IF THE WOOFERS HAVE 2 VOC.COIL EACH HOW DO YOU CONNECT WITH THE AMP THAT HAS ONE CHANNEL WITH TWO + AND TWO -.
it depends on the load you want to present to the amp.
un 12, 2009
- If woofers are 2 coil, then you definately need to know the impedance of the coils (are they dual 2 ohm, or dual 4 ohm?).
For dual 4 ohm speakers you will only be able to acheive a summed load of 1 or 4 ohms.
If your amp can handle 1 ohm, then connect this way:
1 ohm: Connect both the positives and the negatives together on each speaker. This puts them in paralell which will result in a 2 ohm load per speaker. After you connect the two 2 ohm loads to the amp, it will see 1 ohm as it's load. If your amp can handle this, this is usually the lowest configuration capable by consumer stuff, (if you are not doing competition or some crazy thing), and few amps are rated for 1 ohm so it's not really recommended and may heat up or blow your amp.
4 ohm: Connect one negative to one positive terminal on one speaker. Drive the other open terminals with the amp. This places coils in series and results in an 8 ohm load per speaker. After connecting both speakers to the amp, the amp will see a 4 ohm load.
In both cases, the rates power of the amp (at that load) will be divided equally between the speakers.
Jun 12, 2009
- For dual 2 ohm speakers, the only loads you can achieve are .5 ohm (1/2 ohm), and 2 ohm.
The connections are the same as above, and this results in:
...If coils for each speaker are wired in paralell, the results are 1 ohm per speaker, and after connection, the amp sees 1/2 an ohm. (.5 ohm)
...If coils are wired in series, the result is 4 ohms per speaker, and the amp will see 2 ohms after both are connected.
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