There are other ways to get big sound
Yes this was my bright idea!
It's the cabinet for a backloaded horn/driver array. I'm 1.89 m or 6'2". The cabinets were 1.55 m or about 60 inches high.
I designed and built the cabinets, veneered them with a client. Showed him a few tricks as well.
From the beginning the design philosophy was basically the same as put forth in the posts above. Very high efficiency and very high headroom.
Also it was design from the beginning to be an array of drivers.
The mids are 98 db/ watt each. So in an array they crack 103 db/watt. The woofers are 96 db/watt so they added up to 99 db/watt in actual use.
And they were active. Enormous power reserves. And dynamics up to ying yang.
It was a fun ride.
Yes this was my bright idea!
It's the cabinet for a backloaded horn/driver array. I'm 1.89 m or 6'2". The cabinets were 1.55 m or about 60 inches high.
I designed and built the cabinets, veneered them with a client. Showed him a few tricks as well.
From the beginning the design philosophy was basically the same as put forth in the posts above. Very high efficiency and very high headroom.
Also it was design from the beginning to be an array of drivers.
The mids are 98 db/ watt each. So in an array they crack 103 db/watt. The woofers are 96 db/watt so they added up to 99 db/watt in actual use.
And they were active. Enormous power reserves. And dynamics up to ying yang.
It was a fun ride.
Faital 10" ??
Regards
Charles
Edit: Forgot to mention: very nice craftmanship !!
2nd Edit: Had a look at your website and I have seen that they were most probably custom made woofers ! 😎
3rd edit: You were quicker in posting than me ! But thanks for letting us know !
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Faital 8's
In room this speaker was flat to 14 hertz.
It definitely did not need a subwoofer.
In fact although we brought one to the show we only ran it for less than a half hour.
In room this speaker was flat to 14 hertz.
It definitely did not need a subwoofer.
In fact although we brought one to the show we only ran it for less than a half hour.
[QUOTE
Edit: Forgot to mention: very nice craftmanship !![/QUOTE]
Thanks!
It did take a while to design and fabricate.
But oh was it worth the efforts.
Think Klipsch horn without the limitations in the low end and the not so clean top end.
Edit: Forgot to mention: very nice craftmanship !![/QUOTE]
Thanks!
It did take a while to design and fabricate.
But oh was it worth the efforts.
Think Klipsch horn without the limitations in the low end and the not so clean top end.
You guys have me confused now. 🙂 My fault, not yours, I'm sure.
With all the suggestions about considering pro drivers, I started looking at some. I opened a bunch of 10" Eminence drivers in WinISD and dropped them into closed boxes. None of them had a sealed enclosure F3 as low as the Dayton RS270.
So I went to Parts Express and started looking at pro drivers. I looked at the specs for a bunch of 12" drivers and all of them I checked had Fs at or higher than my desired crossover point. So F3 in the Parts Express recommended sealed enclosures was way, way higher than I need.
I understand that I can use a Linkwitz Transform to bring the F3 down but I don't understand why I would want to use pro drivers requiring the Linkwitz Transform when there are hi fi drivers available that seem to fit my application out of the box.
I'm guessing there must be advantages to the pro drivers I'm not understanding. I know the sensitivity is high for most of the pro drivers, along with the power handling, so extremely high SPL levels are possible, or huge headroom. But won't the Linkwitz transform use up a fair portion of the headroom, just to get them to the curve I'm starting with by using the RS270?
What am I missing here?
Thanks,
Chris
With all the suggestions about considering pro drivers, I started looking at some. I opened a bunch of 10" Eminence drivers in WinISD and dropped them into closed boxes. None of them had a sealed enclosure F3 as low as the Dayton RS270.
So I went to Parts Express and started looking at pro drivers. I looked at the specs for a bunch of 12" drivers and all of them I checked had Fs at or higher than my desired crossover point. So F3 in the Parts Express recommended sealed enclosures was way, way higher than I need.
I understand that I can use a Linkwitz Transform to bring the F3 down but I don't understand why I would want to use pro drivers requiring the Linkwitz Transform when there are hi fi drivers available that seem to fit my application out of the box.
I'm guessing there must be advantages to the pro drivers I'm not understanding. I know the sensitivity is high for most of the pro drivers, along with the power handling, so extremely high SPL levels are possible, or huge headroom. But won't the Linkwitz transform use up a fair portion of the headroom, just to get them to the curve I'm starting with by using the RS270?
What am I missing here?
Thanks,
Chris
Are you guys trying to tell me I'm looking at a low pass frequency too low if I want my mid bass modules to be suitable for use with wave guides for my mids and highs?
From what I've read about the RS270, I could run them up quite a bit higher, like maybe as high as 600 - 700 Hz.
I know it probably sounds like I'm already married to the RS270. I'm not, and will remove them from consideration if there's a good reason. But I did do quite a bit of searching and reading before latching on to them as fitting what I want to do.
-Chris
From what I've read about the RS270, I could run them up quite a bit higher, like maybe as high as 600 - 700 Hz.
I know it probably sounds like I'm already married to the RS270. I'm not, and will remove them from consideration if there's a good reason. But I did do quite a bit of searching and reading before latching on to them as fitting what I want to do.
-Chris
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Regarding the lack of bass at my listening position, I was trying to say that it might actually be a positive thing. I was able to get a pretty darn flat response from 20Hz to 90Hz once I put some serious cone area in place with the dual 15" subs. And that's with both subs sitting in between the mains.
So, this suggests to me that I may be able to do the same with the rest of the bandwidth below the Schroeder frequency, with my mid bass modules right where my tower mains are sitting now.
I know I didn't explain this thought very well in my earlier post.
-Chris
So, this suggests to me that I may be able to do the same with the rest of the bandwidth below the Schroeder frequency, with my mid bass modules right where my tower mains are sitting now.
I know I didn't explain this thought very well in my earlier post.
-Chris
I started to mention that both you and your speakers were in a room null [odd order harmonic], so not going to have much luck getting any bass efficiency, but figured a 'picture was worth a thousand words', so posted a link with this info and so much more.......
GM
GM
Thanks. I assumed it was specifically about sub bass and bookmarked it but haven't read any of it. I'll take a look after work.
-Chris
-Chris
I think those are internal braces for the speaker. 😀
The speakers look pretty awesome to me even without 60 drivers though.
-Chris
Check out the thread below if you haven't seen it.
making-two-towers-25-driver-full-range-line-array.html
AHAH! Chris you don't have seen manninen own project! He is the IRONMAN on this forum:
http://www.diyaudio.com/forums/multi-way/272346-manninen-presents-steel-real.html
😉
Ok so you must be aware that pro audio drivers are designed to happily fullfill torture: usually PA engineer use them to X mecha (X-damage) for long hours during live events. Don't try that kind of thing with most of hifi drivers. 😉
They are usually designed to have low thermal compression too and if you are looking for headroom... 😀
I don't know for the other but for me yes you are looking for too low crossover freq for your sub to your mid (given the sketch of your room)... and not high enough for your mid to your high frequency! 😉
...especially if you want to locate your sub so close to your med/high. In this case you could see your system as a 3 or 4 way tower.
OT: Chris check your mails... you have readings waiting for you.
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It is indeed.
A real party animal.
500 watts to the tweeter, with proper limiter of course.
500 to the mids, again with a limiter.
1200 watts to the woofers.
Lets say that the amps never even break a sweat.
I listened to a private recording of fireworks on this pair. Used to be available from Tom Danley's site.
It was one interesting experience.
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