I joined in 2012 but never posted. Now I have more time to work on my hobby. I have DW loudspeakers now since 1977, had those replaced under warranty in 1980. And with some maintenance they lasted until 1999 when I took them apart after several cells had died. I now own a pair of Martin Logan ESL. Since the Dayton-Wright site is no longer functional, I thought I'd post an analysis of how the loudspeaker developed over time and all the engineering decisions Mike told me about. So these posts are on the Martin Logan users forum.
I used have amplification on the cheap by using two bridged Hafler amps. In the mid 80s I designed my own amp for them, which served me well and i still have it running today into conventional speakers today. Back in those days we did not have WiFi so the amp has no protection against that kind of local high power ingress. The caps are all tired now, so its time for a rebuild.
Here is a picture of a dual mono amp with power supply shoehorned into a Hafler DH100 case, but using 6 output devices per channel.
Anyhow I had to post here before I could post an answer to someone that just bought a non functional DW speaker recently.
I used have amplification on the cheap by using two bridged Hafler amps. In the mid 80s I designed my own amp for them, which served me well and i still have it running today into conventional speakers today. Back in those days we did not have WiFi so the amp has no protection against that kind of local high power ingress. The caps are all tired now, so its time for a rebuild.
Here is a picture of a dual mono amp with power supply shoehorned into a Hafler DH100 case, but using 6 output devices per channel.
Anyhow I had to post here before I could post an answer to someone that just bought a non functional DW speaker recently.
