Soundqubed HDC3 12 tuning

[MyNameIsNoob]

Its in the extended cab section of my truck. Currently sub is facing up, port forward. I havent played around w the orientation yet, jus lettin the subs get a lil use before i turn the amp up n play w it.

Based on where your gain was set, how much of the 3k could it take? Ive read people sayn they had 4000w on it w gain at half bc itll easily handle over 2000

[Triticum Agricolam]

41 minutes ago, MyNameIsNoob said:

Its in the extended cab section of my truck. Currently sub is facing up, port forward. I havent played around w the orientation yet, jus lettin the subs get a lil use before i turn the amp up n play w it.

Based on where your gain was set, how much of the 3k could it take? Ive read people sayn they had 4000w on it w gain at half bc itll easily handle over 2000

You can't tell how much power you are putting to a sub just by the gain setting of the amp.  You can get full power out of an amp with the gain turned all the way down if the signal voltage is high enough.

Power handling of sub is kinda a tricky thing.  There are two things that limit you, cone excursion and heat dissipation.  An HDC312 in a 2.2 cu ft box tuned to 31 Hz should easily handle 3,000 watts from a cone excursion standpoint, as long as you have a properly set subsonic filter.  However if you played a constant 31 hz sine wave at 3000 watts after enough time I can pretty much guarantee you will burn thay sub up.  You could probably burn the sub up with a lot less power than that under the same conditions.  Fortunately music isn't made up of solid sine waves, the dynamic nature of music helps cool the sub down.  For brief periods of time most subs can handle a LOT of power, as long as you don't exceed it mechanical excursion limits.   The HDC3 series are rated at 4500 watts peak and I have no doubt they can handle that in bursts.  The point is a sub's thermal power handling is very situationally dependant and no one can tell you for sure what the limit is going to be.  Your best course of action is to use a reasonably sized amp (which a 3k amp is), sets your gains properly so you aren't clipping, and the just pay attention when pushing your sub hard.  If you start to smell hot coil, back off it for a while.  
 

[MyNameIsNoob]

56 minutes ago, Triticum Agricolam said:

You can't tell how much power you are putting to a sub just by the gain setting of the amp.  You can get full power out of an amp with the gain turned all the way down if the signal voltage is high enough.

Power handling of sub is kinda a tricky thing.  There are two things that limit you, cone excursion and heat dissipation.  An HDC312 in a 2.2 cu ft box tuned to 31 Hz should easily handle 3,000 watts from a cone excursion standpoint, as long as you have a properly set subsonic filter.  However if you played a constant 31 hz sine wave at 3000 watts after enough time I can pretty much guarantee you will burn thay sub up.  You could probably burn the sub up with a lot less power than that under the same conditions.  Fortunately music isn't made up of solid sine waves, the dynamic nature of music helps cool the sub down.  For brief periods of time most subs can handle a LOT of power, as long as you don't exceed it mechanical excursion limits.   The HDC3 series are rated at 4500 watts peak and I have no doubt they can handle that in bursts.  The point is a sub's thermal power handling is very situationally dependant and no one can tell you for sure what the limit is going to be.  Your best course of action is to use a reasonably sized amp (which a 3k amp is), sets your gains properly so you aren't clipping, and the just pay attention when pushing your sub hard.  If you start to smell hot coil, back off it for a while.  
 

I see what ya mean. But yea, I was jus curious how much of the 3k they had to em since the box size was on the larger end of that range. We were jus talking ab how big boxes don't like big power, so I'm gathering  all the facts I can not to put too much power on em. I keep hearing that they're underrated but I've jus always been one who doesn't like to make assumptions before I make a decision.  Fortunately, I do have a DD1+ to help me find where it clips, so other than common sense, that seems like it may be the most important variable here to make em last... Im a sponge so i appreciate you taking the time to break things down for me.