Anyone Familar With ESS Speakers?


I was thinking about buying a used pair of ESS HEIL AMT 1B
Speakers (1970'S). Is Anyone Familar With These Speakers?
Do They Offer Audiophile Sound Quality? Due to the age of
these Speakers, will anything nedd to be replaced or upgraded? THANKS.........Rick
128x128lpsforever
throw those speakers in the trash woofers are rotten high energy tweeter sucks cloth top falls off speaker easily.
Yo Lpsforever, the AMT 1B is a little better than the original AMT 1, but they were not great speakers. A friend of mine had a pair back in the 70's. The tweets were too good for the transistor junk that was available at the time. They would drive you out of the room (unless you had severe high freq. hearing loss) when connected to any of the mid-fi amps/receivers of the 70's. Yeah the woofers were flimsy and his cat used to use the grill cloth as a scratching post. A pair in really good shape might be worth a couple hundred today, but you'll need a very good amp to get decent sound out of the AMT (Air Motion Transformer) tweeters. They are similar to a ribbon, but folded like an accordian. If you buy them, assuming the drivers are in perfect condition, you will probably want to update the crossovers...especially the capacitors.
Tried out a swiss 90's version of these. The AMT tweeter and the woofer just didn't like each other and the Lord knows I tried my best: tubes, ss, stereo amps, monos... and even when the sound spectrum was somewhat balanced, the woofer didn't keep up with the tweeter.

The AMT sounds good on its own though.