Another gain setting question? voltage
Grand HDF Member
Joined: Sep 2017
Posts: 3,686
Likes: 909
From: Southern Virginia
OP also consider is he going to use the preamp outputs which are rated at 2V or speaker level? That may make a difference in your gain settings and headroom.
The preamps would produce cleaner sound but at 2V you may have to increase the gain setting a little. Maybe someone with more experience can advise.
The problem I see with setting gains with DC voltage readings is the meter isn't going to show clipping. Only an oscilloscope of some kind will show that.
As far as getting a voltage to shoot for with the info Bates has provided that amp was tested at 91 watts with a 4 ohm load. Using ohms law if you multiply watts times ohms and take the square root of that you can find the voltage. So if we multiply 91 times 4 that gives us 364. The square root of that is 19.07, so lets say 19 volts.
So does that make sense or does experience with that equipment say otherwise?
The preamps would produce cleaner sound but at 2V you may have to increase the gain setting a little. Maybe someone with more experience can advise.
The problem I see with setting gains with DC voltage readings is the meter isn't going to show clipping. Only an oscilloscope of some kind will show that.
As far as getting a voltage to shoot for with the info Bates has provided that amp was tested at 91 watts with a 4 ohm load. Using ohms law if you multiply watts times ohms and take the square root of that you can find the voltage. So if we multiply 91 times 4 that gives us 364. The square root of that is 19.07, so lets say 19 volts.
So does that make sense or does experience with that equipment say otherwise?
Seasoned HDF Member
Joined: Dec 2005
Posts: 5,446
Likes: 589
I'm curious why the OP used 200w in his original calc when the amp was only rated on paper to produce 160w. Seems like that was a recipe for disaster. I think the values used below are much more accurate (and safe from damage).
Zach
Zach
OP also consider is he going to use the preamp outputs which are rated at 2V or speaker level? That may make a difference in your gain settings and headroom.
The preamps would produce cleaner sound but at 2V you may have to increase the gain setting a little. Maybe someone with more experience can advise.
The problem I see with setting gains with DC voltage readings is the meter isn't going to show clipping. Only an oscilloscope of some kind will show that.
As far as getting a voltage to shoot for with the info Bates has provided that amp was tested at 91 watts with a 4 ohm load. Using ohms law if you multiply watts times ohms and take the square root of that you can find the voltage. So if we multiply 91 times 4 that gives us 364. The square root of that is 19.07, so lets say 19 volts.
So does that make sense or does experience with that equipment say otherwise?
The preamps would produce cleaner sound but at 2V you may have to increase the gain setting a little. Maybe someone with more experience can advise.
The problem I see with setting gains with DC voltage readings is the meter isn't going to show clipping. Only an oscilloscope of some kind will show that.
As far as getting a voltage to shoot for with the info Bates has provided that amp was tested at 91 watts with a 4 ohm load. Using ohms law if you multiply watts times ohms and take the square root of that you can find the voltage. So if we multiply 91 times 4 that gives us 364. The square root of that is 19.07, so lets say 19 volts.
So does that make sense or does experience with that equipment say otherwise?
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