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The purest and most tangible audio experience



Studio control rooms are the ultimate challenge for any loudspeaker design. After getting rid of acoustical flaws and installing decent power amps it all comes down to the quality of the electro-acoustical transducers. The Master Series M57 loudspeaker inhabits two SA1205 woofers and one SA8535M Ribbon Compact Driver which are set to a d'Appolito configuration. By design the M57 is fitted with 30mm thick walls and baffle wherein the driver units are flush mounted. The M57 can be driven active or passive. To achieve unsurpassed sound quality you can use the SA M57 in combination with the SA HE50 amplifier (fan-less design) from the SA High-End Series. Really nothing can beat the HE50 / M57 combo!

 Technical Specifications 

- Frequency response : 35Hz – 30kHz (+/- 3dB)

- Transducers : 2 x SA1205, 12” LF driver 1 x SA8535M, neodymium HF driver

- Cross-over frequency : 1500Hz

- Nominal impedance : 16Ω (passive), 4Ω LF (active), 13Ω HF (active)

- Sensitivity @ 1W/1m : 97dB (passive), 97dB LF (active), 102dB HF (active)

- Max. RMS power : 800W (passive), 800W LF (active), 60W HF (active)

- Max. Peak power : 2000W (passive), 2000W LF (active), 1000W HF (active)

- SPL program/peak : 126dB/130dB (passive), 126/130dB LF (active), 120/130dB HF (active)

- Coverage angles (@ 2kHz H x V) : 100° x 40°

- Enclosure construction : 30mm thick baffle and walls, 15mm Birch plywood + 15mm MDF

- Color : SA Black Protexture, other colors on request

- Connectors : 2 x SpeakOn NL4, 1 x Low / 1 x High (active), 1 x Input / 1 x link (passive)

- Physical dimensions (H x W x D) : 908mm x 592mm x 420mm (35.8” x 23.3” x 16.6”)

- Weight : 80kg (176.4lb)

- Warranty : 5 years limited (1 year on ‘moving parts’)

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