May we talk about it now?
http://harmanprogroup.blogspot.com/2...oduces-m2.html
http://www.jblpro.com/products/recor...h.html#Spatial
It's been introduced officially at NAMM 2013 in Anaheim.
May we talk about it now?
http://harmanprogroup.blogspot.com/2...oduces-m2.html
http://www.jblpro.com/products/recor...h.html#Spatial
It's been introduced officially at NAMM 2013 in Anaheim.
Out.
That D2 isn't a compression driver, its a freakin Piston!
When faced with another JBL find, Good mech986 says , JBL Fan mech986 says
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They're expensive.
A dual ring radiator.
I am kind of surprised more people didn't jump on the offer to get a pair of the D2's. I guess they are waiting for the factory seconds to start showing up on eBay.
Faston connectors... definitely something I don't associate with a two thousand dollar transducer.
I'd like to bolt a 476Mg or 476Be to this and see how good it would sound, but I guess I wouldn't be surprised if this thing ended up being just as unobtainable as the compression drivers.Image Control Waveguide
It could be interesting to see how this driver sounds in the M2 with the Crown DSP versus the S4700.2216Nd Differential DriveŽ Woofer
The only technical measurement we have for now are the multi-axis/power curves (Toole style ).
This this interesting already: the directivity behavior is similar to a S9800, with a large directivity for the compression (the H9800 has a much wider dispersion than its nominal 90°x60° on most of its band), and a rapid gain in directivity at the crossover point (much more pronounced than the 4338 or S9900 for example).
The directivity collapses a bit in the UHF compared to the tweeter-assisted S9800, but the curves are smoother there of course, with no phase issue. All in all the directivity is kept wide higher than the LSR6332.
Too bad the 30°/15° listening window averaged curve is missing for the M2, as I feel it shows some of the directivity issues of the H9800 (*very* wide horizontal directivity in the 3khz-8khz range), and that would have been interesting to see how the M2 waveguide behaves in this regard...
Of course the response is smoother than the S9800 and LSR6332 because it is actively driven by a FIR crossover, so we can imagine the EQ was very precisely done with inverse corrections. But even with a perfectly EQed on-axis response the S9800 would probably not give off-axis/power curves that smooth: the M2 waveguide definitely has something to it in this regard (as do PT waveguides I think).
The M2 extends also lower in frequency than the S9800 (flat down to 40Hz and only -3dB at 30Hz in anechoic conditions?!), also probably thanks to some EQ (mandatory to adapt the loudspeaker to the position and room anyway...)
Waiting for the EDS now
It could be interesting to see the default DSP curve.
I think FIR filtering and EQ is key in this design, so even if a dbx260 preset is published it will probably not give the same result.
The Green Curve is the Listening Window according to the graph legend on the bottom. Would be nice to try out one of the waveguides.
Rob
"I could be arguing in my spare time"
It would be interesting if any have the same info about "old" M9500, just as a comparison in the horizontal dispersion.
For M2 it see,s to me that in its horn a kind of 'detraction teeth" are implemented in order to widen horizontal dispersion, over 12kHz +/- 15 deg can be expected (-6dB), almost the same 'problems' as BMS4590/92P in UHF region.
Seems to me that the driver itself is more 'potent' then today horns applied.
Regards
Ivica
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