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Aurum Cantus G2Si Ribbon Tweeter group buy

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#62
WIKI is up

Hi there everyone

The Aurum Cantus Group Buy WIKI page is finally up. At the moment it is residing under Wanted Pages, but should be available under the Everything Else category shortly. Please check the details of your orders and let me know if there are any errors.

I am hoping that we can place the final order some time next week.

Best regards

Dirk
 
#63
Just an update on the Aurum Cantus group buy

By now everyone have been notified about paying for the tweeters that they ordered. I am hoping that all payments will have been made by early next week. The order for the tweeters wiill be finalised next week and they should be available for shipping out about ten days after that.

If anyone else wants to join in, this is the last chance!

Regards

Dirk
 
#64
I just noticed this thread and find it quite funny that people are now trying to marry the Proac 2.5 clone with a ribbon tweeter considering that I proposed this concept some 2yrs ago using the Raven R-1 tweeter - only to be somewhat flamed at the time by the techie types who said it could not work!

My experience is that the 2.5 clone is MUCH MUCH improved by adding a ribbon tweeter, heading it towards Hi-End territory! So keep perservering with the Aurum Cantus G2-Si as the Raven R-1 certainly works for me ...the whole speaker becomes twice as good.

Regards,

Steve M.
 
#65
Hi there Steve M

I am very keen to try ribbon tweeters with the 2.5 clone. Thanks for your words of encouragement. I will post the results once they are done.

Maybe you could be persuaded to post the crossover design that you used?

Regards

Dirk
 
#66
Hi Dirk,

I'm no expert in x-o design but do consider myself to have good audio experience and keen ears.

The Raven R-1 tweeter I use is the older Mk I version with 4 ohm impedence. I stumbled across the 'right' sounding crossover point by accident really. I initially calculated and built a third order crossover thinking the R-1 that I had was 2.5 ohm (instead of 4 ohm), but in any case the speaker sounded very good with this first x-o. I then built a properly calculated third order x-o with a targetted crossover point of 2,800 Hz thinking this would be a good match for the 2.5 clone, strangely it did not sound very good (quite squawky).

I estimate that the original (slightly botched but good sounding) crossover for the Raven is crossing quite high at around 4,500 Hz. Although this would appear to be a mis-match for the 2.5 crossover point, it does nonetheless sound the best of the two. I much prefer the overall complexion of the Raven in the 2.5 clone compared to the original Scanspeak tweeter. The speaker has much better transient response, sounds faster, is more detailed and more audiophilish with the Raven added. That muddled midrange (in ultimate terms) of the the stock 2.5 diminishes significantly.

IMO, the smaller ribbon tweeters like the R-1 sound better crossed over high at 3,500 Hz ++. They are really better used in threeway designs being not so good at doing mid frequencies, where they can sound a bit hard and metallic. The bigger Raven R-2 (with better midrange) in the 2.5 clone would fill in the gaps nicely and sound awesome I reckon!

Lets not forget that the Proac 2.5 is an accomplished speaker sounding very musical, with excellent bass packaged in a room friendly size punching way above its weight. So these attempts to improve its upper midrange and treble by adding ribbon tweeters is definitely worthwhile, IMO ...

Regards,

Steve M.
 
#68
Hope I am not too late yet

Dagsê Dirk

Ek sal die geld morê oggend in jou rekening plaas. Ek sal R800 voorlopig inbetaal, en dan moet jy my sê hoeveel ek nog moet inbetaal vir die posgeld. Ek hoop dit is nie te laat nie.

Deon
 
#70
I have been requested by some of the group buy members to post an update to (what has turned out to be a bit of a mission) the AC group buy.

First the good news. The local distributor has ordered the tweeters and they should arive in SA very soon. I will post an update once they have landed.

Now for the bad news. The payments from Scott and Irwin are still outstanding. As I have already committed myself to taking the tweeters this is cause for concern. Could the gentlemen involved please sort out your payments as a matter of great urgency.

Thank you to the determination of some of you guys for making payments. In some cases it has not been easy, but I truly appreciate the effort.

Regards

Dirk
 
#72
Thanks for the update Dirk, and thanks for putting the group buy together. I've already got a pair of these, so I know how good they are, but for those buying blind on reputation, you're in for a treat. As it happens I was visiting a fellow enthusiast in London yesterday who was playing me some excellent music through his speakers, which are pentagonal MLTL-48 enclosures with Jordan JX92S and G2si ribbons. Lots of detail, space and generally a very lively clean sound. It's almost a cliche, but they really did remind me of the original Quad electrostatics, but without the beaming problems. If anything the high treble is a little better than I remember the Quads, and the bass certainly goes deeper. Another advantage is that these do image depth, even though they were backed against a wall! I hope that's whetted a few appetites...
 
#74
DirkD said:
I have been requested by some of the group buy members to post an update to (what has turned out to be a bit of a mission) the AC group buy.

First the good news. The local distributor has ordered the tweeters and they should arive in SA very soon. I will post an update once they have landed.

Now for the bad news. The payments from Scott and Irwin are still outstanding. As I have already committed myself to taking the tweeters this is cause for concern. Could the gentlemen involved please sort out your payments as a matter of great urgency.

Thank you to the determination of some of you guys for making payments. In some cases it has not been easy, but I truly appreciate the effort.

Regards

Dirk
Click to expand...


This is a serious bummer, since I mailed my payment months ago. I sent a packet of American Express Travelers Checks because no one else would send monetary instruments to SA. I sent them international express mail via the US post office. They might not honor the refund policy because I signed them twice not in front of the recipient.
 
#75
Hi there Scott Wurcer

My apologies. Off course I received your payment. The Scott that I had in mind was Scottfx2 residing in France. Sorry about the mix up. It was not intentional. Scottfx2, if you read this, please contact me urgently so that we can arrange for payment.

Dirk
 
#79
Will said:



Tried that... Nah...

Prices are higher than group buy, and lead time is 3 weeks minimum...

will.
Click to expand...

As I mentioned, depending on where you are located. If you are in USA or Canada, then price is about the same once shipping is factored in. That is all I was trying to point out. Well that and Bob and CSS are awesome to deal with overall...great company, great products. When did you check last with him about the lead time may I ask? I heard they were due in almost any day now.

Noidster
 
#80
theNoid said:


As I mentioned, depending on where you are located. If you are in USA or Canada, then price is about the same once shipping is factored in. That is all I was trying to point out. Well that and Bob and CSS are awesome to deal with overall...great company, great products. When did you check last with him about the lead time may I ask? I heard they were due in almost any day now.

Noidster
Click to expand...

Checked with Bob last week, I actually made the purchase on my credit card only to receive a mail from Bob stating bout the lead time, which he instantly refunded me. Yes, great guy !


will.
 
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