Question about Boston Acoustics CS26 Speaker

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Boston Acoustics CS26 Speakers sound cuts out for over a second at higher volumes tested using two different amplifiers same problem. Does not seem to be related to amp distortion:clipping protectio

Have taken the speakers with the amplifiers (NAD 35 watt and Arcam Delta 290 75 watt) back to the shop they were sold by but could not replicate the fault !! Only different was speaker placement and power supply. Back home same problem every time. Spoke to Boston acoustics who tried to be helpful but do not have a solution. As I do not have the receipt I cannot get them checked/fixed under warranty.

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It sounds like the speaker cones(if that is what they have) get hung up against the back of the case. No vibration=no sound. Check to see that there is no hum adding to the pressure on the speakers. Check to see that the speakers are hooked to the correct impedence output of the amplifier. Also, wire length affects impedence and shortening the wires might help.

Posted on Jan 22, 2013

  • 1 more comment 
  • John Foley Jan 22, 2013

    Hi thanks for your input. Checked the position of the cone when sound cuts out and the cones are momentarily right at the back of their movement. If the cones are getting hung up against the the back of the case what is the solution? New info this issue only happens when the speakers have warmed up i.e. not from cold, which explains why it did not do it in the shop.

  • John Foley Jan 22, 2013

    UpUpdate (2) sound cuts out only when both speakers are connected to amplifier/s

  • Leigh Perlmutter
    Leigh Perlmutter Jan 22, 2013

    The cones may be stretched out, too soft for the power of the amps>

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