Recent content by Rhys Edwards

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    New B&C dual 15" design

    It's not the size of the waveguide but the 100L volume of wasted air doing nothing behind it that i'm bringing attention too
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    New B&C dual 15" design

    So not to shoot down this box design too much since i don't have anything better to offer but one thing i dislike is the wasted space in that middle compartment. According to the B&C site the ME464 occupies 35.5L so that leaves very close to 100L of volume inside this box doing absolutely...
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    B&C DCX464 vs DCX 354

    Any chance you could elaborate on this with some general subjective thoughts? On paper they both look reasonably similar other than a different distortion profile which isn't always as clear cut to what people prefer/suits some applications better than others. It seems very few people have...
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    60 Degree DIY Mid Hi - AKA PM60

    Going back to the DCX464 vs DCX354 discussion, Bennett has recently released a video disassembling and showing the difference between them. The main difference is in the diaphragm design with the 354 having a ridge allowing it to act as if it was a larger (than 3") diaphragm while also having...
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    60 Degree DIY Mid Hi - AKA PM60

    The official wording from B&C themselves on the news release say: And in this other thread NEW B&C coaxial MF/HF Bennett also says: I'm pretty tempted to believe it really does perform the same at 650hz; just because it hasn't been possible in the past on a smaller diaphragm doesn't mean it...
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    60 Degree DIY Mid Hi - AKA PM60

    I've also been closely watching the DCX464 vs DCX354 situation, while i will take B&C's word for it that the 354's MF plays a smaller range, the response graph on the website between the two is extremely similar. Output wise the 354 has the same or better sensitivity with a small sacrifice in...
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    60 Degree DIY Mid Hi - AKA PM60

    Roger, actually i was asking for a link to the forum post because i could not remember when that PDF was shared. Anyway i found it, first page of the thread from 2015 making that version of the design over 4 years old now confirming exactly what i was thinking, that you are really entirely...
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    60 Degree DIY Mid Hi - AKA PM60

    Hi Roger, I've been keeping track of this thread for a while and as far as i can tell Fabio is correct that the PM90 design including the dwg cad file is essentially the same as this 60 degree version. Earlier on the thread Peter mentions he cuts the corners off after finishing the build for...