Gain Setting Tutorial

[Lakota 5,000+ posts]

What about impedance rise? Will it cause distortion?

 

[JRich89 10+ year member]

Cant get the gain setting tutorial to work. Dont really understand how to set the gains and SSF

 

[BassBEAST88 10+ year member]

To get the approx. AC voltage you have to take the RMS at 2 ohms right so if its 800 x 2 2ohm or w/e it would be 40ACV correct. Please correct me if i am wrong!

 

[Lakota 5,000+ posts]

To get the approx. AC voltage you have to take the RMS at 2 ohms right so if its 800 x 2 2ohm or w/e it would be 40ACV correct. Please correct me if i am wrong!

The sqrt of 800x2 = 40 //content.invisioncic.com/y282845/emoticons/thumbsup.gif.3287b36ca96645a13a43aff531f37f02.gif

 

[topdogg069 10+ year member]

I have 3 12" kickers dual 2 ohm subs. I have them wired to 1.34 ohms. I have a hifonics bx1605, 1600x1 at 1ohm. since its not wired at 1ohm, I was wondering how i would determine my power? should i just use the 1600 watts for my power number? if so it would be sqrt(1600x1.34)=46.3.

 

[Johnny Drama 5,000+ posts]

I have 3 12" kickers dual 2 ohm subs. I have them wired to 1.34 ohms. I have a hifonics bx1605, 1600x1 at 1ohm. since its not wired at 1ohm, I was wondering how i would determine my power? should i just use the 1600 watts for my power number? if so it would be sqrt(1600x1.34)=46.3.

Yep //content.invisioncic.com/y282845/emoticons/wink.gif.608e3ea05f1a9f98611af0861652f8fb.gif

 

[SuperJETT 10+ year member]

Yep //content.invisioncic.com/y282845/emoticons/wink.gif.608e3ea05f1a9f98611af0861652f8fb.gif

Not so. It won't put out 1600 watts at 1.34 ohms. Looking at the BXi 1606D, it's rated 550@4, 1100@2, and 1600@1 ohm. It doesn't double from 2 to 1, so it can't maintain full voltage with the lower load.

At 2 and 4 ohms, it's voltage is 46.9 but at 1 ohm it's 40, and we don't know how it responds at 1.34 ohms so I'd say go somewhere in between, probably 43 or so.

 

[DBfan187 5,000+ posts]

Best things for level setting!//content.invisioncic.com/y282845/emoticons/biggrin.gif.d71a5d36fcbab170f2364c9f2e3946cb.gif

 

[FAM4LIFE 10+ year member]

Do you have to reset your gains when using different subs. I would once in a while change out my 12" HC with my 15" Shocker and didn't have to worry about the gains.

The 12 was in a ported enclosure wired to 1-ohm.

The 15 was in a sealed enclosure wired to 2.8-ohms.

Soon I will be putting in 4 10s sealed wired at 1-ohm. Will I need to readjust my amp or is it fine considering the H/U is still the same.

 

[dleccord 5,000+ posts]

gonna set the gains tomorrow for my digital amp(mrd-m301) any pointers? doesnt have the regular knobs like most amps do so its kinda hard to figure out how im gonna set it.

 

[Johnny Drama 5,000+ posts]

Not so. It won't put out 1600 watts at 1.34 ohms. Looking at the BXi 1606D, it's rated 550@4, 1100@2, and 1600@1 ohm. It doesn't double from 2 to 1, so it can't maintain full voltage with the lower load.
At 2 and 4 ohms, it's voltage is 46.9 but at 1 ohm it's 40, and we don't know how it responds at 1.34 ohms so I'd say go somewhere in between, probably 43 or so.

Meh...I didnt read his part on not wiring at 1ohm. But who cares? LOL

even at 1ohm I highly doubt it puts out 1600rms (atleast not without 10%+ distortion) an extra 4 volts isnt going to do any damage....unless he drives around listening to test tones //content.invisioncic.com/y282845/emoticons/wink.gif.608e3ea05f1a9f98611af0861652f8fb.gif

 

[SuperJETT 10+ year member]

Meh...I didnt read his part on not wiring at 1ohm. But who cares? LOL even at 1ohm I highly doubt it puts out 1600rms (atleast not without 10%+ distortion) an extra 4 volts isnt going to do any damage....unless he drives around listening to test tones //content.invisioncic.com/y282845/emoticons/wink.gif.608e3ea05f1a9f98611af0861652f8fb.gif

Agreed.

I'll use our Fluke from work with o-scope functions and leave it at that.

 

[dleccord 5,000+ posts]

I know my DMM works because I got the voltage down for my mono block. I know my component amps work fine because I tested both T320/F340 and I get around 1.5 volts using the AC. I had MX on, volume@ 20/35, fader to the front, and had it on full pass.

What's wrong guys? Is it the 1khz test tone?

 

[topdogg069 10+ year member]

does anybody have a link for test tones that work? i have tried the links in this thread and cant find any that work for me to download. im looking for a 50hz test tone.

 

[dadeschevyboy 10+ year member]

i was looking at the JL tutorial and i noticed how it said turn off all processing on my headunit but the treble and bass and loudness ect. dont affect my subwoofer only my mids and highs which arent amped....should i still have to worry about it or just set my volume at the loudest i listen to and turn off the bass boost and lower all the SUBWOOFER settings on my headunit (if it helps i have a Premier DEH-670MP)