The UP 8504 power amplifier delivers four channels of 125 W each, optimized for public address and emergency voice evacuation systems. Powered by RCF’s advanced digital Class D amplification technology, it ensures exceptional energy efficiency and reliable performance even during power outages, thanks to its dual AC and 48 V DC power inputs. The amplifier features two audio inputs per channel, status LEDs on the front panel, and a priority circuit for critical announcements. Its transformer-free design helps maintain a compact 1U rack size and lightweight construction. The UP 8504 complies with the EN 54-16 standard when integrated with the DXT 7000 Voice Alarm System, making it a dependable solution for life safety and high-quality audio delivery.
Features
4 x 125 W Class D amplifier channels for 100 V systems
2 audio inputs per channel for flexible signal routing
Dual AC (220–240/115 V) and 48 V DC power input
Built-in priority circuit for emergency override
No output line transformers for compactness
LED indicators for power and status on front panel
Full digital architecture ensures high efficiency
Forced-air cooling and comprehensive protection features
EN 54-16 certified for use in emergency evacuation systems
1U rack-mountable steel chassis in black finish
Specifications
| Amplifier Class | D |
| Output Power @ 100 V | 4 x 125 W |
| Frequency Response (-3 dB) | 40 Hz ÷ 16,000 Hz |
| Crosstalk | <60 dB |
| Distortion (THD+N) | <0.3 % @ 1 kHz nominal power |
| Total Number of Inputs | 8 |
| Balanced Inputs | 8 |
| Mono Inputs | 4 |
| Stereo Inputs | 4 |
| Line Inputs | 8 |
| General Purpose Inputs (GPI) | 6 |
| General Purpose Outputs (GPO) | 1 |
| Priority Circuit | Yes |
| Cooling | Forced |
| Short Circuit Protection | Yes |
| Thermal Protection | Yes |
| DC Protection | Yes |
| Fuses | Yes |
| Operating Voltage | 220-240/115 V~ 50/60Hz |
| Voltage Selection | Internal |
| DC Power Support | Yes (48 V) |
| Power Consumption (Max) | 800 W |
| Safety Compliance | CE compliant |
| EN 54-16 Certification | Yes |
| CPR Number | 1438-CPR-1093 |
| Cabinet/Case Material | Metal |
| Color | Black |
| Rack Mounting | 19″, 1U |
| Height | 44 mm / 1.73 inches |
| Width | 482 mm / 18.98 inches |
| Depth | 375 mm / 14.76 inches |
| Weight | 5.4 kg / 11.9 lbs |
| Package Height | 170 mm / 6.69 inches |
| Package Width | 575 mm / 22.64 inches |
| Package Depth | 480 mm / 18.9 inches |
| Package Weight | 7.4 kg / 16.31 lbs |
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