Active crossover advice for 1000hz biamp

Hey, how about a balanced Marchand along with a Manley Massive Passive EQ. Only another $5K, but all analog.

Alan, in order to do this correctly, you need to match amplitude levels, bring acoustic centres pretty close and, of course, choose the optimum xover frequency and, not least, the best acoustic xover slope... a few other things perhaps, but the above are really necessary.

So, can you find / buy an inexpensive tool ($¬200) in the form of a Behringer deq or their dsp? OK, it's audiophile non-approved BUT you can use it to determine all the optimal parametres of yr system. Once you know that, go ahead & buy the best xover. At least you'll know what to do with it!

Thanks Greg.
Thats a very good advice I will do it. I was checking
and you are talking about the behringer DCX, its the digital crossover. I was also reading and doesn't have so many bad comments. A lot of people is using them in their setups with little degradation and there is and upgrade path of the analog outputs!!!
Maybe I will stay with the DCX for a long time, for what I understand its lack of hi end is balanced on the other side with the tools you have to shape the sound on real time.
At the end like in everything in life there is no free lunch.
Thanks
Alan

Alan I am in the process of converting my speaker to use an active crossover. I have experimented a bit with a borrowed DEQX, and I can tell you that you DEFINITELY do not want this thing in your signal path. So, I plan to use the DEQX to help me find my settings. After that I will "hard wire" the crossover to the mids and highs with a Marchand, and use the DEQX for the woofer and subwoofer.

I do not wish to scare you, but with your horns you have a few considerations you may want to implement in your crossover.

1. Slope. I have found that steeper slopes sound better. Not true in a passive crossover, because you need a lot of components in the signal path to get a steep slope.

2. Phase and time alignment. I was surprised how much of a difference this makes. The sound suddenly becomes so much more coherent when it is properly time aligned. You may be able to do this by physically arranging the drivers, but it can be hard to do this (and achieve an aesthetically satisfactory result) with a horn.

3. Equalization. Ideally you only want to equalize below 200Hz and not above, because all equalizers introduce colorations of their own. You may want to consider some notch filters to take out some peaks in the F/R curve.

The success of your system will be VERY dependent on how succesfully you implement your crossover. More than anything else. A badly designed crossover with good drivers, amps, etc. will never sound good. I wish you the best of luck :)

Regards,

Keith

Look into the Accuphase F-25 Active crossover. It is an analog unit and can be 2-4 way.