I noticed the new LW5004 measurements. Couple of observations. The directivity looks very wide out to 3kHz. Is it that big dustcap making for a wider directivity at the upper frequency range? Also, I'm thinking that the 2.83V annotation in this graph is incorrect. I doubt it's hitting 90dB at 1kHz at 2.83v.
@rstillin said:
I noticed the new LW5004 measurements. Couple of observations. The directivity looks very wide out to 3kHz. Is it that big dustcap making for a wider directivity at the upper frequency range? Also, I'm thinking that the 2.83V annotation in this graph is incorrect. I doubt it's hitting 90dB at 1kHz at 2.83v.
The FR will be the SPL at 1 m at 2.83 V. Distortion will be louder because the microphone is closer, so the distortion measurement is at a half meter
There was a lot in those drivers to me that pointed to TB. The cone structure with the bumped reinforcement, the dual or M surround, and the motor looking like that of the other Neo motors they have offered.
The frame is resin, right? They also do a lot of that too.
Comments
Audison AP2mv
https://www.jfcomponents.com/
Those little fellers are currently $250/pr on Amazon. Damn.
Distortion levels are pretty amazing too.
That impedance trace barely hits 2x Re at 20Khz. There's got to be a copper demodulation device somewhere in that neo motor.
wonder what's causing that little shelf around 2.KHz; thought in car audio DSP easy to filter out...
Hertz MP70.3
https://www.jfcomponents.com/
I noticed the new LW5004 measurements. Couple of observations. The directivity looks very wide out to 3kHz. Is it that big dustcap making for a wider directivity at the upper frequency range? Also, I'm thinking that the 2.83V annotation in this graph is incorrect. I doubt it's hitting 90dB at 1kHz at 2.83v.
The FR will be the SPL at 1 m at 2.83 V. Distortion will be louder because the microphone is closer, so the distortion measurement is at a half meter
https://www.jfcomponents.com/
Dayton PC83-8
https://www.jfcomponents.com/
I was looking at the 105 to replace some rotten speakers, this is promising.
AliExpress GHX-4A. Aluminum
https://www.jfcomponents.com/
Alibaba 2013 GHX-4P. Paper
https://www.jfcomponents.com/
On the chopping block for the snowy weekend.
https://www.jfcomponents.com/
What's the coaxial? It looks like an Alpine S series.
Yep
https://www.jfcomponents.com/
TB long throw buyout?
InDIYana Event Website
https://www.jfcomponents.com/
There was a lot in those drivers to me that pointed to TB. The cone structure with the bumped reinforcement, the dual or M surround, and the motor looking like that of the other Neo motors they have offered.
The frame is resin, right? They also do a lot of that too.
InDIYana Event Website
Rival. R223-CFC-08VA
https://www.jfcomponents.com/
Buyout 4x6 from PE.
https://www.jfcomponents.com/
^ That is a very interesting driver based upon its FR/Distortion graphs - not sure what I would use them for but they make me wonder . . .
Nicely done
I have a 4 pack of those 4x6 drivers. Been thinking about "hidding" them down firing under a full range to take up some of the low end slack.
Dang, 45Hz Fs on a 4x6!😎
To bad the sensitivity is low on the 4x6
https://www.jfcomponents.com/
The iron law strikes again. Technically it's not in an enclosure, but you get my point.
It was one of those drivers where I had to double check the voltage because it didn’t sound loud enough.
https://www.jfcomponents.com/
Brad, did you throw the purifi on the big board? interested in seeing the details of it.
Maybe later sometime later. I’m doing full measurements with the cabinets now.
https://www.jfcomponents.com/
MCM 55-5660
https://www.jfcomponents.com/
Copper Nip-Tweeter
https://www.jfcomponents.com/