Mid Range Driver with BMS 4599
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Category: General
Forum Name: Advanced Discussion
Forum Description: Advanced discussion area for higher lifeforms
URL: https://forum.speakerplans.com/forum_posts.asp?TID=107774
Printed Date: 27 March 2026 at 4:55am
Software Version: Web Wiz Forums 12.08 - https://www.webwizforums.com
Topic: Mid Range Driver with BMS 4599
Posted By: palesha
Subject: Mid Range Driver with BMS 4599
Date Posted: 19 March 2023 at 12:12pm
BMS 4599 is used in my country from 660 hz onwards. The spl level is very high 123db as claimed. But in practice say you get 118db. But which low midrange driver to be used to match this.4599ND SPECIFICATION
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Replies:
Posted By: smitske96
Date Posted: 19 March 2023 at 12:14pm
| I am more curious about what you would use as a HF above that one. |
Posted By: Peter Jan
Date Posted: 19 March 2023 at 2:17pm
| I would say something like 2 or 3 hornloaded high sensitivity 12" (like B&C 12PE32) |
Posted By: Jo bg
Date Posted: 19 March 2023 at 4:45pm
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You don't need to match that numer, it is sensitivity, it does not tell how loud this could go but just the level you get with 1w input. It is normal to have less sensitivity as you go lower but that is usually offset with more power capability, so you can push more power in the lower ways and reach same output level even if sensitivity is lower. |
Posted By: palesha
Date Posted: 20 March 2023 at 2:29am
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This means i need more powerful speaker to get more output. or need to use multiple horn loaded speakers as suggested by peter jan.
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Posted By: smitske96
Date Posted: 20 March 2023 at 8:12am
| I would go for something like a dual PM60/PM90 LF section. But again, what you need above the BMS is much harder to fullfill imho. |
Posted By: Lucasdude
Date Posted: 20 March 2023 at 9:14am
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APPLICATIONS The 4599ND has two most outstanding features: It is the loudest audio transducer ever made The frequency range is optimized for human voice. Those capabilities make it best suited for: Communication devices for long distances Security systems Emergency devices Mass notification systems Systems for scattering birds from airports Marine applications Military and police communication systems Noise cancelation systems High End Audio Loudspeakers |
Posted By: Lucasdude
Date Posted: 20 March 2023 at 9:16am
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I never knew such a thing existed! Looking at the frequency response graphs, it's seems that the sweet spot for the driver is around 600hz-4khz. |
Posted By: Lucasdude
Date Posted: 20 March 2023 at 9:21am
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You could probably use one of those with 4x 12" and 4x 1.5" HF. With some clever space saving loading for the 12s, that could make for one helluva line array cab! |
Posted By: thirtha
Date Posted: 08 April 2023 at 2:03am
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4599 presents two problems, 1. selecting the right horn ( some thing that can go down to 600 HZ ) and 2. getting a HF that can keep up with the 4599 all the way up to 16 K atleast. I have measured the 4599 using omni mic and I can say that the 4599 has nothing above 6/7 KHZ. Finding a good compression driver that can do 6K to 16K at the SPL of the 4599, and getting both horns to work well with each other is a nightmare.
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Posted By: csg
Date Posted: 08 April 2023 at 7:13am
https://imgbb.com/" rel="nofollow"> ------------- “The fact is this is about identifying what we do best and finding more ways of doing less of it better” |
Posted By: LjudLahger
Date Posted: 08 April 2023 at 4:35pm
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csg wrote:Posted By: Line Array
Date Posted: 20 March 2025 at 3:15am
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you need to consider that with compression drivers often the limiting factor is distortion and not SPL that is a cone driver may burn up the VC before sounding unlistenable but a CD may become unlistenable before it burns up this is because compression drivers still have all of the distortion mechanisms of regular drivers plus additional distortion mechanisms unique to compression drivers QSC has a 4-way Cinema system with BMS Co-Axial and they cross it to 10" midrange at like 1.5 khz. i actually think that's a pretty balanced design. in other words it shouldn't be your goal to get every last SPL out of a compression driver - just get your money's worth - don't be greedy.
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