Sundown X-15 Question

[clemson27]

Currently have a Sundown X-15 v1 dual 2 ohm in a 4 cu ft box tuned to 32hz powered by an Audiopipe Apmi 2k wired at 1ohm. My question is where should I set the Subsonic filter, and the Low pass filter at? Also, I have an oscilloscope to tune the amp, but Im not sure exactly how to tune it since I have a Rockford Fosgate Balanced Line Driver that has a gain knob on it too. Any help would be appreciated.

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[Jeffdachef 5,000+ posts]

Currently have a Sundown X-15 v1 dual 2 ohm in a 4 cu ft box tuned to 32hz powered by an Audiopipe Apmi 2k wired at 1ohm. My question is where should I set the Subsonic filter, and the Low pass filter at? Also, I have an oscilloscope to tune the amp, but Im not sure exactly how to tune it since I have a Rockford Fosgate Balanced Line Driver that has a gain knob on it too. Any help would be appreciated.

Put the oscope to the head unit first on a 40hz sine wave. raise the head unit volume high up the max it can go before distorting. Then go to the line driver, raise it to the max it can go without distorting. Then go to the amp and up the gain. If its already distorting with the gain at 0 then you need to lower your line driver until its a clean wave at 0 gain.

 

[macsdad 10+ year member]

Currently have a Sundown X-15 v1 dual 2 ohm in a 4 cu ft box tuned to 32hz powered by an Audiopipe Apmi 2k wired at 1ohm. My question is where should I set the Subsonic filter, and the Low pass filter at? Also, I have an oscilloscope to tune the amp, but Im not sure exactly how to tune it since I have a Rockford Fosgate Balanced Line Driver that has a gain knob on it too. Any help would be appreciated.

Subsonic at around 25hrtz, low pass usually between 80 and 100hrtz.

 

[kr15 5,000+ posts]

I dont use ssf

 

[kr15 5,000+ posts]

 

[Austin175 10+ year member]

Look up exocontralto on YouTube he has a good video on how to use a scope to set gains.

 

[Boomin_tahoe 5,000+ posts]

This is more directly towards an amp question.....had me fooled.

 

[Tastypandas]

Would love to hear what you come up with. My speakers are clipping like you wouldn't believe at loud volumes. Running a x series 12 in my Mustang with a Skar 75.4 which I believe is a POS but im not sure

 

[Hertz Mafia]

Would love to hear what you come up with. My speakers are clipping like you wouldn't believe at loud volumes. Running a x series 12 in my Mustang with a Skar 75.4 which I believe is a POS but im not sure

Then your over working your skar 4ch... turn the gain down so your not clipping

 

[Tastypandas]

Then your over working your skar 4ch... turn the gain down so your not clipping

I am pretty sure it is set at quarter gain....

 

[Hertz Mafia]

I am pretty sure it is set at quarter gain....

And.... your gain needs to match your HU rca voltage.

 

[Tastypandas]

And.... your gain needs to match your HU rca voltage.

I will take your advise and go tune it here shortly, thank you very very much man

 

[Jeffdachef 5,000+ posts]

I dont use ssf

amen to that.

 

[Tastypandas]

And.... your gain needs to match your HU rca voltage.

Tried that, made it worse.... //content.invisioncic.com/y282845/emoticons/frown.gif.a3531fa0534503350665a1e957861287.gif

 

[Austin175 10+ year member]

Tried that, made it worse.... //content.invisioncic.com/y282845/emoticons/frown.gif.a3531fa0534503350665a1e957861287.gif

How did you tune it?