Here is the read only archive of the old Full Range Driver Forum 

There's a lot of valuable knowledge and information in there. 

New! Up and running The Karlson Loudspeaker Forum 

Help us explore the elusive old design, is it VooDoo Science or Beyond It's Time?

Prior Karlson Forum The Karlson Forum 

60's & 70's Hi-Fi 60's & 70's Hi-Fi