Who makes the stock Si stereo?
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Great. Here's what I found so far:
I have experimented with the unit for several months. I know the unit has 5 channels of full range flat signals. Alpine Imprint unit's AntEQ verified the output. Don't know if they are balanced. At volume 40 (treble 0 bass 0) the output is 3.25V each across the + and - line. All processing, crossover, EQ, etc. are done at the OEM amplifier behind passenger's kick panel. I have an amp with the preamp level and the sound is comparable to some mid level aftermarket CD player.
Another thing is the unit can be directly swapped into EX sedan, which is also a Clarion unit but with internal amp. But then need to tap the outputs to aftermarket amplifier, or fabricate a harness to interface stock harness and the radio, which I have done to my EX sedan. I belive that it will not plug into the panel of the Alpine head unit (LX, HF, Hybrid, etc.). The unit does not have built-in anti-pop circuit (the output is not mute, so whenever there's a change in voltage a pop will be sent through the output line). I believe the mute ciruit is in the amplifier. So when using the unit with aftermarket amp one has to be sure that the amp won't turn on before the car is at ACC/ON position. The unit will send out 12V on the remote wire as soon as the key is turned, due to the bluetooth integration. Therefore it has no difference if I tap into ignition or use the remote wire.
Keep me informed on what you have found.
I have experimented with the unit for several months. I know the unit has 5 channels of full range flat signals. Alpine Imprint unit's AntEQ verified the output. Don't know if they are balanced. At volume 40 (treble 0 bass 0) the output is 3.25V each across the + and - line. All processing, crossover, EQ, etc. are done at the OEM amplifier behind passenger's kick panel. I have an amp with the preamp level and the sound is comparable to some mid level aftermarket CD player.
Another thing is the unit can be directly swapped into EX sedan, which is also a Clarion unit but with internal amp. But then need to tap the outputs to aftermarket amplifier, or fabricate a harness to interface stock harness and the radio, which I have done to my EX sedan. I belive that it will not plug into the panel of the Alpine head unit (LX, HF, Hybrid, etc.). The unit does not have built-in anti-pop circuit (the output is not mute, so whenever there's a change in voltage a pop will be sent through the output line). I believe the mute ciruit is in the amplifier. So when using the unit with aftermarket amp one has to be sure that the amp won't turn on before the car is at ACC/ON position. The unit will send out 12V on the remote wire as soon as the key is turned, due to the bluetooth integration. Therefore it has no difference if I tap into ignition or use the remote wire.
Keep me informed on what you have found.
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Does the 2013 Civic EX sedan preamp outputs? Would you describe them?
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