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Multi-Way Conventional loudspeakers with crossovers

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Old 18th May 2005, 07:19 PM   #1
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Default "The Monitor"

Exiting new project starting here. (I think so anyway)

A 2-way monitor loudspeaker using Audiotechnology C-Quenze 18H woofer - possibly using two passive radiators. Tweeters - Hiquphon OW II / Morel Supreme 110 / Scanspeak Revelator...

I've put everything on my own homepage so everything can be followed in one place. It won't be finished in a week - but I'll make sure I document everything carefully.

You can find all the details here: http://users.telenet.be/hexateq

I would be particularly interested in any advice with concern to the tweeter choice, passive radiator Y/N ? or the current graph for the C-quenze driver. I do like the styling element of 2 passive radiators although the sonic benefits are not too clear..

Cheers,

Richard
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Old 19th May 2005, 05:53 AM   #2
hyl2369 is offline hyl2369  Taiwan
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i also like the C-Quenze 18H woofer but i can design xover.
if i colud , i would mate it with ow1 or supreme 130.
need one who can design the xover ,thanks.
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Old 30th May 2005, 04:11 AM   #3
hyl2369 is offline hyl2369  Taiwan
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ss9900 is good tweeter mn......

expect to see your next step!
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Old 30th May 2005, 05:06 AM   #4
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Default Re: "The Monitor"

Quote:
Originally posted by richardkrol


You can find all the details here: http://users.telenet.be/hexateq

ALERT - ALERT - ALERT

You know how I'm always complaining about overly large pictures that slow down loading? Well, this one takes the cake. Between the large pics and the slow server I could have gone out and had a couple of beers. My dad had a bypass in less time than it took this site to load.

26+ minutes. I thought I was gonna die.
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Old 30th May 2005, 06:03 AM   #5
ScottG is offline ScottG  United States
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Default Re: Re: "The Monitor"

Quote:
Originally posted by Bill Fitzpatrick
My dad had a bypass in less time than it took this site to load.
ROTFLOL..

took about 20 seconds for me..
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Old 30th May 2005, 06:32 AM   #6
ScottG is offline ScottG  United States
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Default Re: "The Monitor"

Quote:
Originally posted by richardkrol
Exiting new project starting here. (I think so anyway)

A 2-way monitor loudspeaker using Audiotechnology C-Quenze 18H woofer - possibly using two passive radiators. Tweeters - Hiquphon OW II / Morel Supreme 110 / Scanspeak Revelator...

I've put everything on my own homepage so everything can be followed in one place. It won't be finished in a week - but I'll make sure I document everything carefully.

You can find all the details here: http://users.telenet.be/hexateq

I would be particularly interested in any advice with concern to the tweeter choice, passive radiator Y/N ? or the current graph for the C-quenze driver. I do like the styling element of 2 passive radiators although the sonic benefits are not too clear..

Cheers,

Richard

Pardon the pun, but I'm baffled as to why people (all kinds) continue to design their baffles BEFORE optimizing drivers and crossovers. Driver off-set can be rather important to the sound, and unless you can adjust the crossover "on-the-fly" (usually digitally) you are probably not going to get the best sound possible.

As to the driver choices.. what will be the order of the crossover (and what type)? Considering that the AT driver is 6+ inches the 30 degree off-axis mark will likely start deviating around 2kHz, with substantial deviation 60 degrees off-axis at this freq.. If possible I'd shoot for a value of around 1.8-2kHz (preferably 1.8) for your crossover freq.. Considering that most tweeters do not have linear responses much below 1.5 kHz suggests a higher order slope. (i.e. at least 2nd order with 6db down at crosspoint type). Choice of slope (and type) however should also consider the relative phase of the two drivers. Because of the need for a linear response to at least 1.5kHz I'd say the Hiquphon is out. Between the other two tweeters I'd probably pick the one that extended lower at level (i.e. linear).

For the type of venting (taking into account your desired speaker size) I'd seriously consider compound passive radiators as described in the Loudspeaker CookBook. There would be aprox. a 30% increase in volume required, but extension would increase by another half-octave (over a normal bass reflex/passive radiator design) and group delay would be better as well. (..if you want to make a bigger speaker I'd opt for T-line)
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Old 30th May 2005, 07:13 AM   #7
soongsc is offline soongsc  Taiwan
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Default Re: Re: "The Monitor"

Quote:
Originally posted by Bill Fitzpatrick


ALERT - ALERT - ALERT

You know how I'm always complaining about overly large pictures that slow down loading? Well, this one takes the cake. Between the large pics and the slow server I could have gone out and had a couple of beers. My dad had a bypass in less time than it took this site to load.

26+ minutes. I thought I was gonna die.

I didn't know there were people still using modems in civilized areas.
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Old 30th May 2005, 08:51 AM   #8
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Default Re: Re: Re: "The Monitor"

Quote:
Originally posted by soongsc

I didn't know there were people still using modems in civilized areas.
Only 11% in the U.S. have broadband.
The leader is S. Korea at 26%

Trouble is that those with broadband think that everyone has it. That really ticks me off. Regardless, there is no excuse for 500K pics. Idiots.

Like many others, I want it but can't get it.

P.S. What makes you think the U.S. is civilized?
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Old 30th May 2005, 09:34 AM   #9
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Look putting 500k pics on is not idiotic, us with broadband LIKE having large pictures to gander at. The site loaded thru in about 20 seconds for me too. I can understand your pain at these situations but filling up posts about it, quite honestly isnt going to make one iota of difference.
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Old 30th May 2005, 09:47 AM   #10
soongsc is offline soongsc  Taiwan
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Quote:
Originally posted by hyl2369
i also like the C-Quenze 18H woofer but i can design xover.
if i colud , i would mate it with ow1 or supreme 130.
need one who can design the xover ,thanks.
Mail me. Chinese is okay.
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