Rockford 2500.1-bdcp Led meters

[AndrewHD 10+ year member]

Hello peeps, does anyone have experience with these amps that can help me out? I set my gains with a dd-1 but the meter still goes red on songs with hard bass at higher volumes. Is this ok or am I clipping since the meter is blue then turns red when a deep bass note hits?

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[LosIsATool 5,000+ posts]

What track did you use?

 

[AndrewHD 10+ year member]

track 5 I think its 40hz at -10db if I remember correctly. Should I try again with track 3?

 

[LosIsATool 5,000+ posts]

track 5 I think its 40hz at -10db if I remember correctly. Should I try again with track 3?

If you are listening to real bass heavy stuff you need to go -5db. Bass mekanik type tracks are going to clip at 0db.

 

[AndrewHD 10+ year member]

The problem is my Sundown SA 12's barely even move any air even when clipping at high volumes. I replaced the RCA cables and it did not have a noticeable difference. Now I am thinking my headunit is at fault

 

[LosIsATool 5,000+ posts]

The problem is my Sundown SA 12's barely even move any air even when clipping at high volumes. I replaced the RCA cables and it did not have a noticeable difference. Now I am thinking my headunit is at fault

Rethink the box. Those subs are only going to do so much. You would be better off with larger woofers. Also those amps are very very power hungry. You might be running out of juice.

 

[AndrewHD 10+ year member]

Rethink the box. Those subs are only going to do so much. You would be better off with larger woofers. Also those amps are very very power hungry. You might be running out of juice.

Box is 4.5 cu ft with 6" aero port at 30hz. My voltage does not drop lower than 13.7 because my subs are wired at 4ohms (1500 watts). I would think an underrated 1500 watts would be enough for 2 SA's

 

[LosIsATool 5,000+ posts]

Box is 4.5 cu ft with 6" aero port at 30hz. My voltage does not drop lower than 13.7 because my subs are wired at 4ohms (1500 watts). I would think an underrated 1500 watts would be enough for 2 SA's

That's not a lot of port.

 

[NIHL8ION]

That's on the smaller side for 2 SA's (4.5^ft.), I'm sure with good clean power the pair will take all of that 1500 and laugh at it...

 

[AndrewHD 10+ year member]

I thought that would be big for 2 SA 12's. Sundown recommends 2.0-2.25 cu ft. for one SA 12 ported. The port is on the small side because I wanted it to still be pretty musical. The port is in the middle of the box with at least 7 inches away from the back wall. Subs and port are on the same plane forward firing in trunk. I can barely get my rearview mirror to move with this setup. I don't think the box is the problem

 

[AndrewHD 10+ year member]

My ground and power to the amp are pretty long. If I shorten both will I get a noticeable difference in output?

 

[LosIsATool 5,000+ posts]

My ground and power to the amp are pretty long. If I shorten both will I get a noticeable difference in output?

If its a good ground no. Most of us run full grounds. Have you turned the box around? It needs more port, the volume is fine.

 

[East 10+ year member]

1500w and 2 12" SA's your rearview should barebly be holding on my boy had 2 12's on 2k in his van and his wipers were flapping. I'm guessing it's box related or you're not getting the power you think you are or wired the subs wrong.

 

[LosIsATool 5,000+ posts]

1500w and 2 12" SA's your rearview should barebly be holding on my boy had 2 12's on 2k in his van and his wipers were flapping. I'm guessing it's box related or you're not getting the power you think you are or wired the subs wrong.

Mirror falling off is car dependent. Cars with large weak roofs are more likely to have the mirror twist or fall off. My mirror only twist when the car is VERY hot inside.

 

[Dirtrider4eva 10+ year member]

While you maybe be wired for 4ohms. Your lack of port snd presummed bracing, you may be getting alot of rise. Wire down to 1 and be gain careful