Pro Co Sound AV1A Audio-Visual Passive Interface Box, 20Hz-20kHz Frequency Response, <200 Ohms Output Impedance

Why settle for less when you can have the Pro Co Sound AV1A Audio-Visual Passive Interface Box This versatile device is designed to seamlessly connect the line or speaker level outputs of movie projectors, audio and video playback devices, and more, to the microphone inputs of house or portable P.A. systems. It's an ideal choice for a variety of settings, from school auditoriums and lecture halls to civic meetings and corporate board rooms.

The AV1A stands out with its superior audio interfacing and isolation capabilities, offering a wide frequency response range of 20Hz-20kHz and low distortion. It features three different types of input connectors - 1/4" (6.3mm) T/R/S phone, 2 RCA-type phono, and 3.5mm T/R/S mini jacks - to ensure easy connection with most equipment.

This interface box is equipped with a Line/Speaker attenuator switch, allowing it to be safely connected to the speaker outputs of older tube-type equipment. Its 16-ohms, 5-watt load resistor simulates the speaker impedance to prevent damage to the amplifier output stage, while a high-frequency filter reduces hiss from noisy electronics.

The AV1A also includes a HI/LO attenuator switch for handling line output sources at either hi-fi" -10 dBV or professional" 4dBm levels. Its DBT-1 transformer provides a floating 150 ohms output with a standard 3-pin male XLR type connector, ensuring easy connection to most P.A. system mixers or mixer/amplifiers using a standard microphone cable.

The GND/LFT switch is designed to eliminate hum and buzz from AC ground loops between equipment. For added versatility, the AV1A also features a 1/4" (6.3mm) unbalanced line-level output.

Built to last, the AV1A's construction and components are top-grade, ensuring reliable operation in educational, institutional, and A/V rental settings. Its Uni-box" enclosure, made of extruded aluminum side channels and 16-gauge steel top, bottom, and end plates, is designed to protect its switches and connectors from accidental damage. The use of steel also provides excellent magnetic shielding for the transformer from EM/RF fields.

Finished with a durable black textured powder coat on the end plates and black anodized aluminum side channels, the AV1A is as stylish as it is functional. Its control and connector identification graphics are incorporated into a durable Lexan overlay on the top panel, making it easy to use. The uniquely slotted side channels allow for stacking on top or strapping side-to-side of virtually any number of Pro Co TradeTools devices using the Uni-box construction.

In summary, the Pro Co Sound AV1A Audio-Visual Passive Interface Box offers a comprehensive solution for your audio-visual interfacing needs, delivering high-quality sound with less than 200 Ohms output impedance.