Audio selector SP 28 is designed for specific sound reinforcement applications, fixed installations and recording studios.

Front panel:

• 4 rotary potentiometers separately adjusting the output level of the 4 stereo systems (Left and Right)
• 4 push-buttons, without detent, that activate (LED on) the relevant outputs of the 4 stereo systems (Left and right)
• 1 “Priority” push-button, with detent, to activate the output of the selected system while excluding the previous one
• 1 “Left” push-button, with detent, activating all the outputs associated with the left channel
• 1 “Right” push-button, with detent, activating all the outputs associated with the right channel
• “Power” switch

Rear panel:

• 1 connector to link the external power unit (supplied)
• 2 electronically balanced inputs of the Left and Right channels (XLR-M Neutrik)
• 8 electronically balanced outputs of the 4 stereo systems (XLR-F Neutrik)
• All the inputs and outputs with the Ground-Lift switch

• Frequency response (@-3 dB) 10 Hz to 20 kHz
• THD + N 0.001%
• Input impedance 22K ohm balanced
• Gain 6 dB
• Signal/noise ratio > 110 dB
• Max input level 20 dB
• CMRR > 50 dB
• Separation between channels (@ 100Hz, 1 kHz, 10kHz) 76 dB, 55 dB, 36 dB
• Max output (@ 10 K ohm) 26 dBu
• Output impedance 600 ohm
• Connectors: XLR-F inputs, XLR-M outputs
• Power supply 230 Vac, 50 Hz
• Dimensions (WxHxD) 482x44x205 mm
• Weight 2.4 kg