The J-box is a device that I’ve often looked at on AliExpress, but I don’t see much or any talk about it really on DIY forums, not English speaking ones anyway. It looked quite interesting to me as an all-in-one measurement system; the poor man’s alternative to...
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J-Box III Review
The J-Box III Review
The J-box is a device that I’ve often looked at on AliExpress, but I don’t see much or any talk about it really on DIY forums, not English speaking ones anyway. It looked quite interesting to me as an all-in-one measurement system; the poor man’s alternative to...Last edited by Reet; 18 May 2025, 13:02 Sunday. -
How To: Measuring impedance and T/S with ARTA/LIMP
With a simple jig, loudspeaker impedance and T/S parameters can be easily measured with LIMP. The same jig may also be used to measure component value for resistors, capacitors, and inductors, as well as measure transfer functions of passive and active filters.
The setup is quite simple, the following diagram is taken from the LIMP manual:
https://artalabs.hr/download/LIMP-user-manual.pdf
Measurement Jig
This instruction is following what is in...Last edited by Reet; 26 May 2024, 09:54 Sunday. -
Your suggestion for a measurement set up
I plan on learning to make accurate measurements and crossover modeling. Would like to get a calibrated mic along with the needed hardware. Plan to use ARTA and VituixCAD, for now.
I have UMIK 1 (from what I read, will not work optimally with ARTA) and a Behringer EMC8000. I don't know where to... -
Please check my box
Hi all,
I need help. I am getting back into building again. But I am not looking for a therapist. At least not yet.
When I looked at my box full of audio measurement stuff I remembered the pia it is to drag cables and amps and pre-amps around. So I decided to come up with... -
ARTA impedance measurement anomalies
I got my new soundcard in today. Time to do some ARTA work!
So, I get everything ready to do an impedance measurement on a RS180 I have and this is what I get:
I'm not thrilled about the little blip at ~65 hz, but that's nothing compared to what happens below...
