ESS amt 1a M

[robstaples]

As original owner of first amt 1a 's ( around 1978) and then sold and purchased the more movable amt1aM (monitor). ( I didn't have to pull the 1a's grill cloth off to move them to power the disco parties.) I have the current project of rebuilding the crossovers. In reading your forum, I had no idea there were so many models of the ESS speakers.
The amt1aM is a two way with a passive radiator, both 12 inch and the original air motion on top. My crossover control and input is below.

I am asking if others have rebuilt this particular model and can make suggestions.

Additionally , I have original literature. I presume that replication is not a problem , posting for others with interest.

By 1987, I added two more from a craigslist , totally 4 monitors.
I've scanned a few document covers.

Thanks in advance.

 

[swechsler]

By 1987, I added two more from a craigslist

Uh, what? Craigslist didn't start until 1995. Did you mean 1997?

 

[robstaples]

I bought them used for $300 a piece. Tested the voice coils and they passed. Cones looked good. My memo with their serial number was written in 1987. Not sure how I found his ad. Maybe news paper!

 

[toddalin]

Uh, what? Craigslist didn't start until 1995. Did you mean 1997?

But the Recycler was.