PA3 vs Quad 303
The 303's power @ 8ω is 50W against the PA3's 45W, its signal-to-noise 108 dB against 100 dB, and its thd 0.002% against 0.020%. Both share power @ 4ω (70W).
AI-generated product photo — not official manufacturer imagery.
AmplifiersPower Amplifiers
Estimated price (community-sourced)
$399
Estimate — not enough price data to average yet
About the PA3
The IOTAVX PA3 is a two-channel Class AB stereo power amplifier that can also operate in bridged mono mode. It uses a toroidal power transformer and discrete amplifier stages, with RCA line inputs and a stereo RCA pre-out for signal pass-through. The manufacturer specifies 45 W per channel into 8 ohms or 70 W per channel into 4 ohms under its stated test conditions; bridged output is rated at 100 W into 8 ohms or 140 W into 4 ohms. Other published product listings give different power figures, so these ratings reflect the manufacturer's manual.
Specifications
Power Specifications
Amplification power output and characteristics
- Power @ 8Ω
- 45W @ 8Ω
- Power @ 4Ω
- 70W @ 4Ω
- Amplifier Class
- AB
- Input Sensitivity
- 0.2V RMS
- Max Input Voltage
- 4.0V RMS
Analog Output
Analog signal output specifications
- THD
- 0.020%
- SNR
- 100 dB
Connectivity
Input and output connections
- Digital Inputs
- RCA
- Analog Inputs
- RCA
- Analog Outputs
- RCA
Key Specifications
Power: 45W
Specifications are community-contributed and may not be accurate or complete. Verify all details with the manufacturer before making purchasing decisions. Terms & Conditions