what XOVER do i need for 80-120 htz midbass?

[basscort2009 5,000+ posts]

so i just ordered some mach 5 mli-65 mids and i asked the mach 5 guy what to cross them at and he said there good down to 70 htz.

so where can i find a xover that supports that low of a midbass? the ones i found on ebay (audiopipe) were 500 ht and that the lowest i found. any other websites i can go to?

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[djman37 5,000+ posts]

Go active or partsexpress sells inline stuff or set HPF on your amp to 70hz.

i've been running those mids for a while and really like them.

 

[SSS 18734 5,000+ posts]

Why don't you use your head unit to cross them over there? Most HU's have a HPF right around 70hz.

I also have a Memphis CX35 crossover I'd be happy to sell you for a good price. Variable high pass crossover from 50 to 400 hz for your mids. PM me if interested.

 

[basscort2009 5,000+ posts]

so no on the 2 way xover? i have 2 tweeters and 2 mids for the front stage but only 2 channels on my amp left open. thats why i was leaning toward the 2 way. and the parts express ones just say like 2.5k or 3k and ect.... none say 100 htz or anything close.

 

[basscort2009 5,000+ posts]

Go active or partsexpress sells inline stuff or set HPF on your amp to 70hz.
i've been running those mids for a while and really like them.

this amp has freq. from 50 to 250 range but if i set it to that freq and then hook up a 2 way xover will that make the tweeter not play at its full potential?

 

[basscort2009 5,000+ posts]

Why don't you use your head unit to cross them over there? Most HU's have a HPF right around 70hz.
I also have a Memphis CX35 crossover I'd be happy to sell you for a good price. Variable high pass crossover from 50 to 400 hz for your mids. PM me if interested.

i guess now i think about it i still need some kind of a xover becuz i have 4 speakers and only 2 channels left on my amp

 

[basscort2009 5,000+ posts]

ok so i still need a xover and cant find one //content.invisioncic.com/y282845/emoticons/frown.gif.a3531fa0534503350665a1e957861287.gif

 

[ciaonzo 5,000+ posts]

I just can't wrap my head around how bad you're fucking up something so simple unless I'm totally missing something myself. If you only have two channels left on your amp, they should be used for a set of comps with a passive filter between the tweeter and mid. For the filter between the mid and the sub, you should be using either the head unit or the amplifier's ability to actively adjust the high pass filter for the mid, and low pass filter for the sub, at around the 80hz mark, assuming that's where you would like to cross at. Most four channel amplifiers have built-in HP/LP filters used for exactly that purpose. The type of components to build a passive network at those frequencies are big and costly, not to mention, performance-robbing. Low frequencies should always be handled actively for optimal results.

 

[Alpineforever 10+ year member]

I just can't wrap my head around how bad you're fucking up something so simple unless I'm totally missing something myself. If you only have two channels left on your amp, they should be used for a set of comps with a passive filter between the tweeter and mid. For the filter between the mid and the sub, you should be using either the head unit or the amplifier's ability to actively adjust the high pass filter for the mid, and low pass filter for the sub, at around the 80hz mark, assuming that's where you would like to cross at. Most four channel amplifiers have built-in HP/LP filters used for exactly that purpose. The type of components to build a passive network at those frequencies are big and costly, not to mention, performance-robbing. Low frequencies should always be handled actively for optimal results.

He only has two channels open and watns to run tweeters and midbass, thats what you're missing, it won't work like u say unless he has an inline passive crossover because his mids need a Bandpass (meaning high and low crossover working together) and his tweeters need a seperate high pass crosssover, not going to be possible with just two channels. Especially if those two channels only have one set of crossovers for them which is pushing it as my Sundown SAX 100.4 has only one crosover for each set of channels, meanign i can either high or low pass, not both and certainly not a bandpass with a high pass at a seperate point.

If his passive crossover has a high pass point at 100 hz for the mid, then no matter what he does he can't cross it over below 100, because the passive is inline and still working, it doesnt matter if his head unit has a hpf at 70, when the audio signal gets to the inline passive crossover the crossover point will then be changed to 100 hz...

He's asking if there is a passive crossover that goes down to 70hz for it's hpf point for the mids, does anyone know where to find one.

 

[ciaonzo 5,000+ posts]

i guess now i think about it i still need some kind of a xover becuz i have 4 speakers and only 2 channels left on my amp

From this, I get that he has two remaining channels on an amplifier that has more than two.

He only has two channels open and watns to run tweeters and midbass, thats what you're missing, it won't work like u say unless he has an inline passive crossover because his mids need a Bandpass (meaning high and low crossover working together) and his tweeters need a seperate high pass crosssover, not going to be possible with just two channels. Especially if those two channels only have one set of crossovers for them which is pushing it as my Sundown SAX 100.4 has only one crosover for each set of channels, meanign i can either high or low pass, not both and certainly not a bandpass with a high pass at a seperate point.
If his passive crossover has a high pass point at 100 hz for the mid, then no matter what he does he can't cross it over below 100, because the passive is inline and still working, it doesnt matter if his head unit has a hpf at 70, when the audio signal gets to the inline passive crossover the crossover point will then be changed to 100 hz...

He's asking if there is a passive crossover that goes down to 70hz for it's hpf point for the mids, does anyone know where to find one.

As I said, he needs a passive filter between the tweeter and mid and then he needs to use the amplifier's high pass filter. The passive provides the low pass, the amp provides the high pass. Eureka!!! Bandpass.

 

[basscort2009 5,000+ posts]

He only has two channels open and watns to run tweeters and midbass, thats what you're missing, it won't work like u say unless he has an inline passive crossover because his mids need a Bandpass (meaning high and low crossover working together) and his tweeters need a seperate high pass crosssover, not going to be possible with just two channels. Especially if those two channels only have one set of crossovers for them which is pushing it as my Sundown SAX 100.4 has only one crosover for each set of channels, meanign i can either high or low pass, not both and certainly not a bandpass with a high pass at a seperate point.
If his passive crossover has a high pass point at 100 hz for the mid, then no matter what he does he can't cross it over below 100, because the passive is inline and still working, it doesnt matter if his head unit has a hpf at 70, when the audio signal gets to the inline passive crossover the crossover point will then be changed to 100 hz...

He's asking if there is a passive crossover that goes down to 70hz for it's hpf point for the mids, does anyone know where to find one.

thanks for explaining that.

 

[basscort2009 5,000+ posts]

From this, I get that he has two remaining channels on an amplifier that has more than two.


As I said, he needs a passive filter between the tweeter and mid and then he needs to use the amplifier's high pass filter. The passive provides the low pass, the amp provides the high pass. Eureka!!! Bandpass.

yea but i need a passive xover that has a mid xover freq of lower than 500 htz!!! i cant set my HU to 70 htz if the passive freq on the xover is set to 500

 

[basscort2009 5,000+ posts]

cliff notes***

I NEED A PASSIVE XOVER THAT HAS AROUND 80-120 HTZ FREQ ON THE MIDBASS PART OF IT

 

[ciaonzo 5,000+ posts]

yea but i need a passive xover that has a mid xover freq of lower than 500 htz!!! i cant set my HU to 70 htz if the passive freq on the xover is set to 500

Are you running a two-way front stage or a three-way?

Sub-Mid-Tweet OR Sub-Midbass-Midrange-Tweet?

How many amplifier channels total do you have?

If it's four, do those have the ability to HP/LP respectively?

 

[basscort2009 5,000+ posts]

i just want to run a 2way setup in the front, midbass and tweet. i have 2 channels left on my 4 channel amp. and yes the amp has lpf and hpf for each set of channel.