ERA SUB 321 - Passive cardioid subwoofer
ERA SUB 321 - Passive cardioid subwoofer
The cinema industry's exclusive passive cardioid low-frequency subwoofer finally gains control over the persistent low-frequency disruptions that have plagued cinemas for years. With reduced radiation at the rear, there’s less reflected sound from the rear wall, resulting in more uniform coverage across the room. Ultimately, this means that significantly less sound leaks through the walls. Now, every moviegoer can enjoy their movie without disturbance from adjacent auditoriums.
ERA SUB 321 is an innovative subwoofer that offers expert tools to control room coverage, yet connects as easily as any conventional subwoofer. No additional processing, connections, tuning, or training is needed to unlock the full potential of ERA SUB 321.
The groundbreaking passive cardioid in ERA SUB 321 sets a new standard by effectively controlling low-frequency sound, ensuring greater consistency within the cinema hall while eliminating unwanted sound bleed into adjacent rooms.
| Main | |
|---|---|
| Type | Passive cardioid subwoofer |
| Acoustical & Electrical data | |
| Frequency response (-6dB) | 29 – 150 Hz |
| Max SPL (peak) 2 | 138 dB |
| Sensitivity (1W/1m) (half-space) 1 | 103,5 dB |
| Driver | 3 x 21” |
| Nominal impedance | 4 Ohm |
| Rated power 3 | 3000 W |
| Connections and physical data | |
| Connectors | Phoenix |
| Recommended amplifier power | 3000 - 6000 W |
| Dimensions (W x H x D) | 620 x 1790 x 784 mm / 24,41” x 70,47” x 30,86” |
| Net weight | 89 kg / 196 lbs |
| Gross weight | 91 kg |
| Enclosure materials | Plywood, MDF; wear-resistant paint |
| Color | Black |
2 dBSPL peak, IEC 60268-5 pink noise, measured on nominal power, 6 dB crest factor
1 dBSPL, IEC 60268-5 pink noise, 1 W / 1 m
3 2 hour power test, IEC filtered noise, 6 dB crest factor
