Subs just don't seem loud enough

[Falcons 5,000+ posts]

So then wouldn't it be a LOT fuggin easier to set the HU LPF to 80Hz and turn the amp LPF all the way up....

Didn't think guessing where 80 hz was was to hard lol

 

[Iosias 10+ year member]

Do you have a DMM OP? and agreed ^^^^ Its not that hard... lol

 

[mlstrass 5,000+ posts]

Didn't think guessing where 80 hz was was to hard lol

Why guess when you can use the HU LPF and get it exact....

 

[argenis69 10+ year member]

Does using some bass boost on the crossover harmful for the sub and/or amp?

 

[frogcase2002 10+ year member]

Does using some bass boost on the crossover harmful for the sub and/or amp?

Boost is going to clip

 

[Bettr n' Revrse 5,000+ posts]

Phase for sure

 

[grobbins81 10+ year member]

okay guys I have everything tuned right like y'all said and I used a dmm to check the voltage from the power wire to ground wire and it reads a little more than 12. while the truck is not running. Still hardly no bass coming out of the sub just a little tiny bit. Should I drill a hole through the bottom of the cab and ground straight to the frame? I am out of options and getting really frustrated because it seems to me like everything is right. I also don't get how to fix a phasing problem I see the phase knob on the amp but what to do with it? Thanks for all the help up to this point.

 

[argenis69 10+ year member]

What is phase, or what is it for?

 

[Somchine13 10+ year member]

I don't know what kind amp do you have but i have a hifonics brz 1700 powering a single 12 dual 4 OA v.2 ported to 32 hz and to get that thing moving i had to turned the bass boost level to 9:00 and gain to 4:00.

 

[T.I.K. 10+ year member]

I don't know what kind amp do you have but i have a hifonics brz 1700 powering a single 12 dual 4 OA v.2 ported to 32 hz and to get that thing moving i had to turned the bass boost level to 9:00 and gain to 4:00.

No... just no... you can't just set gains and bass boost willy nilly

 

[Better-Action 10+ year member]

Grob. Unhooking one sub see what happens. Phasing issues because of wiring will take 5 Minutes to fix. Unplug on and if it gets louder then one is wired wrong.

 

[bhsdriller 10+ year member]

unhook the sub wires going into the amp...grab a 9v battery. Touch pos-pos and neg-neg with the speaker wires and battery. If both subs move the same way, they're in phase. If not, out of phase

A ground issue isn't really going to cause a decrease in volume. At least for me it didn't, just gave me ****** voltage

 

[grobbins81 10+ year member]

I have attached pictures of the settings on my amp and a picture of my current ground. As far as checking the phase, when i read the ohms on the wires going into the speaker terminals on the amp it reads 2 ohms. I have them wired together using this wiring diagram.

http://a248.e.akamai.net/pix.crutchfield.com/ca/learningcenter/car/subwoofer_wiring/2DVC_2-ohm_mono.jpg

 

[Better-Action 10+ year member]

There have been 5 or so post about phase. Check it out and rule it out. Its the fastest and easiest thing You can do. Unhooking the second speaker. If its a phase problem, unhooking the second speaker will make just the one still playing 5 times as loud as both playing.

 

[bhsdriller 10+ year member]

I have attached pictures of the settings on my amp and a picture of my current ground. As far as checking the phase, when i read the ohms on the wires going into the speaker terminals on the amp it reads 2 ohms. I have them wired together using this wiring diagram. http://a248.e.akamai.net/pix.crutchfield.com/ca/learningcenter/car/subwoofer_wiring/2DVC_2-ohm_mono.jpg

that says nothing about the phase....test it like I said a few posts up