• Perfect for stage and studio 
• Solid extruded aluminum chassis with rubber feet
• Splitting one microphone signal to separate main, monitor or auxiliary mixes 

Stereo Passive DI Box
Professional and multi-purpose direct injection box for stage and studio applications Provides impedance and signal matching for the direct connection of instruments to mixers and amplifiers. Allows direct connection to speaker outputs with up to 3.000 Watts, Ground Lift switch eliminates typical ground loop problems.

Thru / Out jack lets you send the unbalanced signal to an onstage amplifier while the balanced signal is routed to the mixer.1/4 TRS and XLR connectors Ultra rugged. road-suitable metal case High-quality components and exceptionally rugged construction ensure long life and durability

• Front and rear function description
• Input - 1/4 'TRS (Audio Input Terminal)

ATT-Slide Switch (Volume Damper) The input terminal is designed for HIGH IMPEADANCE (MATCHING UNBALANCE50Kohm), even if a high audio signal voltage is inputted, by adjusting the ATT switch, the Voice Signal Output Terminal can be used as a LINE voice signal.

Output-XLR (Audio Signal Output)
The output unit is designed with MATCHING low impedance (600ohm), and using LINE TRANS, the input terminal impedance of the external device connected to this voice signal output terminal is usually 2.4 Kohm-3.3Kohm (except MATCHING-Z) can be used.

LIFT SWITCH-Slide Switch
• Use the voice output terminal pin 1 in the GND position, and if type noise is generated due to LOOP, use it in the LFT position.

Specifications
• Input Sensitivity (ref OUTPUT LEVEL = 0.775V/600ohm. 1mw)
• ATT-40dB Input level INPUT LEVEL (100mW) - 70.7V
• ATT -20B Input level INPUT LEVEL (10mW) - 22.4V
• ATT-0dB Input level INPUT LEVEL (1mW) - 7.1V
• TOTAL HARMONIC DISTORTION (20Hz-20KHz) - 0.03%
• FREQUENCY RESPONSE (+0dB/-1dB)-20Hz-20KHz
• INPUT IMPEADANCE
• ATT -0dB 50Kohm (MATCHING-Z)
• ATT-20dB 50Kohm (NORMINAL-Z)
• ATT-40dB 100Kohm (NORMINAL-Z)
• OUTPUT IMPEADANCE 600ohm (MATCHING-Z)

Aifa Pro 20P
DI Stereo Passive DI Box