This SHOW multiplex mixer is perfect for setting up a PA where zones are required. The SPA-4 mixer has four zone selectors for each output channel with LED indicators and 5 channel independent inputs with gain, treble, bass, and volume control. In addition other features like 5 channels of operation, balanced XLR combo inputs, stereo phone and monitor outputs make this a complete professional zone mixer.
Perfect for use in super-markets, churches, convention halls, footy clubs and schools. High performance, excellent sound quality and hassle-free operation make this mixer an ideal choice for installations.




SHOW is a well represented brand in the public address arena. They offer products ranging from entry level PA to professional level PA, their ergonomic and user-friendly designs reflect through their large range of products consisting of; processors, PA speakers, megaphones, amplifiers and wireless speaker systems. With more than 20 years experience in the Public address field you can rest assured that your investment in a SHOW product will have great performance, excellent sound quality and impeccable reliability.








4-ZONE PA mixing pre-amplifier
3U design
Built-in four independent amplifier, which can broadcast different sources at the same time
4MIC/LINE Balance inputs
1AUX Unbalance input
Individual tone (treble & bass), gain and zone paging control per input
Individual VU per output
Independent headphone output and monitor output
1 telephone paging input
Priority input for telephone and MIC 1
Switchable AC 115/230V and DC 24V power supply




Max.Input  Gain: 60dB CH mic. Input->main out (XLR,balanced), 50dB CH mic. Input->rec. out (unbalanced), 60dB CH mic. Input->mic. out  (unbalanced), 60dB CH mic. Input->mono out  (unbalanced)
Distortion(THD&N): ≤0.03%At 1KHz
Frequency Response: 20Hz to 22KHz,±2dB
Impedance: Microphone Input:1.4KΩ, All Other Input: 10KΩ or Greater, All Other Output: 120Ω
Main voltage: 220~240VAC~50/60Hz or 24VDC
Dimension: 483x44x195mm (WxHxD)
Weight: 2.9kg



Brand SHOW
Shipping Weight 2.9000kg
Shipping Width 0.280m
Shipping Height 0.220m
Shipping Length 0.570m

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