LPA-S400ET vs Legacy Audio Powerbloc2
The Powerbloc2's power @ 8ω is 325W against the LPA-S400ET's 227W, its power @ 4ω 650W against 425W, its signal-to-noise 117 dB against 131 dB, and its thd 0.005% against 0.000%.
AI-generated product photo — not official manufacturer imagery.
LPA-S400ET
AudiophonicsAmplifiersPower Amplifiers
Estimated price (community-sourced)
$1,490
Estimate — not enough price data to average yet
About the LPA-S400ET
The Audiophonics LPA-S400ET is a two-channel Class D power amplifier built around two Purifi 1ET400A amplifier modules, one per channel, and a Hypex SMPS1200 switching power supply. It provides balanced XLR and unbalanced RCA inputs, with selectable input routing and three gain configurations selectable by internal jumpers. Manufacturer-listed output power is 227 W per channel into 8 ohms, 425 W into 4 ohms, and 450 W into 2 ohms, each at 1% THD. The published specifications also include a 131 dB A-weighted signal-to-noise ratio at 4 ohms and a frequency response of 20 Hz–20 kHz within ±0.01 dB. This is the LPA-S400ET model, not the similarly named HPA-S400ET variant.
Specifications
Power Specifications
Amplification power output and characteristics
- Power @ 8Ω
- 227W @ 8Ω
- Power @ 4Ω
- 425W @ 4Ω
- Amplifier Class
- D
Analog Output
Analog signal output specifications
- THD
- 0.000%
- SNR
- 131 dB
Connectivity
Input and output connections
- Analog Inputs
- RCA, XLR
Key Specifications
Power: 227W
Specifications are community-contributed and may not be accurate or complete. Verify all details with the manufacturer before making purchasing decisions. Terms & Conditions