Tried a different browser. It did show up there.
Really bad below the mass corner (300 Hz or so). And even the extention is not as good as the small reflex.
dave
Really bad below the mass corner (300 Hz or so). And even the extention is not as good as the small reflex.
dave
I used this driver in a horn of about 30 liters volume, tuned to ~60Hz. I added a DSP high pass filter at 55hz to minimize excursion. (This helps a great deal.) They played pretty loud, and if you said “choose a single driver full range system to take to a desert island” I could be pretty happy with it.
I’ve attached the crude drawings I gave to my carpenter.
I’ve attached the crude drawings I gave to my carpenter.
Attachments
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I did a triple chamber reflex for these back in 2007, and Curt Campbell assisted with the contouring of the FR at the time. I called them "3CR-Ti", and was quite impressed as long as I was on axis. Move a bit and the top end rolled off. The cone rings like a bell around 10kHz, and MUST be suppressed. The interestingly different baffle step Curt applied worked very well, and the bass alignment allowed very good bass response while keeping the driver well controlled. I don't know if it's still accessible on the net, but several others built it with good things to say afterwards.
Jed Kunz did one called F4 or F44, something like that, and I heard the R4 version used with a ribbon. It sounded great....
Jed Kunz did one called F4 or F44, something like that, and I heard the R4 version used with a ribbon. It sounded great....
I have checked the calculation / dimensions.
This TL is designed for Low Tuning and not Classic tuning.
Nice online calculation tool!
Edit: I uses another cabinet width then the original design….
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The first is a joke, and if the inclusion of that is a indicate low rtunign likely is as well. Classic Design is a design methodolgy not an alignment. The end alignment of a classic TL are all over the place.
Tuning lower would make things worse most likely.
dave
Tuning lower would make things worse most likely.
dave
In all simplicity it is a 4 " speaker
And resonance is 70 Hz
So that is what it does
More like 130 Hz in a box.
Compliance doesn't care for much more than 3 or 5 liters.
Anything larger is = distortion.
Crossover frequency is same old 200 Hz or up.
Dont know what woofer is being used
so can do BR for that one.
.5 Qtc is pretty much 5 liters.
so vented is over at 3 liters
tune it at Fs 70 Hz
or unload it faster into distortion, and make the graph pretty
and flat by high tuning like most 85 Hz
all it does. not a woofer
sealed 3 to 5 liters crossover 200 Hz
And resonance is 70 Hz
So that is what it does
More like 130 Hz in a box.
Compliance doesn't care for much more than 3 or 5 liters.
Anything larger is = distortion.
Crossover frequency is same old 200 Hz or up.
Dont know what woofer is being used
so can do BR for that one.
.5 Qtc is pretty much 5 liters.
so vented is over at 3 liters
tune it at Fs 70 Hz
or unload it faster into distortion, and make the graph pretty
and flat by high tuning like most 85 Hz
all it does. not a woofer
sealed 3 to 5 liters crossover 200 Hz
works alright in a TABAQ with a small adjustment to the port
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Curve looks like a copy according my last post, in BR cabinet, after you 🙂 .
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Well, not exactly.
Your F3 is at 70Hz, mine at 50Hz.
And the MLTL will have the typical double hump in impedance.
I just plugged it quickly into my template, I might have forgotten to lower the output back to 1W.