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QSC {QSYS} MPA-Q 4x250
  • QSC {QSYS} MPA-Q 4x250
  • QSC {QSYS} MPA-Q 4x250
  • QSC {QSYS} MPA-Q 4x250
QSC {QSYS} MPA-Q 4x250

QSC {QSYS} MPA-Q 4x250

MSRP: $0.00
MAP: $0.00

4-Channel 250W/Ch Q-SYS Network Amplifier, Lo-Z, 70V/100V direct drive, Line Inputs, GPIO and Relays, 100-240V. Supports Analog Mode operation and optional PoE backup. Not available for online advertising

SKU: QSC-MPA-Q 4X250

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Overview

The MPA-Q 4x250 is part of the mid-power tier in the Q-SYS network amplifier portfolio, extending native Q-SYS integration into even more performance and distributed audio applications across hospitality, entertainment, retail and government environments.

Features

  • Four (4) output channels at 250 W per channel
  • Lo-Z, Hi-Z, 70 V and 100 V direct drive available on all channels (no bridging or manual switches required)
  • Four (4) analog, line-level audio inputs, fully routable into Q-SYS or direct out
  • Two (2) gigabit Ethernet ports for redundant networked audio
  • Standalone mode offers ability to switch to available analog inputs if network connectivity drops
  • Quick audio restore after a power outage if PoE connection is available
  • Four (4) GPI inputs and two (2) NO/NC output relays
  • Full-rack width, 2RU form factor and included hardware for rack- or surface-mounting
  • Analog Mode bypasses networked audio and creates a fully analog amplifier; front panel display allows basic channel configuration in this mode

Specifications

Amplifier Output

  • Frequency Response (20Hz–20kHz, 8Ω): +0.2 dB / -0.7 dB
  • THD+N @ 1kHz: 0.01%–0.03% typical; 1% maximum
  • Signal-to-Noise Ratio (20Hz–20kHz, 8Ω, A-weighted): >112 dB
  • Gain @ +4 dBu Input: 31 dB
  • Damping Factor: >160

Analog Inputs (Line-Level Only)

  • Input Dynamic Range (Unweighted): >108 dB
  • Input Impedance (Balanced): >11 kΩ @ 1kHz
  • Input Impedance (Unbalanced): >5.5 kΩ @ 1kHz
  • Sample Rate: 48 kHz

DSP

  • DSP Processing: Gain, Polarity, IIR Filters (HPF, Parametric, Shelf, Array Correction), FIR Filters (1024 taps per channel), Delay (up to 2020 milliseconds per channel), Narrow-band, RMS, and Peak Limiters.

Output Power

All Channels Driven (A, B, C, D)

  • 100 V: 250 W Maximum, 150 W Continuous
  • 70 V: 250 W Maximum, 150 W Continuous
  • 8 Ω: 250 W Maximum, 150 W Continuous
  • 4 Ω: 250 W Maximum, 150 W Continuous
  • 2 Ω: 250 W Maximum, 150 W Continuous

Single Channel Driven (A, B, C or D)

  • 100 V: 500 W Maximum, 150 W Continuous
  • 70 V: 500 W Maximum, 150 W Continuous
  • 8 Ω: 500 W Maximum, 150 W Continuous
  • 4 Ω: 500 W Maximum, 150 W Continuous
  • 2 Ω: 500 W Maximum, 150 W Continuous

Bridged Channels (A+B or C+D)

  • 100 V: 500 W Maximum, 300 W Continuous
  • 70 V: 500 W Maximum, 300 W Continuous
  • 8 Ω: 500 W Maximum, 300 W Continuous
  • 4 Ω: 500 W Maximum, 300 W Continuous
  • 2 Ω: Not Supported

Environmental

  • Operating Temperature: 32°F to 104°F (0°C to 40°C)
  • Storage Temperature: -4°F to 158°F (-20°C to 70°C)
  • Humidity: 5%–85% RH

Physical

  • Audio Inputs: 4 × Euroblock (3.5 mm)
  • Audio Outputs: 4 × Euroblock (7.62 mm)
  • Networking: 2 × 1 Gbps Ethernet ports (LAN A supports optional PoE 802.3af Type 1)
  • GPI: 0–3.3V DC Closure
  • Mounting: Rack or surface mount using included rack ears
  • AC Power: 100–240 V AC, 50/60 Hz, 2.8–1.8 A
  • Dimensions: 15.0 × 19.0 × 3.5 in (381 × 483 × 89 mm)
  • Weight: 19.4 lbs (9.0 kg)

Included Accessories

  • AC mains power cord (country specific)
  • Removable rack ears
  • 4 × 4-position 7.62 mm Euroblock connectors
  • 8 × 3-position 3.5 mm Euroblock connectors
  • 1 × 12-position (2-row) 3.5 mm Euroblock connector

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