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direct/reflecting

  1. WillKennet

    Old BOSE 501 Direct/Reflecting Loudspeaker System

    I have three questions: My 501's do not show any evidence of ever having the "Direct Energy Control" flap. Was this control an "upgrade" added on later models, or my speakers mine a "knock-off" using the original name plate/terminal board on back? Where can I get a schematic of the original...
    • WillKennet
    • Thread
    • 501 501 crossover 501 direct energy control 501 tweeter bose 501 direct energy control direct/reflecting vintage bose
    • Replies: 1
    • Forum: General Audio Discussion
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