PURIFI EVAL2 Eigentakt Mono Amplifier Kit

The EVAL2 mono evaluation kit creates convenient signal and power supply connections for a mono 1ET400A setup. The kit is developed for evaluation purposes, but is perfect suitably for DIY applications.

The 1ET400A amplifier module yields an audio quality level that sets the standard for power amplifiers of any operating class. The power supply and signal connections, available at the pin header on the1ET400A module, require special attention. This EVAL2 provides a buffered input signal and handles the power supply connections for a 1ET400A module in a convenient way. The kit is supplied with a 1ET400A amplifier module, one FE01 stereo front-end module and a power supply cable set. The FE01 front-end module allows you to easily connect a compatible power supply with the supplied cable set. The signal input is connected through XLR. A set of banana speaker connectors make connecting a speaker easy. The FE01 front-end module uses the OPA1612 opamp as pre-gain stage and buffer. The total gain for the EVAL2 (FE01 and 1ET400A) is 27 dB, but can set for a total gain of 14 dB. The opamp receive their supply voltage through a pair of onboard low noise discrete voltage regulators. The EVAL2 is compatible with the Hypex SMPS1200A400 configured with unregulated Vaux rails. The supplied cable set has pre-attached connector housings for the FE01 on one end. The other end has pre-crimped terminals with separate connector housings. This allows you to connect the EVAL1 with any compatible power supply. The pre-crimped terminals and supplied JST housings are compatible with the SMPS1200A400.

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Highlights

Convenient 1-channel evaluation platform for 1ET400A

Balanced analog input (XLR) and banana-plug speaker connectors

On-board voltage regulators

Suitable for DIY projects

Two jumper selectable gain options

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Specifications

Article number EVAL2

Rated power output 425 watts at 4 ohms 227 watts at 8 ohms 450 watts at 2 ohms

Minimum load 2 ohms

Efficiency > 94%

Signal-to-noise ratio (SNR) 131 dB

Distortion 0.00017 %

THD+N at 20-20,000 Hz, 4 ohms, 100 watts

Frequency response 0 - 60,000 Hz

Gain 14 dB / 27dB

Input sensitivity -

Input impedance 4.4k ohms (14 dB) / 10.2k ohms (27 dB)

Amplifier Classification Class D

Circuit Topology Eigentakt

Speaker output channels 1

Input connection type XLR

Speaker output connection type Banana

DSP function -

Bluetooth -

EQ Adjustment -

Power Requirements 25 - 70 VDC (symmetric supply +/-)

Power inlet connector PCB connector

Current limit 25 A

Under/over voltage protection

Dimensions (L x W x H) 167 x 53 x 35 mm

Mounting hole spacing -

Mounting hole diameter -

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What’s In The Box?

1x 1ET400A amplifier module

1x FE01 stereo front-end module

1x Power supply cable set