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Esfera’s SPB 8000 processing unit converts the signals of the SPM 8000 stereo microphone into a complete 5.1 audio signal.Read More
Esfera is a surround microphone system which is easy to install and very easy to use. Esfera provides 5.1 surround sound from just two channels, making complicated surround mic installations a thing of the past. The system consists of the SPM 8000 stereo and the SPB 8000 processing unit that converts the signals of the microphones into a complete 5.1 audio signal.
The SPB 8000 processing unit converts the signals of the SPM 8000 stereo microphone into a complete 5.1 audio signal.
Supplies microphones with 48 V phantom power
Input switchable between analog and digital AES3 signals
Switchable compressor
4 programmable presets for storage of 5.1 surround parameters
SPB 8000 adjustable via a web interface
1 SPB 8000 processing unit
3 mains cables (EU, UK and US version)
1 network cable
4 self-adhesive feet
1 instruction manual
General Specs | |
| Connection Type | XLR-3F, 3-pin, XLR-3M, and RJ 45 socket |
| Product Weight (lbs.) | 8.6 |
Microphone Input | |
| Impedance | approx. 4 kO, balanced |
| Phantom powering | 48 V, switchable |
| Connection | 2 XLR-3F sockets, transformerless balanced |
| Dimensions depth with controls and sockets | approx. 44 x 482 x 275 mm (H x W x D) |
| Dimensions depth with sockets | approx. 44 x 482 x 260 mm (H x W x D) |
| Dimensions depth of housing | approx. 44 x 482 x 240 mm (H x W x D) |
| Weight | approx. 3.9 kg |
Power Supply | |
| Connector | (Mains) 3-pin, protection class I as per IEC/EN 60320-1 |
| Power consumption | max. 15 W |
| Fuse 115 V AC | T 160 mA L 250 V |
| Fuse | T 315 mA L 250 V |
| Voltage range | 115 V~ / 230 V~, 50/60 Hz |
Audio Characteristics | |
| Signal-to-noise ratio CCIR 468 | –82.6 dB, 64 dB gain at 48 kHz sampling rate; –106,1 dB, 30 dB gain at 48 kHz sampling rate |
| Signal-to-noise ratio A-weighted | –85.5 dB, 64 dB gain at 48 kHz sampling rate; –109.3 dB, 30 dB gain at 48 kHz sampling rate |
| Signal-to-noise ratio Unweighted | –84 dB, 64 dB gain at 48 kHz sampling rate; –104,3 dB, 30 dB gain at 48 kHz sampling rate |
| Gain | +64 dB (max.) |
| Dynamic range | 130.3 dB 30 dB gain (A-weighted) |
| Crosstalk | –70 dB at 10 kHz (–30 dBu input, 30 dB gain) |
| Frequency response measured at AES3 Out ½ at 44.1 kHz sampling rate | 10 Hz-21 kHz |
| Frequency response measured at AES3 Out ½ at 48 kHz sampling rate | 10 Hz-22.5 kHz |
| Frequency response measured at AES3 Out ½ at 88.2 kHz sampling rate | 10 Hz-42 kHz |
| Frequency response measured at AES3 Out ½ at 96 kHz sampling rate | 10 Hz-45 kHz |
Digital Input | |
| AES3 standard | channels L/R |
| Connection | 1 XLR-3F socket |
Digital Output | |
| AES3 standard | channels L/R, C/LFE, SL, SR |
| Sampling rates | 44.1 / 48 / 88.2 / 96 kHz |
| Bitrate | 24 bits |
| Format | professional |
| Connection | 3 XLR-3M sockets |
Ethernet | |
| Communication | HTTP (POST request method), JSON-compliant |
| Ports | 80, 9050 with multicast |
| Connection | RJ 45 socket |
| Firmware update | via HTTP |
Synchronization | |
| Word clock | via Input socket B (BNC) |
| AES3 input clock | via In socket D (XLR-3F) |
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