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• 4 digital audio inputs, 1 digital audio output
• Supports digital coaxial and optical connections
• Automatically selects the active audio input
• Cross-converts optical and coaxial signals
• Easily switch between CD, DVD, satellite, & cable

Digital Audio Switcher with AutoSelect

1177A FEATURES:

• Four audio inputs, one audio output
• Coaxial and optical digital audio 
• Automatic digital audio cross-conversion
• AutoSelect

 technology

• Manual selection override
• All metal construction
• Made proudly in our own US factory

SPECIFICATIONS:

1177A  rear panel

The Model 

1177A

 is Audio Authority’s redesigned 4-in, 1-out AutoSelect

 digital audio switcher — the perfect solution when 

digital audio sources outnumber your system’s digital audio inputs. The 

1177A

 switches both digital coaxial and optical audio 

including automatic cross-conversion between digital audio formats, outputting both simultaneously. Its innovative AutoSelect 
logic automatically chooses the active source, or the selection can be controlled manually.  

Satellite Tuner

Source #4

Cable Set Top Box

Source #3

DVD Player

Source #1

CD Player

Source #2

Digital Receiver/Amplifier

Model 1177A

4

3

2

1

Coaxial or Optical

Digital Audio Output

Coaxial or Optical Digital

Audio Input to Receiver

Easily switch between multiple digital audio sources in your system

Analog/Digital

Digital

Digital Input/Output Type

optical in/o ut

Input Impedance

75 ohms

Min Load Impedance

75 ohms

Multi-channel

Yes

DC Input Connector

5.5 x 2.1mm

DC Input Voltage/Polarity

12V/either polarity

Max DC Input Current

150mA

Power Supply

571-013

Size (H-W-D, inches)

2.25 x 5.6 x 4.7

Enclosure:

Steel

Warranty:

One year replacement

Product Focus

Model 1177A

2048 Mercer Road, Lexington, KY 40511-1071 USA

Phone: 859-233-4599 • Fax: 859-233-4510

Customer Toll-Free USA & Canada: 800-322-8346

www.audioauthority.com

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