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It’s that time audio enthusiasts! Registration for the 2019 Speaker Design Competition is now open! Visit midwestaudiofest.com for details and to list your speaker project. We are excited to see all returning participants, and look forward to meeting some new designers this year, as well! Be sure your plans include a visit to the Parts Express Tent Sale for the lowest prices of the year, and the Audio Swap Meet where you can buy and trade with other audio fans. We hope to see you this summer! Vivian and Jill
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Polk PSW10 Any good replacement driver?

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  • Weber
    started a topic Polk PSW10 Any good replacement driver?

    Polk PSW10 Any good replacement driver?

    Ok so as the title says I'm looking for an adequate replacement driver for this box. I literally hate the driver they used! It bottoms out and makes terrible noises! The box has roughly 1.8 cu ft. internal volume and the flared port measures 3" x 9.75". I have no idea what the F3 or tuning frequency is used because I have no way to measure this driver atm. So I'm hoping someone here who is more knowledgeable can recommend a much better replacement driver.

  • Weber
    replied
    And I decided to go another route. I'm currently looking at a dual sub setup, possibly the BIC Formula F-12's.

    Leave a comment:


  • fpitas
    replied
    The Fusion-8 Alchemy seems to still be available.

    Leave a comment:


  • fpitas
    replied
    Originally posted by killa View Post

    He also did the alchemy fusion 8
    Thanks! That seems to still be available. I'd post a link, but...

    Leave a comment:


  • guitar maestro
    replied
    Originally posted by billfitzmaurice View Post
    By and large you're better off dollar wise with a plate amp, or an amp that's made for subwoofer usage only. The demands of midrange and high frequency performance that greatly add to the cost of a full bandwidth amp don't exist with an amp that only has to run to 200Hz or lower. I also prefer having an amp with a low pass filter, as that allows cascading of the filter slopes of the AVR and sub amp.
    I agree unless your requirements are such that you need over 1kW RMS. At that point, plate amplifiers may start to become prohibitively expensive. Dollar-per-watt, I feel there are advantages to going to a high-power class-D "pro audio style" amplifier when you need over 1kW RMS. And yes I'm talking about music, not movies LFE.

    Leave a comment:


  • killa
    replied
    Originally posted by scottvalentin View Post

    Jeff did the Fusion Tempest 12, but it is (or has been) discontinued at DIYSG. It used an Eminence 12" woofer and one of the Denovo compression drivers from Erich at DIYsound group.
    He also did the alchemy fusion 8

    Leave a comment:


  • Geoff Millar
    replied
    Originally posted by Weber View Post
    I also come from the high SPL car audio environment as well. Had a system in nearly every vehicle I've owned but my current one since it has a decent factory Infinity system with a sub so my ears are just accustomed to high volume levels.
    Re 'high' SPL', you do need to be careful about the effect of such levels on your hearing: http://www.sengpielaudio.com/Permiss...posureTime.htm

    As we get older, hearing loss happens anyway but there's no need to hurry the process: if your ears are becoming used to high SPLs that may not be a good thing.

    Geoff

    Leave a comment:


  • fpitas
    replied
    Originally posted by scottvalentin View Post

    Jeff did the Fusion Tempest 12, but it is (or has been) discontinued at DIYSG. It used an Eminence 12" woofer and one of the Denovo compression drivers from Erich at DIYsound group.
    Thanks Scott.

    Leave a comment:


  • scottvalentin
    replied
    Originally posted by fpitas View Post
    Talking about SQ, somebody here might know: didn't Jeff Bagby design a speaker using a CD on a waveguide?
    Jeff did the Fusion Tempest 12, but it is (or has been) discontinued at DIYSG. It used an Eminence 12" woofer and one of the Denovo compression drivers from Erich at DIYsound group.

    Leave a comment:


  • Weber
    replied
    I also come from the high SPL car audio environment as well. Had a system in nearly every vehicle I've owned but my current one since it has a decent factory Infinity system with a sub so my ears are just accustomed to high volume levels.

    Leave a comment:


  • fpitas
    replied
    Talking about SQ, somebody here might know: didn't Jeff Bagby design a speaker using a CD on a waveguide?

    Leave a comment:


  • Chris Roemer
    replied
    SOMEtimes it's advantageous to trade SPL for SQ.
    Google (Dave Tenney's) "Dayton 8". (It HAS been retrofitted w/a mid-dome.)
    MAYbe you need a pair of "Sensations" (or at least another dual-woofer 3-way)?

    Leave a comment:


  • Weber
    replied
    Originally posted by kevintomb View Post

    Perhaps you are expecting too much out of standard home audio speakers.
    When you say you like it very loud, that is hard to relate to, as no decibel level is used.

    Maybe you should try to listen to several other systems to have a reference as to what you do consider agreeable with you, as far as having loud volume etc.
    I don't think I'm expecting too much, but I now realize my tastes prefer something louder than small bookshelf speakers. And as a reference, when I was younger...18 ish, my friend had a pair of Realistic Mach II's with 15" woofers! I also listened to some big Cerwin Vega speakers back then as well. However, I would prefer something with a much smaller footprint.

    Originally posted by Geoff Millar
    I don't know how any of the following sound as I haven't built any of them, but for 'loud' speakers you could check out:

    Paul Carmody's Tarkus (many happy builders) https://sites.google.com/site/undefinition/tarkus

    Curt Campbell's Uluwatu (ditto) http://speakerdesignworks.com/SB6pakproject_6.html

    Don Raddick's build on PETT with Peerless woofers and a VIFA tweeter (same tweeter as the Uluwatu, I think) http://techtalk.parts-express.com/fo...a-piece/page10. This design has several builds, I think.

    There are many more projects, on PETT and other places. For example, I forget the name of the design but the PE Project gallery has a design which uses multiple DA175s

    Geoff
    Those Tarkus are definitely heading down the right path! I'm thinking of having at least a good 6.5" to 8" Midwoofer after reading about these. Thanks!

    Originally posted by fpitas
    DIY Sound Group has some waveguide based kits that may go loud enough for you.
    Thanks! I'll lok into it.




    Leave a comment:


  • fpitas
    replied
    DIY Sound Group has some waveguide based kits that may go loud enough for you.

    Leave a comment:


  • Geoff Millar
    replied
    I don't know how any of the following sound as I haven't built any of them, but for 'loud' speakers you could check out:

    Paul Carmody's Tarkus (many happy builders) https://sites.google.com/site/undefinition/tarkus

    Curt Campbell's Uluwatu (ditto) http://speakerdesignworks.com/SB6pakproject_6.html

    Don Raddick's build on PETT with Peerless woofers and a VIFA tweeter (same tweeter as the Uluwatu, I think) http://techtalk.parts-express.com/fo...a-piece/page10. This design has several builds, I think.

    There are many more projects, on PETT and other places. For example, I forget the name of the design but the PE Project gallery has a design which uses multiple DA175s

    Geoff

    Leave a comment:

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