Bose® Freespace® E4 Series II electronic system is a commercial music application system that integrates 4-channel signal processing, signal path allocation, and 4-channel power amplification output. It provides the best solution for commercial music applications with 1-4 system partitions.
The Freespace E4 Series II is a commercial music system that integrates four‑channel signal processing, routing, and power amplification for up to four zones. It delivers up to 400 W total output power and supports both 70 V and 100 V constant‑voltage speaker configurations.
This manual covers product overview, installation using the FreeSpace Installer software, wiring diagrams, control panel functions, detailed technical specifications, safety standards, optional accessories, example system configurations, and troubleshooting procedures.
| Maximum System Power | 400 W |
|---|---|
| THD (1 kHz, 1 % THD) | <1.0 % |
| Signal‑to‑Noise Ratio | 90 dB |
| Frequency Response | 20 Hz – 20 kHz ±1 dB |
| Power Consumption (idle) | 60 W |
| Power Consumption (full load) | 300 W |
| Output Voltage Options | 70 V / 100 V |
| Dimensions (W × D × H) | 17.25" × 15.5" × 5.25" (438 mm × 399 mm × 133 mm) |
| Weight | 30 lb (13.6 kg) |
Each channel can be set from a minimum of 1 W up to a maximum of 400 W.
The amplifier can be set for either 70 V or 100 V constant‑voltage output.