Question about Boston Acoustics BA745 Computer Speakers

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Can I connect my old Boston BA745 speakers (with two jacks) to a new laptop that only has a headphone jack?

Posted by jfebraun on

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Stelios

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Yes, you can connect your 2 satelites at the headphone jack using an adaptor like this (I assume that the connector at each speaker is RCA). The problem is that you will get very low volume, even when you are all the way up at the settings. This is because these speakers don't have amplifier. Their amplifier was in the 3rd speaker, the subwoofer. So I don't think that the result will be exactly what you need.

In case of a problem or clarification, don't hesitate to post me a reply before rejecting my answer.
If you are satisfied, rate my solution with the "thumbs" or (even better) add a testimonial.

Thanks and regards
Please kindly rate this solution
Stelios
direct FixYa link: http://www.fixya.com/users/technical114

Posted on Sep 18, 2010

  • 7 more comments 
  • jfebraun Sep 18, 2010

    Hi technical114 - thanks for your response. But I would like to clarify something: The way the Boston Acoustic speakers (model BA745) are set up, the two satellite speakers plug into the subwoofer, and the subwoofer has two 3.5mm male jacks that I need to plug into my new laptop. So I'm trying to plug the subwoofer, which I presume has an amplifier into my laptop.

    To give you even more details, one of the satellites plugs into the subwoofer with a male RCA plug, and the other satellite (which has a power/volume knob and a subwoofer volume knob) plugs into the subwoofer using a 3.5mm male plug and a circular plug with nine pins.

    So I'm not sure if you didn't fully understand my setup, or if you were suggesting to use only the two satellite speakers (which isn't something I want to do).

  • jfebraun Sep 18, 2010

    Hi technical114 - thanks for your response. But I would like to clarify something: The way the Boston Acoustic speakers (model BA745) are set up, the two satellite speakers plug into the subwoofer, and the subwoofer has two 3.5mm male jacks that I need to plug into my new laptop. So I'm trying to plug the subwoofer, which I presume has an amplifier into my laptop.

    To give you even more details, one of the satellites plugs into the subwoofer with a male RCA plug, and the other satellite (which has a power/volume knob and a subwoofer volume knob) plugs into the subwoofer using a 3.5mm male plug and a circular plug with nine pins.

    So I'm not sure if you didn't fully understand my setup, or if you were suggesting to use only the two satellite speakers (which isn't something I want to do).

  • jfebraun Sep 18, 2010

    Hi technical114 - thanks for your response. But I would like to clarify something: The way the Boston Acoustic speakers (model BA745) are set up, the two satellite speakers plug into the subwoofer, and the subwoofer has two 3.5mm male jacks that I need to plug into my new laptop. So I'm trying to plug the subwoofer, which I presume has an amplifier into my laptop.

    To give you even more details, one of the satellites plugs into the subwoofer with a male RCA plug, and the other satellite (which has a power/volume knob and a subwoofer volume knob) plugs into the subwoofer using a 3.5mm male plug and a circular plug with nine pins.

    So I'm not sure if you didn't fully understand my setup, or if you were suggesting to use only the two satellite speakers (which isn't something I want to do).

    Addendum: I just got off the phone with Best Buy's Geek Squad (I was typing to you while on hold with them), and they also believe an adaptor would work; this adapter would take my two 3.5mm subwoofer plugs and convert them into one. I'll let you know how it works out.

    Thanks again.

  • jfebraun Sep 18, 2010

    Hi technical114 - thanks for your response. But I would like to clarify something: The way the Boston Acoustic speakers (model BA745) are set up, the two satellite speakers plug into the subwoofer, and the subwoofer has two 3.5mm male jacks that I need to plug into my new laptop. So I'm trying to plug the subwoofer, which I presume has an amplifier into my laptop.

    To give you even more details, one of the satellites plugs into the subwoofer with a male RCA plug, and the other satellite (which has a power/volume knob and a subwoofer volume knob) plugs into the subwoofer using a 3.5mm male plug and a circular plug with nine pins.

    So I'm not sure if you didn't fully understand my setup, or if you were suggesting to use only the two satellite speakers (which isn't something I want to do).

    Addendum: I just got off the phone with Best Buy's Geek Squad (I was typing to you while on hold with them), and they also believe an adaptor would work; this adapter would take my two 3.5mm subwoofer plugs and convert them into one. I'll let you know how it works out.

    Thanks again.

  • jfebraun Sep 18, 2010

    Hi technical114 - thanks for your response. But I would like to clarify something: The way the Boston Acoustic speakers (model BA745) are set up, the two satellite speakers plug into the subwoofer, and the subwoofer has two 3.5mm male jacks that I need to plug into my new laptop. So I'm trying to plug the subwoofer, which I presume has an amplifier into my laptop.

    To give you even more details, one of the satellites plugs into the subwoofer with a male RCA plug, and the other satellite (which has a power/volume knob and a subwoofer volume knob) plugs into the subwoofer using a 3.5mm male plug and a circular plug with nine pins.

    So I'm not sure if you didn't fully understand my setup, or if you were suggesting to use only the two satellite speakers (which isn't something I want to do).

    Addendum: I just got off the phone with Best Buy's Geek Squad (I was typing to you while on hold with them), and they also believe an adaptor would work; this adapter would take my two 3.5mm subwoofer plugs and convert them into one. I'll let you know how it works out.

    Thanks again.

  • jfebraun Sep 18, 2010

    Hi technical114 - thanks for your response. But I would like to clarify something: The way the Boston Acoustic speakers (model BA745) are set up, the two satellite speakers plug into the subwoofer, and the subwoofer has two 3.5mm male jacks that I need to plug into my new laptop. So I'm trying to plug the subwoofer, which I presume has an amplifier into my laptop.

    To give you even more details, one of the satellites plugs into the subwoofer with a male RCA plug, and the other satellite (which has a power/volume knob and a subwoofer volume knob) plugs into the subwoofer using a 3.5mm male plug and a circular plug with nine pins.

    So I'm not sure if you didn't fully understand my setup, or if you were suggesting to use only the two satellite speakers (which isn't something I want to do).

    Addendum: I just got off the phone with Best Buy's Geek Squad (I was typing to you while on hold with them), and they also believe an adaptor would work; this adapter would take my two 3.5mm subwoofer plugs and convert them into one. I'll let you know how it works out.

    Thanks again.

  • jfebraun Sep 18, 2010

    Hi technical114 - thanks for your response. But I would like to clarify something: The way the Boston Acoustic speakers (model BA745) are set up, the two satellite speakers plug into the subwoofer, and the subwoofer has two 3.5mm male jacks that I need to plug into my new laptop. So I'm trying to plug the subwoofer, which I presume has an amplifier into my laptop.

    To give you even more details, one of the satellites plugs into the subwoofer with a male RCA plug, and the other satellite (which has a power/volume knob and a subwoofer volume knob) plugs into the subwoofer using a 3.5mm male plug and a circular plug with nine pins.

    So I'm not sure if you didn't fully understand my setup, or if you were suggesting to use only the two satellite speakers (which isn't something I want to do).

    Addendum: I just got off the phone with Best Buy's Geek Squad (I was typing to you while on hold with them), and they also believe an adaptor would work; this adapter would take my two 3.5mm subwoofer plugs and convert them into one. I'll let you know how it works out.

    Thanks again.

  • jfebraun Sep 18, 2010

    Hi technical114 - thanks for your response. But I would like to clarify something: The way the Boston Acoustic speakers (model BA745) are set up, the two satellite speakers plug into the subwoofer, and the subwoofer has two 3.5mm male jacks that I need to plug into my new laptop. So I'm trying to plug the subwoofer, which I presume has an amplifier into my laptop.

    To give you even more details, one of the satellites plugs into the subwoofer with a male RCA plug, and the other satellite (which has a power/volume knob and a subwoofer volume knob) plugs into the subwoofer using a 3.5mm male plug and a circular plug with nine pins.

    So I'm not sure if you didn't fully understand my setup, or if you were suggesting to use only the two satellite speakers (which isn't something I want to do).

    Addendum: I just got off the phone with Best Buy's Geek Squad (I was typing to you while on hold with them), and they also believe an adaptor would work; this adapter would take my two 3.5mm subwoofer plugs and convert them into one. I'll let you know how it works out.

    Thanks again.

  • Stelios
    Stelios Sep 18, 2010

    You are right, I thought that you were about to use just the satellites. Since you need to use the full set with the sub-woofer follow this connection diagram:

    The 2 jacks from the sub to your laptop are for audio playback (the green one) and for mic use (the red one). This means that you can use the mic input that is located on one of the satellites in order to plug in a microphone, instead of using the mic input at the computer. This is convenient in cases you use a desktop; you connect the microphone at this speaker instead of trying to find the jack at the back of the tower.
    In your case leave the red jack from the sub woofer disconnected. Connect just the green one at the green laptop's jack.

    In case of a problem or clarification, don't hesitate to post me a reply before rejecting my answer.
    If you are satisfied, rate my solution with the "thumbs" or (even better) add a testimonial.

    Thanks and regards
    Please kindly rate this solution
    Stelios
    direct fixya link:http://www.fixya.com/users/technical114

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