Question about amp amp turn on/off

[fazio93 10+ year member]

hello, i have this amp:

Kenwood KAC-8104D 1000 Watt Class D Mono Power Amplifier(KENKAC8104D) and other affordable Car Amplifiers at 6ave.com.

i believe most that most amps require the blue remote turn-on signal wire to sense when the head unit is on/off so it knows when the amp has to be on/off?

the manual for this amp says that a normal car head unit has a max power of 40W output and that the amp is turned on/off as the unit detects input signal. therefore it is not necessary to connect the power control wire (which is the same as the blue remote cable right?) this is written under the "Speaker level input connections" headline. i'm kind of confused.

here is a link to the manual to help you understand.

http://www.kenwoodusa.com/UserFiles/File/UnitedStates/Consumer/Manuals/kac8104d.pdf

its on page 4

basically i am asking do i need/use the remote turn-on or the speaker level input wire or will the amp detect on/off using the RCA cables alone?\

thanks, nick

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[FIMPALASS 10+ year member]

What it sounds like it is saying to me is that if you use the speaker level inputs you don't need the reomte turn on wire from the head unit. If you use the rca's you need the remote wire.

 

[fazio93 10+ year member]

o yea now i see it. the two diagrams are giving two different scenarios: using the RCA/remote wire or the speaker level input wire which connect to the car speakers.

thanks so much. =]