CX-PA1120 Power Amplifier

The CX-PA1120 is a 120 W amplifier unit equipped with a built-in 10-zone speaker selector, designed for the CX-1000 series IP communication system. It allows audio broadcasts from each intercom station and audio interface to each speaker zone. By registering audio files in the unit's built-in memory, Chime broadcast and EV broadcast can be made. It is equipped with 2 analog inputs, 1 recording output, and 10-zone speaker output which is individually controllable. The input and output volumes can be ad justed using the front panel-mounted volume knobs or by software. The sound quality of the input and output can also be adjusted by software. The CX-PA1120 is equipped with 24 V DC emergency cutoff input function, allowing it to be linked with emergency evacuation broadcast equipment.

It features a built-in ANC function that automatically adjusts the output volume according to the ambient noise when an ANC sensor microphone is connected. Even if the connection to the System manager is disconnected, emergency all-zone broadcasts can be made using the unit's audio input and output. Broadcasts and various functions can be started and stopped using the front panel-mounted direct keys.

(*1) 0 dB = 1V

Power Supply	240 V AC 50/60 Hz
Rated Output	120 W
Power Consumption	180 W (rated output), 55 W ( based on EN62368 )
Audio Input	1 channel, -60 dB (1)/-40 dB (1)/-20 dB (1)/0 dB (1) selectable, 10 kΩ, electronically balanced, phantom power supply available, removable terminal block (3 pins) 1 channel, -60 dB (1)/0 dB (1) selectable, 10 kΩ, electronically balanced, removable terminal block (3 pins)
Recording Output	1 channel, 0 dB (*1), 10 kΩ, electronically balanced, removable terminal block (3 pins)
Audio Bandwidth	200 Hz - 16 kHz
Signal to Noise Ratio	60 dB or more
Distortion	1 % or less at 1 kHz, rated power (20 kHz LPF (AUX-0025))
Speaker Output	10 channels, removable terminal block (10 pins x 2)
Output Voltage	100 V/70 V switchable
Volume Control	Audio input volume control x 2, Recording output volume control x 1, Speaker output volume control x 1
Signal Processing	Input channel: Gain, EQ x 2, Comp, AGC, Trim, Gate ( for VOX function) Output channel: Gain, EQ x 7, ANC
Network	Network I /F: 100BASE-TX Network protocol: TCP/IP, UDP, ARP, ICMP, HTTP, RTP, RTSP, IGMP, NTP, FTP, RSTP Audio packet transmission method: Unicast, Multicast Number of broadcasting destinations: Unicast (max. 1), Multicast (max. 2999) Connector: RJ45 connector x 2 Network cable: UTP (Cat5 or greater)
Audio Transmission Method	Sampling frequency: 48 kHz, 16 kHz (controllable on the software) Audio codec: PCM, G.722 Quantization bit depth: 16-bit Voice packet loss recovery: Silence insertion
Operation	Direct key x 10, Reset key x 1, CPU OFF switch x 1, Output voltage selection switch x 1, Input setting switch (input level setting (MIC/LINE selectable), phantom power setting) x 1
Indicators	LED indicators: LAN (green) x 2, POWER (green) x 1, RUN (green) x 1, STATUS (yellow, red, green) x 1, INPUT (green, red) x 2, REC OUT (green, red) x 1, OUTPUT (green, red) x 1, CPU OFF (red) x 1 Direct keys: SELECT (green) x 10, STATUS (yellow, red, green) x 10
Control Input	10 channels, no-voltage make contact input, open voltage: 24 V DC, short-circuit current: 5 mA or less, removable terminal block (12 pins x 2)
Control Output	10 channels, relay contact output, maximum contact capacity : 125 V AC/24 V DC, 4.0 A, removable terminal block (15 pins x 2)
Emergency Cutoff 24 V Input	1 channel, photo coupler input, input current: 5 mA or less, removable terminal block (2 pins)
Installation Method	Desktop, rack, or wall mounting (Rack or wall mounting needs optional brackets.)
Operating Temperature	0°c to +40 °c
Operating Humidity	90 %RH (no condensation)
Finish	Panel, Case: Pre-coated steel plate, black, 30% gloss Volume control section cover: ABS resin, gray smoke
Dimensions	420 (W) x 88.7 (H) x 326 (D) mm
Weight	6.6 kg
Accessory	Power cord (2 m (6.56 ft)) ···1, Removable terminal plug (2 pins) ···1, Removable terminal plug (3 pins) ···3, Removable terminal plug (2 pins) ···2, Removable terminal plug (10 pins) ···2, Removable terminal plug (15 pins) ···2, Plastic foot ··-4, Screw for fitting plastic foot ···4
Option	Wall mounting bracket: YC-850 Rack mounting bracket: MB-25B