Hi all. I'm interested in trying some Emilar drivers, but am not finding much in the way of technical details to differentiate between the different drivers Emilar made to cover the 500-15KHz+ range. Is this info out there?
What I (think I) know so far:
- The EA-175, EC-175, EK-175 and ECH-175 all seem to be using the same diaphragms.
- The EA are the only ones of the bunch to use alnico magnets.
Outside of that they sound pretty similar. What are the differences?
What I (think I) know so far:
- The EA-175, EC-175, EK-175 and ECH-175 all seem to be using the same diaphragms.
- The EA are the only ones of the bunch to use alnico magnets.
Outside of that they sound pretty similar. What are the differences?
For the record, my assertion/assumption that they all seem to be the same diaphragm is based on the fact that Radian states in their catalog that their 1175 diaphragm will fit all of these. I guess there's still the possibility that there are differences in the stock diaphragm?
I have a pair each of ea and ec. Never used ek series.
They are both fine drivers imho and indeed share the same diaphragms. It's been a long time since I had the ea in a system but iirc they hit about 12khz and the ec goes to about 14k. I run the ec in the main system mainly because I've been too lazy to bolt up the ea since getting horns back in the main system.
I can post a recent rew measurement of the ec on a mid 80s renkus 500hz CD horn tomorrow when I'm at the pc if you'd like.
This is the hf setup in the Rauland mls1 and it sounds really fine. There's a pdf datasheet on that cab if you Google.
I prefer to cross at about 975hz to a 2220h in jbl 4560 lr4. I have a peq at about 2300hz -5db q=1.0 and with this I get pretty much flat response out of the top end until it runs out of steam at the top. They sound good even without the eq though. Some people actually prefer a peak in that same region, I belivefhat has underpinnings in some past psychoacoustic studies. But I like a darker top end and prefer to eq that out myself. My 10x10 room probably has a lot to do with needing to tame that a bit too. Yeah 4560s work fine in a small room at reasonable volume. I sit about 8 feet back from acoustic center near the back wall. It's all good.
Emilar rated these for 500hz but they fall like a stone just over 800hz. Definately wouldnt cross them lower than about 900. The stock mls1 xo was 800 and there was a big hole there until I switched to lr4 and bumped it up to about 950hz or so. That said the hole in that region wasn't that offensive as far as these things go. It rather have a little hole vs other sins. But it's easy enough to work around too so why not.
Sorry for rambling. I don't post much but this in my wheelhouse a bit so I hope it helps. If you can get away with crossing closer to 1khz you won't regret purchasing these. Look for renkus branded ones on the 'bay they often sell for much less for the exact same thing but don't come around as often. I think jammin' jersey has them too.
They are both fine drivers imho and indeed share the same diaphragms. It's been a long time since I had the ea in a system but iirc they hit about 12khz and the ec goes to about 14k. I run the ec in the main system mainly because I've been too lazy to bolt up the ea since getting horns back in the main system.
I can post a recent rew measurement of the ec on a mid 80s renkus 500hz CD horn tomorrow when I'm at the pc if you'd like.
This is the hf setup in the Rauland mls1 and it sounds really fine. There's a pdf datasheet on that cab if you Google.
I prefer to cross at about 975hz to a 2220h in jbl 4560 lr4. I have a peq at about 2300hz -5db q=1.0 and with this I get pretty much flat response out of the top end until it runs out of steam at the top. They sound good even without the eq though. Some people actually prefer a peak in that same region, I belivefhat has underpinnings in some past psychoacoustic studies. But I like a darker top end and prefer to eq that out myself. My 10x10 room probably has a lot to do with needing to tame that a bit too. Yeah 4560s work fine in a small room at reasonable volume. I sit about 8 feet back from acoustic center near the back wall. It's all good.
Emilar rated these for 500hz but they fall like a stone just over 800hz. Definately wouldnt cross them lower than about 900. The stock mls1 xo was 800 and there was a big hole there until I switched to lr4 and bumped it up to about 950hz or so. That said the hole in that region wasn't that offensive as far as these things go. It rather have a little hole vs other sins. But it's easy enough to work around too so why not.
Sorry for rambling. I don't post much but this in my wheelhouse a bit so I hope it helps. If you can get away with crossing closer to 1khz you won't regret purchasing these. Look for renkus branded ones on the 'bay they often sell for much less for the exact same thing but don't come around as often. I think jammin' jersey has them too.
Last edited:
No problem, appreciate the input. It's nice to hear about different setups people build around this kind of stuff. That's especially useful input about their real usable range.
I'm starting to think that the "H" in "ECH" might be for "High" - I've seen some pics where the back plate is stamped with "500-17KHz". Maybe they sacrifice a bit of efficiency to get there? Sounds like these things are plenty loud for anyone's non-PA tastes regardless.
The EK seems to come in a couple different form factors, one matching the EA and ECs' older look, and one that seems to resemble Radians more. Maybe they're actually the same drivers inside just with a different back plate exterior or something like that? Who knows.
I'm starting to think that the "H" in "ECH" might be for "High" - I've seen some pics where the back plate is stamped with "500-17KHz". Maybe they sacrifice a bit of efficiency to get there? Sounds like these things are plenty loud for anyone's non-PA tastes regardless.
The EK seems to come in a couple different form factors, one matching the EA and ECs' older look, and one that seems to resemble Radians more. Maybe they're actually the same drivers inside just with a different back plate exterior or something like that? Who knows.
Here's some ( stitched together ) info for you ( from 1979 );
If one's EA-175 model is only making it up to 12K that would suggest that it needs a remag ( from GPA, as one supplier ).
Sorry but I have nothing on the EK model.
🙂
If one's EA-175 model is only making it up to 12K that would suggest that it needs a remag ( from GPA, as one supplier ).
Sorry but I have nothing on the EK model.
🙂
Last edited:
Thank you so much!
I managed to round it out with a data sheet on the EK-175 from ebay: Emilar - Model EK 175 High Frequency Compression Driver - DATA SHEET | eBay. Attached the image here in case it goes down. Looks like maybe it extends a bit higher yet.
I managed to round it out with a data sheet on the EK-175 from ebay: Emilar - Model EK 175 High Frequency Compression Driver - DATA SHEET | eBay. Attached the image here in case it goes down. Looks like maybe it extends a bit higher yet.
Attachments
I took some raw measurements of an EC175 today. Here's the response and distortion plots from REW. These are currently mounted on Renkus CBH-500 horns ftp://ftp.renkus-heinz.com/Legacy_Products/Datasheets_and_Drawings/Aluminum_Horns/CBH500_data.pdf
I also found a datasheet for the EC-175.
Next weekend I'll try to mount up an EA-175 on the same horn and grab some measurements.
*** Edit: BTW, the REW measurements are about 5-10 degrees off-axis BTW. I point them behind my head. Also I have a Renkus 1" to 2" adapter on the horns since the CBH500 is a 2" entrance. ***
I also found a datasheet for the EC-175.
Next weekend I'll try to mount up an EA-175 on the same horn and grab some measurements.
*** Edit: BTW, the REW measurements are about 5-10 degrees off-axis BTW. I point them behind my head. Also I have a Renkus 1" to 2" adapter on the horns since the CBH500 is a 2" entrance. ***
Attachments
Last edited:
Here's some photos too.
Attachments
Last edited:
Late reply, but thanks for the info jdarg. The response graph is super helpful.
Any info out there on throat exit angles? I ended up with two ECH-175s. The sound is every bit as smooth as everyone says. Still working on getting the perfect horns to mate them with though.
Any info out there on throat exit angles? I ended up with two ECH-175s. The sound is every bit as smooth as everyone says. Still working on getting the perfect horns to mate them with though.
- Status
- Not open for further replies.