Long shot, tuning help with amp...

[PimpinD2]

So just wanted to get some input, as I have never tuned an infinite baffle sub, nor am I really familiar with wetsound products. Though so far I love the way this amp sounds...

System:
(1) WetSound Syn 6 "hybrid" amp
(4) 4 JL Audio m770 marine 7.7" speakers w/ 1" tweeters M770-CCS-CG-WH (100w rms)
(1) JL Audio 10" Marine subwoofer M10IB5-CG-WH (250w rms)

The Wetsound amp is considered hybrid because it has basically 2 power supplies. One which runs channel 1 - 4 and one which runs channels 5 - 6.

The rated specs on the amp in my current setup is:
60w rms x 4 @ 4 ohms (channels 1 - 4 for the JL m770 speakers)
600w x 1 @ 4 ohm (channels 5 - 6 bridged going to the subwoofer)

My issue is that i switch from a sony marine amp which put out something like 140w rms / 300w max to the sub, and this jump to 600 watts is not much louder. I mean don't get me wrong it sounds great, but not like I expected. It seems that I have to turn the gain almost 3/4 of the way up on the 5 /6 channel.

The sub is installed as an infinite baffle setup in the stock location for the boat, is this pretty typical with infinite baffle setups that a large increase in power really does not increase the output by that much due to the install?

Also, the sub is only rated for 250w, and the way the amp is setup now is suppose to out put 600w, so having the turn the gain up so much really doesn't seem to make sense to me, I would have expected the sub to distort at a much lower gain level.

Anyways, he is a picture of how I have my amp tuned to right now. For the gain knobs, the top dot is the lowest setting.

[Chattwake]

Call Justin at wetsounds and ask him this exact question. He can answer you in about .00000002 seconds and will be much more knowledgeable than most of us. I have not tuned a syn6 before, so I'd be guessing. Also, I am not familiar with your sub. I wish I could be more helpful.

[Brit Rider]

Also, bare in mind that twice the power input doesn't equal twice the sound output. Nothing even close.

[PimpinD2]

Well, i hooked the tower speakers to the amp, like i had always planned. They are silly loud. the Sub is running off the sony amp and sounds fine, i think the free air install is just totally different than the box installs im use too..