Quick Start Guide
I f you want to dispose this product, do not mix it with general household waste. There is a separate collection system for used electronic products in accordance with legislation that requires proper treatment, recovery and recycling. Private household in the 28 member states of the EU, in Switzerland and Norway may return their used electronic products free of charge to designated collection facilities or to a retailer (if you purchase a similar new one).
Introduction A direct insertion box, or DI box, converts unbalanced, high impedance, signals to balanced, low impedance signals providing the facility for connecting audio into 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 Front 1 2 3 4 5 6 5 6 Rear 1. INPUT Jacks – 1/4” hi-Z input jacks for connecting for instrument, line level, or speaker level audio. 2. THRU Jacks – 1/4” outputs for passing the input signal through to a stage amplifier or monitor system. 3. -15dB / -30dB Pad switch – When engaged, the input level is attenuated by either -15dB or -30dB to prevent distortion or when connecting to a speaker level output. 4.
Setup The MD2 Pro can be quite useful on stage or in the studio for connecting unbalanced audio sources or instruments with pickups. By utilizing the MD2 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 stereo keyboard connected to a keyboard amplifier and a PA system.
Connecting Speaker Level Signals The MD2 Pro provides the capability of tapping off the signals from amplifiers, such as the output of a guitar amp or any power amplifier. You can even use MD2 Pro to connect to the speaker output of a consumer stereo system to a mixer or PA system. WARNING: Be sure that the pad switch is set to the -30dB position before connecting the signal from the output of any amplifier. The following diagram shows how to connect the powered output of a guitar amplifier to a mixer.
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.