Samson S-MAX MCD2 Pro 2-Channel Passive PC Direct Box - Manual (Page 3)

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A direct insertion box, or DI box, converts unbalanced high impedance
signals to balanced low impedance signals. This provides the facility to
run long cables without deterioration of the signal, as well as connecting
audio signals to a mixer’s microphone input.
Samson’s S-Max Direct Boxes combines premium sound circuitry
with durable, roadworthy construction to provide high-quality signal
connection solutions for live and studio applications. The Samson
MCD2 Pro Professional Stereo Passive Direct Box offers a variety of DI
solutions for live sound and recording applications. You can connect
all kinds of audio signals like those from computers, CD/MP3 players,
keyboards, and DJ equipment.
Featuring two of Samson’s STLX Faraday shielded transformer, which
deliver an extended, flat frequency response, ultra-low distortion, and
eliminates hum and RF interference. The MCD2 Pro balanced output
provide a clean signal, that is less susceptible to noise when compared
to an unbalanced cable, which allows for running longer lengths of
cables. Another benefit from a balanced connection is CMR (Common
Mode Rejection), which provides cancellation of interference (hums and
buzzes), while leaving the original signal pure.
The input jacks are wired in parallel which enables you to tap off the
signal from the input and pass the signal to an amplifier or monitor
without affecting the original sound. The Stereo/Mono switch mixes the
two input channels together for situations where the number of audio
channels is at a premium.
With proper care and maintenance, your MCD2 Pro will operate trouble-
free for many years. Should your direct box ever require servicing, a
Return Authorization (RA) number must be obtained before shipping
your unit to Samson. Without this number, the unit will not be accepted.
Please call Samson at 1-800-3SAMSON (1-800-372-6766) for an RA
number prior to shipping your unit. If your direct box was purchased
outside of the United States, contact your local distributor for warranty
details and service information.
Introduction