Lowering Impedence Rise

[trex-btnhfan 0]

My box is 36w x 19 d x 15.5h

Port is 5.5x14 and 13.75" long

I burp at 49hz, which I have found is the loudest in testing.

Initially, I had the subs wired to 1 ohm, and the total rise came to about 3 ohms.

I then strapped the amps, and wired the subs together, to get a load of .25 to each amp. I went up about a db and a half from doing this.

I want to get my rise lower, but have no idea where to start.

If you guys have any ideas to help me, any would be appreciated.

[Nikuk 1]

first off... what are You tuned to?

[Nikuk 1]

and do You have any intrernal boards? reflection boards?

[Nikuk 1]

and have You run an impedance map? Amp meter (clamp) & dmm... this is the BEST place to start.

[trex-btnhfan 0]

Well we took the clamp and got the rise where I burped at, nowhere else. I also have 2 threaded steel rods in for bracing, 5/8" diameter. Port is tuned to about 52hz.

[trex-btnhfan 0]

Come on all you smart guys and vets

[ngsm13 1]

Well we took the clamp and got the rise where I burped at, nowhere else.  I also have 2 threaded steel rods in for bracing, 5/8" diameter.  Port is tuned to about 52hz.

<{POST_SNAPBACK}>

Wait...your burping/loudest BELOW tuning?!?!?!

NG

[ANeonRider 3]

Makes no sense... Try mapping the whole impedance curve.

[Nikuk 1]

Makes no sense... Try mapping the whole impedance curve.

<{POST_SNAPBACK}>

That was my point. He can't do much of anything until he does.

[trex-btnhfan 0]

Okay Ill get a map of the whole rise.

[CBFryman 2]

try lowering tuning... if you are tuned to 52Hz (truely and not just by your calulations) and you are loudest at 49Hz you will gain some deebeezs just by lowering tuning to say, 45Hz.