How can I hook up a 4 ohm tweeter along with a 4 ohm coaxial speaker and keep the 4 ohm load?

Question

I purchased a set of 6 3/4" Alpine speakers (4 ohm)for my front doors. Low and behold the tweeters weren't providing enough "tweet" to satisfy. So I purchased a set of Alpine Tweeters (also 4 ohm) to add the front channels. It seems there is noway to just wire it anyway because either scheme would end up in an 8 or 2 ohm load. Please help!!!

Thank you in advance!!

The tweeters came with crossovers built in, btw. They came packaged with as stand alone tweeters. (Alpine SPS1005)

Ohhh I just check out my amp and it lists 2 ohm load power ratings. Now I wonder if I should just get another set of tweets and do the rears the same way? Will my coaxial speakers be able to handle the 2 ohm load or does that just matter with the amp?

Answer 1

Just use a passive high-pass crossover (which you should be doing with any tweeter system anyway) and wire the speakers in parallel. A crossover presents a very high impedance to frequencies below its crossover point, so for those frequencies, the total impedance remains close to the 4 ohms of the 6 3/4" speaker. Technically the higher frequencies above the crossover point will still present a 2-ohm load, but a relatively small amount of power is required for the high frequency drivers, so it won't cause a problem for the head unit.

To sum up, as long as you use the right crossover with the tweeters, you shouldn't run into any impedance problems with the head unit.

Answer 2

Impedance is measured at a certain frequency. Is there a crossover on the tweeter? If so, the load will drop to 2 ohms above the crossover frequency, and remain at 4 below it. You'll probably be alright with this setup, but I'd be careful. A set of component speakers would be a much better investment, then you could have a nominal 4 ohm load at all frequencies

Answer 3

2 Ohm Tweeters

Answer 4

that's greater useful to do it that way than any incorrect way around (hooking up 4-ohm audio gadget to an amp rated at 8 ohms). The speaker impedance is the quantity of resistance (style of) to the audio sign that the speaker places on the output of the amplifier. the better the impedance the amplifier sees, the decrease the present that's going to force out of the amplifier. audio gadget convert present day for the duration of the voice coils into electromagnetic means. The greater present day the coils get, the greater magnetism they have and the extra the speaker cones flow. So, they flow greater air and, as a result, have greater quantity. If the impedance score for the audio gadget is bigger than the amplifier's score, the amplifier will placed out much less present day and the speaker quantity would be under for decrease impedance audio gadget. And, that's probably no longer an operational situation. yet, if the impedance of the audio gadget is under the amplifier is rated for, the present would be severe, and the amplifier or the audio gadget themselves can burn out.

Answer 5

JBL and Infinity are now selling 2ohm door speakers, to get the most out of the amps.
They claim they are fine for head units. -Independant testing verifies this is true.
Use the included crossovers for the tweeters and you'll be fine.

Good Luck!