Re: 4 Volt Outputs - what does this mean? (Fahrfrumluzin)
a stronger signal for your amp to work with. the salesman wasnt lying to you!
a stronger signal for your amp to work with. the salesman wasnt lying to you!
4 Volt Outputs - what does this mean?
I've got a '01 Clarion ProAudio deck, and it has this feature.
When I bought the deck the salesguy said they would be much better when/if I decide to run subs down the road. It was a small $$$ difference so I sprung for it.
The reason I ask is because *now* I'm considering subs. Can anyone tell me what difference these outputs will make, if any?
TIA
JASON
When I bought the deck the salesguy said they would be much better when/if I decide to run subs down the road. It was a small $$$ difference so I sprung for it.
The reason I ask is because *now* I'm considering subs. Can anyone tell me what difference these outputs will make, if any?
TIA
JASON
1 - 7 of 7 Posts
Re: 4 Volt Outputs - what does this mean? (Fahrfrumluzin)
The 4 volt output refers to the amount of ac voltage coming out of the pre-amp outputs on your Clarion deck. If you popped a test cd in your deck and played back a 1khz test tone at full volume while measuring the pre-amp outputs with a voltmeter on the "AC" setting you should see around 4 volts. The idea is that the high voltage helps overcome induced noise from things like power cables, since you won't need to turn the amplifier gains up as high (the gain on an amp is not a volume control, but a level matching device). The thing they don't tell you is that when your listening to the deck at 1/4 volume your voltage is more along the lines of 250 millivolts. What happened to that noise cancelling 4 volt output? While a high voltage deck is important an even more important feature that is often overlooked is the output impedence. The lower, the better. A low impedence output deck resists induced noise better than just a high voltage deck because the impedence is constant, not variable with the volume.
The 4 volt output refers to the amount of ac voltage coming out of the pre-amp outputs on your Clarion deck. If you popped a test cd in your deck and played back a 1khz test tone at full volume while measuring the pre-amp outputs with a voltmeter on the "AC" setting you should see around 4 volts. The idea is that the high voltage helps overcome induced noise from things like power cables, since you won't need to turn the amplifier gains up as high (the gain on an amp is not a volume control, but a level matching device). The thing they don't tell you is that when your listening to the deck at 1/4 volume your voltage is more along the lines of 250 millivolts. What happened to that noise cancelling 4 volt output? While a high voltage deck is important an even more important feature that is often overlooked is the output impedence. The lower, the better. A low impedence output deck resists induced noise better than just a high voltage deck because the impedence is constant, not variable with the volume.
Re: 4 Volt Outputs - what does this mean? (Fahrfrumluzin)
One point to remember when you buy your amp for the subs..Make sure to buy a very reliable brand with a track record of reliability... Some amps blow up when used at high volumes with a 4 volt output...
One point to remember when you buy your amp for the subs..Make sure to buy a very reliable brand with a track record of reliability... Some amps blow up when used at high volumes with a 4 volt output...
Re: 4 Volt Outputs - what does this mean? (Nash50)
It doesn't matter whether it's a 8V output or a 0.7V output, you can still get full output from any amp with either. The "gain" (actually sensitivity) control on the amp is only to match the amp to the source so the amp is at full output when the headunit/eq/etc. is.
So regardless of your gain settings or HU output voltage, you can still fry subs, amps, etc.
It doesn't matter whether it's a 8V output or a 0.7V output, you can still get full output from any amp with either. The "gain" (actually sensitivity) control on the amp is only to match the amp to the source so the amp is at full output when the headunit/eq/etc. is.
So regardless of your gain settings or HU output voltage, you can still fry subs, amps, etc.
Re: 4 Volt Outputs - what does this mean? (Fahrfrumluzin)
Also remember that the hu is not going to put out a full 4v signal.At the max undistorted vol setting,it will probably be doing around 2.5 to 3v.Which is still a fairly strong signal.
Also remember that the hu is not going to put out a full 4v signal.At the max undistorted vol setting,it will probably be doing around 2.5 to 3v.Which is still a fairly strong signal.
1 - 7 of 7 Posts
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