AURA-4B150 4x 150W Low Impedance / 100V Installation Amplifier

Channels

Number of output channels: 4 Output connection type: 4-pin Euroblock.  Pitch: 508mm Output configuration: 2Ω 4Ω 8Ω 100V 70V and 4/8Ω in Bridge Mode Number of input channels: 4 Input connection type: 3-pin Euroblock balanced pitch 35mm Input configuration: Input link to CH1 selector per input

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

Max output power @ 8Ω: 150W Max output power @ 4Ω: 150W Max output power @ 2Ω: 150W Max output power @ 4Ω bridge mode: 300W Max output power @ 8Ω bridge mode: 300W Max output power @ 100V: 150W Max output power @ 70V: 150W

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

Max output power @ 8Ω: 150W Max output power @ 4Ω: 150W Max output power @ 2Ω: 150W Max output power @ 100V bridge mode: 300W Max output power @ 70V bridge mode: 300W Max output power @ 100V: 150W Max output power @ 70V: 150W

Signal

Voltage gain: 34dB Input sensitivity: 0 dBV221 dBu1 Vrms Input impedance: 20kΩ balanced Max input level: +18dBV2021 dBu Frequency response: 15Hz - 30kHz (-3dB 1W any load) THD + Noise: 70dB (@1kHz) CMRR: > 55 Typ (from 20Hz to 20kHz)

Electrical

Power supply: Universal regulated SMPS with PFC AC mains requirement: 100-240V @ 50-60Hz (±10%) Power factor correction: > 077 AC mains connector: IEC C14 inlet

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

Power: 7992W859 VA Current Draw: 375 Arms Thermal Loss: 1713 kcal/h6799 BTU/h

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

Power: 4639W516 VA Current Draw: 224 Arms Thermal Loss: 1410 kcal/h5594 BTU/h

Power & Heat @230Vac - Idle

Power: 60W1644 VA Current Draw: 070 Arms Thermal Loss: 516 kcal/h2048 BTU/h

Power & Heat @230Vac - Standby/Sleep Mode

Power: 23W814 VA Current Draw: 035 Arms Thermal Loss: 20 kcal/h78 BTU/h

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

Power: 8285W844 VA Current Draw: 750 Arms Thermal Loss: 1965 kcal/h7798 BTU/h

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

Power: 4677W489 VA Current Draw: 431 Arms Thermal Loss: 15201 kcal/h6031 BTU/h

Power & Heat @120Vac - Idle

Power: 994W844 VA Current Draw: 102 Arms Thermal Loss: 855 kcal/h3393 BTU/h

Power & Heat @120Vac - Standby/Sleep Mode

Power: 15W239 VA Current Draw: 020 Arms Thermal Loss: 13 kcal/h501 BTU/h

Technologies

Amplification technology: Class D Energy saving: Auto standby function selectable Efficiency: 50% 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 channelVOL (default)/BYPASS option Output mode settings: Back panel Dipswitch by pairs of channelsBRIDGE/2Ω/4Ω/8Ω/70V/100V RUN/SLEEP mode: Auto standby functionFront panel button Power ON/OFF: Front panel switch

Settings

Attenuators: Front panel knobs per channel Output settings: 2Ω/4Ω/8Ω/70V/100V/Bridge Mode 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 UKUS and CN power cord adapters IEC Power Cord x4 Euroblock 3-pin connectors (blue for Inputs) x2 Euroblock 4-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: 5kg / 1102 lb Shipping dimensions: 590 x 80 x 474mm / 23.23 x 3.15 x 18.66 in.  (WxHxD) Shipping weight: 7.6kg / 16.76 lb