gain calculator site?

[Mr.meyhem 10+ year member]

i can find the site on here. I'm trying to wire up my oa 15 d2 to 1k. at 1 ohm. what should this be wired to? or better yet link to the calculator? thanks

Click to read more...

 

[kramer_212 10+ year member]

calculator?, just wire it parralel.

 

[ahole-ic]

Gain Setting Tutorial - eCrack.net

 

[itsblown 10+ year member]

wtf are you talking about?

setting gains or trying to achieve a certain ohm load

 

[MisterDeadeye 10+ year member]

You're talking about voltage, right?

V = sqrt(RMS * impedance)

V = sqrt(1000*1)

V = sqrt(1000)

V = 31.6227766

EDIT: eCrack has an actual calculator.

 

[fish1234 10+ year member]

Wattage

 

[ngsm13 5,000+ posts]

You do realize that setting gains via DMM is worthless, right?

 

[ahole-ic]

You do realize that setting gains via DMM is worthless, right?

Yeah it's so much better to just crank the gain until you see smoke.

 

[keep_hope_alive Premium Member]

You do realize that setting gains via DMM is worthless, right?

How is it worthless? Explain in detail.

We prefer an oscilloscope so system effects are taken into consideration. That is a lot to ask of people asking questions on a forum. The biggest issue is knowing what wattage to assume and having a DMM that is accurately used.

I use a DMM to ensure left and right gain dials are actually equal. Visual inspection alone is highly innacurate.

 

[Mr.meyhem 10+ year member]

You're talking about voltage, right?
V = sqrt(RMS * impedance)

V = sqrt(1000*1)

V = sqrt(1000)

V = 31.6227766

EDIT: eCrack has an actual calculator.

this is what i ended up doing. but going from 34.62 at 4 ohms to 31.62 at 1 ohm didn't do anything for me in terms of how loud it was... i could barely hear a different. and the apsm1300 is suppose to do 300 at 4 and 1k at 1... so should i be able to notice a 700w change?

 

[Mr.meyhem 10+ year member]

Wattage

this was what i was looking for. thanks

 

[Mr.meyhem 10+ year member]

the apsm is rated at 2k max so thats what i put in and i got like 44.7 but that doesn't match the ( square root ohms x rms) so which is right?

 

[fish1234 10+ year member]

the apsm is rated at 2k max so thats what i put in and i got like 44.7 but that doesn't match the ( square root ohms x rms) so which is right?

Use 1k instead of 2k and that will get what your after.

 

[Mr.meyhem 10+ year member]

Use 1k instead of 2k and that will get what your after.

the 44.7 or the 31.62 will get me what I'm after? lol

 

[fish1234 10+ year member]

1k.