THE HEART OF EVERY THEORY SYSTEM:

THEORY AMPLIFIED LOUDSPEAKER CONTROLLER

At the heart of every Theory system lies an Amplified Loudspeaker Controller (ALC). The ALC-1809B when used as the core of a 3.1, 5.1, 5.2, 5.3, 7.1, 7.2 or 5.2.2 ATMOS surround sound system automatically configures itself for high-resolution DSP processing of the loudspeakers purchased and sets audio levels within the system. All that is required from the installer is input of the listening distances and formatting of the decoding mode of surround sound processor.

The ALC handles the rest.

For advanced applications, the ALC-1809B is a virtual audio swiss-army knife: including 9-high power amplifier channels, 8 balanced analog audio inputs, 1 mic/line level input (software selectable), 96kHz/32-bit DSP processing including full signal routing, gain adjustment, 8x8 matrix bass-management, 8x8 matrix mixing, 80 parametric EQ’s, automatic audio signal ducking for intercom and paging (perfect to allow Amazon Alexa and other voice assistants to page any or all of the distributed audio system channels), Internal band-limited and full band pink noise and sine sources, and up 75msec of delay per channel.

All in a fan-less, stylish, 1U chassis.

 

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ALC-1809B 9-CHANNEL AMPLIFIED LOUDSPEAKER CONTROLLER

Description: 9-Channel Amplified Digital Loudspeaker Controller

Inputs: 8 x Balanced Analog Audio w Loop Outputs (1 mic/line level switchable)

Outputs: 9 x Speaker Outputs

8 x Balanced Analog Audio Looping Outputs

12VDC/Contact Closure Trigger Loop Output

Trigger: +12VDC or Contact Closure Trigger Input w Loop

Surround Formats Supported: 3.1, 3.2, 3.3, 5.1, 5.2, 5.3, 7.1, 7.2, 5.2.2 ATMOS

Audio Operation: 96kHz/24-bit

On-Board DSP: 96kHz/32-bit

DSP Features:

Automatic Configuration of Surround System Settings

Signal Routing

Gain

Delay (up to 75msec per channel)

Parametric EQ

Automatic Audio Ducking

8 x 8 Matrix Mixer

8 Stereo + 4 mono Signals

Internal Sine and Pink Noise Sources

Bandwidth: 5.5Hz-40.6kHz, -6dB

Frequency Response: 20Hz-20kHz, +/-0.2dB

Amplifier Power Output:: Channels 0-1-2: 300W, 4-ohms

Channels 3-8: 100W, 4-ohms, bridgeable to 300W*

Voltage Gain (all channels): 30dB

Input Sensitivity:

Channels 0-2: 1.1V

Channels 3-8: 660mV

Power Requirements:

Standby: 16W

Idle: 41W

(1/8 power, all ch. driven): 281W

Idle Noise (speaker program, typ., A-wt.):

Channels 0-2: -82dBV (0.00008V)

Channels 3-8: -80dBV (0.00010V)

Signal to Noise Ratio:

Channels 0-2: 108dB

Channels 3-8: 105dB

Distortion (1kHz, 1dB below max output): <0.02%

AC Operation: 100V-240VAC, 50-60Hz

Finish: Matte Bright Aluminum

Dimensions: 1.75" H x 17" W x 15" D

1.75" H x 19" W x 15" D w Rack Ears

Weight: 13 lbs.

SUGGESTED US RETAIL PRICE: $3,300each

*Bridged channels ok for sb speaker models only, not for subwoofer use.

 

ALC-1809B 9-CHANNEL AMPLIFIED LOUDSPEAKER CONTROLLER - FRONT VIEW

ALC-1809B 9-CHANNEL AMPLIFIED LOUDSPEAKER CONTROLLER - FRONT VIEW


ALC-1809B 9-CHANNEL AMPLIFIED LOUDSPEAKER CONTROLLER - REAR VIEW

ALC-1809B 9-CHANNEL AMPLIFIED LOUDSPEAKER CONTROLLER - REAR VIEW


ALC-1809B 9-CHANNEL AMPLIFIED LOUDSPEAKER CONTROLLER - 3 X 300W SUBWOOFER OUTPUTS

ALC-1809B 9-CHANNEL AMPLIFIED LOUDSPEAKER CONTROLLER - 3 X 300W SUBWOOFER OUTPUTS


ALC-1809B 9-CHANNEL AMPLIFIED LOUDSPEAKER CONTROLLER - MIC/LINE INPUT FOR INTERCOM/PAGING

ALC-1809B 9-CHANNEL AMPLIFIED LOUDSPEAKER CONTROLLER - MIC/LINE INPUT FOR INTERCOM/PAGING