The FSR ADA-4 is a Balanced Stereo Audio Distribution Amplifier; it accepts one balanced stereo audio signal on a terminal block and distributes to four identical outputs. It features input level control and a compact size.
| Input | Balanced or Unbalanced Audio, @ 20K ohms, on a Terminal Block |
| Output | Balanced or Unbalanced Audio x4, @ 600 ohms, on Terminal Blocks |
| Coupling | Transformer |
| Audio Bandwidth | 20 kHz |
| Signal to Noise Ratio | 90 dB |
| Audio THD | 0.025% |
| Audio Control | Input Level Adjustment |
| Dimensions |
8.5 x 4.75 x 1.75" 21.6 x 12.1 x 4.45cm |
| Weight |
2.5 lbs 1.13 kg |
| Power Source | 27 VAC on a Wall Power Adapter |