User’s Manual ASA Series Audio Summing Amplifiers www.extron.com Extron Electronics, USA Extron Electronics, Europe Extron Electronics, Asia Extron Electronics, Japan 1230 South Lewis Street Anaheim, CA 92805 USA 714.491.1500 Fax 714.491.1517 Beeldschermweg 6C 3821 AH Amersfoort The Netherlands +31.33.453.4040 Fax +31.33.453.4050 135 Joo Seng Road, #04-01 PM Industrial Building Singapore 368363 +65.6383.4400 Fax +65.6383.
Precautions Safety Instructions • English This symbol is intended to alert the user of important operating and maintenance (servicing) instructions in the literature provided with the equipment. This symbol is intended to alert the user of the presence of uninsulated dangerous voltage within the product's enclosure that may present a risk of electric shock. Caution Read Instructions • Read and understand all safety and operating instructions before using the equipment.
Table of Contents Chapter 1 • Introduction .......................................................... 1-1 About the ASA Series .......................................................... 1-2 Features ...................................................................................... 1-2 Chapter 2 • Installation and Operation ......................... 2-1 Mounting the ASA 101 ....................................................... 2-2 Mounting the ASA 204 and ASA 304 ..........................
Table of Contents, cont’d ASA Series 1 Chapter One Introduction About the ASA Series Features ii ASA Series • Table of Contents
Introduction About the ASA Series The Extron ASA series high-performance audio summing amplifiers convert stereo audio signals into balanced or unbalanced mono signals. The series consists of the following three models: ASA 101 — The ASA 101 is a single, ultra-compact passive summing adapter with two male RCA pigtail connectors for one unbalanced stereo audio input. The unit has one 3-pole captive screw connector for one balanced or unbalanced mono output.
Introduction, cont’d Zone 2 Ceiling Speakers Zone 1 Ceiling Speakers ASA Series Program Speakers Audio Amplifier Distributed Sound System NO MO ST ER EO INPU Extron ASA 304 W PO L R L L PU 3 TS 1 R DIO AU AD QU MING M RS SU IFIE PL AM ER OUT 3 2 TS Distributed Sound System A AS 4 30 E L AR SP UNBA ON 4 BA L R 4 1 Mono Audio Matrix R 2 L V 12 MAX .
Installation and Operation Mounting the ASA 101 The ASA 101 is ultra-compact, and can fit in many convenient small spaces. Use the supplied double-sided Velcro® tape to mount the unit on a wall or piece of furniture. Mounting the ASA 204 and ASA 304 The ASA 204 and ASA 304 can be set on a table, or mounted on a rack shelf, under a desk or tabletop, or on a projector mount. Tabletop use Four self-adhesive rubber feet are included with the ASAs.
Installation and Operation, cont’d Furniture mounting Furniture mount the ASA using the optional mounting kit (part #70-212-01) as follows: Projector mounting Projector mount the ASA using the optional mounting kit (part #70-217-01) as follows: 1. Remove rubber feet if they were previously installed on the bottom of the ASA. 1. Remove rubber feet if they were previously installed on the bottom of the ASA. 2. Attach the furniture mounting brackets to the ASA with the machine screws provided. 2.
Installation and Operation, cont’d ASA 101 Features and Cabling ASA 204/ASA 304 Rear Panel Features and Cabling 2 1 1 QUAD AUDIO SUMMING AMPLIFIERS MONO OUTPUTS STEREO INPUTS L POWER 12V .2A MAX 2 1 3 4 SPARE UNBAL ON 3 2 1 2 R R R ASA 204 L L 3 4 BAL 1 2 Input plugs — Plug the white RCA connector into the left output of the stereo source device. Plug the red RCA connector into the right output of the stereo source device.
Installation and Operation, cont’d 2 Output connectors — Plug the mono audio output devices into these 5-pole captive screw connectors. Two devices can be connected to each connector. Wire the connectors as shown below. Tip Ring Sleeve Tip See Caution Sleeve Balanced Output Unbalanced Output Connect the sleeve to ground (Gnd). Connecting the sleeve to a negative (-) terminal will damage the audio output circuits.
Specifications, Part Numbers, and Accessories Audio Gain ASA 101 ............................. +6dB (with balanced output), 0dB (with unbalanced output) Input Channel Output Wiring Left Right Unbalanced Balanced signal signal ——* signal ——* signal 0dB 0dB 0dB +6dB +6dB +6dB *Tested with this input unplugged ASA 204, ASA 304 ........... Generally unity. Actual gain depends on whether or not both inputs have signals and also on the output wiring and DIP switch settings. See the table below.
Specifications, Part Numbers, Accessories, cont’d General Included Parts Power — ASA 204, ASA 304 ...... 100VAC to 240VAC, 50/60 Hz, 3 watts, external, autoswitchable; to 12VDC, 1 A power supply. Product requires 0.2 A. Temperature/humidity .............. Storage -40° to +158°F (-40° to +70°C) / 10% to 90%, noncondensing Operating +32° to +122°F (0° to +50°C) / 10% to 90%, noncondensing Rack mount ASA 101 .............................
Specifications, Part Numbers, Accessories, cont’d A-6 ASA Series • Specifications, Part Numbers, and Accessories
