Dome Midrange Drivers For Mac
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The high frequencies are handled by a pair of 1' double dome tweeters, while midrange frequencies are provided by two 3.5' FST (Fixed Suspension Transducer) cone drivers; each tweeter & midrange driver is powered by a discrete 25 watt amplifier. XtremeMac’s Tango Bar™ speaker let’s you enjoy audio from the computer like never before with cutting edge technology that delivers twice the output power of most traditional USB speakers. There is a six speaker configuration with dual dome tweeters, midrange drivers and passive radiators. The XtremeMac Tango Bar has been designed to sit neatly just underneath your iMac screen or Cinema Display and is equipped with a 6 speaker configuration consisting of dual dome tweeters midrange.
Jul 07, 2016 Soft Dome Midrange. Discussion in 'Home Cinema Speakers' started by bluedroog, Feb 4, 2011. Feb 4, 2011 at 10:09 AM. Bluedroog, Feb 4. It can really be a difficult process if you are using off the shelf drivers. The advantage of a midrange in a 3-way system, is that it lets the woofer go as low as it needs to go. And makes the job very easy. The E66 overcomes this by positioning a 1.25-inch, silk dome high-frequency driver between two 6.5-inch midrange drivers that cover the same frequency range. The drivers are placed so that their acoustic centers are less than one wavelength apart for any of the frequencies they reproduce. The new ultimate All-In-One Active Full-Range Home Audio solution is here. After 2 years of engineering and development, we are ready to change the status quo with our All-In-One Active Floor-Standing Loudspeaker System. The XtremeMac Tango Bar has been designed to sit neatly just underneath your iMac screen or Cinema Display and is equipped with a 6 speaker configuration consisting of dual dome tweeters midrange.
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Dome midranges tend to be more like tweeters. They often have a much higher resonant frequency which necessitates a higher woofer to midrange crossover point. However, they are usually a smaller diameter, which means they can usually be used successfully with a higher midrange to tweeter crossover point, and remain omnidirectional up to a higher point than the cone midranges.
Beyond that, dome midranges tend to be more scarce than cone midranges, as really, any small woofer can potentially be considered as a midrange - though there are a few midrange specific cones. Also, dome midranges tend to be more expensive.
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That said I'm currently using the Morel MDM55 here and the sound is very good. Their major advantage is a smooth upper midrange that most larger cone mids just can't pull off.
The Morel MDM-55 dome midrange is 44% off at Parts Express through the 8th.
I couldnt resist that price, I picked up 3
Auger, Very nice build!!! Im going to get several NeoCD3.0 tweeters too and see what I can do.
Just need to find out if I can match the TD12S with these. How low does the MDM-55 go?
They could cross to a TD12M fine, but the power response would be so radically different I don't think they would integrate well. I was thinking along somewhat the same lines but using four of them in an omni design crossed to multiple pro woofers. But 10' is about as big as I would be comfortable with crossing at 800-1000hz, and that's with multiple drivers for omni radiation. And 10' pro drivers unfortunately don't go that low so the idea is still just bouncing around my head.
The Fountek ribbon is real nice. Just be sure to cross with a fairly high slope. I would go at least 3000-3500hz @ 4th order. I was 95% happy with using them at 4000hz @ 2nd order but the distortion from running them too low could be noticeable, and once it was I always heard it. Since I was using a Duelund filter I was more or less stuck with the slopes, so in this case I had to use another tweeter (BG planar Neo3) versus just changing the crossover slope.
but the power response would be so radically different I don't think they would integrate well.
Im away this week but I think noticed that when playing around with the TD12S and even my B&C mid range...
At least I noticed that I can throw any amount of power at my TD12S while my mid-range was limited.
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The power response of a speaker is a measure of the total sound power level a speaker creates versus frequency. The total power will give rise to a reverberant sound field once the speaker is placed in a room.
Does that include amount of amp power a driver can handle? or are we talking about the power response @ 1W of any driver?
Of course that is why I posted 'I Think' above because Im not quiet sure still what 'power response' means and I just know after tweaking I can definitely modify my FR just by giving my drivers more power..the TD12s do increase in DB disproportionate to my mids and tweeters.
Quote:Does that include amount of amp power a driver can handle? or are we talking about the power response @ 1W of any driver?
Power response is nothing to do with input power or amps. Its about the distribution and evenness of the polar response.
Quote:
the TD12s do increase in DB disproportionate to my mids and tweeters.
Likely your hearing compression in the mids and tweeters.
Does frequence bandwidth lengths have something to do with the evenness too? I would also that obviously the baffle size has an effect on the polar response, correct?
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Not running the system that hot for compression to happen, what I do see is that FR dBs increasing a lot more in the lower frequency ranges. Of course in my setup I have 800W ready for those TD12S and only 250W for the mid/tweeter.
Anyways, the Moral dome mid-range are now discontinued at parts express so they sent me a refund. I wish I was quicker at that price!!
Not running the system that hot for compression to happen, what I do see is that FR dBs increasing a lot more in the lower frequency ranges. Of course in my setup I have 800W ready for those TD12S and only 250W for the mid/tweeter.
Bass is more power hungry than mids or highs will be simply because there's more energy involved. I wouldn't worry massively about 800w vs. 250w since its 4.8dB difference and considering the efficiency difference between the mids and tweeter vs. the bass plus the baffle step loss then its probably an OK match. Neither the Fountek nor B&C/PHL would be able to mechanically or thermally handle 250w for any significant length of time either.
I've tried a bunch of drivers and loudspeakers in general and I've never heard a combination that didn't scale linearly together. The maths state that once level matched at any given SPL the drivers will scale linearly in SPL but consume differing amounts of volts.
If your not running them to point where compression is a problem then do you got some sort of loudness EQ in place? Most of the home theater amps have these and you may have it engaged.
Does frequence bandwidth lengths have something to do with the evenness too? I would also that obviously the baffle size has an effect on the polar response, correct?
Lots of things have an effect on the power response - crossover, baffle, drivers. Its one of the core design considerations, perhaps even *the* core consideration for some. Whatever priority its given, it makes up a large part of a loudspeakers sound.
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