Quick Start Guide
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Introduction 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.
Callouts 1 2 3 1 Front 2 4 5 6 7 6 Rear 1. 1/4” INPUT Jacks – 1/4” hi-Z input jacks for connecting for instruments, line level, or speaker level audio. 2. RCA Input Jacks – Unbalanced RCA jacks for connecting line level signals. The RCA jacks are wired in parallel with the 1/4” and STEREO INPUT jacks. 3. STEREO INPUT Jack – 1/8” stereo input jack for connecting line level signals. The STEREO INPUT jack is wired in parallel with the 1/4” and RCA jacks. 4.
Setup The MCD2 Pro can be quite useful on stage or in the studio for connecting unbalanced audio sources or instruments with pickups. By utilizing the MCD2 Pro, the signal can be sent cleanly for long distances while benefiting from the low noise and common mode rejection provided by the balanced low-level output. The diagram following shows a typical hook-up for a DJ Controller/ Interface connected to a PA system. • • • • • • • Set the volume controls of your audio system to the off position.
Connecting a Laptop • • • • • • • • Set the volume controls of your audio system to the off position. Connect the 1/8” stereo output of your laptop or other audio source to the STEREO Input jack of the MCD2 Pro. Connect the 1/4” parallel jacks to active monitor speakers. Connect the Left and Right BALANCED OUTPUT jacks to a pair of microphone inputs of a mixer or other audio device. Pan the input channels of the mixer left and right. Raise the level of the audio system to the appropriate level.
Specifications Type Stereo Passive Direct Box Frequency Response 18Hz to 40kHz ±0.1dB Maximum Input +20dBu 0.35% THD Dynamic Range >100dB @ Balanced Output Noise Floor -117dB Total harmonic distortion <0.
Block Diagram Pad Transformer Balanced Output Faraday Shielded Pad Transformer Stereo/ Mono Ground Lift SW Balanced Output Faraday Shielded Ground Lift Samson Technologies Corp. 45 Gilpin Avenue Hauppauge, New York 11788-8816 Phone: 1-800-3-SAMSON (1-800-372-6766) Fax: 631-784-2201 www.samsontech.
