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Q-SYS MPA-Q 4x250 Network Amplifier With 4 Channels

Q-SYS MPA-Q 4x250 Network Amplifier With 4 Channels

SoundPro Item: 204393 | Part Number: MPA-Q 4x250

Pricing available upon request

Pricing available upon request

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  • Direct-Drive Lo-Z, 70V, And 100V On Every Channel
  • Dual Ethernet Ports Support Redundant Networked Audio
  • Standalone Mode Maintains Audio During Network Loss
  • Analog Mode Enables Fully Analog System Operation
  • Built-In DSP Supports Tuning And System Protection
  • Rack Or Surface Mount Hardware Included

The Q-SYS MPA-Q 4x250 is a four-channel network amplifier designed for distributed audio and performance systems that need native Q-SYS integration with flexible loudspeaker deployment. Each channel supports direct-drive Lo-Z, Hi-Z, 70 V, and 100 V operation without manual switching, helping integrators streamline system design across hospitality, entertainment, retail, and government environments. Four analog line-level inputs can be routed into Q-SYS or passed directly out, supporting both networked and local source workflows.

For installations where uptime matters, the amplifier includes dual gigabit Ethernet ports for redundant networked audio and a standalone mode that can switch to available analog inputs if network connectivity is lost. LAN A can also accept PoE for quick time-to-audio following a power interruption. Analog Mode bypasses networked audio to create a fully analog amplifier, while the front panel display allows basic channel configuration in that mode.

The 2RU, full-rack-width chassis includes hardware for rack or surface mounting and provides integrated control connectivity with four GPI inputs and two NO/NC output relays. Built-in DSP includes gain, polarity, IIR and FIR filtering, delay, and multiple limiter types, giving designers useful processing tools within a compact amplifier platform.

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Specifications

Audio Performance
Freq response @ 20Hz-20kHz, 8Ω
+0.2 dB / -0.7 dB
Output THD+N @1kHz
0.01%-0.03% typical; 1% max
SNR @ 20Hz-20kHz, 8Ω, A-weighted
>112 dB
Gain @ +4dBu input
31 dB
Damping factor
>160
Input dynamic range (unweighted)
>108 dB
Input impedence (balanced & unbalanced) @ 1kHz
>11k balanced and >5.5k unbalanced
Sample rate
48 kHz
DSP processing
Gain, Polarity, IIR Filters (HPF, Parametric, Shelf, Array Correction), FIR Filters (1024 taps per channel), Delay (up to 2020 milliseconds per channel), Limiters (narrow-band, RMS, and peak limiters)
Output Power
All channels driven A, B, C, D
150 W
70 V
150 W
8 Ω
150 W
4 Ω
150 W
2 Ω
150 W
Single channel driven A or B or C or D
150 W
2 channels bridged A+B or C+D
300 W
70 V
300 W
8 Ω
300 W
4 Ω
300 W
2 Ω
Not supported
Connections And Networking
Audio I/O connections
Output: 4x channels (Euro 7.62 mm) Input: 4x channels (Euro 3.5 mm)
Networking
2x 1 Gbps Ethernet ports LAN A optionally accepts PoE (802.3af Type 1) for quick time-to-audio following a power interruption
GPI
0-3.3V DC Closure
Environmental And Power
Operating temperature range
32° to 104° F (0° - 40° C)
Storage temperature range
-4° to 158° F (-20° to +70° C)
Humidity range
5% - 85% RH
AC power input
100-240 V, 50/60 Hz, 2.8-1.8 A
Physical
Mounting options
Front rack ears come installed for rack mount installation (rack ears can also be used for chassis-supported surface-mounting)
Product dimensions (L x W x H)
15.0 x 19.0 x 3.5 in (381 x 483 x 89 mm)
Product weight
19.4 lbs (9.0 kg)
Included accessories
1x AC mains power cord (country specific) Removable rack ears for rack- or surface-mounting 4-position 7.62mm pitch Euroblock connectors (Qty 4) 3-position 3.5mm pitch Euroblock connectors (Qty 8) 12-position (2-row) 3.5mm pitch Euroblock connector (Qty 1)

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