Recent content by tktran303

Without further ado, let me introduce the keynote speaker: From concept to design to engineering to prototyping to building, the entire execution is by our own @5th element Please note I had nothing to do with it. I am merely here to P(l)ay it forward! Designed for use with cardioid or...

U GaN Touch This The Revolution that is, and isn’t GaN “New materials always get audiophiles’ hearts racing, much more so than strides in engineering fundamentals. Where would the loudspeaker market be without the perennial parade of new cone materials? They’d be forced to make fundamental...

It’s never quite clear to me how the NFS calculates the harmonic distortion. I’m sure it uses an (exponential) sine sweep. But does it in 3 seconds, 12 seconds or longer? And is the mic on the reference axis at at 1m? I once asked Erin and it’s wasn’t clear how it was done. Perhaps it’s during...

When listening doesn't correlate well with distortion measurements, I connected the dots when I also noticed that harmonic distortion measurements from various sources are different eg. Voice Coil Test Bench vs others 2. And this is why it's an Estimated or Predicted in-room-response...

That's Treble Technologies, or other 3D simulators

I decline from further comment re: full space, half space or quarter space. But one doesn't have to take my word for it. Just look at the data. Exhibit A: 88dB is the red line. 20Hz is 72-75dB depending on which line you take (16-13dB down) Exhibit B: at 1m- average response is 88dB between...

The thing about the NFS is that it's so automated and excellent, sometimes we forget to step back and think about what is going on. In this case BOTH Davey and Amirm AND Grimm Audio is correct. Allow me to be translator here. The NFS gives an anechoic measurement without the anechoic chamber...

Nein. Both Amir and Erin use the same Microtech Gefell MK225 pre-polarised mic capsule. The NFS doesn't come with a microphone, you have to supply your own, or buy one they recommend. Now the sales engineers at Klippel will suggest an industry standard 3Hz to 20KHz 50mV/Pa because it's a) low...

One way to further improve the performance of the MF of the UniQ is to put in a full thick (enough) copper sleeve. I've discussed this in passing with Jack. Or go active and current drive. Or MFC with adaptive filtering. There's already an algorithm that is capable of performing adaptation...

We probably have to ask Mr FSAF to come out and play with us. The main thing is we all need to collaborate and work together. You need the people who have been doing transducers, amplifiers, cabinet, control theory, industrial design, who know math and physics better than the rest of us, but...

Steve, Thanks for opening this discussion. An industry veteran once wrote to me "The price race is another problem. If I look at, say, loudspeakers, companies like K_ put out speakers that are 10 times as expensive as a B_ and about 1/10th as well designed. The relativism that rules in a...

It's a 3-way speaker with a 8"/4"/1" with XO points 350Hz and 3000Hz, so the directivity transition will be smooth, and the amplitude modulation distortion will be low. It'll be similar to something like the Wharfedale Lintons, as long as nobody screwed up the crossover design. Have you...

Thank you Floyd, History and wisdom is actually quite important, as is science. The part of the problem challenge today that's it's arguably even harder for people to understand. A quarter of a decade ago there was a very good speaker, the Infinity Interlude IL60. You run your speaker cables...

Ah the good ol' days. I’m a fan of Infinity speakers. A BIG fan. In my mind, during their heyday Infinity produced some of the finest speakers ever made. If the only Infinities you’ve heard are the mass-market junk at Circuit City, then you haven’t heard good Infinities. Here’s my...

Some publications do. Eg. Wirecutter.com ; led by the fearless Brent Butterworth “we conceal the contenders behind thin, black fabric that has a negligible effect on sound quality. Whenever possible, we use a switching device that allows the panelist to listen to each speaker for as long as...