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Old 2nd October 2007, 06:55 PM   #1
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Default Need some help on speaker config

Ok started thinking about what I have and what I may get.

1) I have an amp that currently runs 6x9's w/mids. This amp is 4 ohm stable.

2) I also have a truck box with each compartment having 1 sub and 1 tweeter. They are currently wired in parallel.


How does a tweeter affect ohm values? The tweeter says 4-8 ohm impedance. If I leave the current config for the truck box will the total impedance be 2 ohms or 4 ohms (sort of confused on this since they say tweet are dynamic)?

Since I am in the market for a new amp to run the subs - should I focus on the 2 ohm aspect which gets you more power, or is it a moot point with the tweeter in parallel, and just look at the 4 ohm values?

If the tweeter does not affect overall ohms could I wire the tweeter to my 6x9's in such a way that I will not blow the amp (amp is 4 ohm stable)?


Thanks!
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Old 2nd October 2007, 07:32 PM   #2
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OK, I think I figuered it out. Would this work?

I have 2 6x9's (4 ohms) and 2 bullet tweeters (4-8 ohms). The amp, as I mentioned is 4 ohm stable. Thanks!



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Old 2nd October 2007, 07:56 PM   #3
Did it Himself
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That won't work. It will either blow the tweeters or just produce treble if the tweeters have inbuilt crossover.
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Old 2nd October 2007, 07:58 PM   #4
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Stupid question but why won't that work, if the bullet tweeter says 4-8 ohms? The only crossover I can see is the frequency cap on the outside. Thanks!
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Old 2nd October 2007, 08:36 PM   #5
Flyin11 is offline Flyin11  United States
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Not sure you can do it into a bridged mode but if you have a 2 channel amp and want to keep a 4ohm load (Not so sure on adding in the tweeters and stuff but this is for the subs) I found this on Crutchfield's site...Also depends on if you have Single Voice Coil or Dual Voice Coil subs:

http://www.crutchfield.com/learningc...F8%2Dohm%5F2ch

More wiring diagrams:

http://www.crutchfield.com/learningc...rs_wiring.html
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Old 2nd October 2007, 10:26 PM   #6
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OK if you wire tweeters in series and woofers in series, not woofer-tweeter series then it would work. Your diagram was not fully clear to me.
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Old 3rd October 2007, 01:02 AM   #7
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Is your amp 4Ohm Mono stable, or 4Ohm Stereo stable.
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Old 3rd October 2007, 01:03 AM   #8
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Your diagram will work, but you will have no stereo seperation.
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Old 3rd October 2007, 03:21 AM   #9
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Its a two channel amp so I assume its 4 ohm stereo stable. I was talking to someone about this and they said since tweets draw very little system power, that if I wire the 6x9's and the tweets in parallel that the difference would be so minor that the amp would still operate. Is this correct? Thanks!
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Old 3rd October 2007, 02:53 PM   #10
Clipped is offline Clipped  Thailand
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with the way your diagram is layed out, you would be running eveything in mono.

id go with stereo left and right and wire a 6 x9 and a tweeter in parrallel for each channel.

wire to the 6x9 first, then to the tweeter.

2 x 2 ohm stereo is the same as 4 ohm mono.

technically it would represent a 2 ohm load per channel....but the current draw of the tweeters is low enough that it is usually negligible...except in the case of some piezo tweeters.

experiment with different values for the capacitor values for the tweeters also: 2.2uf, 3.3uf, 4.7uf, 5.5uf, 6.7uf
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