The Purifi 1ET400A is the next evolution in Class D audio. Ultra low distortion delivers clean audio even as the power output increases. The Purifi 1ET400A is capable of up to 450 watts of power output per channel (all channels driven) while delivering extremely low distortion performance and an ultra low noise floor level. Make no mistake, Purifi amplifiers are among the top tier of ALL measured and objectively reviewed amplifiers (including Class AB amps).
Our 2ch Purifi 1ET400A is the perfect amp for the discerning audiophile who wants the best possible 2ch music setup. You get the same performance as well known boutique brands at a fraction of the cost!

Using I2C control of the Purifi modules through our Custom Input Buffer board allows us to offer features even some of the more expensive competitors are missing!

Gain Settings

• 4 ohm - 25.5dB/2.2Vrms (High), 20.5dB/3.9Vrms (Medium), 15.5dB/6.9Vrms (Low)
• 8 ohm - 25.5dB/2.3Vrms (High), 20.5dB/4.0Vrms (Medium), 15.5dB/7.1Vrms (Low)

High input gain setting matches up with the input gain of the Hypex NCxxxMP amplifiers, perfect for those wanting to mix Purifi amplifiers with Hypex amplifiers (such as for a home theater setup).

RCA vs. XLR
While our amplifiers use XLR inputs, it is perfectly fine (and fully supported by Purifi) for customers to use RCA to XLR cables to connect the amplifier to a source that only has RCA outputs.

Our cases may not be much to look at, but unlike our competitors who use overseas manufacturing, we have all of our cases manufactured in Nova Scotia, Canada (Protocase, Inc). This is part of our commitment to keep as much of our amplifiers as "home grown" as possible. It also ensures the highest possible quality aluminum and extremely precise CNC manufacturing.