Key Specifications

Product Model

MPA-4250 Power / Mixer Amplifier

AC Power Supply Input

AC 110V–120V / 220V–240V ~ 50Hz/60Hz

Rated Output Power

250 W x 4 (1 kHz Sine Wave, THD ≤ 1%, 4 Ω Load)

Power Consumption

Rated: 1000 W (1 kHz Sine Wave, THD < 1%, 4 Ω Load)
Maximum: 1449 W (1 kHz Sine Wave, THD ≤ 1%, 4 Ω Load)

Audio & Performance Specifications

Input Sensitivity / Impedance

MIC 1~4 (Balanced): -40 dBV (±2 dB)
LINE 1~4 (Balanced): -5 dBV (±2 dB)
AUX (Unbalanced): -5 dBV (±2 dB)
TEL: -15 dBV (±2 dB)

Signal-to-Noise Ratio (S/N)

MIC: >65 dB | LINE: >75 dB | AUX: >75 dB

Frequency Bandwidth

MIC (Outdoor): 178 Hz – 7.96 kHz | MIC (Indoor): 132 Hz – 7.96 kHz
LINE (Outdoor): 138 Hz – 12.6 kHz | LINE (Indoor): 70 Hz – 12.6 kHz
AUX (Outdoor): 144 Hz – 17 kHz | AUX (Indoor): 76 Hz – 17 kHz

Total Harmonic Distortion (THD+N)

≤ 1 W (1/10 Rated Output / 1 W)

Equalizer / Tone Controls

Bass: ±10 dB @ 100 Hz | Treble: ±10 dB @ 10 kHz

Phantom Power Supply

18V DC (Condenser Microphone)

Priority, CMRR & Noise

Priority Sensitivity (MIC + TEL): -60 dBV / 3s
CMRR (Balanced Input): >60 dB
Noise (All VR MAX): <30 mV

Dimensions & Physical Specifications

Item Dimensions (W×D×H)

663mm x 576mm x 232mm (26.10" x 22.68" x 9.13")

Net Weight

21.05 kg (46.41 lbs)