+1 If using a helper woofer, the wide range driver's Fs should go no lower than necessary to cover the XO BW, which would theoretically be around 250 Hz for HIFI, so ~75-125 Hz and up an octave for high power apps.
+1 All the pioneer's drivers were voiced as matched systems and hopefully the better manufacturers are carrying on the tradition.
+1 Given my druthers, for HIFI I prefer HE designs with doped accordion surrounds, impregnated cloth spiders.
GM
Not too shabby as diffraction horns go: ALTEC LANSING MANTARAY MR II 564 SPECIFICATIONS Pdf Download.
GM
The dispersion of my kitchen speakers is in the same ballpark. For proper stereo listening one has to be selfish. But for casual background music it still works quite well though.
Even though everything is there, there is maybe a little lack of high-end sparkle sometimes but that could be solved by an additional supertweeter (or maybe an ambient tweeter on the backside).
Regards
Charles
Even though everything is there, there is maybe a little lack of high-end sparkle sometimes but that could be solved by an additional supertweeter (or maybe an ambient tweeter on the backside).
Regards
Charles
The 60x40 dispersion is about the max for 2" exit drivers without resorting to extreme diffraction.
The MRII 564 is considered one of the best (sounding) Mantaray horns. If you search, you'll find plenty of reviews.
I am not familiar with this particular horn, but I own B&C ME60s which is a slightly modified clone of the MRII 564.
If you look at the dispersion graph and polar maps, you'll notice there's no pattern flip all the way down to 500Hz.
This may not be a necessity, but it's still a nice feature.
Such a horn could work nicely in a long room, that's deeper than it's wide.
The MRII 564 is considered one of the best (sounding) Mantaray horns. If you search, you'll find plenty of reviews.
I am not familiar with this particular horn, but I own B&C ME60s which is a slightly modified clone of the MRII 564.
If you look at the dispersion graph and polar maps, you'll notice there's no pattern flip all the way down to 500Hz.
This may not be a necessity, but it's still a nice feature.
Such a horn could work nicely in a long room, that's deeper than it's wide.
Attachments
Last edited:
I'm sure I could think of something to say.. but all I want to know is the 40 degree vertical, is it chosen for a commercial or domestic reason, is it for power or pattern?
Both for power and pattern, I would say.
60x40 is a common dispersion pattern, used for many popular horns like the XT1464.
These horns are designed with commercial applications in mind, which is not to say they can't be used at home.
Charles is one of the many happy XT1464 owners.
60x40 is a common dispersion pattern, used for many popular horns like the XT1464.
These horns are designed with commercial applications in mind, which is not to say they can't be used at home.
Charles is one of the many happy XT1464 owners.
Last edited:
If you compare dimensions of the MRII 564 to those of the ME60, you'll notice the former is nearly 12 cm deeper.
This in order to match the long snout of to the oldskool Altec drivers, which are decendants of the JBL 375 / WE 594A.
This in order to match the long snout of to the oldskool Altec drivers, which are decendants of the JBL 375 / WE 594A.
Attachments
Last edited:
+1 Again, Altec had THX certification in mind, though IIRC only the later EV badged prosound speakers were submitted/approved.
GM
My ME60s with (pancake, 34,7° exit) DE75 drivers:
(I attenuate/EQ these to about 95dB, mounted to much bigger horns. The breakup is better behaved than with many newer 2" drivers and there's no need for tweeters.)
(I attenuate/EQ these to about 95dB, mounted to much bigger horns. The breakup is better behaved than with many newer 2" drivers and there's no need for tweeters.)
Attachments
Last edited:
The birth of THX:
Has anybody that follows this thread ever experienced such a 'Keele style' JBL cinema install? I haven't, at least not consciously.
I am convinced, with the best drivers for the 2360 (some say 2446 with Alu dia), Crown DriveCore amplifiers and Lake or similar DSP, such an install could still sound fantastic.
Last edited:
Someone went overboard with cosmetics...
Asking price was $12.000 a pair.
For that amount you receive used components without any upgrades, but you do get a shiny & new finish.
An externally hosted image should be here but it was not working when we last tested it.
An externally hosted image should be here but it was not working when we last tested it.
Asking price was $12.000 a pair.
For that amount you receive used components without any upgrades, but you do get a shiny & new finish.
Last edited:
For $12G, i'd expect at the minimum, that the cabinets match. One has two pieces of veneer or solid boards composing the sides, the other three.