4-in/2-out Stereo Audio Mixer - RCA 3.5mm Inputs Auto-Mixing No Switching Required Volume Control Drive Headphone Amplifier

4-in/2-out Stereo Audio Mixer - RCA & 3.5mm Inputs | Auto-Mixing | No Switching RequiredCore FeaturesSimultaneous Multi-Source Playback4× Stereo RCA Inputs1× 3.5mm AUX InputDual Output Modes✅ Mixed Output: Blend all input sources✅ Direct Pass-Through: Isolate individual channelsBuilt-in AmplifierGain: +3.5dB (1.5× signal boost)Zero Switching HassleAll inputs active concurrentlyTechnical SpecificationsParameterSpecificationInputs4× RCA (L/R) + 1× 3.5mm TRSOutputs1× RCA (L/R) + 1× 3.5mm HeadphonePower SupplyDC 5-19V (Low-Ripple Required!)THD+NSNR>90dBPCB Dimensions110×50×28mmEnclosure Size120×52×43mmWiring Guidetext[INPUT 1-4] ← RCA devices (CD/DVD/Streamer)[AUX IN] ← 3.5mm sources (Phone/Tablet)[RCA OUT] → Amplifier/Speakers[HP OUT] → Headphones[DC IN] ← 5-19V Clean Power⚠️ Critical Power Note:Use low-ripple linear power supplies only – switch-mode PSUs may induce 50/60Hz hum.Application ScenariosHome Studio: Blend synths/drum machines without repatchingDJ Setup: Merge backup players with main mixerRetail Spaces: Simultaneous playback of music/announcementsEducation: Multi-device audio demos