Rev 2 of my DIY Stereo Cutterhead

[Ciuens]

I bought a pair of these transducers for testing. I am now printing a second version of the cutting head.
When mounted I'll post the results.

[SingleCut]

.. any progress to share?

[cohearent]

Hi Todd,

I would suggest keeping the DCR of the drive coils 4.7 ohms. There is a network in the SAL which makes the impedance come out a pretty flat 9 ohms. If you start with 8 ohms DCR it will rise quite a bit from there and you will be throwing away power. Remember a nominal 8 ohm speaker usually has a DCR of 6 ohms or less
Yes, you will probably find the primary resonance is quite a bit different, but mass loading can probably fix that.

Best,

Kev

[opcode66]

Kevin, are you posting to me? If so,
I can explain why 8 is working well for me. If you were posting to me here, email me. I'll explain the details.

FYI, Westrex 3D coils are 10 Ohms DC Resistance.

[Jolyman]

Hello !

I've donne one of these heads.

here are the results :


https://www.youtube.com/watch?v=UFAX4KmhCEQ&spfreload=10


Thank you guys a lot for the tips.
It was really fun to make tis experience !


Cheers !!!

[dimi751]

Great result well done sounds good to me