To Gary dated 01/14/07. The best thing you can do with the AMT-1 is too ditch the woofer and visit your local Car Stereo driver dealer and buy the best 4 ohm Sub bass driver that he stocks ( not neccesarily the most expensive . Cast chassis, not too tight a suspension ( VERY IMPORTANT )and about 89- 92 db per watt efficiency should do the trick. I myself have chosen a 10 in Kevlar type driver with a huge magnet assembly, cast chassis and have also done the capacitors up with all polyprops used and rewire as well. The bass driver preferably will have a lightweight cone ie Polyprop, Carbon fibre or kevlar as it needs to ba able to respond to about 1200 Hz to intergrate with the treble unit. As the crossover and efficency levels and the treble unit is originally a 4 ohn load a car sub driver is actually a great choice - just ignore the horrible paint and bling of the car sub drivers. Stay away from pressed steel chassis as well. Mine are fantastically inproved with the new driver.
ESS speakers "Translinear" Transstatic
These were speakers designed by California based company called ESS, that is, Electro Static Sound before they used the Heil Air Montion transformer. These models were current in 1970-1975. I am curious if any one still owns either of the above models, or has seem them listed on any of them listed in the used audio web sites. They were incredible speakers for their time,and sounded as good as many of so-called elctrostatics of today. They used good driver elements, for example, the KEF B-139 oval driver for the bass response.If anyone has knowledge of either of these above vintage speakers,please leave info on this Web page. Thank you!!