Based on some of the raving feedback about EV DH1A compression drivers, I've got one to try.
I'm intending to use it on a clone of the FaitalPRO LTH142 horn. The horn has the standard 4 inch/102mm bolt spacing.
With the 2" to 1.4" throat adapter that comes with the DH1A removed, it also has 4 bolts... spaced at around 2.46"/62.5mm.
Was this ever a standard size? I'm thinking about 3D printing an adapter but my confidence that I can build a part out of PLA that will hold up the 25 pound DH1A is limited. What have other people done to fit these compression drivers to 1.4" horns with standard bolt patterns?
I'm intending to use it on a clone of the FaitalPRO LTH142 horn. The horn has the standard 4 inch/102mm bolt spacing.
With the 2" to 1.4" throat adapter that comes with the DH1A removed, it also has 4 bolts... spaced at around 2.46"/62.5mm.
Was this ever a standard size? I'm thinking about 3D printing an adapter but my confidence that I can build a part out of PLA that will hold up the 25 pound DH1A is limited. What have other people done to fit these compression drivers to 1.4" horns with standard bolt patterns?
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Huge!
Whats the advantage of removing the adaptor?*
*I think I get it now the driver is originally a 2" exit?
Whats the advantage of removing the adaptor?*
*I think I get it now the driver is originally a 2" exit?
You seem to be a very skilled craftsman. I therefore wonder if it wouldn't be better sound-wise to shorten the LTH142 from behind and build an adaptor - such that the driver would be mounted where the LTHs Diameter is 2" wide.
Regards
Charles
Regards
Charles
@kipman725 correct, the snout functions as a 1.4" to 2" adapter.
@phase_accurate that's very nice of you to say.
Chopping the horn throat off to fit 2" would have some advantages and disadvantages. It would save some trouble in terms of keeping the DH1A in its original form. However it would also be difficult to get a good mechanical fit to the curved exterior of the horn with its changing circular to oval cross section.
My original reason to prefer a 1.4" horn was that it would keep pattern control to a higher frequency, but saying that now, I realize that it probably wouldn't have made a huge difference to just use a 2" throat horn anyway. Maybe the ZXPC 2" 11x17 would have been a good choice.
@phase_accurate that's very nice of you to say.
Chopping the horn throat off to fit 2" would have some advantages and disadvantages. It would save some trouble in terms of keeping the DH1A in its original form. However it would also be difficult to get a good mechanical fit to the curved exterior of the horn with its changing circular to oval cross section.
My original reason to prefer a 1.4" horn was that it would keep pattern control to a higher frequency, but saying that now, I realize that it probably wouldn't have made a huge difference to just use a 2" throat horn anyway. Maybe the ZXPC 2" 11x17 would have been a good choice.
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