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The SPB 8000 Esfera Surround Sound Process Base by Sennheiser is for converting stereo microphone signals into 5.1 surround. It can be used in various environments when capturing audio in studios, live stage, theater, rehearsals, houses of worship, and more. The system consists of the SPM 8000 stereo microphone, (sold separately), and the SPB 8000 processing unit that converts the stereo signals of the microphone into a complete 5.1 audio signal. The DPB 8000 supplies the microphone with 48V phantom power, is input switchable between analog and digital AES3 signals and has a switchable compressor built-in. In addition it features 4 programmable presets for storage of 5.1 surround parameters. The SPB 8000 is adjustable via a web interface.
In the Box
Sennheiser SPB 8000 Esfera Surround Sound Process Base
0.03% at 64 dBu: Gain: −12 dBFS at 1 kHz
0.004% at 30 dBu: Gain: −12 dBFS at 1 kHz
Signal to Noise Ratio
CCIR 468: -82.6 dB, 64 dB gain at 48 kHz sampling rate
CCIR 468: -106,1 dB, 30 dB gain at 48 kHz sampling rate
A-weighted: -85.5 dB, 64 dB gain at 48 kHz sampling rate
A-weighted: -109.3 dB, 30 dB gain at 48 kHz sampling rate
Unweighted: -84 dB, 64 dB gain at 48 kHz sampling rate
Unweighted: -104,3 dB, 30 dB gain at 48 kHz sampling rate
+64 dB (max)
130.3 dB 30 dB gain (A-weighted)
-70 dB at 10 kHz (-30 dBu input, 30 dB gain)
Measured at AES3 Out 1/2:
At 44.1 kHz Sampling Rate: 10 Hz-21 kHz
At 48 kHz Sampling Rate: 10 Hz-22.5 kHz
At 88 kHz Sampling Rate: 10 Hz-42 kHz
At 96 kHz Sampling Rate: 10 Hz-45 kHZ