ART Pro Audio DUALZDirect - Dual Professional Passive Direct Box - Manual (Page 3)

Installation: Install the unit in accordance with the instructions
printed in the user guide.
INTRODUCTION:
Thanks for purchasing Applied Research and
Technology’s DUALZDirect. The DUALZDirect provides
two independent high quality totally passive interfaces
that let you connect instrument, line, or speaker level
signals to a mixer or other balanced inputs through high
performance audio isolation transformers. Each of the
high impedance single-ended 1/4” inputs is converted by
a transformer into an isolated, balanced, low impedance
signal output. The DUALZDirect's audio transformers
have an extremely flat and wide frequency response
and can handle high signal levels. This gives the
DUALZDirect a very clean and neutral sound with a
wide variety of signal sources and over long signal runs
in high noise environments.
The input ATTENUATOR switches allow for a wide
range of signal levels and the input THRU jacks allows
for tapping off of your signal chain. The GROUND LIFT
switches let you totally separate the input and output
signal grounds, when appropriate, to isolate two
systems, thereby reducing hum and ground-loop noise.
What further sets the DUALZDirect apart from other “DI”
boxes are its extended features and versatility. We have
added switchable low pass FILTERs that cut out all very
high frequency interference. These Bessel filters on the
outputs are placed out of the audio range and are