The DSA254 OEM is an audio amplifier module designed for use in both conventional low impedance loudspeaker systems and 70 Vrms and 100 Vrms distribution systems. The module supports multiple output configurations, including single ended, bridge tied load and parallel bridge tied load operation, allowing adaptation to different system requirements.
The amplifier is intended for integration in a wide range of professional audio applications where flexibility in loudspeaker topology is required. A single DSA254 OEM based design can be used for low impedance installations as well as high voltage distribution systems without changes to the amplifier topology.
The DSA254 OEM is based on NCOREx® Class D amplifier technology. This architecture supports stable operation across a wide range of load impedances, allowing the module to drive both low impedance loudspeakers and high impedance distribution lines with consistent electrical behaviour. The design also supports reliable operation in installations with long cable runs, commonly encountered in 70 V and 100 V systems.
For high voltage distribution applications, the DSA254 OEM uses high voltage semiconductor output stages to drive 70 V and 100 V lines directly. This removes the need for an external step up transformer, reducing system weight and simplifying mechanical and electrical integration.
The DSA254 OEM is intended for professional audio systems where a single amplifier platform must support multiple output configurations and loudspeaker types. Its design allows system designers to cover a broad range of applications using one amplifier module.
HIGHLIGHTS
- • Highly modular
- • Capable of both LowZ and HighZ operation
- • Designed to fit in a 1U rack space
FEATURES
- • 1Ch, 2Ch, 3Ch and 4Ch configurable
- • 70V and 100V compatible
- • NCOREx® technology
- • I²C compatible
PROTECTIONS
- • Overcurrent protection
- • DC error detection
- • Over- and undervoltage protection
- • Over temperature protection
- • Short circuit protection
POSSIBLE APPLICATIONS
- • 70V/100V Distribution Systems
- • Multichannel Amplifier Systems
- • Line Array and Immersive Systems
- • Active Loudspeakers; for home and professional use
- • Power Amplifiers; for home and professional use
| Output Power (2Ω): | 150W (Max), 150W (BTL), 500W (PBTL) |
|---|---|
| Output Power (4Ω): | 300W (Max), 300W (BTL), 1000W (PBTL) |
| Output Power (8Ω): | 400W (Max), 600W (BTL), 1450W (PBTL) |
| Distortion: | 0.005%, 20hZ < f < 20kHz. Pout = 1W |
| Output Noise: | 18 µV |
| Power Bandwidth: | 20Hz - 35kHz |
| Frequency Response: | DC 51kHz +0/-3dB. All loads |
| Power Supply Voltage: | 35HV+/- (Min), 63HV+/- (Typ), 98 HV+/-(Max) |
| Idle Power: | 9W (Max) - All channels total. Low idle mode, at +/-85V supply voltage, 16.5W (Max) - All channels total. High idle mode, at +/-85V supply voltage |
| Output impedance: | 0.6mΩ (Min) - 7mΩ (Max) |
| Technology: | NCOREx® |
| 70V and 100V Capable: | Yes |