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<blockquote data-quote="Kangaroux" data-source="post: 7427937" data-attributes="member: 628495">When the vehicle is running it pulls from the battery, which in turn is charged by the alternator. The primary functions of starting the vehicle and providing power while it&#039;s off are true, but when you run into car audio you have the additional factor of having to support the extra current draw from amplifiers.Line drivers&#039; main purpose is to take a high level input, i.e. tapping into the wire for the rear speakers in your car, and then converting that to a usable pair of RCA&#039;s for amps. A headunit will work just fine if it&#039;s &quot;only&quot; pushing 2v on the preamp. The only difference in 2v and 6v is that you will have to turn your gain higher or lower. In other words, there is no point in boosting the headunit&#039;s preout voltage when you set the amp for it anyways ---------- Post added at 01:33 AM ---------- Previous post was at 01:33 AM ---------- When the vehicle is running it pulls from the battery, which in turn is charged by the alternator. The primary functions of starting the vehicle and providing power while it&#039;s off are true, but when you run into car audio you have the additional factor of having to support the extra current draw from amplifiers.Line drivers&#039; main purpose is to take a high level input, i.e. tapping into the wire for the rear speakers in your car, and then converting that to a usable pair of RCA&#039;s for amps. A headunit will work just fine if it&#039;s &quot;only&quot; pushing 2v on the preamp. The only difference in 2v and 6v is that you will have to turn your gain higher or lower. In other words, there is no point in boosting the headunit&#039;s preout voltage when you set the amp for it anyways</blockquote>

[QUOTE="Kangaroux, post: 7427937, member: 628495"] When the vehicle is running it pulls from the battery, which in turn is charged by the alternator. The primary functions of starting the vehicle and providing power while it's off are true, but when you run into car audio you have the additional factor of having to support the extra current draw from amplifiers. Line drivers' main purpose is to take a high level input, i.e. tapping into the wire for the rear speakers in your car, and then converting that to a usable pair of RCA's for amps. A headunit will work just fine if it's "only" pushing 2v on the preamp. The only difference in 2v and 6v is that you will have to turn your gain higher or lower. In other words, there is no point in boosting the headunit's preout voltage when you set the amp for it anyways [COLOR=Silver] [/COLOR] [COLOR=Silver][SIZE=8px]---------- Post added at 01:33 AM ---------- Previous post was at 01:33 AM ----------[/SIZE][/COLOR][SIZE=8px][/SIZE] [COLOR=Silver] [/COLOR] When the vehicle is running it pulls from the battery, which in turn is charged by the alternator. The primary functions of starting the vehicle and providing power while it's off are true, but when you run into car audio you have the additional factor of having to support the extra current draw from amplifiers. Line drivers' main purpose is to take a high level input, i.e. tapping into the wire for the rear speakers in your car, and then converting that to a usable pair of RCA's for amps. A headunit will work just fine if it's "only" pushing 2v on the preamp. The only difference in 2v and 6v is that you will have to turn your gain higher or lower. In other words, there is no point in boosting the headunit's preout voltage when you set the amp for it anyways [/QUOTE]

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