How exactly do you do a series wiring? - DFWstangs Forums
 
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post #1 of 16 (permalink) Old 11-03-2001, 10:44 AM Thread Starter
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Question How exactly do you do a series wiring?

I presume it is just the oppoiste of a parallel...right?

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post #2 of 16 (permalink) Old 11-05-2001, 10:12 AM
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Series wiring takes a link from the + to minus - or a minus to a +. This is useful for running DVC speakers w/ 4 ohm voicecoils. You can achieve a 4 ohm mono load (very bass amp friendly for big powerfull amps, also runs cool) by doing this.

[image] c:\speaker [/image]

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post #3 of 16 (permalink) Old 11-05-2001, 10:52 AM
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post #4 of 16 (permalink) Old 11-05-2001, 10:29 PM Thread Starter
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I need a diagram for dash and door speakers. I need to get an 8ohm load from a 2ohm load.

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post #5 of 16 (permalink) Old 11-06-2001, 10:57 AM
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I may be completely backwards on this, but are 8 ohm speakers not home speakers. I dont know of any way to wire an amp to 8 ohm.
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post #6 of 16 (permalink) Old 11-06-2001, 08:26 PM Thread Starter
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With a pair of 4 ohm speakers (on the same channel), you can wire them: 8ohm-series or 2 ohm-parallel. Right?

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post #7 of 16 (permalink) Old 11-07-2001, 06:17 AM
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Quote:
Originally posted by trigen
I may be completely backwards on this, but are 8 ohm speakers not home speakers. I dont know of any way to wire an amp to 8 ohm.
All an 8 ohm load is: is a high rsistance load on the amp.
say you have a 400 watt amp rated at 4 ohms pushing 1 4 ohm speaker. With the rated resistance, that speaker is getting 400w at 4 ohms. Now take that same 4 ohm amp and put an 8 ohm speaker in the 4 ohm speakers place. Now that the resistance is twice as much....(4 vs. 8)....your only gettibg 1/2 the power because the resistance is twice as high. In short, the lower ommage of the speaker, the less resistance, the more power the amp can put out.
Thats why is is soooo desirable to get a 1 or 2 ohm stable amp.
Ex: 1 of my BD1000's are rated at 500w @ 4 ohms. With a dual voce coil 4 ohm speaker, that drops the ohms down to 2 soo the amp is putting out 1000w with1/2 the resistance.

The only thing im confused about is 1 ohm loads. I stay away from these because it tends to make the amp go BOOM-BITCH!
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post #8 of 16 (permalink) Old 11-07-2001, 08:32 PM
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I don't have a diagram but, here goes...

From your amp

connect the left + to the + terminal of your dash speaker

connect the - terminal of your dash speaker to the + terminal of your door speaker

connect the - terminal of your door speaker to the left - of your amp

do the same on the other side

James
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post #9 of 16 (permalink) Old 11-07-2001, 09:26 PM
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Watch out on that low impedence stuff, it takes the right amp to handle it. I seem to remember a few sound stream amps that claimed 1/4 ohm stablilty some years back, so, there out there but be cautious when running low impednce
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post #10 of 16 (permalink) Old 11-07-2001, 09:43 PM Thread Starter
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The new PPI Art Series I got is 2 ohm stable at 2.5v input. So at 4v input it is working way harder than need be. So if I get an 8ohm load in the front, gain goes up on amp.

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post #11 of 16 (permalink) Old 11-07-2001, 10:36 PM
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the wiring I described above will give you an 8 ohm load

James
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post #12 of 16 (permalink) Old 11-09-2001, 07:16 AM
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Some of the old AutoTek stuff was 1/4 ohm stable.
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post #13 of 16 (permalink) Old 11-09-2001, 09:04 AM
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Quote:
Originally posted by trigen
Some of the old AutoTek stuff was 1/4 ohm stable.
I had an all autotek sys back in the day......
Did you like those big bad 333's?
1300w
I had a chance to get 2 for 500 but I pissed it away!
those lil mean machine 44 and 66's were that shit too!
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post #14 of 16 (permalink) Old 11-09-2001, 09:28 PM
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old autotek RULES!!! ive done 2 autotek systems, both of which rocked, not sure what their current stuff does, but he's right about the 333, holy shit what an amp. i had a 44 and a 66 and those both were killer.

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post #15 of 16 (permalink) Old 11-13-2001, 06:18 PM
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Talking series wiring

I have been installing car stereos for 10 years. Here is how you wire in a series! Take the positive on your left speaker and hook it to the negative on the right speaker. Then take the negative from the left and hook it to your amp and the positive from the right side to your amp. The way series works is that you take the impedance of your speakers and add them together when you wire like I have described. For example two 4 ohms equals 8 ohms. Two 8 ohms equals 16 0hms. A 4ohm and a 8 ohm equal 12 ohms. Parallel wiring is not quite the same. When you wire in parralel you take both positives and connect them together and the same with the negatives. But the formula is resistance of left speaker multiplied by impedance of right speaker. You take that total and divide it by the impedance of left speaker plus impedance of right speaker. For example to 8 ohms is 4 ohms but in the same instance accordinng to the formula a 8 ohm with a 4 ohm is 2.6666666. Try the math. Hope I could help!!!!
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post #16 of 16 (permalink) Old 11-13-2001, 07:59 PM
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Remember guys, he is trying to wire a PAIR of dash speakers AND a PAIR of door speakers to one 2 channel amp.

The wiring I described above will give hime an 8ohm stereo load.

He could wire the speakers in parallel and get a 2ohm stereo load, but it sounds like it is wired this way now and he does not like it.

Also note, when you wire two speakers of differing impeadance to the same amp channel (ie...8ohm and 4ohm), the 4ohm speaker will play twice as loud and move twice as fast. This would not cause a problem in this case, but if you were to wire an 8ohm sub and a 4ohm sub parallel, that were sharing the same air space, you would get some bass cancellation at best and perhaps even destroy the speakers.

James

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