JBL / CSMA 1120

The CSMA1120 is a power amplifier with a 4-channel mixer function. It features microphone/line input terminals that allow for signal level switching and 27V phantom power supply, as well as a line input terminal for direct connection of CD players and other devices. It supports high-impedance connections and is equipped with a high-pass filter function to prevent speaker transformer saturation.

An all-in-one power amplifier with a built-in mixer that makes it easy to set up a broadcast system. Packed with features in a compact chassis, it allows you to build a broadcast system simply by connecting microphones and speakers. Furthermore, because it requires minimal operation, high-quality sound reinforcement (SR) can be achieved even in locations without a dedicated operator, such as stores, various facilities, and workspaces.


■Power Amplifier

■Input Channels: 4

■Output Channels: 1

■Input

Terminals: ch1: Euroblock (balanced), ch2-4: Euroblock (balanced), RCA (unbalanced)

Impedance: Euroblock: 400Ω (microphone), 20kΩ (line), RCA: 50kΩ

Maximum Input Level: +20dBu

Phantom Power: (Euroblock only)

■Output

Terminals: Euroblock

4/8Ω: 120W

70/100V: 120W

■Frequency Response: ±2dB (20Hz-20kHz, 4/8Ω output)

■S/N Ratio: 90dB or higher (A-weighted)

■THD: 0.5% or less (20Hz-20kHz, power amplifier output)

■Indicators: Signal (input/output), Clip (output), Power

■Power Supply: AC100V, 50/60Hz

■ Power Consumption: 35W (1/8 output, pink noise, 4Ω)

■ Dimensions (W×H×D): 218×44×304mm (excluding protrusions)

■ Weight: 3.2kg

■ Accessories

3-pin Euroblock connector × 4

5-pin Euroblock connector × 2

Long angle bracket

Flat bracket

Front angle bracket × 2

Rear angle bracket

Rear flat bracket

Fixing screw × 1

Rear bracket connection screw × 3

Spring washer × 3

Washer × 3

Rack mount screw × 5

Rubber feet × 4 (1 sheet)

Power cord

Japanese instruction manual