Preout Voltage
Printed From: the12volt.com
Forum Name: Car Audio
Forum Discription: Car Stereos, Amplifiers, Crossovers, Processors, Speakers, Subwoofers, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=15977
Printed Date: May 19, 2024 at 3:34 PM
Topic: Preout Voltage
Posted By: mark241
Subject: Preout Voltage
Date Posted: July 07, 2003 at 7:27 AM
What is the signifigance of Pre-out Voltage on Head units? What would the diffrerence in spl or sq in a 5Volt preout compared to a 2Volt preout.
Replies:
Posted By: emarald
Date Posted: July 07, 2003 at 7:47 AM
Good question, my current setup has 2volt and i've been thinking of going the 4 volt route to get the amps to pump out more juice, maybe the extra voltage allows for more 'headroom' in an SQ setup, but SPL is what i want so anyone out there- for SPL....2volt ok or 4-8volt preffered?
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I need more power.....
Posted By: bberman1
Date Posted: July 07, 2003 at 9:15 AM
The higher your pre out voltage is the cleaner and more noise free signal is going into your amps etc. Think of it as the signal strength of a radio station. If you have a strong signal the sound is better, but the weaker the signal gets the crappier the sound gets.
Posted By: mark241
Date Posted: July 07, 2003 at 9:30 AM
So would a line amplifier work to increase voltage?
Posted By: bberman1
Date Posted: July 07, 2003 at 9:33 AM
Yes a line driver dose increase the voltage.
Posted By: bberman1
Date Posted: July 07, 2003 at 9:37 AM
You can also use an electronic X over. It will allow you to adjust the frequencies as well as increase your pre out voltage to your amps.
Posted By: mark241
Date Posted: July 07, 2003 at 9:56 AM
Do you know any electronic Xovers that have 3 inputs and 3 outputs because my headunit has 3 preouts and I'd like to maintain the unit control?
Posted By: mark241
Date Posted: July 07, 2003 at 9:59 AM
OTherwise I'd have to buy 3 line drivers, do you know how much each of them usually run for?
Posted By: bberman1
Date Posted: July 07, 2003 at 10:17 AM
You will want a 6 channel (3 inputs and outputs) 2 channels front, 2 rears, and 2 sub. Be sure to stick to a good quality manufacture.
Posted By: mark241
Date Posted: July 07, 2003 at 11:11 AM
How much would a Phoenix Gold Line Driver Run?
Posted By: mark241
Date Posted: July 07, 2003 at 11:12 AM
Cost Wise?
Posted By: magic2
Date Posted: July 07, 2003 at 2:34 PM
Or you can just buy an eclipse head unit 
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