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BMS Drivers and Comps
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vibez View Drop Down
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Joined: 21 January 2010
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Points: 316 		Post Options Post Options   Thanks (0) Thanks(0)   Quote vibez Quote  Post ReplyReply Direct Link To This Post Posted: 14 June 2010 at 9:09am
@ tekasis
 
crossed at 1.3k as advised by tony wilkes.
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Tekasis View Drop Down
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Thumbs Up gents!
 
Looking at the specs of the 4538 & 4544,
 
 
 
the 4538 shows a higher crossover point of 1.9kHz & a higher frequency response compared to the 4544's crossover of 1.3kHz & not as high freq response!
 
Although the 4538's is not as powerful, does this mean it should sound a bit finer/sharper than the 4544's ?
 
Has anyone compared these 2?
 
Cheers.
 
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airbell View Drop Down
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Points: 287 		Post Options Post Options   Thanks (0) Thanks(0)   Quote airbell Quote  Post ReplyReply Direct Link To This Post Posted: 16 June 2010 at 3:47pm
I have Bms 4590 with 2236 horn and rcfl12p110k and im very satisfied.
dont know if other 12inch drivers sound better, but output is amazing, and the bms horn
very clear and loud.crossover is at 800hz and 6,3khz 48db/oct.

cheers
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Sequence Empire:::.. View Drop Down
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Joined: 13 January 2009
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Points: 84 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Sequence Empire:::.. Quote  Post ReplyReply Direct Link To This Post Posted: 29 July 2010 at 2:19am
Originally posted by Tony Wilkes Tony Wilkes wrote:

Originally posted by smithers smithers wrote:

so whats the difference between the 4544 and the 4550 other than x over point?

i have the 4544's on some new celestion horns recommended by tony, but i've not fired them up to play around with x over points yet.


Just the X-over point. The 4550's needs a greater Xmax to allow use at a lower cut-off so gets a larger magnet assembly to keep the sensitivity up (more voice coil out of the gap).

On the MT's I would use 4550's and cross them as high as possible, around 1K would be perfect.

Tony

Is there a 1" 60x40 horn that is prefered for the 4550 comp?
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levyte357 View Drop Down
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Points: 11743 		Post Options Post Options   Thanks (0) Thanks(0)   Quote levyte357 Quote  Post ReplyReply Direct Link To This Post Posted: 26 August 2010 at 6:52pm
Originally posted by Sequence Empire:::.. Sequence Empire:::.. wrote:


Is there a 1" 60x40 horn that is prefered for the 4550 comp?


+1
"Who am I? I'm the guy who does his job.. You must be the other guy".
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HighLift View Drop Down
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My MT121:  1.4" bms 4554 on an 18sound xt1464 horn - xover 1.3k with - pd123er 
Sounds great up to 16k but lacking a bit above. may need to play around with the eq a bit.

any suggestions from other users of this combo would be much appreciated.


Edited by HighLift - 26 August 2010 at 8:31pm
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Tony Wilkes View Drop Down
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Points: 4835 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Tony Wilkes Quote  Post ReplyReply Direct Link To This Post Posted: 27 August 2010 at 10:39am
To be honest the 4554 is a bit of a runt. Compare its FR with the 1"4550. Unless anyone already has the horns I would always recommend the 4550.

@ Highlift you just need to EQ them to give you the tizz. Smile

Tony
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levyte357 View Drop Down
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Points: 11743 		Post Options Post Options   Thanks (0) Thanks(0)   Quote levyte357 Quote  Post ReplyReply Direct Link To This Post Posted: 27 August 2010 at 12:23pm
Originally posted by Tony Wilkes Tony Wilkes wrote:

To be honest the 4554 is a bit of a runt. Compare its FR with the 1"4550. Unless anyone already has the horns I would always recommend the 4550.

@ Highlift you just need to EQ them to give you the tizz. Smile

Tony



@Tony, will H1-9040 allow 4538/4554/4550 to give 13K+ sparkle without much eq?

If Xover is >=8K ?
"Who am I? I'm the guy who does his job.. You must be the other guy".
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Tony Wilkes View Drop Down
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Points: 4835 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Tony Wilkes Quote  Post ReplyReply Direct Link To This Post Posted: 27 August 2010 at 12:35pm
Ray,

Unless you intend to use them later on for other projects 4544/4550 totally wasted. Use either 4538 or 4524 as I pm'ed you. If you mainly want the HF and are happy crossing <5K then no need to spend more than what the 4524 costs.

The 4550 would be perfectly OK on its own in an MT212 if crossed at 1K - 48db/oct, would need EQ at HF to add sparkle but that's all.

Tony
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