Safe to give MTX amplifiers 8 volts RMS?
02-16-2005, 10:18 AM
#1
50 Watt CAFz'r
Thread Starter
Join Date: Jan 2002
Posts: 62
MTX support is kind of strage, they, and the amplifiers manuals, state that my MTX amp can handle a maximum input signal of 8 Vrms. A few months ago I bought a 6-Channel Line Driver for all 3 of my amplifiers. Right now I don't have the output gains turned all the way up, but I kind of want to, because that's why I bought the darn thing, to get my 8 volts RMS.
When I talk to MTX support, they say YES you can, but it's "safer" to run them at 5 volts RMS. This kind of makes me mad, because they say it can do one thing, but basically not to do it????!!
That really makes sense...
So I'm posting here to see what input voltage all of you fellow MTX Amplifier owners are running, and if you think it's completely fine to do 8 Vrms.
THANKS
When I talk to MTX support, they say YES you can, but it's "safer" to run them at 5 volts RMS. This kind of makes me mad, because they say it can do one thing, but basically not to do it????!!
That really makes sense...
So I'm posting here to see what input voltage all of you fellow MTX Amplifier owners are running, and if you think it's completely fine to do 8 Vrms.
THANKS
02-16-2005, 10:48 AM
#3
2000 Watt CAFz'r
Join Date: May 2000
Posts: 2,406
What kind of deck is it ?????
What MTX is telling you is, yes the amps can do it, BUT there are alot of dumb people (not saying you are) that will see a 8 volts line driver, 8 volts input.............crank it up !!!...............and poof...............
Even though you have 8 volts there.......you need to make sure your deck is putting out a clean signal too...........you crank a distorted signal up and ram it thru 8volts...............poof............you'll let the hidden smoke out !
What MTX is telling you is, yes the amps can do it, BUT there are alot of dumb people (not saying you are) that will see a 8 volts line driver, 8 volts input.............crank it up !!!...............and poof...............
Even though you have 8 volts there.......you need to make sure your deck is putting out a clean signal too...........you crank a distorted signal up and ram it thru 8volts...............poof............you'll let the hidden smoke out !
02-16-2005, 10:56 AM
#4
50 Watt CAFz'r
Thread Starter
Join Date: Jan 2002
Posts: 62
Tim,
I'm confused as to what you are saying? The deck I have is this one:
http://www.cardomain.com/item/SONCDXF7715X
It's a Sony CD/MP3 player that puts out 4 volts through it's 3 sets of pre-outs. From there, it plugs into my 6-Channel Phoenix Gold 8 Volt RMS Line Driver, which from there, goes into each of my 3 MTX Amplifiers.
I have the GAINS on the Amplifiers turned ALL the way off, so I am not even using any of the amplifiers pre-amps. Since they can handle a maximum of 8 volts, and my Line Driver puts out 8 volts, it only makes sense to have them all off.
I'm confused as to how any of this could cause something to "poof"??
I'm confused as to what you are saying? The deck I have is this one:
http://www.cardomain.com/item/SONCDXF7715X
It's a Sony CD/MP3 player that puts out 4 volts through it's 3 sets of pre-outs. From there, it plugs into my 6-Channel Phoenix Gold 8 Volt RMS Line Driver, which from there, goes into each of my 3 MTX Amplifiers.
I have the GAINS on the Amplifiers turned ALL the way off, so I am not even using any of the amplifiers pre-amps. Since they can handle a maximum of 8 volts, and my Line Driver puts out 8 volts, it only makes sense to have them all off.
I'm confused as to how any of this could cause something to "poof"??
02-16-2005, 11:03 AM
#7
1000 Watt CAFz'r
Join Date: Jun 2004
Posts: 1,024
Originally posted by gmrulz4u:
Tim,
I'm confused as to what you are saying? The deck I have is this one:
http://www.cardomain.com/item/SONCDXF7715X
It's a Sony CD/MP3 player that puts out 4 volts through it's 3 sets of pre-outs. From there, it plugs into my 6-Channel Phoenix Gold 8 Volt RMS Line Driver, which from there, goes into each of my 3 MTX Amplifiers.
I have the GAINS on the Amplifiers turned ALL the way off, so I am not even using any of the amplifiers pre-amps. Since they can handle a maximum of 8 volts, and my Line Driver puts out 8 volts, it only makes sense to have them all off.
I'm confused as to how any of this could cause something to "poof"??
Tim,
I'm confused as to what you are saying? The deck I have is this one:
http://www.cardomain.com/item/SONCDXF7715X
It's a Sony CD/MP3 player that puts out 4 volts through it's 3 sets of pre-outs. From there, it plugs into my 6-Channel Phoenix Gold 8 Volt RMS Line Driver, which from there, goes into each of my 3 MTX Amplifiers.
I have the GAINS on the Amplifiers turned ALL the way off, so I am not even using any of the amplifiers pre-amps. Since they can handle a maximum of 8 volts, and my Line Driver puts out 8 volts, it only makes sense to have them all off.
I'm confused as to how any of this could cause something to "poof"??
02-16-2005, 11:09 AM
#9
50 Watt CAFz'r
Thread Starter
Join Date: Jan 2002
Posts: 62
how do you get any sound if you have all the gains turned all the way down???
Amplifiers have something called a GAIN setting. This is matched to the input voltage it is receiving from either the deck or line driver etc. Since MTX takes 8 volts max, and my line driver is 8 volts RMS, I know I can turn the GAIN all the way down(to 8 volts) and use none of the amplifiers pre-amps, therefore getting a better signal-to-noise ratio.
02-16-2005, 01:27 PM
#10
2000 Watt CAFz'r
Join Date: May 2000
Posts: 2,406
What I am saying is, that if your deck put out distortion at higher level........your sending distortion into the line driver........which is increasing that distortion to the amp..........
Basically, you need to find out at what point the deck starts to clip (volume level) then watch how much you go above that point.............
ummm.......easy analogy.................4 banger motor..........does a certain speed at a certain RPM.............abuse that RPM point and the motor can blow up...........add NOS to it.........the motor will go faster now...........but now that RPM is even more dangerous when abused..............make sense ?
Basically, you need to find out at what point the deck starts to clip (volume level) then watch how much you go above that point.............
ummm.......easy analogy.................4 banger motor..........does a certain speed at a certain RPM.............abuse that RPM point and the motor can blow up...........add NOS to it.........the motor will go faster now...........but now that RPM is even more dangerous when abused..............make sense ?
