JBL NCSA2120Z-U-US

JBL NCSA2120Z-U-US Compact Network Power Amplifier

The JBL NCSA2120Z-U-US is a half-rack, fanless amplifier built for installed audio systems where space and silent operation matter most. Its compact 1U footprint and fanless design make it ideal for mounted installations in venues, conference spaces, and fixed installations, while its robust power delivery handles both small and mid-size speaker loads without compromise.

Power & Amplification

Dual 120-watt output channels deliver 120W @ 4/8 Ohms with THD+N below 0.5%, providing clean, distortion-free amplification across standard impedance loads from 2–16 Ohms. The integrated Crown DriveCore technology replaces hundreds of discrete components with a single advanced chip, reducing complexity while maintaining transparent audio reproduction.

Installation & Connectivity

Balanced and unbalanced RCA inputs, Euroblock connectors, and two RJ45 connectors for JBL CSR-V volume control compatibility streamline integration into networked audio systems. Universal AC power acceptance (100–240 VAC, 50/60 Hz) and native support for both 70V and 100V installations ensure compatibility across diverse venue requirements.

Key Features

• Dual 120-watt output channels at 4/8 Ohms (1kHz, THD+N <0.5%)
• Fanless 1U half-rack design (8.2" × 1.7" × 7")
• Crown DriveCore integrated amplifier technology
• Load impedance stable from 2–16 Ohms
• Balanced (20K Ohms) and Unbalanced (10K Ohms) input impedance
• Two RJ45 connectors for JBL CSR-V in-wall volume control
• Mono sum RCA and Euroblock connectors for input/output
• 70V and 100V installation support
• Frequency response 20–20000 Hz; SNR 100 dB; THD 0.5%
• Universal power supply 100–240 VAC, 50/60 Hz
• Sensitivity: 1.4Vrms
• Shipping weight 2.9 lbs

This amplifier delivers professional-grade audio performance in a space-efficient form factor, making it a reliable choice for permanent installations and networked audio environments where quiet operation and dependable power are essential.