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Audio Research D400

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US Audio Mart

Audio Research D-400 Stereo Power Amplifier - 200WPC, Solid State, With Original Box US Audio Mart $2,750 Mar 28, 2026

George Meyer AV

Audio Research D400MKII amplifier George Meyer AV $2,500 Mar 14, 2026

Bazos Czechia

Audio Research SP14, Audio Research D400 MKII Bazos Czechia CZK 84,990 Mar 7, 2026

Audio Graffiti

AUDIO RESEARCH > D400 Audio Graffiti €2,000 Mar 3, 2026

willhaben.at

AUDIO RESEARCH Power amplifier PROSPEKT D200, D300, D400 willhaben.at €29 Feb 28, 2026

Subito

audio research D 400 Subito €2,000 Feb 14, 2026

OLX Poland

Audio Research, przedwzmacniacz Reference 1 + 2 końcówki mocy D400 MK2 OLX Poland PLN 58,000 Jan 5, 2026

Reverb

Audio Research D-400 Stereo Power Amplifier – 200WPC, Solid State, With Original Box $2,750 Jan 4, 2026

HifiOnline

Prodám Audio Research / Audio Research SP14, Audio Research D400 MKII HifiOnline CZK 84,990 Nov 5, 2025

High Performance Stereo

Audio Research D400 MKII High Performance Stereo $2,380 40% Sep 8, 2017

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