Hi - sorry I can't answer your question, but I will suggest that you try the High-Efficiency forum over on the audio asylum.
altec model 19 , how to upgrade the speaker ?
I have a couple of model 19 speakers custom built .
They have 416 8b lows and 511b horn with 808 hf driver .
no crossover .
what should I do ?
my crossover options ,
1.have a friend build a crossover based on specs on the internet.
2. try and find them on ebay .
3. buy iconic 600 dollar xo .
--------------------------------
do I change the 511b to the 811 horn ?
do I change it to any other horn ?
what driver should I use on the horn ?
They have 416 8b lows and 511b horn with 808 hf driver .
no crossover .
what should I do ?
my crossover options ,
1.have a friend build a crossover based on specs on the internet.
2. try and find them on ebay .
3. buy iconic 600 dollar xo .
--------------------------------
do I change the 511b to the 811 horn ?
do I change it to any other horn ?
what driver should I use on the horn ?