Rocktron Nitro - Manual (Page 9)

Specifications
Maximum Input
Input Impedance
Current Consumption
Power Requirements
-5dBu
1M
25mA
DC9V>100mA built-in regulator
* CE Approved *
Hints and Tips:
The Nitro Booster pedal usually sounds better when placed before
all other stomp boxes in your signal chain. The Nitro provides up
to 22db of boost - but with different amplifiers different settings
may sound better. For additional edge in chordal work or for
enhanced articulation - use lower settings of the boost control. For
your solos or special effects that you really want to “jump-out” of
the mix - try higher settings of the boost control.