Recent content by headshake

The EDT can change with the baffle shape. (i have a post with the same title on diyaudio where I measure each shape. The test baffles were foam.) It should be audible if it is -25db. My listening test confirmed what I saw in measurements. The baffle was a foam square that let me keep the...

My last project used the same tweeter/woofer but now I am rocking the Yamaha mid. The eton mid I used had a group delay that went wonky below 1khz and could not play 2khz. The yammy solves this and lets it play most of the frequencies where hearing is sensitive to group delay. The baffle shape...

Doing some measuring and this is a sweep of the l26roy w/o any filters. The mic is 2-3cm away from the cone.

My scarlett was used. Lots of 2i2 2nd gens floating about. So you can save a little bit if you don't mind used. All of these mics are going to measure a little differently than one another. I'd mostly trust a result but want to use many mics. A local speaker building buddy purchased 3 mics...

Hello, dualazmak! Thanks for popping by my newbie project. Your system looks so amazing and flexible. It inspired me for sure! re:"your latest whole SPL curve (at 0.6 m) is quite similar": That is super cool to read! That yamaha dome is amazing though. If you ever want to trade :p ... A...

I knew I read something: https://www.diyaudio.com/forums/multi-way/374851-diffraction-effect.html

but isn't that closer to how we hear?

Ok.. I have some new data! The textreme woofer measurement comes from hifijim on diyaudio. The data is not adjusted for a mic calibration but still, there is something to see. I made a sound test file that plays a cymbal mixed with 0.5ms silence every other 0,5ms. The textremes played the clip...

Looks like we have an idea of the max price: $730USD for one BlieSMa Be mid dome. I find solen is a little more expensive than some of the EU sellers so it could be a little less elsewhere...

You can see it in the decay: See how it steps down? I think this is what you are hearing. It is the part's decay that is playing in every sound decay. Compare this to a silk tweeter:

The above is a graph of the ear's ability to hear shifts in the GD. It depends on the instrument. Too bad those manufacturer graphs are not so hot at showing what happens at 0.5ms. The scale sucks. It seems like it is ok to ignore decay issues below 500hz because our ears only hear pressure...

Snake man.

I use paper. All the plastic screens add noise or give up the color to my eyes. Get samples and compare. All of the screen companies will ship something. If you need daylight viewing then a darker or reflective screen can help. This is what I use...

Some color for this thread... ja-0801 dome mid VS 5" paper cone + silk dome coax VS 3" hexacone cone mid+ Be dome I took this measurement of the Be yamaha dome mid. The dome was messed up and I could not play it louder than this but we can see what it can do at a low level. Notice it can go...

My sweeps started at 200hz. No pink noise though. Just the REW sweeps and the RTA w/ the recordings. No filters were on the mid until the last graphs I posted. I thought it would be most fair if I made the mid flat between 500 and 3khz. Here is what the JA-0801 looked like measured 7" or so...