Previous page MA5332 Chip PA40 HiFi Amplifier utilizes MA5332 chip, with up to 95% efficiency and low power consumption Easy to use PA40 digital amp can be controlled by the knob, also equipped with a full-featured remote control. Next page 1 165Wx2 2 MA5332 Chip 3 Easy to use Previous page Next page 1 Built-in Power Supply 2 EQ Adjustment 3 Bass & Treble Adjustment 4 How to connect Previous page Next page 1 Front Panel 2 Back Panel 3 Side Panel 4 Floating Window Specifications Input RCA THD+N 0.004% SNR 100dB Channel Separation 72dB Input Sensitivity/Impedance High gain:315mV/20kΩ; Low gain:580mV/20kΩ (Max input level in high gain: ≤1.2 VRMS.) Output Power 165Wx2(4Ω); 85Wx2(8Ω) Power Consumption 40W(Normal Volume) Size 191.6x41.6x185mm(WxHxD) Weight 1.26kg/2.77lbs Package List 1* SMSL PA40, 1* Remote Control, 1* AC Power Cable, 1* User manual, 1* SMSL Card How can I determine if the amplifier is compatible with my speakers? 1. Speaker Impedance: The PA40 supports both 4Ω and 8Ω. 2. Required power: PA40 supports output power: 165Wx2 (4Ω); 85Wx2 (8Ω). 3. Number of channels: 2.0 channels for the PA40. Does it need additional speakers to work? The SMSL PA40 amplifier requires a passive speaker to be connected in order to work. It is designed to power and drive passive speakers, enabling you to build 2.0 channel audio systems. only RCA inputs and has no built-in speakers of its own. Can I add a subwoofer to my PA40 amp? Yes, but you need to use an active subwoofer with speaker terminals, such as the yamaha NS-SW200. Does the PA40 function with memory? Yes, all of the settings of PA40 are maintained after a power failure, such as volume, treble, and bass adjustments. What if I'm a non-technical person and don't know how to use it? If you encounter any problems during use, AOSHIDA provides 24-hour online technical service.