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Old 5th March 2013, 06:06 PM   #31
tinitus is offline tinitus  Europe
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Im not suggesting it, just saying....but 'in the old days', a widerange driver with a ribbon top would be a classic

ofcourse nothing is perfect
but not sure I understand why it would be good to mate a very refined ribbon with a dry hard cone

I might consider a 9" Feastrex, if I could afford it
but surely not for playing loud

or there are the French PHY

or how about MANGER
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Old 5th March 2013, 06:37 PM   #32
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When you know these ribbon, you know why. ;-)

Hamm, why do you want To cross that high? Why not at maybe 80hz? A lot of 6 1/2 and 8" can do it in a feine manner.

I don' t understand why are you so married To the small accuton? For the price of the two c90 you could get the c220-222. Makes a little bit mor sense. And under that two 8" or 12".

What spl in your room do you want To achieve ?
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Old 5th March 2013, 06:53 PM   #33
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Quote:
Originally Posted by tr westwood View Post
I don' t understand why are you so married To the small accuton?
I'm looking for good off axis response at 2500hz.

Quote:
Originally Posted by tr westwood View Post
What spl in your room do you want To achieve ?
Impressive SPL. The speakers will also be used for HT.

I'm certainly not the person that should be trying something that is not recommended. So I'll reconsider the C90. Let's start at the ends and find a middle. Suppose I built a three-way with the RAAL 140-15D and two Accuton S280-6-282 woofers. Which Accuton mid-range would fit in the middle using the deqx as an active crossover?

And let me add that I'd only like to consider sealed enclosures.

Last edited by falconsprint; 5th March 2013 at 07:13 PM.
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Old 5th March 2013, 09:18 PM   #34
tf1216 is offline tf1216  United States
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There are documented 3-ways using Accuton drivers online. Take Troels for example, using the C173-6-191E. He shows that good results can be had with an Accuton driver. He said nice things about this version in his Jenzen series.
Jenzen-Accu

You could go all out by getting the C173-6-096E which is expensive and currently used by the likes of Vapor Sound and Clearwave Speakers. There are even builds on HTguide right now using the driver.

You can certainly build a 3-way using an Accuton driver as the midrange. I think you are getting hung up with the trade-offs. Build it and sound will come.

Last edited by tf1216; 5th March 2013 at 09:21 PM.
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Old 5th March 2013, 09:27 PM   #35
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first of all, try to get the DAM version of the raal, it has a way better transformer. it`s really worth the additional price.

the C173-6-191E would be sweet as the midrange. so is the c220-222.

1.6 - 2k 24db crossover for the M - T and you will be fine.
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Old 5th March 2013, 09:36 PM   #36
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Originally Posted by tf1216 View Post
I think you are getting hung up with the trade-offs. Build it and sound will come.
Yep, I agree. I will spend more time looking at documented builds and pick one of the C173 drivers.

Thanks
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Old 5th March 2013, 09:39 PM   #37
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Quote:
Originally Posted by tr westwood View Post
first of all, try to get the DAM version of the raal, it has a way better transformer. it`s really worth the additional price.
I did snag the only two AM core versions Madisound had. Thanks.
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Old 6th March 2013, 01:36 AM   #38
jReave is offline jReave  Canada
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Quote:
Originally Posted by tf1216 View Post
I think you are getting hung up with the trade-offs. Build it and sound will come.
Sorry, don't mean to be contrary, but I think this is absolutely the wrong philosophy in your case. If you're humming and hawing over a $40 or $50 driver, then fine, just build it and see what happens. But in your case, not so much.

Plan it out, explore your options, don't be hasty and get as much confirmation as you can.

For me, my next question is do you want to go sealed, vented or perhaps sealed with a passive radiator or 2 for your bottom end, now that you're not using a sub? In other words, what kind of transient response are you looking for in that frequency range? I'll assume an f3 in the neighborhood of 30Hz.

Once we know that, then we can recommend drivers that will suit. You may want to specify your budget too 'cause right now we're all the way up to suggesting $1000 drivers.

Last edited by jReave; 6th March 2013 at 01:36 AM. Reason: for grammar
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Old 6th March 2013, 02:57 AM   #39
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Quote:
Originally Posted by jReave View Post
For me, my next question is do you want to go sealed, vented or perhaps sealed with a passive radiator or 2 for your bottom end, now that you're not using a sub? In other words, what kind of transient response are you looking for in that frequency range? I'll assume an f3 in the neighborhood of 30Hz.

Once we know that, then we can recommend drivers that will suit. You may want to specify your budget too 'cause right now we're all the way up to suggesting $1000 drivers.
Yep, I understand I need to reset the discussion. Here's what I have in mind:
  1. full range left/right 3-way (equalized flat to 20Hz)
  2. matching center able to go to 120Hz
  3. active crossover with DEQX HDP-4 (max 3-way)
  4. uses RAAL 140-15D AM tweeter
  5. sealed (to simplify deqx measurements)
  6. I like big, punchy, loud, but not fatiguing.
  7. looking to enlarge my soundstage compared to my current speakers (which is how I ended up with the RAALs)
  8. I listen to music with drums, bass, jazz vocals, synths, some orchestra.
  9. will be used for home theater, action movies, high SPL (LFE will be handled with separate subwoofers)
  10. Room has lots of absorption.
  11. No WAF issues
  12. Room is 5 meters by 6 meters.
  13. using solid state amplification with active crossover.
  14. I have above average wood working skills, but not expert.
  15. will accept an ugly get the job done cabinet and then build a nice one later.
  16. I'm ok with the price of the drivers I've mentioned.
  17. 1 or 2 midrange drivers, probably 2 woofers given my desire for full range.
  18. Each midrange or woofer would be amplified seperately, so no low impedance concerns.
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Old 6th March 2013, 03:16 AM   #40
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I just want to add a big thanks for everyone helping me along here. Obviously I came into this lacking some of the necessary fundamental knowledge. And by now you've also figured out that I don't want to start small and work my way up. If you can point me in a 'likely to not fail' direction that's all I ask. I'm looking for a DIY project for my DEQX. I want to use top quality drivers. I figure that I may get it wrong at first. With quality drivers plus the deqx I should be able to eventually get it right.
Thanks
Dave
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