canuckerjay

I'm setting gains right now. My questions are about setting levels for my subs. The amp is a jl audio JX 1000/1D.

This might matter: I'm setting gAins while at 75% volume and also at 75% of the subwoofer level on the HU.

The questions:

I've got the gain three-quarters open. Is that too much? Subs are two 10" Type R in a sealed box. I don't hear distortion, but I've read that it's not good to set the gain too high.

The amp also has a dial for the filter frequency which ranges from 50-200Hz. Manual says "80 is a good place to start" but I'm at 125 and could go more. What would you recommend setting this at? is there a point that I shouldn't go past?

Finally, three is a bass boost dial that goes from 0-12dB. I haven't turned that up more than a quarter turn. Should I go more on this?

Thanks guys.

An

jstoner22

iTrader: (1)

The filter frequency does just that. It filters out certain frequencies. The higher you turn that up, the more you will start to hear vocals come through the subwoofer. 125 is the absolute maximum I would consider. If you have any kind of decent front stage, there is no reason to have it this high.

I would also stay away from bass boost as much as possible. It is just throwing extra gain on a certain frequency within the amp's passband. It will just put extra strain on the amp and your system and more often than not just sound crappy.

Also, there is no too much or too little on gain, as long as it is set properly. Setting everything at 75% is just a general guideline to get it started.
Remember that you want the gains as low as possible while still maintaining a volume you like (providing that clipping is still at a minimum). You are simply matching the sensitivity of the amps inputs. So if your deck is outputting strong voltage, you can have the sensitivity lower (reducing the amount of amplification needed).