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  1. #1
    Join Date
    May 2008
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    Default midrange suggestions

    Hi Everyone,

    I'm seeking advice on what to use for a midrange driver in a 3-way setup. I'll be using a RS225 for the woofer and a Morel MDT10 (NLA) for the tweeter, because I already have them. I want a driver with low distortion and a smooth roll-off. I figure it should be able to be crossed around 300/3000. Budget is under $100.00 each.

    Thanks,

    Tom

  2. #2
    Join Date
    Aug 2011
    Location
    Mayfield Heights, OH
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    1,179

    Default Re: midrange suggestions

    Quote Originally Posted by Thomas Moore View Post
    ... I figure it should be able to be crossed around 300/3000. Budget is under $100.00 each.
    That leaves a heck of a lot of drivers. Are you thinking dome or cone?

  3. #3
    Join Date
    May 2008
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    Default Re: midrange suggestions

    I'm thinking cone. No metal. My current design is using the RS52 midrange. I'm not really happy with it.

  4. #4
    Join Date
    Aug 2011
    Location
    Mayfield Heights, OH
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    1,179

    Default Re: midrange suggestions

    Parts Express has the Vifa NE123W-08, which is from a great driver family, 4", advanced motor. Its 80$ though, so towards the top of your spending limit. At the same place the Peerless 830991 5-1/4" GFC Cone HDS Woofer would do the trick, I recommend it because what I am seeing in its 6.5" brother is rather impressive. Also a lot cheaper at 47$ On the bargain basement bottom is the Vifa TC9FD-18-08 which test really well, Zaph did it a while back and that is like 10$

    Madisound has the impressive Scanspeak Discovery 10F/8424G, while at 100$ is your top end but its one hell of a driver. You can just look at it and tell that, plus more measurements from Zaph. They also have a Seas MU10RB-SL (H1658-04) 4" Woven Poly Cone Midrange which was designed for Linkwitz's LX521, and that looks really solid. I could go on, but I think this is enough time and I covered a nice range of drivers

  5. #5
    Join Date
    Jan 2013
    Location
    Hampton Roads Virginia
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    1,226

    Default Re: midrange suggestions

    http://www.madisoundspeakerstore.com...r-cone-woofer/

    This Seas paper cone 5.5" is on sale at Mad.

    There is this glass/fiber cone ScanSpeak for a little more money...

    http://www.madisoundspeakerstore.com...idrange-8-ohm/

    Or if you want to break the budget a little and try something you don't see often then this Eton might be nice.

    http://www.madisoundspeakerstore.com...uminum-former/

    Disclaimer; I have used none of these. Listening to someone with actual experience with what they recommend might be better, but I was just thinking out loud.

  6. #6
    Join Date
    Dec 2008
    Location
    Long Island
    Posts
    3,472

    Default

    Another vote for the 10F 8ohm. Sounds great, low distortion, and very easy to work with.
    "He who fights with monsters should look to it that he himself does not become a monster. And when you gaze long into an abyss the abyss also gazes into you." Friedrich Nietzsche

    http://www.diy-ny.com/

  7. #7
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    Default Re: midrange suggestions

    The Eton looks great, if the chart is accurate. It's a little pricey, though. Still, I'm not ruling it out. The Scan Speak 10F looks good. How hard is it to tame the rising response?

  8. #8
    Join Date
    Aug 2011
    Location
    Mayfield Heights, OH
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    Default Re: midrange suggestions

    Quote Originally Posted by Thomas Moore View Post
    The Scan Speak 10F looks good. How hard is it to tame the rising response?
    Its possible that rise is an effect of their measurement conditions. See Zaph's measurement of the 4 ohm version below:

    Click image for larger version. 

Name:	Scan-Speak-10F-4424G00-FR-sample2.gif 
Views:	158 
Size:	11.6 KB 
ID:	34835

    There is still a slight rise, but its nothing like what they are showing. This test is on his large flat baffle, IIRC.

  9. #9
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    May 2008
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    Default Re: midrange suggestions

    That looks very good. Do you know of any third party measurements of the 8 ohm version? Any distortion measurements?

  10. #10
    Join Date
    Aug 2011
    Location
    Mayfield Heights, OH
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    Default Re: midrange suggestions

    Zaph did the 4, I think its reasonable to expect similar performance from the 8, you can find it here: http://www.zaphaudio.com/blog.html The page is large, just F3 or Ctrl+F or whatever and search 10F and you can find it down in the middle somewhere.

  11. #11
    Join Date
    Jan 2013
    Location
    Hampton Roads Virginia
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    1,226

    Default Re: midrange suggestions

    http://www.zaphaudio.com/5.5test/

    This is Zaph's test of 5.25" drivers. There may be something you like there...

  12. #12
    Join Date
    Jan 2010
    Location
    North
    Posts
    1,313

    Default Re: midrange suggestions

    Scan Speak 10F or 15M/4624.
    Do It Someone Else.

  13. #13
    Join Date
    Dec 2008
    Location
    Long Island
    Posts
    3,472

    Default Re: midrange suggestions

    Quote Originally Posted by Thomas Moore View Post
    The Scan Speak 10F looks good. How hard is it to tame the rising response?
    Very easy.
    "He who fights with monsters should look to it that he himself does not become a monster. And when you gaze long into an abyss the abyss also gazes into you." Friedrich Nietzsche

    http://www.diy-ny.com/

  14. #14
    Join Date
    Sep 2005
    Location
    Indiana
    Posts
    19,725
    Blog Entries
    29

    Default Re: midrange suggestions

    "Wolf, you shall now be known as "King of the Zip ties." -Pete00t
    "Wolf and speakers equivalent to Picasso and 'Blue'" -dantheman
    "He is a true ambassador for this forum and speaker DIY in general." -Ed Froste
    "We're all in this together, so keep your stick on the ice!" - Red Green aka Steve Smith
    "We don't just make a crossover, we make a statement!" - Lawrence Fishburne for Cadillac

    *InDIYana 2014 event*

    Photobucket pages:
    http://photobucket.com/Wolf-Speakers_and_more

    My blog/writeups/thoughts here at PE:
    http://techtalk.parts-express.com/blog.php?u=4102

  15. #15
    Join Date
    Jan 2013
    Location
    Hampton Roads Virginia
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    1,226

    Default Re: midrange suggestions

    Wolf, the SB and Seas items look nice. I saw you mentioned the keronite Eton mid, but I didn't see the link for it. I have thought that unit might be really nice too. Link...

    http://www.madisoundspeakerstore.com...-matched-pair/

  16. #16
    Join Date
    Sep 2005
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    Indiana
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    Default Re: midrange suggestions

    I thought it was linked above. Oh well...

    BTW- there are 3 versions of that Curv 4" that Linkwitz used; his, and an 8 ohm and 4 ohm version of the unused-by-linkwitz variety that may be cheaper.

    And you have to admit, there is something about Audax Aerogels....
    Later,
    Wolf
    "Wolf, you shall now be known as "King of the Zip ties." -Pete00t
    "Wolf and speakers equivalent to Picasso and 'Blue'" -dantheman
    "He is a true ambassador for this forum and speaker DIY in general." -Ed Froste
    "We're all in this together, so keep your stick on the ice!" - Red Green aka Steve Smith
    "We don't just make a crossover, we make a statement!" - Lawrence Fishburne for Cadillac

    *InDIYana 2014 event*

    Photobucket pages:
    http://photobucket.com/Wolf-Speakers_and_more

    My blog/writeups/thoughts here at PE:
    http://techtalk.parts-express.com/blog.php?u=4102

  17. #17
    Join Date
    May 2008
    Location
    Vermont
    Posts
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    Default Re: midrange suggestions

    Thanks everyone,

    Has anyone used either of the SB drivers that Wolf provided the link to? They look like a good value. They are very similar in price and specifications. I'm curious to know what the performance differences may be between the two. Why would you choose one over the other?

    Thanks,

    Tom

  18. #18
    Join Date
    Jan 2013
    Location
    Hampton Roads Virginia
    Posts
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    Default Re: midrange suggestions

    Quote Originally Posted by Wolf View Post
    I thought it was linked above. Oh well...

    BTW- there are 3 versions of that Curv 4" that Linkwitz used; his, and an 8 ohm and 4 ohm version of the unused-by-linkwitz variety that may be cheaper.

    And you have to admit, there is something about Audax Aerogels....
    Later,
    Wolf
    I thought that was the case. I had linked to one of the new Eton Symphony hexacone units which doesn't look too bad either. But if that 3" keronite will have enough output for the project it looks like it could be good.

    I lusted after audax aerogels for a long time back when they were the new thing but never have heard any.

  19. #19
    Join Date
    May 2008
    Location
    Vermont
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    45

    Default Re: midrange suggestions

    I think I'm going to use the Vifa NE123W-08. My question is, can this driver keep up with a pair of RS225-8? It seems as though by the time you subtract baffle step and add bandpass gain, it should do alright. Also, in order to use two RS225, I'll have to buy two more to go with the ones I purchased years ago. Have the specifications of the RS225-8 changed over the years? If so, enough to make a difference?

    Thanks,

    Tom

  20. #20
    Join Date
    Feb 2012
    Location
    Oregon
    Posts
    484

    Default Re: midrange suggestions

    Would the NE123W-08 be better than the SB drivers or just different?

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