Overview
The U-21S is a line input module to be used in conjunction with the 900 series components and other TOA's equipment. It has an unbalanced input with screw terminals, remote volume control function, and gain control.
Specifications
| Power Source | 24 V DC (supplied from the main frame) |
| Current Consumption | 27 mA |
| Input Sensitivity | -20 dB* (rated output: -20 dB*), adjustable: -20 to +10 dB* |
| Input Impedance | 220 kΩ, unbalanced |
| Frequency Response | 20 Hz - 20 kHz ±1.5 dB |
| Distortion | 0.05 % or less (1 kHz, output: 0 dB*) |
| Noise Level | -106 dB* (20 Hz - 20 kHz BPF) |
| Gain | -30 - 0 dB |
| Remote Control Range | 0 to -55 dB |
| Connector | 5 Screw terminals |
| Dimensions | 35 (W) × 78 (H) × 88 (D) mm (1.38 × 3.07" × 3.46")" |
| Weight | Max. 65 g (0.14 lb) |