Morel MDT33 and Morel Supreme 110

Morel MDT33 and Morel Supreme 110

Frequency response at 0.5m. First the mdt33 with off axis curves, then the 110.

Nonlinear distortion

First, the MDT33, then the 110.

800Hz-I only have test data for the MDT33

1kHz

In the next series, a graph of the MDT at 1.3kHz will be compared with a graph of the 110 at 1.5k.

Sorry about the differences in frequency. I set the toneburst incorrectly and didn't realize it until now.

At 2k

I'm sure I did the mdt33 at 5k, but can't find the data. One of the drawbacks of using loaner tweeters. You can't go back easily and see what you forgot!

Conclusion.

This series of tests was a bit limited, but I think a couple of preliminary conclusions are justified. Overall, the mdt33 goes lower than the 110, and has less overall IM distortion, at least at the frequencies tested. There are holes in the data though. Also, the mdt33 is very smooth on axis with very good off axis curves. It will be interesting to see what DLR gets on his baffle. The other impressive test result of the mdt33 is it's remarkably better second order numbers. In general it seems to be one of the best, if not the best in terms of second order products. The low end excursion of the mdt33 is clearly at the top? maybe the top.

I may actually buy a pair of mdt33's to see if I can duplicate this performance. Matt sent me two drivers, but the other one had a dented dome. I replaced the dome, but something fishy was going on with that unit. I don't present it here because, well, it was obviously defective...

What about the 110? Well, it's a good tweeter, but at least preliminarily, I'd say the old standard, the mdt33 is better. Still, if you're not going to cross low, it's alot of money to spend.  Interestingly, the 110 seems to have an off axis profile a bit better than the typical 1" dome, almost 3/4". It might sound a bit better to some because of this.