Description
Need reliable, high-power audio for your paging, background music, or intercom system? The Bogen NQ-A4300-G2 is a powerhouse 4-channel amplifier from Bogen's Nyquist Gen2 series. It delivers a massive 300 watts per channel (up to 1200 watts total) while using efficient Class D technology that runs cooler and quieter than older amps.
Designed for permanent installations in schools, offices, retail, warehouses, and commercial buildings, this amplifier integrates seamlessly with Nyquist networked audio systems. It handles paging announcements, background music distribution, and more with crystal-clear sound. Built-in DSP tools let you fine-tune audio without extra gear, making setup straightforward even for growing systems.
Expert Take: If your current system clips during peak announcements or struggles to fill larger spaces, step up to the NQ-A4300-G2. It's overbuilt for reliability and future-proofs your audio distribution. Pair it with Bogen Nyquist speakers and the System Controller for a complete, easy-to-manage solution. We've installed dozens of these-setup is logical once you follow the configuration guide, and the fanless design in lighter models isn't needed here because the efficient Class D keeps heat low.
When to choose the NQ-A4300-G2: If you need to cover bigger spaces or push more volume without distortion. For smaller setups, the 60W or 120W models save money while keeping the same smart features.
(We also carry 2-channel Nyquist amps if your project needs fewer zones.)
Key Features
- Powerful 4-Channel Output - 300 watts per channel @ 4-ohm/25V; bridgeable for higher power on fewer channels
- Network-Ready Audio - Accepts network-based audio for paging and distribution across your Nyquist system
- Flexible Inputs - 4 dedicated balanced line inputs (Phoenix and RCA connectors) that can also be routed out over the network
- Built-in DSP Control - Easy GUI interface with 16-band graphic EQ, 7-band parametric EQ, high/low/bandpass filters, noise gate, compressor/limiter, and signal/clip monitoring
- Output Versatility - Supports 4-ohm, 8-ohm, 25V, and 70V speaker systems
- Switchable Operation Modes - Run as 4-channel, 3-channel, or 2-channel bridged depending on your needs
- Class D Efficiency - Delivers great sound quality, lower heat, and better energy use
- Mounting Options - 2RU, half-rack width; wall, shelf, or rack mountable (kits available separately)
- Commercial & Residential Certified - Meets strict safety and EMC standards for permanent installs
Technical Specifications
- Power Output: 300 watts per channel (4-channel mode @ 4-ohm or 25V)
- Amplifier Type: Class D
- Inputs: 4 balanced line inputs (Phoenix + RCA); network audio input
- Outputs: 4-ohm, 8-ohm, 25V, 70V per channel
- Operation Modes: 4-channel, 3-channel, or 2-channel bridged
- DSP Features: 16-band graphic EQ, 7-band parametric EQ, high/low/bandpass filters, noise gate, compressor/limiter, signal present & clip indicators
- Mounting: 2RU, ½ rack width; compatible with optional NQ-RMK03 / NQ-RMK04 kits
- Safety Certifications: CAN/CSA 62368-1:2014, EN62368-1:2014
- EMC: FCC Part 15 & ICES-003 Class B, EN 55032 Class B
- Network Compatibility: Full integration with Bogen Nyquist C4000 systems


