Vintage Speakers Question

[golddigger142]

I am new to this forum and have a question. I was given a set of custom-made speakers a while back and am looking to sell them, but before I do so I want to make sure I know the quality and value. There are two cases, each is a pentagon-shaped design:

Two frontal sides each have three 5" speakers
The rear side has one 5" speaker
The other two sides each include one 5" speaker

Each of the two pentagon casings includes a total of 9 speakers. The speakers were manufactured by Monarch Electronics International in North Hollywood, CA. The model is SP-50X. Anyone heard of this maker or know anything about it?

[rbinck]

Used speakers do not bring a lot of money unless they are some well known vintage speakers. I have never heard of the driver manufacturer.

[amxman]

I recognize the speakers, they are identical to the drivers that are in my Dathar Acoustic speakers. Monarch's were also known as Monacor and still are sold in Europe as Monacor SP-50X, they still retain the basic style as the older units. It's interesting that there are the six driver's in your speakers like the Dathars. I've attached a pic of my speakers, you can see how unusual they are. If you still have the speakers I would be interested as 2 of my drivers need replacing.