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Recommendations - Alternative CDs for MT122

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=108006
Printed Date: 17 April 2024 at 4:25am
Software Version: Web Wiz Forums 12.06 - https://www.webwizforums.com


Topic: Recommendations - Alternative CDs for MT122
Posted By: 1ManSoundsystem
Subject: Recommendations - Alternative CDs for MT122
Date Posted: 26 July 2023 at 3:48pm
whats up peepow

i have 4 MT122 with 2x 12NDL76 each and beyma 1x CP-800/Ti

now the beyma compression driver goes nuts above 16~17khz
its really nasty sounding, so i have to almost eliminate everything above 17khz.
sounds not good :/

my question is for alternative recommendations, any compression drivers that would fit
into MT122 and sound good up to 20khz ? i remember some people wrote many years ago,
that these CDs doesnt sound so well and after some events i can agree with that, up to 16 17khz
everything is ok, but above that, it drills your eardrums at higher volumes. i played around with different settings LMS /EQ but with no success. except the crazy ass weight of the MT122
i love them, they kick like hell, specially psytrance and sound incredible.
im 41 and the weight sux. but what u gonna do if you in love with soundsystems :)

so any recommendations would be appreciated ! price is secondary, soundquality is more important.

thanks !Thumbs Up

greetings from germany



Replies:
Posted By: levyte357-
Date Posted: 26 July 2023 at 4:02pm
Originally posted by 1ManSoundsystem 1ManSoundsystem wrote:


my question is for alternative recommendations, any compression drivers that would fit
into MT122 and sound good up to 20khz ? i remember some people wrote many years


Can you hear upto 20 khz?
For a start, which horns do you have?
If horn is not matched to the CD, forget all about nice sound upto 20khz.

If 18khz in quantity, will do, I can recommend the following CD from personal use: 
Beyma CP850TI 2", run 1.5khz - 18khz

Horns I have used with this:
B&C ME75 Alum, very very expensive.
Paudio PH - 4525 http://p-audio.co.uk/pdf/PH_4525.pdf" rel="nofollow - http://p-audio.co.uk/pdf/PH_4525.pdf

Both available from Blue Aran.

Best 2" Horn I have ever heard, for upper freq extension, and throw, is this:

https://products.electrovoice.com/binary/HP940_Horn_EDS.pdf" rel="nofollow - https://products.electrovoice.com/binary/HP940_Horn_EDS.pdf

I have about 10x of them, and would take "beaucoup d'argent", to loose any from my grasp.

They are huge, and may not fit in MT122.



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Global Depopulation - Alive and Killing.


Posted By: smitske96
Date Posted: 27 July 2023 at 12:17am
Ciare PR614 would be one of the best options for a 1.4" HF. 
Also note that the CP800/Ti is a pretty old HF driver which is not capable of delivering good performance >10kHz.

Almost all modern 4" diaphragm HF's stop at 16kHz (which is not a problem for most PA situations). So I am quite sure you are hearing something different than the problems at 17kHz.


Posted By: 1ManSoundsystem
Date Posted: 27 July 2023 at 12:29am
i see....... hmmmm

what i can tell is, no, i pretty sure cant hear anything above 15khz.... i dont know,
but what killed our ears were really harsh highs.... horrible.... i cant tell for sure which hz-range, but it was pretty ...high :/ the horns im using are BMS 2230.

when its not the weird upper ~17khz range thats cacophonous, what could it be ?

maybe shitty material, cant remember what we played (dj live and phone/mp3/flac) maybe strange routing (ultradrive)....hmm

thanks so far





Posted By: Sinai Sound
Date Posted: 27 July 2023 at 8:03am
BMS 4590 if you have an existing 2" horn

The BMS 4594HE sounds better imho, (I own 16), but you'd need a 1.4" horn flare

The B&C DCX464 is also worth a look, but I'd say that has a better mid range, than HF


Posted By: sarsen1
Date Posted: 27 July 2023 at 10:14am
In my experience, harshness is typically in the 1k to 10k range, above that is more considered 'airy' or 'sizzle'. 4k is a particularly offensive area that I would normally look at first when top end is harsh/unpleasant. But yeah poor quality source material (anything below 320 mp3) can make for unpleasant top end.


Posted By: levyte357-
Date Posted: 27 July 2023 at 10:56am
I Have never rated the CP800TI, much prefer the CP750TI, even if it is cheap and cheerful.

There is an art to tunng 2" Comps, and it involves more cuting, and flattening. than boosting eq.

BMS 4590 ( previously recommended), is a most excellent choice, another similar solution, would be run 2" Comps upto 10khz, and add 1" per cab, run active also, tuned from 9khz to 18khz. Could place 1" horn, in top 12" horn flare.

Needs right 1" and horn, e.g., B&C DE25 and ME45 horn, (cheap option), or maybe something more bourgeois.



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Global Depopulation - Alive and Killing.


Posted By: 1ManSoundsystem
Date Posted: 27 July 2023 at 3:12pm
awesome information, thank you !Embarrassed
i will have a deeper look into the infos provided.

recently, i got a minidsp umik1 microphone for meassuring.
will spend some more time with that as well.

the BMS 4590 is bizarre expensive Oo i thought the Beyma 800TI are expensive, but it seems
there is no limit for 2" CPDs    holy.......



Posted By: levyte357-
Date Posted: 27 July 2023 at 4:43pm
Originally posted by 1ManSoundsystem 1ManSoundsystem wrote:

awesome information, thank you !Embarrassed
i will have a deeper look into the infos provided.

recently, i got a minidsp umik1 microphone for meassuring.
will spend some more time with that as well.

the BMS 4590 is bizarre expensive Oo i thought the Beyma 800TI are expensive, but it seems
there is no limit for 2" CPDs    holy.......


Why is BMS 4590 so expensive !?
Because it gives you exactly what you want..


Remember it is a 2" and 1" combined.

What horns do you have?
No point buying expensive driver, and having trash 2" horns.



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Global Depopulation - Alive and Killing.


Posted By: 1ManSoundsystem
Date Posted: 27 July 2023 at 9:21pm
dont u think 600 ( Oo) Euro for one 2" CPD isnt expensive ?
i spend some 1000s for 1851s and some more on a 180cm amping tower,
but wow, ~600Eur is crazy.

the horns im using are BMS 2230
(BMS 2230, 50mm CD-Horn 90°x55° )

back 3-4y ago 93eur a piece, now 160 Oo ....boy


Posted By: MarjanM
Date Posted: 27 July 2023 at 9:34pm
RCF ND950 



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Marjan Milosevic
MM-Acoustics
www.mm-acoustics.com
https://www.facebook.com/pages/MM-Acoustics/608901282527713


Posted By: 1ManSoundsystem
Date Posted: 28 July 2023 at 5:32am
Thumbs Up
thx


700eur for  RCF ND950    ma´yyyyan, dayum this is insane

sure this thing plays music exclusively or releases some flying unicorns as well?



Posted By: MarjanM
Date Posted: 28 July 2023 at 9:40am
Good stuff is not cheap. You want good sound, you pay for it.

-------------
Marjan Milosevic
MM-Acoustics
www.mm-acoustics.com
https://www.facebook.com/pages/MM-Acoustics/608901282527713


Posted By: 1ManSoundsystem
Date Posted: 28 July 2023 at 6:05pm
absolutely, thats what i preach to my buddys all the time.
but even for me it takes some time to get used to these prices :)


Posted By: luton_soundman
Date Posted: 29 July 2023 at 9:28am
Your first post said quality first price second... Embarrassed

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Sound Hire/Sales new/used equipment.


Posted By: MarjanM
Date Posted: 29 July 2023 at 10:14am
Check some of the beryllium cone hf drivers. Then these that we suggest here would appear dirt cheep ;)

-------------
Marjan Milosevic
MM-Acoustics
www.mm-acoustics.com
https://www.facebook.com/pages/MM-Acoustics/608901282527713


Posted By: Earplug
Date Posted: 29 July 2023 at 10:29am
It is funny how the most expensive drivers available almost always get pushed straight away on here.  LOL Smile LOL

I've got several P-Audio BM-750's and I love 'em. On a decent horn they hold up well up to around 17kHz . I've also tested them against the original B&C DE-750, as well as several JBL, Beyma and other drivers. They are great - and won't need a bank loan, like so many others.   Smile




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Earplugs Are For Wimps!


Posted By: toastyghost
Date Posted: 29 July 2023 at 11:31am
Originally posted by 1ManSoundsystem 1ManSoundsystem wrote:

Thumbs Up
thx


700eur for 
   
   
   RCF ND950    ma´yyyyan, dayum this is insane

sure this thing plays music exclusively or releases some flying unicorns as well?



Half that, no?
https://en.toutlehautparleur.com/compression-driver-rcf-nd950-2-0-8-ohm-2-inch.html


Posted By: 1ManSoundsystem
Date Posted: 30 July 2023 at 12:56pm
"With a $2,258 list price, I suspect this compression driver will find its way into very high-end theater speakers and PA systems, where detail and timber at high volume levels is essential. Beryllium has an outstanding sound quality and excels at detail and definition, so making a compression driver diaphragm from this material has been highly successful"

Oo ok, im convinced.

i just did a quick checkup on the RCF nd950-2 and found that 700~ price.
toutlehautparleur.com is a good find, are they to be trusted? never heard of them.

P-Audio is some thaibrand if i remember correctly? never worked with some of their product, but been to thailand several times, when it comes to PA and speakerequipment in general.....
its mostly big and loud and cheap, in thailand the most important thing when it comes to a gift is the box its wrapped into, the gift itself is secondary. so when i was at a party or festival (were they have countless foodstalls) they have big PAs that sound like a tortured trashcan.

i will give P-Audio a look.

whats your opinion on the BMS 2230 horns im using? i have nothing to compare, every hornspeaker here is diy.









Posted By: Earplug
Date Posted: 30 July 2023 at 3:46pm
"i will give P-Audio a look."

Please do. Almost all of the plans for the mid-top cabs on this site come with P-Audio as the recommended driver. I basically went from Gauss to P-Audio and have never regretted it, especially as regards the weight difference when you change to the neodymium drivers!   LOL

And yet to blow a P-Audio driver. In over 15 years I've been using them. Several different models, 18's, 12's and 2". Just think about that one!   Beer





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Earplugs Are For Wimps!


Posted By: Lucasdude
Date Posted: 01 August 2023 at 10:50am
At the cheaper end of the scale, Nigel@leanbusiness still has some 2" Celestions on sale for £90. I think they are CDX20 3075.


Posted By: levyte357-
Date Posted: 01 August 2023 at 11:38am
A good maxim, in terms of buying sound system parts, is buying the best you can afford, as opposed to the cheapest you can find.

As stated previously, if you can't find used BMS 4590 in your budget, consider getting 1" comp and horns to go in spearate cabs above your MTs, or fit the 1" horn flare inside the 12" MT flare, similar to this void cab.



For best results, I used LMS, with fully active sections, powered by separate amplifiers.




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Global Depopulation - Alive and Killing.



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