Morel Ultra MKII 4" Coax.

[Tazio]

Good day all.
Trying this way because the manufacturer doesn't provide such data, I even tried emailing their support service but they didn't even answer; searched the web with no results ...
So, does anyone have the measured T&S data for the Morel Ultra MKII 4" Coax and possibly willing to share?

 

[voodooless]

Nothing to be found... Since it's a car audio driver, I would guess a high Qts, moderate VAS. What do you need it for?

 

[Tazio]

Nothing to be found... Since it's a car audio driver, I would guess a high Qts, moderate VAS. What do you need it for?

I've got an unused pair of them. I'd like to use them in a reflex box to listen music while in my little work room. I'm a beginner DIYer and wold like to practice in this project before engaging in more complex one.

 

[voodooless]

Probably these drivers will not do very well in a ported enclosure. Just keep it a closed box. You’ll need a sub anyway to get any meaningful bass.

 

[NotInYourHead]

You can DIY a simple jig to make impedance measurements and infer T/S parameters that way, provided you have a soundcard.
Or like Voodooless said, make a closed (sealed) speaker box with some internal stuffing, size isn't too important (bigger is better for additional low-end).
What's more important is the crossover for the tweeter and woofer. Car speakers tend to come as a set with crossovers included.