BMS Drivers and Comps
Printed From: Speakerplans.com
Category: Plans
Forum Name: MT122
Forum Description: Discussion / Questions about the MT122
URL: https://forum.speakerplans.com/forum_posts.asp?TID=38638
Printed Date: 26 March 2026 at 10:04pm
Software Version: Web Wiz Forums 12.08 - https://www.webwizforums.com
Topic: BMS Drivers and Comps
Posted By: vibez
Subject: BMS Drivers and Comps
Date Posted: 29 April 2010 at 11:07pm
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Has anyone else tried BMS drivers and comps in MT cabs???
I loaded one of my MT122 cabs today with bms 12s310 and 4544 compression driver and the results were amazing. I was very impressed with the quality of the sound produced.
If anyone is planning to build these cabs or unhappy with their current drivers you should definately check these out.
Thanks again to Tony Wilkes for recomending fantastic drivers.
 Regards, Steve.
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Replies:
Posted By: MarjanM
Date Posted: 30 April 2010 at 11:12am
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Can 4544 be crossed low enough? I am just curious.
------------- Marjan Milosevic MM-Acoustics www.mm-acoustics.com https://www.facebook.com/pages/MM-Acoustics/608901282527713 |
Posted By: Tony Wilkes
Date Posted: 30 April 2010 at 11:15am
Just about, the MT needs a bit of EQ to get there when crossed at 1.3K . TBH The 4550 is the better option. Tony |
MarjanM wrote:Posted By: bitzo
Date Posted: 30 April 2010 at 11:37am
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+1 I cross it at 800hz
------------- http://www.unitedroots.it - United Roots SoundSystem site |
Posted By: smithers
Date Posted: 30 April 2010 at 1:31pm
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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. |
Posted By: tweeter box
Date Posted: 30 April 2010 at 2:23pm
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where can we find more info on BMS products? ------------- PRECISION SOUND SYSTEM. Feeding the peoples needs for Roots Music. Strictly premium grade reggae and dub steppers from the early 70's to present day. |
Posted By: dlyxover
Date Posted: 30 April 2010 at 2:26pm
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www.bmspro.com ------------- Lignum_ww@icloud.com GNKaudio@icloud.com |
Posted By: Tony Wilkes
Date Posted: 30 April 2010 at 2:38pm
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 |
Posted By: vibez
Date Posted: 30 April 2010 at 3:16pm
Tony Wilkes is the man to speak to as he is a bms supplier.....nice genuine guy too.
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Posted By: SebP
Date Posted: 01 May 2010 at 6:27am
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or make MT-130 with BMS4550 and cross at 1.2K http://hornplans.free.fr/mt130.html - http://hornplans.free.fr/mt130.html |
Posted By: Tekasis
Date Posted: 13 June 2010 at 6:02pm
Where did you xOver @ vibez?
------------- **Heavy Weight-Line** A home without books is like a body with no soul. |
Posted By: Tony Wilkes
Date Posted: 13 June 2010 at 8:30pm
4544 on Celestion H1-9040P on axis. |
Posted By: vibez
Date Posted: 14 June 2010 at 9:09am
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@ tekasis
crossed at 1.3k as advised by tony wilkes.
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Posted By: Tekasis
Date Posted: 15 June 2010 at 9:21pm
 gents!
Looking at the specs of the 4538 & 4544,
http://bmsspeakers.com/cone-speaker-compression-driver/ferrite-compression-drivers/bms-1-inch-compression-driver/bms-4538-compression-driver/4538-compression-driver-intro/ - http://bmsspeakers.com/cone-speaker-compression-driver/ferrite-compression-drivers/bms-1-inch-compression-driver/bms-4538-compression-driver/4538-compression-driver-intro/
http://bmsspeakers.com/cone-speaker-compression-driver/ferrite-compression-drivers/bms-1-inch-compression-driver/bms-4544-compression-driver/4544-compression-driver-intro/ - http://bmsspeakers.com/cone-speaker-compression-driver/ferrite-compression-drivers/bms-1-inch-compression-driver/bms-4544-compression-driver/4544-compression-driver-intro/
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.
------------- **Heavy Weight-Line** A home without books is like a body with no soul. |
Posted By: airbell
Date Posted: 16 June 2010 at 3:47pm
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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 |
Posted By: Sequence Empire:::..
Date Posted: 29 July 2010 at 2:19am
Is there a 1" 60x40 horn that is prefered for the 4550 comp? |
Posted By: levyte357
Date Posted: 26 August 2010 at 6:52pm
+1 ------------- "Who am I? I'm the guy who does his job.. You must be the other guy". |
Posted By: HighLift
Date Posted: 26 August 2010 at 8:29pm
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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.
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Posted By: Tony Wilkes
Date Posted: 27 August 2010 at 10:39am
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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.  Tony |
Posted By: levyte357
Date Posted: 27 August 2010 at 12:23pm
@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". |
Posted By: Tony Wilkes
Date Posted: 27 August 2010 at 12:35pm
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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 |