Infrasonic QUARTET, Manual

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PAD jumper: Generally, the function of PAD jumper is used with professional microphone
pre-amplifications. When using high-sensitivity condenser microphones or recording a loud
drum sound or doing proximity recording, PAD jumper can be set to allow extended input
level by -20dB. This way QUARTET pr20 dB headroom for higher input levels and
results a clipping and distortion free recording.
PAD OFF (Default) PAD ON
MIC GAIN jumper: This jumper allows you to select the amount of input gain. If you set
the correct jumper position according to recording situations, you can achieve noiseless
sound and better quality than you think.
+20dB +40dB (Default) +60dB
Jumper setting for high-sensitivity
condenser microphones
Jumper setting for
dynamic microphones
Jumper setting for recording
sound sources in the distance
CAUTION
Before connecting the condenser microphone to QUARTET, please make sure, that the +48V
phantom power is disabled. Before powering the phantom power on/off, also please make
sure that the connection is firm and secure. If you do not respect this caution, electric shock
may harm your microphone and QUARTET.
2.2. External I/O cable
Word Clock I/O : This port is for
the matching Word Clock with
other audio cards/devices. You
can set Word Clock between other
pro audio device and QUARTET via
this port.
Digital S/PDIF Coaxial I/O:
Connect digital devices such as
decoders. This connector allows
you to transfer QUARTET’s audio
data digitally, directly to devices
like a DAT, MD, CD-recorder with
digital input. This coaxial I/O port
fully supports 192 kHz.
MIDI I/O: QUARTET provides 16
midi channels I/Os.