PURIFI EVAL5 Mono 1ET9040BA Deluxe Evaluation Kit

Highlights of the Purifi EVAL5 Mono Deluxe Evaluation Kit

• Massive 1400W output into 2Ω with just 0.1% THD
• State-of-the-art Purifi Class D amplifier module 1ET9040BA
• Ultra-low total harmonic distortion: <0.00006% at 100W, 4Ω, 1kHz
• Exceptional dynamic range: 140 dB(A) with idle noise as low as 4.5 µV(A)
• Load-invariant frequency response and extraordinarily clean clipping

Product details Purifi EVAL5 Mono Deluxe Evaluation Kit

Purifi 1ET9040BA Analog-Input Class D Amplifier Module

The Purifi 1ET9040BA is a state-of-the-art analog-input Class D amplifier module utilizing Purifi’s second-generation Eigentakt™ technology. Engineered for both audiophile-grade sound systems and advanced active speaker applications, this module delivers exceptional output power with unrivaled precision and efficiency.

With a continuous power output of 750W into 4Ω and up to 1400W into 2Ω (at 0.1% THD), the 1ET9040BA maintains extremely low total harmonic distortion across the entire power range. It features a bridged output stage, low idle power consumption, and an ultra-low output impedance of just 0.025 mΩ at 1kHz. The amplifier remains stable across various loads, from 2Ω to 16Ω, without sacrificing performance.

Its load-invariant response ensures consistent performance regardless of speaker characteristics, while its frequency response extends flat up to 80 kHz. Protection mechanisms include overcurrent, over/under-voltage, thermal monitoring, output voltage clipping, and DC protection. The module operates with a supply range of ±30V to ±48V and features multiple control options for hardware or software-based integration via I2C.

Physically compact at just 100 mm x 100 mm x 35 mm, the 1ET9040BA is ideal for space-constrained designs that demand top-tier audio fidelity. This module is the definitive choice for high-end amplifier designers and DIY audio builders who refuse to compromise.