Acoustic Research AR-4

UK Audio Mart

Telefunken Mullard - Rectifier GZ34 (5AR4) (150 %) UK Audio Mart €115 Dec 1, 2025

UK Audio Mart

Telefunken Mullard GZ34 & 5AR4, NOS, NIB (original sealed!!!) UK Audio Mart €199 Dec 1, 2025

UK Audio Mart

Raytheon - Rectifier GZ34 (5AR4) / NOS / NIB (rar) UK Audio Mart €150 Nov 30, 2025

Subito

Casse acustiche AR 4x Subito €350 Nov 29, 2025

2ememain

Aoustic reaserch ar4x luidsprekers 2ememain €125 Nov 29, 2025

UK Audio Mart

Valvo Mullard - Rectifier GZ34 (5AR4) / NOS / NIB (rar) UK Audio Mart €199 Nov 28, 2025

UK Audio Mart

Siemens Mullard - Rectifier GZ34 (5AR4) / NOS / NIB (rar) UK Audio Mart €199 Nov 28, 2025

Mercari Japan

GZ34 5AR4　真空管　MULLARD VALVO 金属ベース　イギリス製の画像 Mercari Japan ¥130,000 Nov 25, 2025

Canuck Audio Mart

1 Vintage Amperex Bugle Boy GZ34 5AR4 Rectifier Tube Double D Getters Holland Canuck Audio Mart CA$100 Nov 24, 2025

Canuck Audio Mart

3 x NOS National 5AR4 /GZ34 rectifier tubes for sale Canuck Audio Mart CA$100 Nov 23, 2025

Subito

DIFFUSORI AR4X Subito €450 Nov 22, 2025

Reverb

Vintage Pair Acoustic Research AR-4x Bookshelf Speakers $199 Nov 22, 2025

Canuck Audio Mart

4 Vintage Mullard GZ34 5AR4 Rectifier Tubes Testing Strong Canuck Audio Mart CA$100 Nov 19, 2025

2dehands BE

AR-4xa vintage luidspekers in prima staat. 2dehands BE €150 Nov 18, 2025

2ememain

Ar-4xa vintage luidspekers in prima staat. 2ememain Auction bid
€150 Nov 18, 2025

Den Blå Avis

Genalex u77 gz34 (5ar4) Den Blå Avis DKK 400 20% Nov 17, 2025

Reverb

Vintage Pair Acoustic Research AR-4x Bookshelf Speakers $249 Nov 14, 2025

Reverb

Vintage Pair Acoustic Research AR-4x Bookshelf Speakers $249 Nov 14, 2025

Review33

出售: Mullard gz34/5ar4鋸牙屏一支 Review33 - Oct 30, 2025

Subito

Coppia crossover AR-4x Subito €30 Oct 22, 2025

Bazos Czechia

Reproduktor, centr, AR, model AR4c Bazos Czechia CZK 1,999 Oct 14, 2025

Subito

Casse Acustiche AR 4ax Subito €170 15% Oct 1, 2025

Vatera

AverMedia AM133 Live Streamer Mic Black 40AAAM133AR4 Periféria Mikrofon Vatera HUF 29,990 Sep 27, 2025

US Audio Mart

Amperex For HP 5AR4 GZ34 F32 Blackburn UK US Audio Mart $160 Sep 22, 2025

Reverb

Acoustic Research AR4x speakers in good condition - 1970's $210 11% Sep 14, 2025

Mercado Livre Brazil

Amplificador Nca Usb100ar4 Funciona Tudo! Veja O Vídeo!! Prateado 110 W 127/220v Mercado Livre Brazil R$282 20% Sep 10, 2025

Subito

Acoustic Research Ar4xa Subito €200 13% Sep 4, 2025

Hifido

GE 5AR4 Hifido ¥3,636 Sep 2, 2025

Hifido

TOSHIBA 5AR4 Hifido ¥4,091 Sep 2, 2025

Subito

Nr.2 BTICINO LNC4804AR PLACCA 4P ANTRACITE SERIE A Subito €10 Aug 24, 2025

Subito

ar-4x acoustic research Subito €230 Aug 21, 2025

SpringAir

Canton AR 4 SpringAir €299 Jul 22, 2025

Reverb

Acoustic Research AR4 speakers in very good condition - 1970's $300 Jul 9, 2025

Reverb

Acoustic Research AR4x speakers in excellent condition - 1970's $300 25% Jul 9, 2025

US Audio Mart

Matched Pair Mullard GZ34 / 5AR4 Blackburn England 1966 Matched Date Code US Audio Mart $375 Jun 29, 2025

US Audio Mart

Mullard Wide/Fat Base GZ34/5AR4 OO-Getter Blackburn England 1959 f31 B9F US Audio Mart $250 Jun 29, 2025

OLX Portugal

Acoustic Research AR-4x - colunas monitoras vintage OLX Portugal €175 May 12, 2025

Canuck Audio Mart

GZ34-5AR4 Mullard Vintage Rectifiers Canuck Audio Mart CA$125 17% May 5, 2025

Rakutan-Rakuma

スピーカー　ACOUSTIC RESEARCH AR-4X AR　寄生指動を制動 Rakutan-Rakuma ¥62,700 22% Apr 8, 2025

Mercari Japan

スピーカー　ACOUSTIC RESEARCH AR-4X AR　寄生指動を制動の画像 Mercari Japan ¥52,800 34% Apr 8, 2025

Subito

AR 2 e AR 4 aX Subito €400 Apr 3, 2025

ACME Elettronica

ACOUSTIC RESEARCH Ar10 pigreco mk3+Ar 4xa vendo-ma solo in blocco ACME Elettronica €1,400 Mar 21, 2025

Gebrauchte Veranstaltungstechnik

Camco AR-DU-4P Anschlussfeld Gebrauchte Veranstaltungstechnik €50 50% Mar 20, 2025

Subito

Valvole Prima Luna G A R 4 Subito €30 25% Feb 19, 2025

Subito

Casse stereo AR 4ax acoustic research casse stereo Subito €200 Jan 10, 2025

Reverb

PAIR OF CLOTH GRILL - ACOUSTIC RESEARCH AR 4 - 99% LIKE ORIGINAL - 100% FIT NICELY $139 56% Dec 8, 2024

Reverb

ACOUSTIC RESEARCH 11" CONES .RECONE YOUR woofer TO AS NEW INCLUDES SURROUNDS! PAIR PMR SPEAKER PARTS AR4X $26 Oct 30, 2024

Reverb

One Pair Acoustic Research AR-4(?) $299 Oct 20, 2024