Finishing a 47 year old project and a mystery speaker gets a ride home

Discussion in 'Speakers' started by Oldsansui441, Apr 18, 2017.

  1. restorer-john

    restorer-john Super Member

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    3,618
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    The Pioneer AS-303A speaker kit is in the September 1973 catalogue, along with the AS-200 and the AS-305A. IMG_1452.JPG IMG_1453.JPG IMG_1454.JPG

    Your pioneers are all alnico magnets.
     
    Oldsansui441 and drbiggles like this.
  2. Oldsansui441

    Oldsansui441 AK Subscriber Subscriber

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    That is very interesting restorer john, thank you very much. That AS-303A kit looks identical to mine except that my kit has a nominal impedance of 16ohm. Maybe there was an earlier and a slightly later version.
     
  3. gdmoore28

    gdmoore28 Super Member

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    Thanks for posting that fascinating Pioneer literature, John. I had no idea that the company offered kits.

    GeeDeeEmm
     
  4. Oldsansui441

    Oldsansui441 AK Subscriber Subscriber

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    Biggles you talked me into modifying the crossovers, and l am glad you did, thank you. I must say you were on to something, whilst not a huge difference, they certainly sound noticeably better and not fatiguing like they were before. I have completely finished them and have been listening to them for quiet a while and they are definitely smoother than before, no question.

    Here are some pics, l will take some more in the daylight of the finished units.
     

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  5. drbiggles

    drbiggles I like bacon Subscriber

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    You're awesome, you nailed it and great news. Score! What a nice way to start a Saturday. Feels good, huh?

    Biggles
     
  6. Oldsansui441

    Oldsansui441 AK Subscriber Subscriber

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    Thank you, l think you are the awesome one, l was just simply following your terrific advice. Yes a great way to start the weekend and well worth the time spent :).
    Here are some photos of the finished speakers. You may notice the rear edges on cabinets where the original owner stained one and not the other, don't know if this is going to bug me or not. yet.
     

    Attached Files:

  7. drbiggles

    drbiggles I like bacon Subscriber

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    Hooboy, they look absolutely perfect! I wouldn't worry about the staining on the rear edges, it's part of their character and history. It gives a story to tell and creates a mystery as to what may or may not have happened. Nice progression on this project. So many get left by the wayside, or take months if not years to complete. A great way to start a Sunday.

    The next time, or when you've got a few minutes of downtime, you're going to want to get back into 'em. Remove the zip ties around the driver wires and separate them. I can't remember exactly what the deal is, I believe it's an inductance issue. But having the wires tied together will audibly mess with your performance. And, I know you're going to scream, but the crossovers will have to be moved as well. The woofer's magnet is too close to the inductors. This will cause the same issues as having the inductors too close to each other. This changes may or may not make an audible difference right off the bat. But when you're in for some critical listening, it will cause grungy nuances. How do I know? I've been down the same road myself. So many picky little bits that can make anyone crazy. But when you get all this down, the next project will scream along at quite a happy pace.

    Biggles
     
  8. drbiggles

    drbiggles I like bacon Subscriber

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    OH, here, I meant to attach this link. A friend recently forwarded this to me. The reason I appreciate it is that it actually gives you hands on stuff you can do, and it makes sense. So many audiophoole information is buried in so much blather it takes a scientist to pull anything useful out of it.

    http://www.co-bw.com/Audio_Increase_Listening_Experience_Gear.htm

    Biggles
     
  9. Oldsansui441

    Oldsansui441 AK Subscriber Subscriber

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    947
    Location:
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    Thanks Biggles, next time l have them open l will separate those wires and move the inductors futher to the left, this did actually cross my mind when doing it but l thought they were far enough away from woofer magnets. Are you just referring to the large woofer inductor on the left or all three?

    In regards to the speaker wires being bundled together could not the same be said for the speaker wires between amp and speakers themselves?

    Thanks for all of your support and motivation with these, that link is also very interesting and full of great tips.

    Cheers.
     
  10. drbiggles

    drbiggles I like bacon Subscriber

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    5,910
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    Hay,

    First off, I apologize for not mentioned those points before you installed them. If I'd been there standing in front of them, we'd have been fine. I know exactly what it's like to finish something up, then realize that I did it all wrong and it's all got to be changed, again. It looks like only the large inductor would be the issue.

    Yeah buddy. The link I posted talks about getting the speaker wires spaced 6" from each other. It also talks about speaker wires and interconnects. It even talks about getting them 6" off the floor. But for me that's simply not practical. Whether these changes will make an audible difference in your system, there's only one way to find out.

    Biggles
     
  11. Oldsansui441

    Oldsansui441 AK Subscriber Subscriber

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    947
    Location:
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    No apologies needed, l should have realised, no biggy l will do it when l get some more time. Ahh yes l see all of that mentioned now in your link.

    As they say, a system is only as good as it's weakest link l guess, whether we are talking about audio or any other system.
    All the best and thanks again.
     
  12. drbiggles

    drbiggles I like bacon Subscriber

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    5,910
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    Hay,

    You're welcome and enjoy the show!

    Biggles
     

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