Dukk

You have this a bit skewed. If the speaker lists a response down to 1khz, it is up to you to be sure you don't feed them anything below that. Believe me, any speaker will try to reproduce any signal you feed it, whether for good or bad.

On a tweeter you usually want to be well above their rated low point or they're not going to last long. Perhaps list the speakers you want to use, list or provide links to their operating parameters, and we'll figure out what will work.

Dukk

The low pass portion of a crossover for a sub is a low pass crossover.

A bandpass crossover is used on a midrange where you both high pass and low pass it, creating a frequency band that it plays in.

BigRedGuy

iTrader: (11)

OK Freshie, time to come clean here ....what the heck are you trying to do with these drivers? Is this for your van?

Details details bro....size, frequency range they are designed for and how many per side please....otherwise we could be scratching our collective heads for a while....

The size of the caps will depend on how much power you are trying to push thru them, the correctly rated ones for your application shouldn't affect the sound other than eliminating frequencies too low for the driver(s) to play.

HTH

fresh1

iTrader: (2)

BRG, Dukk, I'm happy you guys stumbled upon this thread before I did something stupid lol.

I'm at work now and can't remember the speakers exactly, but when I get home I will definitely post up the combinations. As for the vehicle they are going in, the customer has requested it stay top secret until it is complete. My van is on its way out anyways, so I'm not planning anything until I solve that issue if it helps Bill hahaha.

Dukk

This is for someone else? For sure you need to let us know everything you are putting in then. Blowing up your own sucks, blowing up someone elses sucks bigtime..

fresh1

iTrader: (2)

Lol thanks for the heads up, but they were given fair warning, I am just trying to make sure all things go smoothly.

Now, because this person saw my AB subs and was imressed they went onto their site, and came up with combination number one:

an 8 ohm SQ-65CB paired with two SQ-05T's, or one 65CB with one 05T and one SQ 5.25 (because I thought two tweeters would be too much for the ears) to get a total of 4 ohms, and then multiplied by 4 to get 1 ohm as that is the impedance he's planning to send to his amp.

This is of course depending on the price of the speakers, and if they prove to be too much he will resort to a similar combination of speakers from Parts Express or a local "audiophile" type of store. I went in there once and the owner was selling some no name 18'' woofer for 100 bucks, and the proposed customer likes the no name stuff when it sounds good. I think he's going there some time this weekend to see what they have and at what prices.

Edit: Sorry, just talked him into a another possoble combo, if going with the AB stuff it will be either 4 65CBs, 4 5.25s and 4 05T for a 1 ohm final load, or 6 65CBs and 4 05Ts for the 1 ohm. It will be one of these two combinations, or something similar from Parts Express. If not those then it will probably be a bunch of coaxials, but he thinks components will sound better which is why they cost more.

n0catchyname

My highs for my computer stereo are wired that way, no problems. 3 highs (2 @ 4ohm, 1 @ 8ohm, same idea as you were saying) are wired to 4 ohms, 2 mids (both 8 ohm) are wired to 4 ohms (on a 2-way passive crossover), subs (2 @ 8ohm) are wired (with highs and mids) in on a 2-way active, works well for what I use it for. Creative planning to use what you got.

fresh1

iTrader: (2)

Yeah the biggest thing was whether or not to use a crossover for the mids and highs, his subs are gonna use the LPF on the amp and deck, which is what he's done so far, so thats not going to an issue.

But now that we know a crossover will definitely be in the mix, the next thing we're trying to figure out is active or passive. I said passive because its a one time thing, but I guess the flexibility of an active network is appealing. But yeah, I'd still like to try and work on the passive anyways, if anything I'll just consider it a new thing I understand.

n0catchyname

With a passive crossover you need to worry more about matching impedences & wattage handling, the number of speakers is more or less irrelavent. With an active crossover you need multiple amps so impedences and wattage don't really matter in the same way.

Mr.DatSubishi

A bandpass crossover is used on a midrange where you both high pass and low pass it, creating a frequency band that it plays in.[/QUOTE]

I am high passing a set of components and subs/mid drivers on the same 2 channels. I will be running a coil to bandpass the subs and playing the components up to roll off. I will probably band pass the subs @ 60hz and 400.