Two way- conventional and coaxial [message #18710] |
Sun, 16 April 2006 12:22 ![Go to next message Go to next message](/forum/theme/AudioRoundTable/images/down.png) |
hurdy_gurdyman
Messages: 416 Registered: May 2009
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Illuminati (1st Degree) |
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Anyone care to comment on the pros and cons of a conventional two way woofer/tweeter horn and similar drivers in a coaxial configuration? Maybe touch on pros and cons of coaxial tweeter horns with the driver mounted behind the woofer's magnet vs those mounted in front of the cone? Dave ![](http://www.audioroundtable.com/emoticons/smiley.gif)
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Re: Two way- conventional and coaxial [message #18720 is a reply to message #18710] |
Wed, 19 April 2006 19:09 ![Go to previous message Go to previous message](/forum/theme/AudioRoundTable/images/up.png) ![Go to next message Go to next message](/forum/theme/AudioRoundTable/images/down.png) |
hurdy_gurdyman
Messages: 416 Registered: May 2009
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Illuminati (1st Degree) |
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I'm asking about coaxials to try and understand better the advantages and disadvantages of using them. I can't find a lot of info on this. I'd be interested in the pros and cons of each way of mounting the tweeter as well, like front mounting vs behind the magnet mouting. What problem does each have and what is good about each. Having the horn meet the cone like one big horn les vs protruding horn in the middle. These just doesn't seem to be much info online, or at least not easily found. Untill recntly, I haven't used a coaxial since my teens. Now it's time to learn about them. Thanks for any help. Dave:)
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Re: Two way- conventional and coaxial [message #18723 is a reply to message #18720] |
Thu, 20 April 2006 12:17 ![Go to previous message Go to previous message](/forum/theme/AudioRoundTable/images/up.png) ![Go to next message Go to next message](/forum/theme/AudioRoundTable/images/down.png) |
GM
Messages: 114 Registered: May 2009
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Viscount |
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Greets! Not much to tell beyond what WP has already said. Mounted in front of a LF driver, the tweeter can only be aligned at the XO point if electronic delay is used, while it can be physically done with the HF driver behind the LF's if properly designed. If the LF diaphragm acts as a horn extension, then its angle(s) and diameter determines its BW gain/polar response, so bigger is better. The abrupt/flexible change at the horn's metal mouth to LF diaphragm transition causes reflections back to the HF horn's throat, modulating its output somewhat, as does the LF's excursion, so won't be nearly as 'clean' as a well designed/built separate horn. Bottom line, where space is a problem and/or the listening position is relatively close, the coax is a better choice IMO than a separate two way of comparable XO point/slope, but as the distance increases and/or the XO gets down around where our hearing acuity starts to roll off pretty good (~1 kHz), then an aligned two way separates makes more sense to me. GM
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