ya know when amps say input -15 or other input is 0db, what is that exactly?

[dassy]

when you have an amp with 2 inputs and it says -15db or 0db, what is that all about

 

[heylow]

Not to be a smart ass but without knowing what "amp" you are referring to, I'd have to shoot in the dark and say that one is padded by 15dB.



heylow

 

[barefoot]

Yeah, 0dB means no change has been made to the signal. –15dB most likely refers to a resistor network at the input that reduces the signal level (by a factor of 1/6 in this case) before it reaches and active components in the amp.

This is useful if you have a very hot signal coming from your source. Active components (amps, preamps) have fixed maximum voltage swings. If the input signal exceeds this maximum swing the active components will simply clip off the top of the signal. Passive components like resistors don’t care how big the input signal is, so long as it’s not so big to fry them. So they are often used to bring the signal to a manageable level before it’s seen by the amp.

barefoot

 

[dassy]

thanx barefoot

im a little confused, could you reexplain that and assume im a complete idiot or newbie (not saying there the same)

thanx ahead of time,

 

[Dom Franco]

NEWBIE TRANSLATION

Plug stuff into the -15db channel, if you can't get it loud enough then use the 0db input!

nuff said...

Dom