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Multi-Way Conventional loudspeakers with crossovers

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Old 2nd March 2020, 06:27 PM   #3281
djn is offline djn  United States
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I just looked at all the data again. Those might sound really good with just those and a couple subwoofers. I could not find any data on the compression driver but it certainly looks stout.

The data does not say much about the crossover but the frequency graph looks smooth which indicates there is some sort of crossover there.

I was also surprised at how expensive they are.
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Old 3rd March 2020, 12:37 PM   #3282
Pharos is offline Pharos  United Kingdom
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Originally Posted by planet10 View Post
We have taken a couple of those and reengineered them to get some big gains in performance. One was new cabs + a midrange, the other, my favorite replaced the bottom end with a pr of Fostex bass drivers in a push-push enclosure.

dave
I know that this is a very late response, but I did a Rebuild of ESS AMT 1Bs to 1Es, and then again replacing their woofers with BBC LS 5/8 mid/woofers, curvilinear and smooth.

I put in an attenuator switch of +/- 5dB as well as a very expensive French pot of +/- 5db to give the Heil a range of 10dB in 0.3dB steps.

I also raised the lower plinth part 4" to 7" in total, raising the Heil to ear height and increasing the internal volume to about 105lt.

It is a shame that the Heil has had very little work done on it in 40+ years.
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Old 6th March 2020, 11:13 AM   #3283
DorinD is offline DorinD  Romania
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Quote:
Originally Posted by djn View Post
... The data does not say much about the crossover but the frequency graph looks smooth which indicates there is some sort of crossover there... I was also surprised at how expensive they are.
They say it's crossed at 1.5kHz; some day I will check the passive crossover and post the details.

As I said, I've got a very good deal for a new pair but more am I thinking about the nominal price (2500 euro/pair) it's still decent if you compare it with Atlas Sound which is more expensive and bigger than needed All Weather High-Output Stadium Horns Available In Multiple Sizes and Coverage Patterns | AtlasIED

Anyway, I cannot imagine any reasonable DIY attempt to cast or else such huge rigid structure. IMO, the main reason for the big improvement I can hear compared to previous horns is down to rigidity and mass.
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Last edited by DorinD; 6th March 2020 at 11:16 AM.
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Old 15th March 2020, 02:15 AM   #3284
MITsound is offline MITsound  Canada
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Default Still Figuring out which one to run

I've finished a pair of Revelator based satellites, passively filtered at 90 hertz, with some inexpensive MKP Audiophiler caps, Solen Split to the AMT tweeters at 5000 hertz, with a Solen Hyperlitz inductor, and some KZK film and tinfoil caps. All cabinets are sealed.
The satellite on the left is based on the Bohlender Graebener Neo 10. Here, they are isobarically installed, facing the same way, so the magnets don't repel each other. It's paired with a 4 ohm Scanspeak fabric dome tweeter, for better off axis listening than my Neo 3PDR.
It's Solen Split at 200 Hz, and 5000 hertz, with some Dayton 5% caps on the Planar mids, and some Mundorf EVO Aluminum Oil caps.
Going to listen awhile, before deciding if I'll make another planar.
So far, it sounds better than the Revelators, but at more than double the price in drivers, I think it shouldn't be close.
Others have been so happy with their Neo 10s, even a few customers who've bought my designs with them. I just feel like I've never gotten the best out of them.
These do sound excellent, and I shouldn't grouch about them sounding better than my Revelators.
Isobarically does make a more forceful presentation; I always found them a little lacking in excitement, or dynamic snap, in Helmholtz tuned enclosures, open baffle, or in skeletal " cabinets", with solid tops and bottoms, and thick felt cloth sides.
Anyways, I'll leave in for a while, then decide on their future. I've been using an old Polk 10" sub, but tonight I'll pair them up with one of my RSS265HF-4 subs, magnet out in a 1 foot sealed cabinet, densely packed with wool, powered with an older Dayton 1000 watt plate amp.
Any one here tried the planars in sealed cabinets before?
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Old 27th March 2020, 09:24 AM   #3285
spendormania is offline spendormania  Germany
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A cheap 2-way with Tesla ARN 5614 and Wacecor TW022WA05, drivers coming secondhand and from ebay. Crossover at 2.250 Hz and yes, the felt triangle is improving the sound ;-).
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Old 29th March 2020, 09:03 AM   #3286
manninen is offline manninen  Finland
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Click the image to open in full size.
Allready dismantled old setup.
funktion one res2 top
inlow 135hz
bms 862 6th order bandpass
plm10000q per channel fir crossed 135/400/5770

Isolation system renew going on
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Old 29th March 2020, 12:35 PM   #3287
DorinD is offline DorinD  Romania
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Nice horn system, perfectly crossed over for human voice IMO. I had no experience with a Funktion-One mid and curious how it sounds compared with a compression driver equipped horn.
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Old 29th March 2020, 12:39 PM   #3288
kipman725 is online now kipman725  United Kingdom
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Defiantly a unique system!

I have always wanted to see real measurements of F1 gear, do you have any of your Res2?
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Old 29th March 2020, 12:51 PM   #3289
manninen is offline manninen  Finland
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res2īs are for sale, few people have been interested but maybe cause covid i still have those. yes many measurements and two improvements done
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Old 30th March 2020, 01:42 AM   #3290
ScottG is offline ScottG  United States
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Originally Posted by manninen View Post
Allready dismantled old setup.

Isolation system renew going on
-"sounds" very familiar, build it (..in my case: never really fully finishing - aesthetically), tear it down, and eventually re-purpose it.

I'm on the "re-purpose" drivers stage myself right now with an HT system.
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