Tweater,Midrange,Midbase + a Sub!

**durwood** · 03-03-2007, 11:14 AM

In a passive system, the impedance is = to the imdeance of the drivers (8 ohms in this case). He does have a 4 ohm tweeter, but it's more dependent on the woofers rather than the tweeters.

Active Filtering

**XC-C30** · 03-03-2007, 11:33 AM

Oh, so that's were I missed out. I thought it counted up.... So I came to a load of 2.666 for the frontstage, and 4Ohm for the rear, which would give 1.5Ohm load, probably narrowed down to 2Ohm due to the resistance of the filter....

**scott_fx** · 03-03-2007, 12:46 PM

ic, as long as the drivers aren't playing the same frequency the final imp. load will be 8 ohms (same as the drivers)

BUT.... if the x-overs are designed for a 4 ohms speaker the x-over points will be altered if he's using an 8 ohm speaker and vise versa.

I think the op will be a lot better off spending the money on a predesigned component speaker package rather then trying to make your own. I'm probably way more into audio then he is and I wouldn't tackle this project.... I wouldn't even tackle a 3-way active project (going 2-way for my first go around)

**XC-C30** · 03-03-2007, 12:48 PM

yeah, I'm going 2-way active first too, before tackling a 3-way project.

learning everyday

**ijwalla** · 03-03-2007, 03:04 PM

Originally Posted by scott_fx

I'm probably way more into audio then this he is and I wouldn't tackle this project.... I wouldn't even tackle a 3-way active project (going 2-way for my first go around)

Oh man, I was gona follow the approach durwood had drawn out for me, especially with those nicely drawn out diagrams of his.

But I think scott_fx may have brought me back to my senses, I really dont know much about this stuff.

So... to make things a little easier on myself, how would a boom box sound?

Ah well, whats the difference between durwood suggestion, and a 2-way / 3-way active project you guys are working on?

**XC-C30** · 03-03-2007, 03:37 PM

ok, not to diss you or anything..... But if you don't know the difference between active and passive systems, don't even start to THINK about using an active system! I'd go with a nice predesigned set, as scott sugested. And meanwhile you could read up on active systems, in order to change from passive to active at a later stage.

**ijwalla** · 03-03-2007, 06:13 PM

Originally Posted by IC-C30

ok, not to diss you or anything..... But if you don't know the difference between active and passive systems, don't even start to THINK about using an active system! I'd go with a nice predesigned set, as scott sugested. And meanwhile you could read up on active systems, in order to change from passive to active at a later stage.

I know the difference between active & passive, I just dont understand the 2-way / 3-way portion you were on about...

**scott_fx** · 03-03-2007, 06:17 PM

2 ways use a woofer/tweet combo while a 3way uses a woofer/mid/tweet

**durwood** · 03-05-2007, 08:18 AM

Originally Posted by scott_fx

I think the op will be a lot better off spending the money on a predesigned component speaker package rather then trying to make your own. I'm probably way more into audio then he is and I wouldn't tackle this project.... I wouldn't even tackle a 3-way active project (going 2-way for my first go around)

YA good point. I started thinking about it later and it would cost more money and create more headaches than just buying a set of components. I was just pointing out that it could be done, although I should have stressed there were better ways.

**scott_fx** · 03-05-2007, 01:12 PM

yeah, i do the same thing durwood. i focus on the question that was asked and sometimes overlook alternative solutions that may be better.

Thread: Tweater,Midrange,Midbase + a Sub!

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