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Thread: How important is preout voltages? |
    
Bronze Member Username: Themax96se
USA
Post Number: 55
Registered: Jan-05
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| Posted on Monday, January 17, 2005 - 06:51 pm: |
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When looking for a head unit, how important is preout voltage when hooking up to amps? What else is there to look for in purchasing HU's with an amp set up in mind? |
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Gold Member Username: Carguy
Post Number: 1157
Registered: Nov-04
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| Posted on Thursday, January 20, 2005 - 10:18 am: |
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Look for the features you want/need first. Do you need dvd? MP3? Surround sound? Most HU's will give 4v preouts and that's fine with most amps. However, some will give 6v - 8v. Those cost a lot more. Higher volts will give cleaner sound. |
Bronze Member Username: Rds11
Louisville,
Kentucky
Post Number: 58
Registered: Nov-04
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| Posted on Thursday, January 20, 2005 - 03:27 pm: |
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Like Isaac said it makes a cleaner signal to the amp if the voltage is higher. Some of the low - mid grade H.U.s have 2v preamp outputs as well.
One more thing, Make sure your amp can handle whatever voltage you are putting in it. For example, A certain MTX amp can only take up to 5 volts of input power. So an H.U. with a 6 Volt rating is too much. Im not sure if there is a way to lower the voltage or not on an HU. Maybe sum1 else knos |
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