HIFIPre-order

HFA-500M Mono Power Amplifier

Model code: YB-HFA500M

A 500 W monoblock with a 100 kOhm balanced input and a 200 mm wide chassis built for short speaker cables.

Monoblock layout, 1 x 500 W into 8 Ohm and 900 W into 4 Ohm
100 kOhm balanced input with a discrete JFET front end
Vertically stacked heatsink for a 200 mm wide chassis
Short circuit and DC protection with relay isolation

List price€2,690.00

Approved dealers see wholesale tiers after signing in. Account

Ships in 2-3 weeks

Technical specifications

Output

Channels: 1
Amplifier class: Class AB
Power per channel at 8 Ohm: 500 W
Power per channel at 4 Ohm: 900 W

Measured performance

THD + N: 0.003 %
Signal to noise ratio: 119 dB
Damping factor: 300
Frequency response: 3 Hz - 150 kHz (+0 / -1 dB)

Connectivity

Input sensitivity: 1.4 V for rated output (30 dB gain)
Input impedance: 100 kOhm balanced / 47 kOhm unbalanced
Inputs: 1x XLR balanced, 1x RCA, 1x 12 V trigger in
Outputs: One pair of binding posts, 1x 12 V trigger out

Mechanical

Cooling: Passive convection with vertical heatsink
Protection: DC servo, over-temperature, short circuit, inrush limiter
Rack height: 3 U
Dimensions: 200 x 180 x 400 mm
Net weight: 21 kg

Overview

HFA-500M Mono Power Amplifier

The HFA-500M is a single channel amplifier for listeners who want one chassis per speaker. The narrow 200 mm chassis makes it easy to place close to the loudspeaker and keep speaker cables short.

Power supply capacitance is 80 000 uF with a 1000 VA transformer. The output stage runs on plus/minus 95 V rails and is protected by a DC servo and a relay that disconnects the loudspeaker within 200 ms of a fault.