Re-reading this thread today and remembering how the SMAHL's got started. It was a set of LSI's just like these and I had fixed the bad K-43 and recapped the AA crossovers. Everything else was OK but it just did not sound quite right. I had read about Dave Harris's little MDF tweeters and I thought OK I have a Haas VF4 and design software so I can do this in aluminum and not MDF which I despise. The first one I cut had a conical cavity because I had not learned how to do the Tractrix cavity in my CAD program yet. Stuck an APT50 driver on there and man what a difference. That started the whole evolution of the MAHL's and it all began because I was looking for something I wanted for me. I never expected it to grow the legs it now has. Tip of the hat to Claude who tested things for me in passing.
Of all the La Scalas these one piece are the easiest to make right. I chose the AA crossover because they were by far the most popular ones. The K-43 was already in there. The fiberglass covered and trimmed sidewalls did not have that resonance problem all the other La Scalas I had worked on had. A new tweeter fixed that onerous tweeter problem. I had my original set sitting on top of some KP- 480's. One day I went to an audio store in Nashville asking about DAC's which I though I might need. The salesman must have figured I was made of money as he demanded I sit on the throne in front of some weird Buck Rodgers looking diamond diaphragm B&W speakers with a 24g price tag. So I humored him and sat on the throne. Listening to Buck Rodgers space ship I thought if this dude could only hear that set of LSI's on those 480's he would ---- a brick. I had $1500 in that whole setup and those days are gone forever.
Of all the La Scalas these one piece are the easiest to make right. I chose the AA crossover because they were by far the most popular ones. The K-43 was already in there. The fiberglass covered and trimmed sidewalls did not have that resonance problem all the other La Scalas I had worked on had. A new tweeter fixed that onerous tweeter problem. I had my original set sitting on top of some KP- 480's. One day I went to an audio store in Nashville asking about DAC's which I though I might need. The salesman must have figured I was made of money as he demanded I sit on the throne in front of some weird Buck Rodgers looking diamond diaphragm B&W speakers with a 24g price tag. So I humored him and sat on the throne. Listening to Buck Rodgers space ship I thought if this dude could only hear that set of LSI's on those 480's he would ---- a brick. I had $1500 in that whole setup and those days are gone forever.
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