Go Back   Home > Forums > Blogs > Rob's active 3way with transconductance chipamps build blog

My build blog for my active 3 ways.
Rate this Entry

Measurements Measurements Measurements

Posted 23rd November 2009 at 07:33 PM by relder

Adding yet another variable (current vs. voltage driven) sure makes for a lot more measurements.

I survived figuring out Soundeasy's quirks once again with minimal bursts of cursing.

The following are the 3 driver's frequency response at varying levels of current drive vs. voltage.

For the woofer I'll clearly have to limit myself to more voltage drive given the peak at resonance, but for the mid tweet I can go current drive easily.

I'm not sure where I got the idea that current drive altered phase. The phase for the mid and tweet are identical for current vs. voltage and the woofer is close enough to measurement error.
Attached Thumbnails
Click image for larger version

Name:	Peerless-FR.gif
Views:	658
Size:	26.6 KB
ID:	54   Click image for larger version

Name:	Tangband-FR.gif
Views:	612
Size:	20.6 KB
ID:	55   Click image for larger version

Name:	Fountek-FR.gif
Views:	616
Size:	18.9 KB
ID:	56  
Posted in 3 Way
Views 837 Comments 0
Total Comments 0



New To Site? Need Help?
Copyright 1999-2017 diyAudio