Technical details
| Model Name | B 21 |
|---|---|
| ACOUSTICAL DATA | |
| Frequency range (-3 dB)* | 33 Hz – 130 Hz |
| Frequency range (-10 dB)* | 25 Hz – 160 Hz |
| Coverage angles (-6 dB) [H x V] | Omnidirectional |
| Nominal impedance | 8 Ω |
| Sensitivity** | 99 dB |
| Peak power | 4000 W |
| Continuous power*** | 1000 W |
| Maximum Peak SPL**** | 142 dB |
| System type | 1-way passive system |
| Crossover frequency | - |
| Transducers | 1 × 21" driver (5" voice coil) |
| Enclosure | Vented box |
| Connectors | Input/Link: 4 × Neutrik speakON® NL4; Link out: 1 × Neutrik speakON® NL4 |
| Wiring | Pins 1+/1-: driver; Pins 2+/2-: link (Output CH 2, pins 1+/1-) |
| MECHANICAL DATA | |
| Product dimensions [H x W x D] | 672 × 595 × 832 mm |
| Net weight | 51 kg |
| Packaging dimensions [H x W x D] | 796 × 685 × 930 mm |
| Total weight | 61.5 kg |
| Cabinet | 15 – 21 mm plywood |
| Cabinet finishing | Black or white polyurea coating |
| Grille | Powder coated perforated steel |
| Hardware | 8 rubber feet and top recesses for stacking; M20 pole thread; 4 SE Audiotechnik® ergonomic handles |
| ACCESSORIES | |
| SPS20 | Pole bar |
| B 21 TD | Transport dolly (1 unit) |
| B 21 TC | Transport cover |
| B 21 FC | Flight case (1 unit) |
| ANNOTATION | |
| * | Measured with a 6th-order Butterworth low-pass filter applied at 130 Hz |
| ** | Half space, 1W / 1m, on axis |
| *** | According to EIA-426B Standard (based on RMS Voltage) |
| **** | Max Peak SPL = Sensitivity + 10log10(Continuous Power) + 12 dB Crest Factor |
Packaging:
Cardboard outer packaging: 93.43% (7890 g) | Foam inner padding: 4.97% (420 g) | Plastic protective sleeve: 1.60% (135 g)
The following overview contains information on the regulated substances used in the product and on compliance with the applicable limit values.
"Lead (Pb): Used in printed circuit boards (printed circuit board | electronic components on the PCB | internal connecting wires | copper traces) (permitted exemption).
"
"Lead (Pb): Used in connectors (electrical connectors) (permitted exemption). "
Mercury (Hg): The content is not detectable or is below the applicable regulatory limits.
Cadmium (Cd): The content is not detectable or is below the applicable regulatory limits.
Hexavalent Chromium (Cr(VI)): The content is not detectable or is below the applicable regulatory limits.
Polybrominated Biphenyls (PBB): The content is not detectable or is below the applicable regulatory limits.
Polybrominated Diphenyl Ethers (PBDE): The content is not detectable or is below the applicable regulatory limits.
"Lead (Pb): Used in connectors (electrical connectors) (permitted exemption). "
Mercury (Hg): The content is not detectable or is below the applicable regulatory limits.
Cadmium (Cd): The content is not detectable or is below the applicable regulatory limits.
Hexavalent Chromium (Cr(VI)): The content is not detectable or is below the applicable regulatory limits.
Polybrominated Biphenyls (PBB): The content is not detectable or is below the applicable regulatory limits.
Polybrominated Diphenyl Ethers (PBDE): The content is not detectable or is below the applicable regulatory limits.
Environmental Protection Use Period: 15 year(s)










