I have been considering the L.Cao 8" for myself, as wideband midrange drivers. As I can't afford to keep trying different drivers, I am relying on folks like yourself to buy and try them. Please buy some so I can learn from your experience.
Looking here, the rise past 1khz is quite high, 5 or 7db even. Then mix in a 1' wide box with no baffle step. Seems most 8" rise 1-4khz.
But I am impressed that an eq circuit is present. Add baffle step and nice.
http://www.diyaudio.com/forums/vendors-bazaar/127996-new-8-full-range-speaker-l-cao.html
My only concern would be a tiny bit of highs bouncing around by the dust cap. But way better than a whizzer. But a whizzer would help off axis response from 2-4khz. Nelson Liked it.
If I was in the market for an 8", I'd go for it.
Norman
But I am impressed that an eq circuit is present. Add baffle step and nice.
http://www.diyaudio.com/forums/vendors-bazaar/127996-new-8-full-range-speaker-l-cao.html
My only concern would be a tiny bit of highs bouncing around by the dust cap. But way better than a whizzer. But a whizzer would help off axis response from 2-4khz. Nelson Liked it.
If I was in the market for an 8", I'd go for it.
Norman
THis comment a couple of days ago took them off the radar for me.
He is comparing them to the first pair he got which used standard magnets.Recently I got around to trying the L Cao with the Alnico magnets. I was
surprised to find that the response curve was quite a bit different, and the
drivers were accompanied by an LRC designed to notch the midrange
response. Listening to them without the network gave a rather dull
presentation, and with the network I still found the top end pretty soft.
It's a mystery as to why they should be so different, but at this point if you
are considering them you might want to think about a tweeter above 5 KHz.
Only when gated, though with no experience with such measurements, no clue why this would matter. Note his measurements. There's also the possibility that the 'crack' is new spider related [which the whizzer/diaphragm junction would amplify], but even at 1 W/m/5 kHz the excursion would be < the driver’s 1 mm linear excursion.
Regardless, the bottom line for me is that based on what's been presented combined with the driver's published data, IME the drivers aren't defective, just typical whizzer enhanced ones and tsiros will have better luck dealing with whizzer related resonances down low than only up high assuming he's not hearing a signal chain related noise.
GM
As Michael said the drivers he tested were brand new. With my own AN12's there was very noticeable improvements at the 200-300 hour mark. Before that point I did find the speakers to sound more strained at upper volume levels. Somewhere along that 200 - 300 hour period everything improved and the upper volume levels which I very much enjoy started to capture some of the realism of the real event. This was very noticeable with live concert grand piano recordings and vocals. I do not think this is merely a matter of me getting used to them as I move daily from my home to office with different but equally high caliber systems. Anyway the point is that whether the cracking noise was related to whizzer or spider or who knows what, the break in time really does improve the performance. I would think the same will be true for the AN15's so Melon you may be in for a real treat after the 200 hour mark so keep us posted.
Thanks Buzz. You saved me some money. I won't need to test these out after all.
the break in time really does improve the performance. I would think the same will be true for the AN15's so Melon you may be in for a real treat after the 200 hour mark so keep us posted.
These AN15s are allready the best speakers I have heard. I know there is room for improvement, but I will be extremely impressed if they get any better.
The funny thing is I am only using them <300Hz at the moment because I am using the 10 Neo to do midrange and treble.
I will be building an Onken cabinet for the 10s soon, so it will be interesting to see how the 10 Neo sound in a box.
Last edited:
- Status
- This old topic is closed. If you want to reopen this topic, contact a moderator using the "Report Post" button.