Hooking up component speakers to an amp.

[Ncascone]

Hey,

I recently purchased a set of Kenwood KFC709PS component speakers. I set them up in my 2006 scion tc. The way they are setup, the tweeters lines have built in crossovers, the mid/low speakers do not. How would I go about hooking up an amp to these? I read somewhere I can attach the amp directly to the headunit?

The speakers installed the same as this

with the exception of the fact that the tweeter lines I have have passive crossovers on them.
I'm very car audio ignorant, but am learning and would like to know how I would go about doing this. Any help with this would be much appreciated.

Thanks!

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[Umbra]

Hey,
I recently purchased a set of Kenwood KFC709PS component speakers. I set them up in my 2006 scion tc. The way they are setup, the tweeters lines have built in crossovers, the mid/low speakers do not. How would I go about hooking up an amp to these? I read somewhere I can attach the amp directly to the headunit?

The speakers installed the same as this

The wires with the built-in connect the tweeters to the woofers. You can use the second set of terminals on the woofer to accomplish this. The crossover is really just a capacitor that filters out the low end before it reaches the tweeter. You'd still probably want to set a high pass filter on the radio or amp (something like 60-100Hz) to keep the sub bass from these speakers.

If you have an aftermarket head unit and amp you can run RCA cables to get the signal from the HU to the amp. Then run speaker wires from the amp to each speaker, You'll need power wiring (thick wire from bat+ to amp and another bolted to unpainted chassis for ground), plus a remote wire so the amp turns on with the HU. If you don't have a HU with RCA outs, you can use a line output converter to tap into the speaker wires somewhere and use that signal.

 

[Ncascone]

The wires with the built-in connect the tweeters to the woofers. You can use the second set of terminals on the woofer to accomplish this. The crossover is really just a capacitor that filters out the low end before it reaches the tweeter. You'd still probably want to set a high pass filter on the radio or amp (something like 60-100Hz) to keep the sub bass from these speakers.
If you have an aftermarket head unit and amp you can run RCA cables to get the signal from the HU to the amp. Then run speaker wires from the amp to each speaker, You'll need power wiring (thick wire from bat+ to amp and another bolted to unpainted chassis for ground), plus a remote wire so the amp turns on with the HU. If you don't have a HU with RCA outs, you can use a line output converter to tap into the speaker wires somewhere and use that signal.

I don't remember seeing a second set of terminals on the woofers and there was a second set of wires in the door panel for the tweeter. This is my dilemma. I hope I'm explaining this ok.

Scratch that if it doesn't make sense.

Are the speaker wires running from the amp meant to replace the wires I had running from my door panel to the speaker originally?

 

[trumpet 5,000+ posts]

I don't remember seeing a second set of terminals on the woofers and there was a second set of wires in the door panel for the tweeter.

Compare your speakers to the pictures shown here: Kenwood KFC-P709PS Performance Series 6-3/4" component speaker system — also fits 6-1/2" openings at Crutchfield.com

There should be 4 tabs to connect the wires. One pair of tabs is for the wire coming from the amplifier, and the other pair of tabs is for the tweeter wires.

 

[Ncascone]

Ah!!! Let me check when I get home. I spliced the tweeter wires too so its a good thing I ordered some female disconnects. So the signal from the amp sends out the audio to the speakers? I currently have the tweeters spliced to the wires in the door panel. (where the audio signal is currently coming from)