There is a LEVEL adjustment control.. and then the GAIN. Im not sure what the setting of the LEVEL adjustment should be, It goes from 6 all the way to the left and 0.3 all the way to the right, I have this set at 1 as of right now. Where should this knob be set at ?? and my gain goes from 0 to +10dB I have that set to 0 as of right now.. I want the amp to put out its maximum 900 rms at 2 ohms. I have the subs wired at 2 ohms but im not sure if each one is getting the 450rms that i want them to. Please help.. Thanks-
No instruction manual?? Im assuming the level control would be "bass boost" they are usually centered around 40 or 45 hz. How high you have it set would depend on your preference and how boomy you want it to sound. As for the gain setting set it to 0 as you have it now then turn your HU up to about 3/4 voulume and start turning up the gain until you start to hear distortion then back it down just a little. What brand and model of amp is this? What subs are you using?
uhh i think the gain is the knob with the 0.3 - 6.0 and the bass boost is the thing that is 0 - +10b. I have a Sony amp right here next to me and thats exactly what it is. The 0.3 - 6.0 is marked "Level" that is your gain(you can tell because the numbers are followed by a V which is volts). The 0 - +10db is labeled "Low Boost" which is your bass boost. The rest of your knobs should be your "LPF" and "HPF" which are Low pass filters and High pass filters.
Busted.... Here is a note about gain settings..... If you are doing this yourself without the aid of any meter or scope, here is what I recommend.....First thing you need to do is figure out how much gain you can get out of your HU and it still be clean..... Take a CD that is well recorded and stick it in the HU...Turn all amp gains down fully....Now turn the HU volume up untill the sound starts to sound fuzzy or distorted...if you reach that point, take note and then back off a touch untill the sound is clean....Remember that volume setting...that is your max gain out of the HU to stay clean...if you can turn HU up all the way and it stays clean, that is great....Leave the HU on that setting to do the other components, doing each one while you listen for the signal to stay clean..Work your way down the signal chain with your amps last.....When you do your amps, it will be loud....Listen carefully for distortion.....If you maximize all the gain settings to be at their highest level, then you should be able to get the HU to that level and the sound stay clean....The idea is to set all the links in the chain to break at the same time and keep the max level just under that....This will give you the best SQ..... If you are going for SPL, then do everything the same except for play it by ear on the amps...You may get away with going a little higher....Just remember this... The idea is to maximize your S/N ratio....If you put too much gain into the signal it will be distortion or clipping...If one component clips before all the others, it still is a clipped signal...That can blow speakers..... The signal is basically an electric signal...Your speaker is going to try to reproduce that signal in whatever manor it receives it....A clean signal is linear and that will make the speaker move in and out keeping the voice coil and motor structure moving straight (linear) when the signal is clipped it will appear on a scope as squiggly....The speaker will try to reproduce that and it can move in a non-linear way....Since the electrical part of the speaker is made with very close tolerances, when it tries to reproduce a clipped signal it will move in a way that is not straight, possibly causing damage to the speakers voice coil, motor structure (read this....blown speaker).... So getting the most signal (gain) without distortion or clipping will give you the best sound and signal for your entire system.... basically the gain on the amp is used to match the amp to the gain coming in so that amp reaches full potential when that gain is at full potential...if you keep the signal clean you should never blow a speaker, unless you send 1,000 watts rms into a driver rated to handle 50 watts rms max..... Willy
Whatever preout voltage your HU puts out (if there is nothing between the HU and amp) should be what you set the amp for to get you in the ballpark... For example if the HU has 2 volt preout you would set your amp gain to that amount and that should get you close. If yours goes from .3-6v then in the middle of that should be around 2v. My Blaupunkt has the .3 and 6.0 v and it has an indicator at dead center labeled 2v.... You are basically trying to match the input stage of the amp to the output stage of the previous component (most likely the HU) Willy
