Speaker crossovers

[lduarte1973]

i´m looking for a easy , good quality 2 or 3 way crossover to build that i can adapt to diferent speakers by chaging component values .

[CharlieLaub]

What's your preference: active, passive or DSP?

I have some PCBs designed that have two 2-way (LP+HP times two) 2nd order active crossovers with adjustable corner frequency, Q, and input gain. You could use these in a 2- or 3- way crossover system that is reconfigurable. Adjustments are made via multi-turn cermet potentiometers, or you can use off-board panel-mount potentiometers if you would prefer.

I have had a couple of inquiries about the boards, so I may send the design out for a production run. I tested a prototype of the board and it was great. I added a few extra connections so that a notch filter can also be created.

I posted about the board previously, but have made some additions since then, so I should probably start a new thread about it.

-Charlie

[lduarte1973]

i was thinking of passive crossover , but I have other projects i want to use active too

[tinitus]

due to no high pass series cap on midrange its not suited for exstreme SPL
well, unless you use very tough pro midbass
with normal hifi midbass it works really well at moderate SPL

looks simple, but tricky to adjust properly
very sensitive to 'timing'
even very small adjustments can make it like 'night or day'

[lduarte1973]

can i use it with 4 ohm woofer , 8 ohm mid and 8 ohm tweeter ?

[tinitus]

Originally Posted by lduarte1973

can i use it with 4 ohm woofer , 8 ohm mid and 8 ohm tweeter ?

no problem as such
values are different
but with different drivers they will be anyway

adjusted a resistor
it worked, and it didn't, fully
changed a few other resistors to make it work
and it works again, for now

just a small change to a single component
and other components will need change as well
thats how it is with this xo

but there's a trap
even if it sounds great, phase may be wrong
your ears get annoyed
or you are constantly moving your head

you will feel it in your ears when its right
its difficult, takes time and practice
and 3ways may never be perfect
I expect my speaker/xo will still need more work

[lduarte1973]

thanks

[tinitus]

just a short note

I changed reversed polarity on mid to reversed pol on tweeter
maybe it works better because xo is more like kind of a 2.5way

far from finished yet
but its doing something right
jingles are dissected in a funny way such that you can hear each element used to compose it
but in coherent and musical way
definately a musical monitor
and that was my goal