Hi, I'm planning to run my system fully active. i'm just wondering what frequency cut-off have people been using in their system.

My system comprise of:
Alpine CDA-9815
Helix HXA500
Dynaudio 240GT (MW160GT woofer and MD100 tweeters)
a/d/s/ r12s subwoofer

Also, would I be better of using the HU's crossover as my amplifier does not have a variable internal crossover (it only has a high/low pass at 85Hz). Or should I buy an external crossover? Or should I buy a module (there is a module offered by helix) to enable variable crossover for my amp?

Sorry for the long post, hope someone can help me. Thank you

personally i'd doubt you'd be able to do that much better than sticking with your dyn crossover. maybe a bit better powerhandling. but the dyn crossovers are pretty damn good quality.

anyway if you do want to experiment, i'd start around 2800Hz(xover freq of x250) and play around from there.

there's a great xover on the for sale forum. might be what you are looking for.

Hi, thank you for your reply. My amplifier is a 5 channel, and their 4 stereo channel (4x65wrms at 4 ohm) is not bridgable so I can only give 65wrms to the front split, with the other 2 channel driving the rear fill. Unless I go for an active setup.

Which one do you think offer better performance?
-Low pass for the mid driver say from around 4000Hz and high pass the tweeter from around 2500Hz
OR
-Band pass the mid driver from 50Hz to 5000Hz and high pass the tweeter from around 2500

Anybody else can help me?

Ok My Active set up is as follows

Oz Audio Silk Cotten Tweeters 1"
Oz Audio 6.5" Mids
Alpine Bass VR 10"
Hertz 5 Channel

Tweeters HighPassed @ 1500Hz
Mids Bandpassed High Pass 40Hz Low Pass 3000Hz
Sub Low Passed 50Hz

hertz 5 chan
Hertz hienergy 6.5in mid's
MTX 300 tweeters
Boston pro 10.5lf

tweeters 2khz >
mids bandpassed 45hz up to?? cant remember
sub 45hz <

Thanks for the replies I sent an e-mail to helix/brax and they recommend me to low pass my mid driver instead of bandpassing it. Do you think it would damage my driver if it constantly plays frequency below it's frequency range?

Nobody can help a loss person?

my MW160GT sound bit yucky when playing too low. might be my setup. but i don't think those drivers are really meant to play not HPF.

but just give it a go with moderate listening levels. raise the level... if you can here the MW160GT distorting early then you'll need to HP it.

maybe start low as 50. then raise the HPF slowly till you get the right balance between powerhandling an bass response.