BOSE / PS404D

BOSE / PowerShare PS404D is a power amplifier for equipment that supports both low impedance and high impedance transmission up to 100V.

■Rated output
Amplifier power: 4 x 100 W (THD+N < 0.04%, 1 kHz, 4-8 Ω, 70/100V)
Maximum power per channel: 400 W @ 4-8 Ω, 70/100V
Gain (Low-Z mode): 30.2 dB
Gain (70V mode): 35.0 dB
Gain (100V mode): 38.0 dB

■Audio performance
Frequency response 4-8 Ω: 20 Hz to 20 kHz (+/- 0.5 dB @ 1 W), 70/100V: Same as 4-8 Ω (50 Hz high-pass filter applied)
Channel separation (crosstalk) > 85 dB @ 1 kHz, > 65 dB @ 20 kHz
Signal-to-noise ratio 100 dB (at rated output, A-weighted)

■Audio input analog / DANTE
Input channels: Balanced (x4) / Digital (x4)

Analog / DANTE
Connector: Euroblock (12 pin) / RJ-45 (primary)

Input impedance: 20kΩ
Maximum input level: 20 dBu (at 12 dBu sensitivity setting)
Sensitivity: 4/12 dBu (low/high resolution)

■Audio output (analog)
Output 4
Connector Euroblock (8 pin male)

■DSP
A/D and D/A converter: 24 bit/48 kHz
Processing functions: Matrix mixer, speaker EQ, real-time 9-band parametric EQ, Vpeak/Vrms limiter, delay, bandpass,
Mute/output polarity reversal
Audio Latency: <1ms (analog input to speaker output)

■Indicators and controls
Power LED Steady green: Power on. Flashing green: Standby mode. Orange light: Temperature abnormality. Solid red: Power failure.
Input signal LED Green: Input signal present. Orange: Near input clipping. Red: Input clipping status. Lit in red: An error has occurred.
Output limit LED Orange: Output limiter is working. Flashing red: Amplifier is muted. Lit in red: An error has occurred.
Controls, front panel Power on/off
Controls, rear panel output attenuator

■Electrical specifications
Power supply voltage: 100~240VAC (±10%, 50/60Hz)
Power consumption: 120 VAC: 14W (standby), 500W (max) 230 VAC: 14W (standby), 500W (max)
Power connector: Standard IEC (C14)
Maximum inrush current: 14.14 A (230 VAC/50 Hz), 8.04 A (120 VAC/60 Hz)
Protection: High temperature, output short circuit, extra high frequency (EHF), excessively low/high supply voltage

■Physical specifications
Dimensions (H x W x D): 44 mm x 483 mm x 414 mm
Packing mass: 7.8 kg
Mass: 6.4 kg
Cooling system: Microprocessor control, multiple variable speed fans, left-to-right air cooling

■Others
Input (control): Mute input control