setting gains

[pbnj22 10+ year member]

my amp seems to be overpowering my sub and i was told to set it to 31.6 volts as that would be 1000 watts and my sub is 800 but how would i go about doing that? do i just turn the (level) gain on my amp?

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[n2audio 5,000+ posts]

you need --

- a DMM (digital multi-meter), or an accurate method of measuring AC voltage

- A 50hz 0db test tone on disk (can be downloaded at realmofexcursion.com)

- A few minutes to measure and make the adjustment

 

[James Bang 5,000+ posts]

or you can just slowly turn the gain down until your sub blends in with the rest of your speakers nicely. easy as pie, no DMM, no test tones.

 

[n2audio 5,000+ posts]

you can do a lot of things by the seat of your pants and make it work, but some people like to KNOW for SURE that things are right.

If nothing else it's interesting to check the voltage and see what amt of power "sounds right" vs the rest of the system.

 

[pbnj22 10+ year member]

well my sub is rated at 800 watts rms and my amp is rated at 1900 and i wanna make sure im not over powering it to much

 

[Twistid 5,000+ posts]

What are the make/model of your subwoofer and amp?

 

[TurdFergueson2 5,000+ posts]

Not sure of the sub, but he has an Autotek SS 1900.1D

I think it's a Diamond Sub iirc.....

 

[pbnj22 10+ year member]

diamond audio d9 d2 12 inch (sub) autotek ss1900.1d (amp) its running at 1 ohm to BTW

 

[pbnj22 10+ year member]

Not sure of the sub, but he has an Autotek SS 1900.1D
I think it's a Diamond Sub iirc.....

nice call lol

 

[pbnj22 10+ year member]

sub is rated at 800 rms 1600 peak

 

[snb778 5,000+ posts]

you need --
- a DMM (digital multi-meter), or an accurate method of measuring AC voltage

- A 50hz 0db test tone on disk (can be downloaded at realmofexcursion.com)

- A few minutes to measure and make the adjustment

why does everyone say a 50Hz tone... I just think if you set the gain w/ a 50hz tone... once that sub hits tuning at lets say 32hz... its going to be in danger because it plays so much harder than the 50hz tone that you set for your MAX output level

or to say it another way... If I have a box tuned to 32hz, and I set the MAX output at a 50hz tone... think about whats going to happen when it drops to 32hz... make sence??

 

[pbnj22 10+ year member]

why does everyone say a 50Hz tone... I just think if you set the gain w/ a 50hz tone... once that sub hits tuning at lets say 32hz... its going to be in danger because it plays so much harder than the 50hz tone that you set for your MAX output level
or to say it another way... If I have a box tuned to 32hz, and I set the MAX output at a 50hz tone... think about whats going to happen when it drops to 32hz... make sence??

ya makes sense

 

[snb778 5,000+ posts]

i used a 40hz tone for mine, and im maxin out at tuning.. if I used a 50hz tone id probably blow the dam thing

 

[Haunz 10+ year member]

why does everyone say a 50Hz tone... I just think if you set the gain w/ a 50hz tone... once that sub hits tuning at lets say 32hz... its going to be in danger because it plays so much harder than the 50hz tone that you set for your MAX output level
or to say it another way... If I have a box tuned to 32hz, and I set the MAX output at a 50hz tone... think about whats going to happen when it drops to 32hz... make sence??

wat ?

At fb the impedance will RISE.... not fall..... ie. the sub will get less power even if the cone moves more....

50-60hz sine works well because almost any meter will be relativley accurate

 

[snb778 5,000+ posts]

yea but im saying if I have my sub playing at max potential with a 50hz tone (with a box tuned to 32hz)... whaddya think is gonna happen at tuning... its gonna be playing WAY past max potential... I would think you should use a 30hz tone to tune a 32hz box.. that way, you know your sub won't play any louder than that tuning frequ.