Aurum Cantus or Raven? - diyAudio
Go Back   Home > Forums > Loudspeakers > Multi-Way

Multi-Way Conventional loudspeakers with crossovers

Please consider donating to help us continue to serve you.

Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving
Reply
 
Thread Tools Search this Thread
Old 19th October 2005, 09:43 PM   #1
diyAudio Member
 
Join Date: Jan 2005
Location: Ohio
Default Aurum Cantus or Raven?

Hey folks. I am putting a new speaker system together that is going to consist of a full ranger (Fostex FE168E Sugma) crossed over to a tweeter. (12" woofer on the low end) I'm going to start using the tweeter as a supertweeter, then I'd like to experiment crossing it in a bit lower, say around 5-7k or so to smooth out the top end.

I thought I'd bring this up over here, assuming you have more experience with tweeters. My original thought was to use a Fostex horn tweeter. Then, with some research, I'm leaning towards a ribbon.

But, which one. If I was going to stick with the supertweeter concept, I'd probably just run with the less expensive Aurum Cantus G2si. But, being that it will cover a wider range down the road, I'm inclined to kick it up a notch.

The Aurum Cantus G2 is at about the top of what I planned to spend. However, if it's really worth the extra to go for the Raven R1, I could make it happen.

Anyone heard both or have a preference? Is there much of a difference? Appreciate any thoughts you'd like to share. Cheers!
  Reply With Quote
Old 19th October 2005, 09:56 PM   #2
Illusus is offline Illusus  Canada
diyAudio Member
 
Illusus's Avatar
 
Join Date: Sep 2002
Location: Prairie Wasteland, Canada
I've got a similar set up to what you have planned, 15" JBL E-140 + Fe166es-R + A.C. G3. I like the ribbon and am very happy with it. The G3 is overkill for the application and I'm fairly positive the G2si would have been enough(I heard one in a different app. and thought it sounded terrific).
The ribbon and fostex driver compliment each other very well, the two really gelled after I removed the whizzer from the fostex and installed a phase plug...seemingly seamless transition after the treatment, before it there was a bit of ragged-ness and confusion around the xo point. The treatment also smoothed out the mid range and added some detail and dynamics.
Can't comment much on the Raven as I've heard one only briefly and a relatively long time ago, but, if nothing else, it's a beautiful piece of engineering. I'd use one if money was a non-issue.
__________________
Fighting the program since 1976.
  Reply With Quote
Old 19th October 2005, 10:21 PM   #3
diyAudio Member
 
Join Date: Jan 2005
Location: Ohio
Illusus

Good to hear from you. Yes, I saw something I liked in your set-up. After much research and messing around, I am going in about the same direction, only with the Fostex 12" FW305 woofer and 168E Sigma, (168 on open baffle). I also have a pair of the 166es-rs to play with. I'll be crossing the low end at 200 hz.

If you don't mind, where are you crossing in the ribbon and what kind of crossover are you using? Do you like the ribbon a lot better than the 166 alone?

I'm basically just trying to decide if the Raven is worth the extra $$.

Thanks!
  Reply With Quote
Old 19th October 2005, 10:24 PM   #4
Variac is offline Variac  United States
diyAudio Editor
 
Variac's Avatar
 
Join Date: Dec 2001
Location: San Francisco, USA
I run a 2si crossed about 5k above a FE208 sigma

It seems like the bigger, more expensive ribbon tweets are ones that cover most of the mids too. 5k is still a pretty high cross for a tweeter, most tweeters are crossed much lower. IMHO prob isn't as crucial.

I think at 5-7 k the 2si would be perfect, and isn't it a third of the price of the Raven?

I approve of your approach- try 'em as super tweets and enjoy, but also try crossing lower-it might well sound better, and the cross is still above the most crucial part of the midrange..(lower is probably harder to get right, but until you do , you have the super tweeter approach.

If the price of the 2si is what you want to pay, I'd say its a no-brainer. Get 'em and you will be THRILLED.
  Reply With Quote
Old 20th October 2005, 12:45 AM   #5
Illusus is offline Illusus  Canada
diyAudio Member
 
Illusus's Avatar
 
Join Date: Sep 2002
Location: Prairie Wasteland, Canada
In my situation the best results are with the XO at ~about 7kHz (it was actually a second hand recommendation from Dave D.). I tried the xo point from 10k through 6k. I think it has a lot to do with the 'whizzerectomy', which may(I haven't measured yet) have given the Fostex a nice roll-off in that 7k range...the Sigma should integrate nicely. I think that above that combing becomes a bigger issue due to spacing between the drivers. I'd love to try a pair of Sigmas myself but I'm short on funds for a couple months. I have a great design idea for the 166es-r's so when the $ starts flowing again I'll, most likely, buy a pair of Sigmas for the OB's.

I definitely prefer the sound with the tweeter in. It went from 'wow' to 'holy wow!'. The hf detail is amazing and remains easy on the ears. The added hf information rounds out a lot of mid frequencies, some sounds now have resonance artifacts which were missing earlier; decay of cymbals and string instruments became more realistic, ie. longer and more pronounced... twelve string numbers are simply amazing. Everyone that has heard the change so far has made similar comments (so I'm not crazy or everyone I know is just as). For me, a good super tweeter is now almost a must have not just a nice addition. It's still not an absolute necessity for a 'religious' listening experience but it sure helps.
__________________
Fighting the program since 1976.
  Reply With Quote
Old 20th October 2005, 01:02 AM   #6
diyAudio Member
 
Cloth Ears's Avatar
 
Join Date: Dec 2001
Location: Melbourne, Australia
Had a mate down here in Aus who went through a couple of replacement ribbons for the R1 - although he was crossing it a bit lower than 7K. The Aurum Cantus have pretty much the same sound, so I think they're better value then the Raven.

Go for the smaller one, as the longer ribbons don't have as good dispersion vertically as the shorter ones (I'm spoilt by the folded ribbon in my Elacs, and am always comparing). I'm currently working on some sort of phase plug/shallow horn to try and get better vertical dispersion for my G3's (but all it's doing is showing up my lousy wood-working skills.
__________________
Jont.
"It is impossible to build a fool proof system; because fools are so ingenious."
  Reply With Quote
Old 20th October 2005, 01:51 AM   #7
cfbuck is offline cfbuck  Canada
diyAudio Member
 
Join Date: Mar 2004
Location: London, Ontario
one1speed,

Just a note on the Raven R1--I had Dennis Murphy design a xover for a 2-way using a Seas W15CY and the Raven. He crossed it at 2700 which was a little low for the Raven but necessary for the Seas. The R1 would prefer at least 3000 so this is well within your parameters. He was astounded at the horizontal dispersion of the Raven--it remains remains consistently the same, as I recall, to 80 degress off axis. He had never seen anything like it. I think that Rick Craig of Selah Audio said this was because it is horn loaded.

Cheers, Fred
  Reply With Quote
Old 20th October 2005, 01:18 PM   #8
diyAudio Member
 
Join Date: Jan 2005
Location: Ohio
Thanks much, appreciate all your thoughts!

cfbuck, that's interesting. I wondered about that after reading that the vertical dispersion was an issue in many cases.

Cheers!
  Reply With Quote
Old 20th October 2005, 07:15 PM   #9
frugal-phile(tm)
diyAudio Moderator
 
planet10's Avatar
 
Join Date: Oct 2001
Location: Victoria, BC, NA, Sol III
Blog Entries: 5
Quote:
Originally posted by one1speed
vertical dispersion was an issue
The longer the ribbon the poorer the vertical dispersion. For HF you could generalize that the smaller the tweeter the better.

dave
__________________
community sites t-linespeakers.org, frugal-horn.com, frugal-phile.com ........ commercial site planet10-HiFi
p10-hifi forum here at diyA
  Reply With Quote
Old 20th October 2005, 08:20 PM   #10
Variac is offline Variac  United States
diyAudio Editor
 
Variac's Avatar
 
Join Date: Dec 2001
Location: San Francisco, USA
Quote:
He was astounded at the horizontal dispersion of the Raven
This is the other hand of the vertical dispersion.

A ribbon is quite tall relative (even the 2si) to a dome which limits dispersion vertically but relatively narrow (like 10mm) which gives better horizontal dispersion...

An advantage of the LCY ribbon tweets is that the have a bout equal hor and vert disp:

http://www.e-speakers.com/products/lcy-components.html
  Reply With Quote

Reply


Hide this!Advertise here!
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Aurum Cantus G1 tolits Multi-Way 0 10th August 2009 01:23 AM
Hp Aurum Cantus fiscal Multi-Way 14 25th March 2009 10:28 PM
Aurum Cantus mandoman Multi-Way 35 21st August 2007 02:21 AM
Which brands and models use RAVEN, Aurum Cantus or ER4 from Eton Adrie Multi-Way 4 30th April 2004 04:41 PM


New To Site? Need Help?

All times are GMT. The time now is 05:48 PM.


vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2014 DragonByte Technologies Ltd.
Copyright 1999-2014 diyAudio

Content Relevant URLs by vBSEO 3.3.2