Gain matching

[mahc 10+ year member]

Do I really need to buy an oscilloscope or put money in douche meade's pocket to set the gains of a bridged 4ch powering two s4 subs?

Click to read more...

 

[1aespinoza Premium Member]

Do I really need to buy an oscilloscope or put money in douche meade's pocket to set the gains of a bridged 4ch powering two s4 subs?

Using the multimeter works fine. I set my own gear by ear and have great results, but that is because only I have access to my gear. Here is the formula for setting with multimeter. The watts in the formula will be what you wish each speaker to receive.

 

[mahc 10+ year member]

Using the multimeter works fine. I set my own gear by ear and have great results, but that is because only I have access to my gear. Here is the formula for setting with multimeter. The watts in the formula will be what you wish each speaker to receive.
View attachment 62858

Thanks. I'll try on the work bench. I'm too ocd to do it by ears.

 

[munchy_cool 10+ year member]

depending on the voltage coming out from the amp a cheap scope from amazon will also work. dso152 will work fine upto 60-65v from amp.

 

[Jimi77 Premium Member]

I set gains by ear. If you use a test tone, it's pretty easy to hear the test tone start to clip. The pitch of the test tone will start to increase (to a higher frequency). When you hear the change dial it back ~2-3db.

 

[AnthonyO 10+ year member]

Pardon Our Interruption...

 

[Eggs 5,000+ posts]

 

[mahc 10+ year member]

I set gains by ear. If you use a test tone, it's pretty easy to hear the test tone start to clip. The pitch of the test tone will start to increase (to a higher frequency). When you hear the change dial it back ~2-3db.

It's more a matching outputs problem than setting them.

Pardon Our Interruption...

I was thinking about buying one of these or find an old museum piece locally but I think I'll shop for another amp instead of having another tool that I'll barely use.

Nice hat!

 

[mahc 10+ year member]

Never mind the hat.. awesome vid!

 

[AnthonyO 10+ year member]

I have several tools in my arsenal that I hardly ever use. But when I need them, they are so convenient.

I have the

Handheld DSO152
SMD DD1
MultiMeter
Test leads
etc.

But when I didn't have them, it sucked not having them.