So what are the benefits of a line driver? I have a Clarion VRX755VD w/ 2volt preouts. With the gains set at 3/4 of the way up I still have to turn the deck's subwoofer gain setting to +3. If I don't turn the deck gain to +3 then the subs won't "max out", even when I reach full volume on the HU. Would a line driver solve this problem? I just don't feel safe turning the gain on the amp all the way up.

Edited January 28, 200817 yr by Captain Kev

it would help. but check and see the input max level for your amp, some are only 4-6 volts input... some are as much as 16

9volts. I'm looking at the PG line driver. It has 8 volt outputs.

I used to swear by them, but they are not always needed. Most solid HU's are 4+ volts now. My initial need was because the length of RCA run in my old SUV. If you are worried about the utmost in output, or want to keep your amp gains down, or want to run a balanced signal and the amp can take it, then they are worth it. Personally I would love to run the Zapco's and Symbilink and have a balanced 16volt signal, but that is very pricey and the sound gains are minimal.

Thanks for the advice. My HU only has 2 volt outputs. I ordered the PG TLD66 line driver which is rated for 8 volts.

Just be smart with your LD gain and amp gain. Listen to your speakers and if you are giving them too much back down on the gains, and you should be fine.