Compact yet immensely powerful, the 1ET6525SA is a single-channel analog-input Class D amplifier module engineered for pristine audio fidelity and effortless integration into high-performance audio systems.
Highlights of the Purifi EVAL7 Mono Evaluation Kit
- Delivers over 450W into 4Ω with ultra-low distortion
- 1ET6525SA single-channel Class D amplifier module
- THD+N as low as 0.0001% at 100W, 4Ω, across 20–20kHz
- Dynamic range and SNR up to 137 dB(A)
- High efficiency (>94%) with just 1.6W idle losses
Product details Purifi 1ET6525SA
Purifi 1ET6525SA Analog-Input Class D Amplifier Module
The Purifi 1ET6525SA is a cutting-edge, single-channel analog-input Class D amplifier module, built around Purifi’s second-generation Eigentakt™ error-correction technology. Delivering over 450W into 4Ω with minimal distortion, the 1ET6525SA achieves a class-leading total harmonic distortion of less than 0.0001% at 100W from 20Hz to 20kHz. With an output current capability of approximately 25A and an output impedance of less than 30µΩ at 1kHz, it provides exceptional control over loudspeaker loads.
Operating from ±32V to ±65V split-rail supplies, the module achieves over 94% efficiency and features low idle losses (~1.6W), making it ideal for compact, thermally constrained designs. Thanks to a dynamic range and signal-to-noise ratio of 137 dB(A), it delivers unmatched resolution and silence, even at very low playback volumes. The amplifier maintains a load-invariant frequency response and features a clean, well-managed clipping behavior for superior reliability under demanding conditions.
Protection systems include overcurrent, overload, DC detection, thermal monitoring, and voltage regulation. Integration is straightforward via hardware or software (I2C) control, and the compact footprint (82 x 63 x 33 mm) fits seamlessly into audiophile-grade power amps or advanced active speakers. This module is the top choice for designers seeking world-class audio fidelity, efficiency, and protection in a space-saving format.
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