May 15, 2011 01:49 am Depends on the year that it was made. For the most part, they are usually TO components. Meaning normal through pin. But there are some that I have seen that are SMD/SMT.
Behringer CX 3400 Crossover -Fixable?
Posted on May 14, 2011 08:29 am
GCT
Member Since: May 14, 2011
Hi
I'm just asking about the Behringer CX3400 crossover. I want to know if they're simple to fix. Anyone know what they look like inside? If they're normal OP amps or real miniature circuits which would be difficult to fix.
Thanks
GCT
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May 15, 2011 01:49 am Depends on the year that it was made. For the most part, they are usually TO components. Meaning normal through pin. But there are some that I have seen that are SMD/SMT.
May 15, 2011 03:37 am Oh Thanks.
Are the new ones SMD or the old ones? Any idea of dates?
May 15, 2011 12:47 pm I think anything that is about 4 years old or so. That is about the time period that Behringer bought Midas. And the Midas team started designing for them.
May 16, 2011 03:35 pm So it's the new stuff thats SMD or the old?
Cheers
May 16, 2011 07:41 pm Surface Mount Device/ Surface Mount Technology are the new style of mounting.
TO 90, or TO 220, And the list goes on and on on this, is the loder style.
Jul 31, 2011 12:13 pm We got a Behringer in the end -it's SMD as you said, but nicely layed out, so it's quite easy to fix - just a lot of little op amp circuits all in neat rows.
Jul 31, 2011 12:51 pm Yes they are. :)
I'm not 100% sure, are they still using the 4558D's in there? Or did they finally move to the NE5532P's?
Jul 31, 2011 06:31 pm I seemed to think they were TL072 but I'd have to check. Memory not my strong point.Don't think they went as far as NE5532 for the price.
By the way, the Turbosound method you mentioned of keeping vocals on paper up to 4k. The 2226 are only flat off axis up to about 1K. Are they using 10" or something or are we delibeately creating a hole between 1 and 4 k. My ears said the mids out of phase sounds good but 1.2K gave good results at low volume. The original JBL 2226 cabs specify 1.2-1.4k and I just heard that the Martin cabs are using 15" and 10"to get up there.
Jul 31, 2011 07:12 pm Yeah. That sounds about right. I know that between the 10 and the 2 inch that Turbo uses, there is a considerable hole. This is to compensate for the excessive energy in the top end. And also the mids are usually ran out of phase to control the lobe center. To either bring it up, or on center.
Also, the crossover on Turbo's keeps the horn at a perfect 25 degree width. At what angle are you running the top end at?
Aug 01, 2011 12:19 pm 90º x40º horn flare.
So just checking I understood -Your turbo goes from 10" to 2" horn motor?
Is that an active crossover that adjusts the HF lobe with time alignment - if not please explain.
Aug 01, 2011 12:33 pm Yup. Active crossover with time alignment. Well, plus what they call a polycell. A series of twists and bends that make every spot on the horn the same length. But, that's about it.
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