Best horn/compression drivers for music?

[tinitus]

been looking more at the big BMS mid drivers

and beginning to realise why they may get into trouble

 

[tinitus]

well, I might try one of the new RCF ... from the cheap end

 

[Jack Arnott]

Hi Tom
what are the possibly excursion of annular diaphragms?
and annular diaphragm area seems less than dome (for equal coil diameter)

For equal coil diameter, the ring radiator diaphragm has a larger surface area than a conventional dome. This is because there is diaphragm inside and outside the voice coil.

 

[audiodesign]

only reasonable choices are:
BMS 4540ND
B&C DE250
Beyma CP380M

Never tested DH1A EV ? There are some low cost drivers on Ebay store

 

[duder1982]

Never tested DH1A EV ? There are some low cost drivers on Ebay store

I know a couple people using the EV DH1a on the jbl 2360 and they say it sounds great.

 

[Patrick Bateman]

Why not just make your own?

A $19 Vifa XT25 on a good waveguide works great, and due to the fact that there's no compression chamber, the impulse response is superior to a compression driver.

A $15 Pyle sealed back midrange makes a great midrange compression driver.

 

[weltersys]

Never tested DH1A EV ? There are some low cost drivers on Ebay store

I tested a number of drivers:

http://www.diyaudio.com/forums/multi-way/212240-high-frequency-compression-driver-evaluation.html

There are music clips in the post that allow you to hear the drivers at differing levels from "home listening" to "rock and roll" volume.

The old EV DH1A was the best driver in the test for music in terms of dynamic range, lowest distortion, and also was among the smoothest frequency responses.
The EV DH1A has a 1.4" to 2" "snout" that can be removed (heat the screws to soften the thread lock compound) for use on 1.4" horns.

The only negative features of the EV DH1A are it's size and weight. The EV N/DYM 1 eliminates those two problems, and has a slightly smoother frequency response too.

Art

 

[winslow]

Yeah that DH1A is a pretty massive driver.