AURA-2B900 is two channels, 2x900W RMS @4Ω, high efficiency amplifier (class D). Compatibility with both Low and Hi impedance configurations and supporting dual or bridge mode (@4/8Ω). AURA Series are built with the highest robustness for long lasting performances with special power supply circuitry designed for optimized electrical consumption with fan cooling system. AURA Series also features the possibility of linking channels to the first input by selecting it on the rear panel, as well as auto stand-by,  overload and thermal protection, PFC and anti-clipping system. The front panel volume knobs can be locked using rear panel switches for added security.

Channels

• Number of output channels: 2
• Output connection type: 2-pin Euroblock.  Pitch: 7,62mm
• Number of input channels: 2
• Input connection type: 3-pin Euroblock, balanced, pitch 3,5mm
• Input configuration: Input link to CH1 selector per input

Output Power - All Channels Driven @1Khz @Cf9Db @ 1%Thd

• Max output power @ 8Ω: 450W
• Max output power @ 4Ω: 900W
• Max output power @ 2Ω: 1000W
• Max output power @ 4Ω bridge mode: 2000W
• Max output power @ 8Ω bridge mode: 1600W
• Max output power @ 100V: 900W
• Max output power @ 70V: 900W

Output Power - Single Channel Driven @1Khz @Cf9Db @ 1%Thd

• Max output power @ 8Ω: 450W
• Max output power @ 4Ω: 900W
• Max output power @ 2Ω: 1200W
• Max output power @ 4Ω bridge mode: 2000W
• Max output power @ 8Ω bridge mode: 1600W
• Max output power @ 100V: 900W
• Max output power @ 70V: 900W

Signal

• Voltage gain: 34dB
• Input sensitivity: 0 dBV 2,21 dBu 1 Vrms
• Input impedance: 20kΩ balanced
• Max input level: +18dBV 20,21 dBu
• Frequency response: 15Hz - 30kHz
• THD + Noise: <0,01%
• SNR: 100dBA
• Crosstalk: >70dB
• CMRR: > 55 Typ
• Damping factor: >150

Electrical

• Power supply: Universal, regulated SMPS with PFC
• AC mains requirement: 100-240V @ 50-60Hz (±10%)
• Power factor correction: > 0,93
• AC mains connector: IEC C14 inlet

Power & Heat @230Vac - 1/4 Power, @ 4Ω (All Channels Driven)

• Power: 571,9W 626 VA
• Current Draw: 2,73 Arms
• Thermal Loss: 104,8 kcal/h 416,01 BTU/h

Power & Heat @230Vac - 1/8 Power, @ 4Ω (All Channels Driven)

• Power: 328,2W 378 VA
• Current Draw: 1,64 Arms
• Thermal Loss: 88,8  kcal/h 352,2 BTU/h

Power & Heat @230Vac - Idle

• Power: 59,6W 129 VA
• Current Draw: 0,56 Arms
• Thermal Loss: 51,3 kcal/h 203,4 BTU/h

Power & Heat @230Vac - Standby/Sleep Mode

• Power: 2,1W 79,8 VA
• Current Draw: 0,35 Arms
• Thermal Loss: 1,8 kcal/h 7,2 BTU/h

Power & Heat @120Vac - 1/4 Power, @ 4Ω (All Channels Driven)

• Power: 587,5W 603 VA
• Current Draw: 5,33 Arms
• Thermal Loss: 118,3 kcal/h 469,3 BTU/h

Power & Heat @120Vac - 1/8 Power, @ 4Ω (All Channels Driven)

• Power: 335,9W 438 VA
• Current Draw: 3,05 Arms
• Thermal Loss: 95,4 kcal/h 378,5 BTU/h

Power & Heat @120Vac - Idle

• Power: 60,3W 79 VA
• Current Draw: 0,68 Arms
• Thermal Loss: 51,8 kcal/h 205,6 BTU/h

Power & Heat @120Vac - Standby/Sleep Mode

• Power: 1,3W 23,9 VA
• Current Draw: 0,20 Arms
• Thermal Loss: 1,1 kcal/h 4,4 BTU/h

Technologies

• Amplification technology: Class D
• Energy saving: Auto standby function selectable
• Efficiency: 77%
• Cooling: 2 fans
• Maximum fan noise: 57 dBA

Protections

• DC protection: Yes
• HF protection: Yes
• Short-circuit protection: Yes
• Clip limiter: Yes
• Thermal protection: Yes

Local Control

• Attenuators: Front panel knobs per channel VOL (default)/BYPASS option
• Output mode settings: Back panel Dipswitch by pairs of channels DUAL/BRIDGE LoZ/70V/100V
• RUN/SLEEP mode: Auto standby function Front panel button
• Power ON/OFF: Front panel switch

Monitoring

• Signal Present: SIGNAL LED (Green) per channel
• Cliping: CLIP LED (Red) per channel
• Protect: PROT LED (Red) by pairs of channels
• Standby: AUTO STANDBY ON/OFF LED (Green) per unit
• Standby / Mute: AUTO STANDBY (Orange) by pairs of channels
• Thermal: TH LED (Orange) by pairs of channels
• On: ON LED (Green) per unit
• Link: LINK LED (White) per channel

Physical

• Operating temperature: Min:-10⁰ ; 14⁰ C Max: 50⁰ ; 122⁰ F
• Operating humidity: 5 - 85% RH, non-condensing
• Storage temperature: Min:-10⁰ ; 14⁰ C Max: 50⁰ ; 122⁰ F
• Storage humidity: 5 - 85% RH, non-condensing
• Dimensions: 484 x 44 x 411.6mm / 19 x 1,73 x 16.20 in. (WxHxD)
• Weight: 6.75kg / 14.88 lb
• Shipping dimensions: 590 x 80 x 590mm / 23.23 x 3.15 x 23.23 in.
• Shipping weight: 9.5kg / 20.94 lb