what are your speakers mounted on?

 

I'm not sure... but I believe a wooden bracket? They were professionally installed.

 

i would check, how long has it been installed?

 

For about a year. I haven't touched anything other than rewire my speakers behind the headunit, and I read the manual for that. I'm going to pop open the door panel or if I can't I can just take it in under warranty and see what he says.

 

your brackets might have rotted if they didnt treat them right. that happened when mine were "professionally installed"

 

Haha really? That's crazy... it is possible, just sounds crazy though. What about my hpf? Is 70hz good or should i turn it up a little more? I like a little bit of bass but I don't want to blow my speakers. Do you know anything about the Memphis Audio component speakers? Those are the speakers I have installed, I'm just guessing the speakers are more for clarity than mid-bass.

 

i dont know much about memphis but most components can do 50hz alright so 70 is fine. mine specifically say 80 so that's what i do, but most will do 50 or 60.

 

Alright, i'm gonna go try that, and I'll let you know what happens. I appreciate the help man.

 

No problem let me know how it goes. just remember your ears dont lie, if it sounds bad turn it down and regroup.

 

i don't think its any of that. whats your crossover point. just because you're using passive crossovers doesn't mean your hpf isn't set way low and depending on the shop they'll not do it. you need to set your hpf way higher than 50 or 60 more like 5k - 7k

 

what? i think the xover he's adjusting the hpf on the amp for the whole set. you dont want that at 5k. you can't change the filter of the passive xover.

 

yes you can....

and then you must be talking about the lpf not the hpf

 

It sounds like you don't know what your doing. Take it to a Memphis authorized dealer before you do any more damage. You also voided the warranty by installing them yourself. A word of advice- do your homework before you mess with expensive equipment. FYI, set the HP at 80hz as well as LP your sub at 80hz also. Preferable both at 24db slope. Gain is very important in setting up amps. Good components should handle down to 50hz with no problem. Be sure to deaden your doors also.

 

maybe dls lets u pick but most component sets do not allow you to choose the xover points

 

no it doesn't matter you can feed your amp different imputs from your headunit or eq. and yes you can still blow your tweet with a passive xover.

 

thats only when running active and that would mean the tweet and the mid would be on separate channels. if you're running a passive component set your not changing the hp for the tweet.

 

yes you can.....

the passive filters it but does not set it. if you have the right eq in your headunit you can set it higher than the passive point

 

if you want to boost the frequencies above or below a xover point to "change" it you risk clipping the signal. not to mention the manufacturer set the xover points there for a reason. this would be a very bad idea for somebody that has limited car audio knowledge, only has a 3-band eq and is already having trouble with their system.

 

No.

To clarify: You can't change the xover point in a passive network (without re-designing the filter). The frequency of the filter is a relationship with the speaker, based on impedance.

Normally (in car audio) the installer creates a "bandpass" filter by high-passing the output of the amplifier that feeds the passive network. Of course the network has a built in low pass for the midbass...making the frequency range of the midbass something like 80-1.5KHz. The highpass network for the tweeter is part of the passive, and no additional/external filtering or protection is required. Most passive networks have tweeter protection built in (DC offset, over voltage, etc.) RARELY do these perform inadequately - and allow the tweeter to blow.

www.bcae1.com - section 54

 

didn't you sell your car yet?

and yes you can. the passive well let it not go below a certain point but that does not mean you can't change the hpf on the amp or on the HU to redirect the signal going into the passive crossover. Typically the passive xover will have them set lower which is why i turn the xover point up a bit.