absolutely one of the bests 12" with "fast" sounding what I've ever heard, now adays drivers goes more lower, but my opinion is most of those drivers accuracy sucks.
d-54 crossover
Does anybody out there have any schematics for passive crossovers for linking Dynaudio d54 mids and d21 tweets (both horn loaded).
I have some of these leftover and looking to use them in a HT centre channel system.
(with VIFA bass p17)
The d54 & d21 were originally used with 30w54's (now in 200L reflex subs)
Also was somebody looking fore graphs for these drivers, if so I think I have some old info that can be scanned.
Thanks in advance
George
Does anybody out there have any schematics for passive crossovers for linking Dynaudio d54 mids and d21 tweets (both horn loaded).
I have some of these leftover and looking to use them in a HT centre channel system.
(with VIFA bass p17)
The d54 & d21 were originally used with 30w54's (now in 200L reflex subs)
Also was somebody looking fore graphs for these drivers, if so I think I have some old info that can be scanned.
Thanks in advance
George
Hmm, 500 to 3000hz; no wonder you`re killing drivers Jere! You really should add a low-mid driver to avoid killing those big tweeters...
I`m using D-52 from above 2khz(Seas G-17REX/P with two magnets "under"..) and up to 6khz where they give up without any filter, then adding a Scanspeak 9700 with just a 2.2uf tinnfoil as a filter.
The D-52 plays through 8.8uf(4x2.2)tinnfoil and I`m using a kind of "imp. corr." to tune it down a little.
This combination plays like "invisible" and are able to handle extreme power.
I`m using D-52 from above 2khz(Seas G-17REX/P with two magnets "under"..) and up to 6khz where they give up without any filter, then adding a Scanspeak 9700 with just a 2.2uf tinnfoil as a filter.
The D-52 plays through 8.8uf(4x2.2)tinnfoil and I`m using a kind of "imp. corr." to tune it down a little.
This combination plays like "invisible" and are able to handle extreme power.
That's because I really dont have specs for Coral bass, an forexample d-52 (older) gives range 500-6000hz well. D-52's resonance frequence is 280hz.
3000hz is because of Frequency resp curve, original D-54's curve is not so straight, and crossover is before peak.
DT115 situation is most difficult 3000-20000hz! its fs is 1056hz so it can make it. now I have to repair only tweeter's curve,
whole speakers curve 35hz - 20000 hz +-2db
35-500hz -2db to +1db(150hz), 0db point 50hz
500 - 12000hz less than +1 db
12-20K +1 to +2db (+2appx 17K)
I'm using huge powers hardly never, why I killed D-54 was drunken accident with my old small amp. Then I lived in apartment building's 6th floor, and I had party with my room mate, we were listenning to music long time untill one man came from same building and beat the door, I opened the door and He was quite friendly, he just said "I can't sleap, could you please turn volume little bit down. BTW I live in 2 nd floor"
In the morning I realize what we've really done, one D-54 was fell silent, forever
.
3000hz is because of Frequency resp curve, original D-54's curve is not so straight, and crossover is before peak.
DT115 situation is most difficult 3000-20000hz! its fs is 1056hz so it can make it. now I have to repair only tweeter's curve,
whole speakers curve 35hz - 20000 hz +-2db
35-500hz -2db to +1db(150hz), 0db point 50hz
500 - 12000hz less than +1 db
12-20K +1 to +2db (+2appx 17K)
I'm using huge powers hardly never, why I killed D-54 was drunken accident with my old small amp. Then I lived in apartment building's 6th floor, and I had party with my room mate, we were listenning to music long time untill one man came from same building and beat the door, I opened the door and He was quite friendly, he just said "I can't sleap, could you please turn volume little bit down. BTW I live in 2 nd floor"
In the morning I realize what we've really done, one D-54 was fell silent, forever
.
......in either case.... it`s the first time
coral 12l - 25b , 5m-12 , 25 - 21a
Hi i was at a garage sale the other day and came across 2 x 4" high speakers, tape player, record player, a record selector, and a 20band eq, i went up to have a lok and noticed they had 20 bucks the lot so i bought it not caring if none of it worked at all, after getting it home i looked and all of it every thing work and i was happy.
Then the fun started, i opened the back of the speakers boxes which where fairly poorly made but i didint care but i found with i though was great i each speakers there was
Coral 12l - 25b's (60w), Coral 5m - 12 (40w) and 2 x Coral 2h - 21a (20w each) and though what a great deal becuase they all work perfectly have really good bass and are very wquick and responsive ( using my own amp i already owned ) but i was wondering if anyone had more information even though it has alot on the back of each speakers i was wondering if any one had pictures of the speakers listed above and any specs of them if u could send these it would be very greatly apprechiated.
Hi i was at a garage sale the other day and came across 2 x 4" high speakers, tape player, record player, a record selector, and a 20band eq, i went up to have a lok and noticed they had 20 bucks the lot so i bought it not caring if none of it worked at all, after getting it home i looked and all of it every thing work and i was happy.
Then the fun started, i opened the back of the speakers boxes which where fairly poorly made but i didint care but i found with i though was great i each speakers there was
Coral 12l - 25b's (60w), Coral 5m - 12 (40w) and 2 x Coral 2h - 21a (20w each) and though what a great deal becuase they all work perfectly have really good bass and are very wquick and responsive ( using my own amp i already owned ) but i was wondering if anyone had more information even though it has alot on the back of each speakers i was wondering if any one had pictures of the speakers listed above and any specs of them if u could send these it would be very greatly apprechiated.
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