RCS Audio-Systems CPA-5480C Post Office, 480 W, 3 U

The CPA-5480 C is the most powerful model in the CPA-5000 compact amplifier series, offering 480 W RMS output power—making it ideal for medium to large-scale public address applications where speech clarity, reliability, and modular expansion are essential.

It features five individually switchable and controllable speaker zones, accessible directly from the front panel. Outputs support both 100 V and 70 V distribution systems as well as 8-ohm low-impedance loads. The unit can operate via mains power (230 V AC) or a 24 V DC backup, making it suitable for emergency paging systems.

Input versatility includes seven audio inputs: 4 mic/line inputs with advanced priority logic (Input 1 with VOX priority, Inputs 2–4 with contact-triggered priority over AUX 5–7). All microphone inputs are balanced and equipped with switchable phantom power. Line-level AUX inputs allow for background music or media players. AMP-IN and PRE-OUT connectors on the rear enable integration with external amplifiers or equalizers.

A designated media slot allows for the installation of an optional playback module. The MS-050P paging console can be connected via a 4-pin terminal, supporting gong activation and manual priority override. The gong and siren tones are remote-controllable and volume-adjustable from the rear panel.

Technical Data:

– Model: CPA-5480 C
– Output Power: 480 W RMS
– Frequency Response:
– Mic: –3 dB (200 Hz – 19 kHz)
– Line: –3 dB (35 Hz – 19 kHz)
– Total Harmonic Distortion (THD): < 0.5 % @ 1 kHz
– Inputs:
– Input 1 Mic: –50 dB (2.45 mV), 2 kOhm, balanced
– Inputs 2–4 Mic: –50 dB / Line: –10 dB (245 mV), balanced
– Inputs 5–7 AUX: –10 dB (245 mV), 5 kOhm, unbalanced
– Pack Unit: –10 dB, 10 kOhm, unbalanced
– PRE OUT: 0 dB (775 mV), 100 Ohm, unbalanced
– AMP IN: 0 dB (775 mV), 10 kOhm, unbalanced
– Speaker Outputs: 100 V / 70 V / 8 Ohm
– Tone Controls:
– Bass: ±10 dB @ 100 Hz
– Treble: ±10 dB @ 10 kHz
– Signal-to-Noise Ratio:
– Mic:

70 dB

– Line:

80 dB

– Power Consumption: max. 7.5 A
– Power Supply: 230 V AC (50–60 Hz) and 24 V DC
– Dimensions (W x H x D): 430 x 133 x 352 mm (3 RU)
– Weight: approx. 20 kg

Key Features:

– 5 controllable speaker zones (100 V / 70 V / 8 Ohm)
– VOX and contact-based input priority functions
– Balanced mic inputs with phantom power
– AMP-IN and PRE-OUT for system integration
– Remote-controllable gong and siren with volume adjustment
– Media slot for optional playback module
– Supports up to 3 MS-050P paging microphones
– Dual power supply for fail-safe operation