I recently come across a bunch of vintage Morel drivers some NOS in boxes. Fairly standard assortment of MDT32, 33, 55.
Amongst them is a pair of israeli made MDM75's. There is little to no information about these online.
Are they worth anything? Any speaker builds that utilize them?
Amongst them is a pair of israeli made MDM75's. There is little to no information about these online.
Are they worth anything? Any speaker builds that utilize them?
The MDM75 was a Morel-USA product made before the Israel/USA split, if I recall correctly. The Morel-USA name was changed to Renaissance, and it seems the USA drivers were always less noteworthy via spec sheets. The MHT36 was another USA-branded Morel tweeter.
Suffice to say- they are likely 20 years old or more.
Later,
Wolf
Suffice to say- they are likely 20 years old or more.
Later,
Wolf
Are there any straight forward builds I can use these drivers in? A 3-way with a MDT33/32, MDM75 into a Morel woofer?
The sensitivity of them was around 93dB. Like all dome midranges, they have a very short Xmax. Used above 800Hz, they can play quite loud. In college I used them in a 3-way system with two 12" woofers and a 1kW amp per channel. We had complaints from houses 5 miles away! They never blew up.
What driver selection should I use? As above I have the MDT32, MDT33, MDM55, MDM75. I still need woofers.
The 33 are one of my all-time faves, but I'd measure them to see if the ferro-fluid is dried up or not. It was bullet-proof, could xover low, and was flat as a rail in response. Thing is- the 55 and 75 really aren't needed if you use the 33 or even 32 with a solid midbass. The 55/75 are more intended for the smaller 3/4"-1" domes that can't quite go so low like the MDT12.
Later,
Wolf
Later,
Wolf