The Fosi Audio ZA3-32V 2.0 Channel Amplifier combines versatile dual-mode operation with audiophile-grade performance. Switch seamlessly between stereo (155W) and mono (235W) configurations, or cascade two units for maximum power delivery. Balanced XLR and 1/4" TRS combo inputs minimize electromagnetic interference while a 12V trigger input enables synchronized operation with compatible components. Built around the acclaimed TPA3255 Class-D chip paired with precision Japanese and German capacitors, this amplifier achieves exceptional clarity with minimal distortion and impressive dynamic range. The optimized thermal design—featuring an enlarged chassis, strategically positioned ventilation, and protective dust covers—maintains stable operation during demanding listening sessions. Tailor your sonic character through op-amp rolling with compatible DIP8 dual op-amps, allowing fine-tuned frequency response and tonal shaping. Each unit includes a universal power adapter, comprehensive documentation, 24-month warranty coverage, and dedicated customer support.