r33 Posted May 17, 2011 Report Share Posted May 17, 2011 I have just put a cheap 4 channel amp in to power my speakers because my other one died of old age. Now every amp I have used usually had a gain control knob. This amp is just a cheap one and is 4x45rms and I set the level to about 75% so my music is at a good volume. I was just wondering if level and gain was the same thing, Or does this mean my amp is continuously running 4x45 and the level has nothing to do with power output? http://www.audiolinepro.com/azx4800.html That is the amp with diagrams there. I was just unsure if using the amp at 75% level was ok. Also I connected a 600w Cadence Monoblock amp which gets its audio from the 4 channel and the gain is set at around 90% to get decent bass out of the 600w Cadence sub. My old 4 channel was a 4x200 and the monoblocks gain only had to be set to around 60% for the ammount of bass im getting now. Quote Link to comment Share on other sites More sharing options...
Supercharged DCs Posted May 17, 2011 Report Share Posted May 17, 2011 Your more than likely sending a clipped signal to all of your speakers. Set the gains with an Oscope, because you should never have to turn it up to 90%. Your going to blow your shit soon... Quote Bassless once again. Can't seem to keep a system for more than a few weeks Saving for a '06 Nissan 350z, look for build around June 2012. Link to comment Share on other sites More sharing options...
r33 Posted May 17, 2011 Author Report Share Posted May 17, 2011 Would I be better off setting the input level lower on the mono and switching Bass EQ on the amp to 6db instead of flat? Quote Link to comment Share on other sites More sharing options...
Supercharged DCs Posted May 17, 2011 Report Share Posted May 17, 2011 Don't use bass boost, set your gains with an Oscope so your speakers are getting a good clean signal. I can't tell you what to set your gains at because I'm not running what you are, but an Oscope will tell you if your sending a clipped signal or not. Quote Bassless once again. Can't seem to keep a system for more than a few weeks Saving for a '06 Nissan 350z, look for build around June 2012. Link to comment Share on other sites More sharing options...
r33 Posted May 17, 2011 Author Report Share Posted May 17, 2011 I dont think ill be able to find an oscope anywhere. Would it be better to send the audio input to the monoblock or 4 channel first then output it to the other. All the audio gear is just cheap stuff. Head unit only has one pre out so I have to split the signal to the amps, Does this half the signal so whichever amp is getting audio from the other is recieving a weakened signal meaning the amps level has to be turned up more? Quote Link to comment Share on other sites More sharing options...
Skullz Posted May 17, 2011 Report Share Posted May 17, 2011 Well that has an input voltage of 9v so you'll want to know what the pre-out voltage is coming out of the H/U and turn it to as close to where you think the voltage on the gain would be, so if you have 4v pre-outs then a little past the 12 o'clock position would be about right. If you have access to an o'scope get a 1khz tone and play that to set the gain on the amp. For the mono amp if you have a sub output on the H/U you can adjust i would do that over using any other adjustments. Quote 01 Ford focus ZX3 Pioneer AVH-X491BHS PPI PC 4800.2 Morel Maximo 6.5" x2 Link to comment Share on other sites More sharing options...
r33 Posted May 17, 2011 Author Report Share Posted May 17, 2011 (edited) All audio is run through the 4 channel amp which outputs to the monoblock. Ill have to mess around with it tomorrow, Also with the monoblock, turning the gain towards 250mv raises the volume and turning towards 8v lowers it. Not sure if thats normal or not. Also, On my cd player would it be better to set the amp lower and turn the volume up higher on the cd player? Right now I am getting my music loud by around 18, Maximum volume is 40 Edited May 17, 2011 by r33 Quote Link to comment Share on other sites More sharing options...
r33 Posted May 17, 2011 Author Report Share Posted May 17, 2011 I just had a mess around with both amps and somehow now I am getting loud volume from lowering the 4 channels levels to about 30% and monoblock to around 50%. Not sure how this is happening but it seems good lol. Quote Link to comment Share on other sites More sharing options...
Skullz Posted May 17, 2011 Report Share Posted May 17, 2011 As long as its playing cleanly you should be fine till you start to replace that with better equipment. Quote 01 Ford focus ZX3 Pioneer AVH-X491BHS PPI PC 4800.2 Morel Maximo 6.5" x2 Link to comment Share on other sites More sharing options...
Purplehaze Posted May 17, 2011 Report Share Posted May 17, 2011 I just had a mess around with both amps and somehow now I am getting loud volume from lowering the 4 channels levels to about 30% and monoblock to around 50%. Not sure how this is happening but it seems good lol. You just learned a valuable lesson: Sometimes less is better! Less clipping = more jamming! Quote Kickin' Cruiser Seller Feedback Stage 3 Dash, Door Panels,4th Order wall 4 - 15'son a DC 5.0K 2 DC 5.0K'sSolo X 15 (v.2) Sub Build Link to comment Share on other sites More sharing options...
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