AURA-1B300 is one channel, 1x300W RMS @4Ω, high efficiency amplifier (class D). Compatibility with both Low and Hi impedance configurations. 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: 1
• Output connection type: 2-pin Euroblock.  Pitch: 5,08mm
• Output configuration: 2Ω, 4Ω, 8Ω, 100V and 70V
• Number of input channels: 1
• Input connection type: 3-pin Euroblock, balanced, pitch 3,5mm

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

• Max output power @ 8Ω: 300W
• Max output power @ 4Ω: 300W
• Max output power @ 2Ω: 300W
• Max output power @ 100V: 300W
• Max output power @ 70V: 300W

Signal

• Voltage gain: 34dB
• Input sensitivity: 0 dBV 2,21 dBu 1 Vrms
• Input impedance: 20kΩ balanced
• Max input level: +20,8dBV 23 dBu
• Frequency response: 2Ω, 4Ω, 8Ω, 100V and 70V
• THD + Noise: <0,1%  ( @1kHz, from 0,1W to Full Power)
• SNR: 100dBA
• Crosstalk: >70dB (@1kHz)
• CMRR: >55 (from 20Hz to 20kHz)

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: 134,0W 198 VA
• Current Draw: 0,9 Arms
• Thermal Loss: 50,7 kcal/h 201,4 BTU/h

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

• Power: 79,4W 142.0 VA
• Current Draw: 0,65 Arms
• Thermal Loss: 36,0  kcal/h 143,0 BTU/h

Power & Heat @230Vac - Idle

• Power: 26,0W 85.0 VA
• Current Draw: 0,4 Arms
• Thermal Loss: 22,4 kcal/h 88,7 BTU/h

Power & Heat @230Vac - Standby/Sleep Mode

• Power: 2,7W 58,0 VA
• Current Draw: 0,26 Arms
• Thermal Loss: 2,3 kcal/h 9,2 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: 56%
• Cooling: 2 fans
• Maximum fan noise: 57 dBA

Protections

• AC protection: Yes
• 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 2Ω/4Ω/8Ω/70V/100V
• RUN/SLEEP mode: Auto standby function Front panel button
• Power ON/OFF: Front panel switch

Settings

• Attenuators: Front panel knobs per channel
• Output settings: Lo-Z/Hi-Z/70V/100V output selection by pair of channels
• Auto standby function: Front panel button
• Auto standby threshold: -40dB
• Auto standby time: 90 seconds
• Power ON/OFF: Front panel switch

Monitoring

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

Physical

• Operating temperature: -20⁰ to 40⁰ C -4⁰ to 104⁰ F
• Operating humidity: 10-90% RH, non-condensing
• Storage temperature: -40⁰ to 70⁰ C -40⁰ to 158⁰ F
• Storage humidity: 10-95% RH, non-condensing
• Installation options: Rack 19" installation & desktop
• Included accessories: EU power cord, UK,US and CN power cord adapters, IEC Power Cord, x1 Euroblock 3-pin connectors (blue for Inputs), x1 Euroblock 2-pin connectors (green for Outputs), Rear Rack Kit, 3M rubber foot (4pcs)
• Dimensions: 484 x 44 x 296.6mm / 19 x 1.73 x 11.67 in.  (WxHxD)
• Weight: 3.86kg / 8.50 lb
• Shipping dimensions: 590 x 80 x 474mm / 23.23 x 3.15 x 18.66 in.  (WxHxD)
• Shipping weight: 6.46kg / 14.24 lb