a modification by Luxman that put a 20A rotary switch. Is that right? But the switch that I am attaching what value does it have?
    Not sure what you are attempting to do. Also I am not that technical of a person. I had no intentions of Biamping the 4343B speakers that's the reason for bypassing the switch. I left the switch in place with wire attached so if anyone wanted to reattach the switch it would be simple. If Luxman changed out the switch perhaps he is the best person to ask.

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