Recent content by Albe Kohler

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    60 Degree DIY Mid Hi - AKA PM60

    I decided to frankenstein an Altec Lansing horn to pretty much the PM90 design, changed it a bit to accommodate the horn better (it'll get some color soon...). It was a pain to attach it and even though it's partially in the way of the sound path of the 12", it doesn't seem to affect it audibly...
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    60 Degree DIY Mid Hi - AKA PM60

    Dear Peter (Morris), re: yoke mount. I really like it and would like to make that happen as well. I'm aware you welded the frame, but the actual attachments as seen in the picture you posted, lower left corner. Did you also make these? If not, do you have any hint for me where I could buy such a...
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    60 Degree DIY Mid Hi - AKA PM60

    'Fiddly' sounds intriguing. You'll be laminating the skins onto the honeycomb with epoxy I assume? I was thinking adding an about 1"wide 16mm thick baltic birch ply strip inside along the sandwich perimeter when you laminate, like a frame. It'll add a bit of weight, but also stability and you...
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    60 Degree DIY Mid Hi - AKA PM60

    That sounds promising! Any idea on how you're going to connect the honeycomb core panels 90deg to each other?
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    60 Degree DIY Mid Hi - AKA PM60

    You should do it and post your results here, it's always interesting to explore new fields. This, if properly executed, could give birth to a whole new generation of loudspeaker design. Using generative design via AI for static engineering in construction is already a thing. I guess Peter is...
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    60 Degree DIY Mid Hi - AKA PM60

    Thanks Peter! Yes I was looking at the ASC48, I like that it has 8 OUTs, which would be perfect for my scope. Have you used it? I'm using DCX464s and I might design a passive crossover later down the line but for now I want full flexibility with tri-amping the PM60s. Maybe I could use another...
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    60 Degree DIY Mid Hi - AKA PM60

    Hi guys, I have a question regarding FIR. I'm just starting to understand it and now I'm stuck between wanting to experiment and not knowing whether my DSP unit selection is optimal for my goal. I want to buy a FIR-capable DSP unit and start playing with it, while not having to buy another one...
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    TDA Users

    Let me heat this thread up a bit :-). Ok so I just ordered a Crown 4-3500HD (it has some FIR on board) for a good price, which I'm going to use to drive just the 2x12" B&Cs in each of four PM60s. I'm currently a bit in regret-mode, but not sure if for a good reason. While I'm just starting to...