JBL NCSMA280-U-US 8-Input Mixer-Amp

The NCSMA280-U-US is a compact, fanless mixer-amplifier engineered for permanent installation in commercial and institutional audio systems. Its single-rack-unit form factor and balanced input architecture make it a straightforward, dependable choice for facilities requiring integrated mixing and amplification without the complications of separate components.

Power & Amplification

This unit delivers 80W peak power with 10W per channel, driving both standard impedances (4 and 8 ohm) and distributed voltage systems (70V and 100V) without requiring external transformers. The DriveCore amplifier topology operates fanless, eliminating noise concerns in noise-sensitive environments.

Connectivity & Control

Eight inputs accommodate balanced mic and line sources via 2 × 5-pin and 6 × 3-pin Euro-block connectors, plus six dual RCA stereo inputs for additional flexibility. Independent volume controls, adjustable bass and treble tone shaping, and RJ45 connections for JBL CSR-V remote volume controls provide comprehensive mixing capability from a single 1U chassis.

Key Features

• 8-input configuration with 2 × 80W amplifier channels
• Fanless operation in a 1U rack-mount enclosure
• DriveCore mixer-amp topology
• Supports 4 ohm, 8 ohm, 70V, and 100V loads without external transformer
• 2 × 5-pin balanced Euro-block mic/line inputs
• 6 × 3-pin balanced Euro-block mic/line inputs
• 6 × dual RCA stereo inputs
• RJ45 connectors for JBL CSR-V in-wall volume control integration
• Independent per-channel volume controls
• Master volume adjustment
• Adjustable bass and treble controls
• Illuminated control ring for low-light visibility

The NCSMA280-U-US combines straightforward operation, multi-impedance compatibility, and reliable fanless performance into a standard-format platform suited for permanent AV installations.