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. 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 4 Front 5 Rear 1. POWER Indicator – This LED illuminates when the MDA1 is powered on. The MDA1 can receive power from either the intern 9 Volt battery or from a mixer’s 48-volt phantom power. 2. INPUT – 1/4” hi-Z input jack for connecting for instruments, line level, or speaker level audio. If there is no cable connected to the INPUT jack, the MDA1 will power off. This prevents the battery from draining when the direct box is not in use. 3.
Callouts 6 7 Side 6. -15dB Pad switch – When engaged, the input level is attenuated by either -15dB to prevent distortion or when connecting a high level signal to the INPUT jack. 7. GROUND LIFT – When the switch is engaged, the input ground (shield) is disconnected. 8. Battery Door – Install a standard 9 Volt battery by opening the battery door and attaching the battery to the terminal connector.
Powering the MDA1 The MDA1 can operate on a single 9 Volt battery or standard 48 volt phantom power. Whenever phantom power is present on the XLR cable that is connected to the Balanced Output, the MDA1 plus will automatically switch to phantom power and disconnect the 9 Volt battery. In fact, when the Battery switch is in, the MDA1 will sense the voltage and select which is greater. The Phantom/ Battery switch can be used to turn off the battery power when the unit is not in use.
Specifications Type Mono Active Direct Box Frequency Response 18Hz to 35kHz -3dB Maximum Input +2dBu (9 Volt Battery) Gain +4.8dB Dynamic Range 105dB @ Balanced Output Noise Floor -98dB (Pad Off) Total harmonic distortion <0.
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.