Σ Series
The Beta Three Σ Series speakers are high powered, compact, constructed of premium birch plywood and are suited to a diverse range of applications. Suitable for music and vocal reproduction.
  • ∑B110
    Single 10”phase inverted subwoofer.
    Sensitivity is 94dB.
    Max. SPL is 115dB.
  • ΣS206/50
    Full Range Speaker
    1 x 1” HF 1 x 6” LF Transducers
    80W (RMS) 8Ω
  • ΣS306/50
    Full Range Speaker
    1x1” HF 2x6” LF Transducers
    160W (RMS) 8Ω
  • ΣS208/50
    Full Range Speaker
    1 x 1” HF 1 x 8” LF Transducers
    100W (RMS) 8Ω
  • ΣS210/105
    Full Range Speaker
    1 x 1.7” HF 1 x 10” LF Transducers
    200W (RMS) 8Ω
  • ΣS212/85
    Full Range Speaker
    1 x 3” HF 1 x 12” LF Transducers
    250W (RMS) 8Ω
  • ΣS212a/85
    Full Range Active Speaker
    1 x 3” HF 1 x 12” LF Transducers
    400W (RMS) 8Ω
  • ΣS215/85
    Full Range Speaker
    1 x 3” HF 1 x 15” LF Transducers
    250W (RMS) 8Ω
  • ΣS215a
    Full Range Speaker
    1 x 3” HF 1 x 15” LF Transducers
    400W (RMS) 8Ω
  • ΣS215/500
    Full Range Speaker
    1 x 3” HF 1 x 15” LF Transducers
    500W (RMS) 8Ω
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