Search around. You'll find a lot on how to set amplifier controls.
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Stereo/Mono Switch mono
Remote Gain Turn on if your using a remote
Lowpass Slope Switch probably 12db mono
Lowpass Crossover On, no boost
Lowpass Frequency Adjustment (around 80hz
Input Sensitivity set to match head unit rca output voltage
Highpass Crossover OFF
Stereo/Mono Switch mono
Remote Gain Turn on if your using a remote
Lowpass Slope Switch probably 12db mono
Lowpass Crossover On, no boost
Lowpass Frequency Adjustment (around 80hz
Input Sensitivity set to match head unit rca output voltage
Highpass Crossover OFF
- Thread Starter
- #4
Awesome dude! Thank you guys so much!
your welcome , i would still do some reading up on the amp setting tutorials like DoesDad suggested.
its kinda pointless setting something when you dont know the effect ya know what i mean?
- Thread Starter
- #7
A little bit. But I'll try adjust the controls to what you originally said
The Q-Tune is no doubt the oddest of all. It's specific to Boston Acoustic amps. Basically, when you have a high pass filter enabled, the Q-Tune setting of 0.707 makes the high pass filter behave like that on any other amp. This is a good starting point. The settings above 0.707 give a slight boost at around the high pass crossover frequency. The idea is to boost low frequencies if your system is lacking. Think of basically bringing a sealed box subwoofer low end extension closer to that of a ported box. I wouldn't use this with a ported box subwoofer. I also wouldn't use this with a sealed box subwoofer if it has relatively little excursion potential. I normally prefer to turn off the high pass (subwoofer) filter completely with a sealed box and then adjust EQ on the head unit if necessary.
Take a look at this picture:
http://pasmag.com/images/stories/12_future/Boston-GTA400M-11.10-web-images/q-tune_opt.jpeg
- Thread Starter
- #9
Yeah that makes sense. Awesome, thanks!
- Thread Starter
- #10
I've got another question for you guys. I'm assuming that when it's in Stereo mode, it's giving a signal to both positives and negatives in both channels -- and when it's in Mono mode it's only giving the positive in channel 1 and the negative in channel 2 power (so I can bridge from there in Mono mode)?
I also want to be clarified on how the amp knows whether there's an impedance of 4 ohms or 2 ohms. Because depending on the impedance, the amp gives out a different wattage rating (400w @ 4 ohms and 600w @ 2 ohms). I want the 4 ohm impedance because that's what my single subwoofer calls for. Does the amp automatically know to put out 400w @ 4 ohms when bridged in Mono mode?
Thank you all so much for the help!
I also want to be clarified on how the amp knows whether there's an impedance of 4 ohms or 2 ohms. Because depending on the impedance, the amp gives out a different wattage rating (400w @ 4 ohms and 600w @ 2 ohms). I want the 4 ohm impedance because that's what my single subwoofer calls for. Does the amp automatically know to put out 400w @ 4 ohms when bridged in Mono mode?
Thank you all so much for the help!
- Thread Starter
- #11
Anyone? ^^^
The way the amp "knows" what resistance to run at depend on what kind of voice coil your sub has and how you wire it. Svc 4 ohm it's almost impossible to screw up. Just check and see if you have svc 2ohm/4ohm vs dvc 1ohm/2ohm/4ohm and wire it to a 4 ohm load.
The impedance that the amplifier will see depends on how you wire the subwoofer. Indeed, how have you wired your subwoofer, may I ask?
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