Rated 4.9 (120 reviews)
The Ecler AURA-4B900 is a four-channel Class D installation amplifier rated at 4x 900W into 4 ohms. Each pair of channels can be set to low impedance (2, 4 or 8 ohms), 70V or 100V line, or bridge mode, giving up to 2000W per bridged pair from a 1U chassis. It is used for high-power multi-zone systems in bars, restaurants, hotels, retail, gyms and schools, function rooms and places of worship.
4x 900W
Into 4 ohms
900W
Per channel at 100V
2000W
Bridged, 4 ohms
1U
Rack height
Features
Four channels, 4x 900W into 4 ohms, 450W per channel into 8 ohms, 1000W into 2 ohms
Output mode set per pair of channels by rear DIP switch: low impedance, 70V or 100V line, or bridge
Bridged output of 2000W into 4 ohms or 1600W into 8 ohms
Link switch per input routes input 1 to other channels
Front panel level knobs, which can be locked or bypassed from rear panel switches
Auto standby when no signal is present, plus front panel standby button
Protection against DC, HF, short circuit and over-temperature, with clip limiter
Universal mains supply with power factor correction
Locking Euroblock connectors for inputs and outputs
Specifications
| Channels | 4 in, 4 out |
| Output power, all channels driven (1% THD) | 8 ohm: 450W, 4 ohm: 900W, 2 ohm: 1000W, 100V/70V: 900W per channel |
| Bridged output | 4 ohm: 2000W, 8 ohm: 1600W |
| Amplifier technology | Class D |
| Voltage gain | 34 dB |
| Input sensitivity | 0 dBV (1 Vrms) |
| Input impedance | 20 kohm, balanced |
| Maximum input level | +18 dBV (+20.2 dBu) |
| Frequency response | 15 Hz to 30 kHz |
| THD+N | <0.01% |
| Signal-to-noise ratio | 100 dBA |
| Crosstalk | >70 dB |
| Damping factor | >150 |
| Input connectors | 3-pin Euroblock, balanced, 3.5 mm pitch |
| Output connectors | 2-pin Euroblock, 7.62 mm pitch |
| Mains | 100 to 240V AC, 50/60 Hz, IEC C14 inlet, PFC >0.95 |
| Power draw at 230V | 1/8 power into 4 ohms: 637.6W; idle: 97.4W; standby: 2.3W |
| Efficiency | 80% |
| Cooling | 2 fans, 57 dBA maximum |
| Operating temperature | -10 to 50°C |
| Dimensions (W x H x D) | 484 x 44 x 411.6 mm, 1U rack |
| Weight | 7.7 kg |
