input sensitivity

[twink 0]

while the saz3000 says 6v-0.2v for the gain, does addin a line driver which puts out 9v is not safe?

[Punkeyboozter 19]

while the saz3000 says 6v-0.2v for the gain, does addin a line driver which puts out 9v is not safe?

hope this helps

http://www.soundsolutionsaudio.com/forum/i...showtopic=20736

[twink 0]

while the saz3000 says 6v-0.2v for the gain, does addin a line driver which puts out 9v is not safe?

hope this helps

http://www.soundsolutionsaudio.com/forum/i...showtopic=20736

cool. thanks.

another thing. if my line driver puts out 9v, should i turn the amp's gain all the way down at 6v?

im past 3v for the signal and i'll be careful wit the volume knob.

[KU40 173]

it's all about matching the gain setting to what's coming in from the head unit. You can set the gain wherever you want as long as the input signal is the same. But in order to have as much play with the head unit volume as possible, yes turn it all the way down to 6 volts.

[sundownz 197]

If you have a signal of 6 volts you should have the gain all the way down - so yes, if you have 50% more than that your gain should not move from all the way down. Be careful with a line driver.

[JimJ 11]

Is there any particular reason you want to have that much preout voltage?

[trunks9_us 0]

Is there any particular reason you want to have that much preout voltage?

sry to jack this thread but i have a similar situation with a loc on my stock hu.

See I am using a david navone loc

http://www.davidnavone.com/cart.asp?24&cat=7

TWO CHANNEL HIGH QUALITY LINE DRIVE ADAPTER

NE-7V $19.95

See it says you can do this

The Navone Engineering NE-7V is a stereo, full-range speaker level to pre-amp level line output adapter with balanced and/or common outputs, full transformer isolation, an adjustable output signal level that ranges from zero up to 9.5 Volt Maximum RMS, and a powerful infrasonic filter on the bottom end. The inputs of the device connect to the car's left and right speaker leads that are provided, and the gold-plated RCA female chassis mount outputs feed into the input of an aftermarket equalizer, electronic crossover, or power amplifier. The fully isolated circuitry eliminates DC ground loops and provides excellent coupling with a high input impedance. The source impedance of the Navone Engineering NE-7V is low enough to be considered a competition grade component. The output range adjustment (0 to 9.5 Volts) permits a wide range of OEM decks to perfectly interface with a wide range of aftermarket components. However, we highly recommend leaving the trim pots at the MAX level. To optimize the signal and minimize the system noise, we also recommend using the Autosound 2000 Test Disc CD#104, Level Setting, to perfectly set up your system's gain structure.

I have the adjustments a lil over half way to try and meet 6 volts but i have my gain a lil over half way with no bass boost. so should i be turning mine all the way up then on this loc? I am going to be playing with it today but i would like to know what yall think about this as well. If you go to the link you will understand what i am talking about.

Ok i just got back from tuning the loc and i measure the preout voltage on the rca with the hu at 55 out of 63 and a 50hz no at 0 db well measured it in a/c 200 and it came up at 2.1-2.3 at 55 and 2.7 at 63 and this is with the loc turned all the way up. So thats why not my gain is so damn high. and now i understand.

Edited September 5, 2008 by trunks9_us

[3stagevtec 2]

question, if you have 3 amplifiers in the system.. wouldn't that 9V now be shared across all amps? i.e. each amp will see a maximum of 3V..

[KU40 173]

no, voltage doesn't change. For the most part

[sundownz 197]

question, if you have 3 amplifiers in the system.. wouldn't that 9V now be shared across all amps? i.e. each amp will see a maximum of 3V..

Voltage in a parallel circuit is constant - like the wiring in your house, all the outlets read the same voltage.

[3stagevtec 2]

question, if you have 3 amplifiers in the system.. wouldn't that 9V now be shared across all amps? i.e. each amp will see a maximum of 3V..

Voltage in a parallel circuit is constant - like the wiring in your house, all the outlets read the same voltage.

you know, i never thought about it as a parallel curcuit..

but what about the load each amp will place on the pre-amp? many amps together will have a very low impedance, how will that affect most pre-amps??

most manufacturers don't put a limit to the amount of amplifiers that can be driven by their pre-amps... (or am i missing something)

Edited September 6, 2008 by 3stagevtec

[KU40 173]

It's not a problem for the RCAs. However you do run into problems with the remote turn on. Usually if you have 3 or more devices hooked up to it, you'll need a relay.