B&C DCX464

Do you know if AudioXpress will be doing a test review?

Hey Joseph,

Just send the first two samples to Vance along with a giant prototype horn, should be reviewed in a few months.

Was wondering about this. Can you link to a description?

Hey Allen, not yet. The patent should grant by the end of next year, at which point we can discuss it.

B&C Sales & Operations Director – North America

See B&C Speakers

That's me! I have this info in my profile page, but it doesn't appear there's anywhere more visible I can put it. Any suggestions?

Any plans for an 8ohm DCX464??
How does the DCX464 compare to 4594nd for HIFI??

The 8Ω version is approved and should go into production soon. You'll have to decide how you feel about sound quality, I don't think it's appropriate for me to make a subjective comparison.
 
Bennett would you like to elaborate a little on that horn ? Will it go into production one day ? Size ? Usable lower frequncy ? Directivity?
Hey Charles,

Sure, a photo of it is attached. It loads to about 300Hz, but we have no intention of making exactly this horn commercially available. I sent one to Vance because otherwise there's no commercially available horn that will allow the full capabilities of the driver to be tested.

Whether we'll build something for general availability is a topic of heavy discussion, given the following points:
  1. None of our main OEM customers will use any publicly available horn we build.
  2. Any horn this large will be quite expensive to build, and especially to ship.
  3. Tooling costs for a horn this size are enormous, so we don't want to design and tool a family of horns.
  4. Hard to decide what a reasonable pattern and cutoff would be, which could be catch 80% of customer demand outside large OEMs (who will build their own no matter what we do).
 

Attachments

  • 2019 03 Suggested DCX464 test horn.pdf
    35.2 KB · Views: 349
  • IMG_0073.jpeg
    IMG_0073.jpeg
    346.4 KB · Views: 1,184
Hey Charles,

Sure, a photo of it is attached. It loads to about 300Hz, but we have no intention of making exactly this horn commercially available. I sent one to Vance because otherwise there's no commercially available horn that will allow the full capabilities of the driver to be tested.

Whether we'll build something for general availability is a topic of heavy discussion, given the following points:
  1. None of our main OEM customers will use any publicly available horn we build.
  2. Any horn this large will be quite expensive to build, and especially to ship.
  3. Tooling costs for a horn this size are enormous, so we don't want to design and tool a family of horns.
  4. Hard to decide what a reasonable pattern and cutoff would be, which could be catch 80% of customer demand outside large OEMs (who will build their own no matter what we do).

NICE!!! :)
 
Hi Bennett

Thanks for sharing that picture. It looks very cool. A pity that it will not be available. But I understand the reasoning behind not doing all the effort for something that might not sell. I do also understand the reasoning for building a one-off that helps showing the driver's full potential to testers.

Regards

Charles
 
None of our main OEM customers will use any publicly available horn we build.

That's where some of the secret sauce is. Every manufacturer has their own way to design a horn that meets their objectives. Also if an off the shelf horn and driver is used it makes the loudspeaker very easy to copy. I've got the first cut of an OEM horn for this driver designed, I'm just waiting for a pair for testing.

I'd guess the DIYers who are not prepared to roll their own horn are a very small percentage of B&Cs market, especially for drivers like this.
 
300Hz Tractrix, 585 x 428 x 368mm (WxHxD)
Fiberglass, 6mm walls, gelcoat and 8x reinforcing ribs.

These were £100 each to make.
 

Attachments

  • 20525541_2029931050575110_6172291727190901059_n.jpg
    20525541_2029931050575110_6172291727190901059_n.jpg
    31.4 KB · Views: 1,082
  • 20638180_2029931060575109_1856169174556025424_n.jpg
    20638180_2029931060575109_1856169174556025424_n.jpg
    29.4 KB · Views: 1,066
  • 20708280_2033132516921630_8141528953378754177_n.jpg
    20708280_2033132516921630_8141528953378754177_n.jpg
    58.9 KB · Views: 1,059
That's where some of the secret sauce is. Every manufacturer has their own way to design a horn that meets their objectives. Also if an off the shelf horn and driver is used it makes the loudspeaker very easy to copy. I've got the first cut of an OEM horn for this driver designed, I'm just waiting for a pair for testing.

I'd guess the DIYers who are not prepared to roll their own horn are a very small percentage of B&Cs market, especially for drivers like this.

For an OEM there are 2 main objectives in the following order, reduction of:
1. Cost
2. Size.

Size is 9 out of 10 times a performance limiting factor for large format drivers.

(also) A little reductive, but still: the best horn is an oversized horn.
 
Last edited: