I've tried different centers with my W8-2145 based Back Loaded Horn L & R speakers, but to no avail.
It certainly occurred to me, I might have better success putting the same driver in a center/horizontal cabinet. It wouldn't need to go too low, but perhaps I could load the back-wave and get some useful low frequencies, it'll be ok. Most important is the identical sonic signature 200Hz and up, I think.
Thoughts, and cabinet suggestions?
Thanks.
Daniel
Singapore
It certainly occurred to me, I might have better success putting the same driver in a center/horizontal cabinet. It wouldn't need to go too low, but perhaps I could load the back-wave and get some useful low frequencies, it'll be ok. Most important is the identical sonic signature 200Hz and up, I think.
Thoughts, and cabinet suggestions?
Thanks.
Daniel
Singapore
W8-2145 seems well suited for a sealed box, with its Qts of 0.45 and Fs of 40Hz. According to the info at Parts Express, in a 1.1 cubic feet sealed box, F3 is 71Hz, which is quite usable for a center channel.
Kurt
Kurt
If you measure what is coming out of the horn, i doubt a sealed w8 would match it.
Then again, it is about as close as you can get, using the same driver.
Can you live with its dispersion as a center ?
Then again, it is about as close as you can get, using the same driver.
Can you live with its dispersion as a center ?
Using the same driver as a centre in HT is pretty important (at least a driver with the same voicing).
40 litres or so is maxFlat sealed, but 30 litre, even 25 litres would likely work. Centre only needs to cover voice primarily. Make it small, F6 below 50 Hz, plenty of extention for the application.
dave
40 litres or so is maxFlat sealed, but 30 litre, even 25 litres would likely work. Centre only needs to cover voice primarily. Make it small, F6 below 50 Hz, plenty of extention for the application.
dave
What's the 'small' speaker setting nowadays? Still 80 or 120 Hz? Using your horns full range with no sub?
With a large full range driver your on-axis FR may be very different than off-axis. I’d consider the area I was trying to cover (single seat, 3x seat sofa, 2x 3x seat sofa?), distance from center channel and angles involved, then check if the driver would give me a decent and consistent FR in all listening positions.
While true that a FR tends to beam as the frequency goes up, a shallow cone like the A12p gives much greater HF dispersion than many would imagine. Sometimes as good as a tweeter (the dustcap is acting as a T at HF. A FR also (sans whizzer) has a very uniform decrease in dispersion, as is ideal, and rarely met with a multi-way given different radiator sizes, crossovers, and physically distant radiators.
A smaller (similarily designed) FR will improce HF dispersion but at a sacrifice of being able to move volumes of air. This can be remedies with a WAW, but all of a sudden things get more complicated and more expensive.
dave
2145 ?
1 person wide dispersion at 7', 2 at 12'.
So a couch at 12', I hope 2 aren't sitting at opposite ends...………….
Only way around that is to have a climbing response, then sit off axis to make up for it.
1 person wide dispersion at 7', 2 at 12'.
So a couch at 12', I hope 2 aren't sitting at opposite ends...………….
Only way around that is to have a climbing response, then sit off axis to make up for it.
The big FR drivers of the L and R channels already create a narrow sweet spot even for stereo listening (i.e., sans a center channel), so I think we can assume that the OP is thinking about a home theatre setup for the enjoyment of only one listener.
Is the intersection of three laser beams narrower than the intersection of two laser beams? 🙂
Is the intersection of three laser beams narrower than the intersection of two laser beams? 🙂
How about the W5-2145? Same "family" driver, perhaps same sound character with a little wider dispersion to the listening position, smaller box, easier to place, cheaper by ~$35...
Thanks, everyone, for your thoughts. I did some digging and came up with cabinets designed for Alpair drivers, and thought they might be suitable.
I am still coming up to speed on how to design something suitable for the driver I intend to use, so....
<update> nope, I made a mistake. Those drivers are quite a bit smaller than the 8" TB.
daniel
I am still coming up to speed on how to design something suitable for the driver I intend to use, so....
<update> nope, I made a mistake. Those drivers are quite a bit smaller than the 8" TB.
daniel
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If you have the space, re-folding your BLH design such it's split in half to have one half terminated to the left of the driver and the other to the right side would be the ideal.
Another would be to make a horizontal MTM with the XO point at whatever frequency the horn's acoustic XO is. Woofers would ideally have ~the same CSA [Sd] as at whatever point in the horn it is.
Another would be to make a horizontal MTM with the XO point at whatever frequency the horn's acoustic XO is. Woofers would ideally have ~the same CSA [Sd] as at whatever point in the horn it is.
Aiko is already bifurcated as you suggest he do, here some guys in ON filpped it 90° and used it as a centre:
Here as normally seen:
dave
Here as normally seen:
dave
