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PURIFI 1ET400A 3-Channel

Out of Stock
All amplifiers are individually assembled and tested to ensure the highest quality and performance.
$1,495.00Buy Now
Power
  • 450 watts @ 2 ohm
  • 425 watts @ 4 ohm
  • 225 watts @ 8 ohm
  • (per channel, 1kHz, 1% THD)
Fidelity
  • S/N: 131dB
  • FR: 0 - 60KHz
  • THD: 0.00017% (100W, 4Ω, 20Hz-20kHz)
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International customers please contact us before ordering.

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).

Custom I/O Board:

  • Neutrik XLR connectors
  • Gold plated 5-way speaker binding posts
  • Low, Med, High Gain settings
  • TI OPA1612 OP Amp
  • TI TPS7A30/49 Voltage Regulators
  • Auto Sensing On/Off
  • 12v trigger On/Off
  • Muted soft-start/shutdown (minimizes speaker “pop” when turning on and off)
  • Clipping Indication (via front power LED)
  • Error Indication (via front power LED)
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 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.
Please see our FAQ section for more information if necessary.

Specifications:

  • (3) PURIFI 1ET400A modules
  • (1) Hypex SMPS1200A400
  • High Input Impedance: 51K
  • Ultra High Damping Factor
  • High 25A Output Current (per channel)
  • Power Efficiency = 94%
  • All aluminum case w/black powder coat finish
  • 14" wide x 14" deep x 3.5" high, 10lbs
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.

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