Goldwood 1016 Piezo response

[bubblersound]

Purple (5) 1016 in straight array
Green (5) piezos on wooden horn

[bgavin]

I can't tell which is which.

[guitarkeys.com]

If my eye are correct, I believe the straight array has the bump at 8.5k.

Jamie

[WB]

If my eye are correct, I believe the straight array has the bump at 8.5k.

Jamie

My eye tells me the same.

[bgavin]

I can't tell the colors at all.
Mic calibration file is not used.
Unknown input voltage and measurement distance.
OP, please add some more info.

[bubblersound]

the straight array has the bump at 8.5k.

Jamie

correct

[Bill Fitzmaurice]

That response above 10kHz is way low, so something is off with your measurement protocols.

[bubblersound]

It's a Shure vocal mic (sm or pg 58), not calibrated. I measured a Eminence Delta Pro 8a in a small enclosure and it looks much like Eminence posted, all the way up to 5k. Although, the mic response posted by Shure is far from flat, especially above 2khz.
Anyway, I did the test because I was skeptical of the tweeters actually playing down to 2khz. They do! The wooden horn is to try to get the elements closer. They are 1 7/8" center-to-center and seem to couple better.
By ear, I feel the homemade horn sounds better and a little less harsh with some eq.

[Sydney]

It's a Shure vocal mic (sm or pg 58), not calibrated.

Incorrect choice of mic for measurement - far from flat - it has a presence peak


Syd