JBL NCSMA280-U-US 8-Input Mixer-Amp
The NCSMA280-U-US is a compact, fanless mixer-amplifier built for clean, quiet studio and control-room environments. Its single-rack-unit form factor and balanced input architecture provide straightforward mixing and amplification in one chassis, eliminating the need for separate components and simplifying session setups.
Power & Amplification
This unit delivers 80W peak power with 10W per channel, driving studio monitors, nearfield reference systems, and headphone amp chains without external transformers or format conversions. The DriveCore amplifier topology operates fanless, preserving the silent background recording and mixing sessions demand.
Connectivity & Control
Eight inputs accommodate balanced microphone and line sources via 2 × 5-pin and 6 × 3-pin Euro-block connectors, plus six dual RCA stereo inputs for connecting outboard gear, multitrack interfaces, and cue systems. Independent volume controls, adjustable bass and treble tone shaping, and RJ45 connections for JBL CSR-V remote volume controls let you manage mix levels and frequency balance without leaving the console or control surface.
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 transparent operation, multi-impedance flexibility, and silent fanless performance into a standard-format platform suited for home studios, project rooms, and professional tracking environments.








