HIFIIn stock

HFA-2500 Stereo Power Amplifier

Model code: YB-HFA2500

A 2 x 250 W Class AB flagship with two 800 VA transformers and enough current reserve for 2 Ohm loads.

2 x 250 W into 8 Ohm, 2 x 400 W into 4 Ohm, 800 W bridged
Two 800 VA transformers and 160 000 uF of supply capacitance
Temperature controlled fan that stays off below 45 degrees
Twelve layer main board with a star ground per channel

List price€2,190.00

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Ships in 3-5 business days

Technical specifications

Output

Channels: 2
Amplifier class: Class AB
Power per channel at 8 Ohm: 250 W
Power per channel at 4 Ohm: 400 W
Bridged output: 800 W

Measured performance

THD + N: 0.004 %
Signal to noise ratio: 116 dB
Damping factor: 260
Frequency response: 5 Hz - 120 kHz (+0 / -1 dB)

Connectivity

Input sensitivity: 1.2 V for rated output (29 dB gain)
Input impedance: 47 kOhm unbalanced / 94 kOhm balanced
Inputs: 2x XLR balanced, 2x RCA, 1x 12 V trigger in
Outputs: A/B binding posts, 1x 12 V trigger out

Mechanical

Cooling: Passive with temperature controlled fan
Protection: DC offset, over-temperature, short circuit, soft start
Rack height: 3 U
Dimensions: 440 x 160 x 420 mm
Net weight: 24.8 kg

Overview

HFA-2500 Stereo Power Amplifier

The HFA-2500 doubles the output stage of the HFA-1200 and raises the supply to plus/minus 82 V. It delivers 250 W per channel into 8 Ohm and stays stable into 2 Ohm loads.

A temperature controlled fan engages only above 45 degrees Celsius, so the amplifier is silent in normal listening. Biasing is set per channel and can be re-adjusted through the top panel without removing the board.