Need advice on 10" midrange horn drivers

[more10]

I have a horn system from Acoustic Sound Systems in England. I want new drivers for the midrange horns, much higher EBP is needed.

I have to rethink this.

 

[more10]

Found this one through loadspeaker database:

• Eminence BETA-10CBMRA

Much better price!

 

[ErnieM]

Expensive:

Beyma 10MCF400ND
18Sound 10NDA610
Precision Devices PD.103NR1
RCF MR10N301

At a lower price you have:

18 Sound 10M600
Beyma 10MI100
Faital Pro 10PR410
B&C 10NSM76
B&C 10MD26
RCF L10/750YK
Lavoce 10MAF103.00
Oberton 10NM300
Oberton 10M300
Oberton 10M250
PHL 3451
JBL 2012H if you can find them.
Eminence LA10850


The cheapest true midrange I could find besides that Eminence is the Oberton 10M250.
Speaker Oberton 10M250, 8 ohm, 10 inch


I would pick any of the above before the Beta 10 😉

 

[more10]

Thanks Ernie!

I have the RCF installed, it has low EBP.

• RCF L10/750YK EBP 272, BL 17.5
• B&C 10MD26 EBP 345, BL 19.6
• Lavoce MAF103.00 EBP 332, BL 20.7

I will try the Lavoce

 

[otto88]

How did the Lavoce perform, do you have measurements?

 

[profiguy]

I've heard the MAF103.00 in a tractrix FLH. Its a nice driver with high efficiency and smooth FR when horn loaded. Didn't see any measurements but it integrated well sound wise with an 18" bin and a large format mid driver. Cone was a little on the skimpy side, even for a dedicated midbass. I'd personally look at the 10MD26 only becuase it has a solid reputation for use in FLHs. The Lavoce drivers are made in China. It doesn't say this anywhere on the box. I do believe they are decent drivers though based on my experiences.

 

[otto88]

Thanks for chiming in

in the tractrix FLH, what frequencies was the MAF103.00 covering, and do you know the typical range of the 10MD26 in a FLH?

 

[profiguy]

The 10md26 starts rolling off at about 600 hz in a FLH. If you go onto Inlow's website, there's info as well. He also mentions the 10plb76 having more output capability, but it doesn't carry as high as the 10md26. I personally like the sound of the 10md26 overall, even as a direct radiator. This driver along with the 8ndl51, 8pe21, 12pe32 and 12mh32 are my top picks for midbass drivers.

 

[kipman725]

you can use this paper to find the hf corner of a driver in a horn: http://www.xlrtechs.com/dbkeele.com...Preprint) - LF Horn Design Using TS Paras.pdf

You can also get roll off due to the throat chamber volume and acoustic cancelation due to the physical dimension of the cone/throat which you can mitigate with a phase plug.

 

[profiguy]

Yes, a larger throat and more chamber volume will get you a lower rolloff and likely more response irregularities. The drivers themselves are capable of the cutoff mentioned but only if the parameters and design are done right.