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Thread: Pre-amp output |
    
New member Username: Ukw10
Post Number: 7
Registered: 12-2003
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| Posted on Tuesday, December 16, 2003 - 06:07 pm: |
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What is Pre-amp output?? Could Someone explain to me. Do I need this to install amp for subs??
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New member Username: Glasswolf
Post Number: 99
Registered: 12-2003
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| Posted on Tuesday, December 16, 2003 - 06:29 pm: |
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pre-amp outputs are RCA line connections that are used to connect between a head unit and external amplifiers.
you want at least one set of these on any radio you plan to use with an amplifier.
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New member Username: Ukw10
Post Number: 11
Registered: 12-2003
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| Posted on Tuesday, December 16, 2003 - 07:08 pm: |
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Why does Head unit has different preamp outputs like Front, Rear and Sub |
New member Username: Glasswolf
Post Number: 106
Registered: 12-2003
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| Posted on Tuesday, December 16, 2003 - 10:50 pm: |
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for multiple amplifier setups.
front speakers (channels), rear speakers, and subwoofers.
having separate channels allows you to have control over balance, fader, and sub output as well as crossover and EQ in better head units like Alpine or Eclipse.
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New member Username: Ukw10
Post Number: 14
Registered: 12-2003
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| Posted on Wednesday, December 17, 2003 - 10:36 pm: |
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If you want to put amplifier for subwoofers but Head unit only has preamp output for front and rear, can i just connect RCA to fron or rear output?? |
New member Username: Glasswolf
Post Number: 133
Registered: 12-2003
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| Posted on Thursday, December 18, 2003 - 01:34 am: |
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yes. just be sure the amplifier has a built in low-pass crossover so that only low frequencies go to the amp, and then to the subs.
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