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APart Audio Champ 4, Quad Amplifier (professioneller Verstärker)

End: 12.04. 2024 05:22:34 on Friday
  • Condition: Used
  • Price: 350.0 EUR FESTPREIS
  • Status: unsold
  • Item number: 375276892113
  • Seller: ottownklr (2|100.0%)
  • Seller information: non commercial
  • Item location: Berlin Deutschland
  • Ships to: DE
  • Shipping: 10,49 EUR
  • on EBAY

Pioneer QA-800 QUAD Amplifier Brochure 6 pages, Specs, Info, Article

End: 07.04. 2024 13:00:05 on Sunday
  • Condition: Used
  • Price: 9.35 EUR FESTPREIS
  • Status: unsold
  • Item number: 145692364054
  • Seller: effgjm (22204|98.7%)
  • Seller information: Commercial (with base shop)
  • Item location: Olmsted Falls, Ohio USA
  • Ships to: Worldwide
  • Shipping: 3,0 EUR
  • on EBAY

Quad FM3 tuner with instructions and one connector PAT Tested

End: 06.04. 2024 06:58:51 on Saturday
  • Condition: Used
  • Price: 116.68 EUR FESTPREIS
  • Status: unsold
  • Item number: 145691028234
  • Seller: alebloomfiel0 (3385|99.0%)
  • Seller information: Commercial (with base shop)
  • Item location: Ipswich Großbritannien
  • Ships to: GB
  • Shipping: 31,43 EUR
  • on EBAY

Pioneer QA-800 QUAD Amplifier Brochure 6 pages, Specs, Info, Article

End: 17.03. 2024 14:12:10 on Sunday
  • Condition: Used
  • Price: 9.23 EUR FESTPREIS
  • Status: unsold
  • Item number: 145654880324
  • Seller: effgjm (22168|99.0%)
  • Seller information: Commercial (with base shop)
  • Item location: Olmsted Falls, Ohio USA
  • Ships to: Worldwide
  • Shipping: 3,0 EUR
  • on EBAY

Pioneer QA-800 QUAD Amplifier Brochure 6 pages, Specs, Info, Article

End: 08.03. 2024 14:36:16 on Friday
  • Condition: Used
  • Price: 9.18 EUR FESTPREIS
  • Status: unsold
  • Item number: 145622058268
  • Seller: effgjm (22125|98.9%)
  • Seller information: Commercial (with base shop)
  • Item location: Olmsted Falls, Ohio USA
  • Ships to: Worldwide
  • Shipping: 3,0 EUR
  • on EBAY

Pioneer QA-800 QUAD Amplifier Brochure 6 pages, Specs, Info, Article

End: 19.02. 2024 18:00:55 on Monday
  • Condition: Used
  • Price: 9.22 EUR FESTPREIS
  • Status: unsold
  • Item number: 166579487808
  • Seller: effgjm (22088|98.9%)
  • Seller information: Commercial (with base shop)
  • Item location: Olmsted Falls, Ohio USA
  • Ships to: Worldwide
  • Shipping: 3,0 EUR
  • on EBAY

Empire Quad Patrone Ad, 1972, 999VE/X, 1000ZE/X, Artikel, 1 Pg , Info

End: 07.02. 2024 18:54:19 on Wednesday
  • Condition: Used
  • Price: 9.3 EUR FESTPREIS
  • Status: unsold
  • Item number: 145349137311
  • Seller: effgjm (22021|98.9%)
  • Seller information: Commercial (with base shop)
  • Item location: Olmsted Falls, Ohio USA
  • Ships to: Worldwide
  • Shipping: 5,68 EUR
  • on EBAY

Empire Quad Patrone Ad, 1972, 1000ZE/X, 999VE/X, Artikel, Info, 1 Pg

End: 07.02. 2024 18:53:38 on Wednesday
  • Condition: Used
  • Price: 9.3 EUR FESTPREIS
  • Status: unsold
  • Item number: 145349137176
  • Seller: effgjm (22021|98.9%)
  • Seller information: Commercial (with base shop)
  • Item location: Olmsted Falls, Ohio USA
  • Ships to: Worldwide
  • Shipping: 5,68 EUR
  • on EBAY

Pioneer QA-800 QUAD Amplifier Brochure 6 pages, Specs, Info, Article

End: 02.02. 2024 16:20:45 on Friday
  • Condition: Used
  • Price: 9.22 EUR FESTPREIS
  • Status: unsold
  • Item number: 166577349064
  • Seller: effgjm (22085|98.9%)
  • Seller information: Commercial (with base shop)
  • Item location: Olmsted Falls, Ohio USA
  • Ships to: Worldwide
  • Shipping: 3,0 EUR
  • on EBAY

Pioneer QA-800 QUAD Amplifier Brochure 6 pages, Specs, Info, Article

End: 30.01. 2024 15:51:40 on Tuesday
  • Condition: Used
  • Price: 9.29 EUR FESTPREIS
  • Status: unsold
  • Item number: 166487281935
  • Seller: effgjm (22024|98.9%)
  • Seller information: Commercial (with base shop)
  • Item location: Olmsted Falls, Ohio USA
  • Ships to: Worldwide
  • Shipping: 3,0 EUR
  • on EBAY

Pioneer QA-800 QUAD Amplifier Brochure 6 pages, Specs, Info, Article

End: 21.11. 2023 14:36:30 on Tuesday
  • Condition: Used
  • Price: 8.2 EUR FESTPREIS
  • Status: unsold
  • Item number: 166385992188
  • Seller: effgjm (21951|98.9%)
  • Seller information: Commercial (with base shop)
  • Item location: Olmsted Falls, Ohio USA
  • Ships to: Worldwide
  • Shipping: 3,0 EUR
  • on EBAY
  • Description

    Welcome to Audio/Video Archives, the largest home of audio literature available on eBay! This is a Out of Print and Rare print Brochure from 1975. It has info for the Pioneer QA-800 Quadraphonic Amplifier. It will have Pictures and Articles of the item listed along with Specifications, Articles, Information and Commentary. The Picture is of the actual item. It is a beautiful piece of Audio History. I have THOUSANDS more from every major brand of Audio from 1950 up to now. ---Satisfaction is GUARANTEED at AV Archives! Take a look at my feedback for satisfied customers! I have been open since 2007 and have sold THOUSANDS of Ads, Reviews, and Brochures to satisfied customers. ---I Ship Worldwide and combine shipping, each additional item is just $1 after the first is paid. ---Each Page is 8.5 by 11 unless otherwise noted in title. ---Single-Sided professional matte photo pages, unless otherwise noted in the title. ---These Ads and Reviews are perfect for framing and placed in your Audio Room. ---I have a HUGE Vinyl Record Store with Thousands of Collectable records, and MANY First Pressings/Audiophile LPs. Just click on my Vinyl Record Store link on the left under categories. Email me for any specific questions, You will hear back from me usually within 4 hours, THANK YOU! Greg Powered by eBay Turbo ListerThe free listing tool. List your items fast and easy and manage your active items.

Original Verpackung inklusive Zubehöres der 1MORE Quad Driver In-Ear Headphones

End: 04.11. 2023 16:02:31 on Saturday
  • Condition: Used
  • Price: 30.0 EUR Auktion
  • Status: unsold
  • Item number: 175994359132
  • Bids: 0
  • Seller: ottofranz2011 (2042|99.5%)
  • Seller information: non commercial
  • Item location: Wächtersbach Deutschland
  • Ships to: DE
  • Shipping: 4,95 EUR
  • on EBAY
  • Description

    Original Verpackung inklusive Zubehöres der 1MORE Quad Driver In-Ear HeadphonesAchtumg: Nur edle OVP mit ZubehörEnthalten sind: -15 von 16 Kopfhörer Ohrstöpsel (ungenutzt) -original Lederetui mit magnetischem Verschluss -1 x Edelstahlclip zum Halten des Kabels -1 x Steckergebraucht aber in Ordnung, internationaler Versand gerne auf Anfrage, um die Portokosten vorab zu klären.

Original Verpackung inklusive Zubehöres der 1MORE Quad Driver In-Ear Headphones

End: 28.10. 2023 16:02:13 on Saturday
  • Condition: Used
  • Price: 30.0 EUR Auktion
  • Status: unsold
  • Item number: 175978384569
  • Bids: 0
  • Seller: ottofranz2011 (2036|99.5%)
  • Seller information: non commercial
  • Item location: Wächtersbach Deutschland
  • Ships to: DE
  • Shipping: 4,95 EUR
  • on EBAY
  • Description

    Original Verpackung inklusive Zubehöres der 1MORE Quad Driver In-Ear HeadphonesAchtumg: Nur edle OVP mit ZubehörEnthalten sind: -15 von 16 Kopfhörer Ohrstöpsel (ungenutzt) -original Lederetui mit magnetischem Verschluss -1 x Edelstahlclip zum Halten des Kabels -1 x Steckergebraucht aber in Ordnung, internationaler Versand gerne auf Anfrage, um die Portokosten vorab zu klären.

Sansui Quad QRX-6500, 3500 Empfänger Ad, 1975, Artikel, Schöne! 1 Page

End: 26.10. 2023 15:09:28 on Thursday
  • Condition: Used
  • Price: 6.62 EUR FESTPREIS
  • Status: unsold
  • Item number: 145364898276
  • Seller: effgjm (21949|98.9%)
  • Seller information: Commercial (with base shop)
  • Item location: Olmsted Falls, Ohio USA
  • Ships to: Worldwide
  • Shipping: 5,7 EUR
  • on EBAY
  • Description

    Sansui Quad QRX-6500, 3500 Empfänger Ad, 1975, Artikel, Schöne! 1 PageWenn Sie von dem US Marktplatz bestellen, können für die Pakete Steuern und Zollgebühren anfallen, die der Käufer später tragen muss.Sansui Quad QRX-6500, 3500 Empfänger Ad, 1975, Artikel, Schöne! 1 PageDas Datenblatt dieses Produkts wurde ursprünglich auf Englisch verfasst. Unten finden Sie eine automatische Übersetzung ins Deutsche. Sollten Sie irgendwelche Fragen haben, kontaktieren Sie uns. Willkommen bei Audio/Video Archives, der größten bei eBay verfügbaren Quelle für Audioliteratur! Bei dieser Anzeige handelt es sich um einen exakten Nachdruck aus dem Jahr 1975, sie ist auf mattem Fotopapier gedruckt und befindet sich in neuwertigem Zustand! Das Bild ist das Bild des tatsächlichen Artikels. Es ist ein wunderschönes Stück Audiogeschichte. Ich habe TAUSENDE weitere von allen großen Audiomarken von 1950 bis heute. ---Zufriedenheit ist bei AV Archives GARANTIERT! Schauen Sie sich mein Feedback für zufriedene Kunden an! Ich bin seit 2007 geöffnet und habe TAUSENDE Anzeigen, Rezensionen und Broschüren an zufriedene Kunden verkauft. ---Jede Seite ist 8,5 x 11 Zoll groß, sofern im Titel nichts anderes angegeben ist. ---Einseitige, einseitige Anzeigen, sofern im Titel nichts anderes angegeben ist. ---Diese Anzeigen eignen sich perfekt zum Einrahmen und Platzieren in Ihrem Audioraum. ---Ich habe einen RIESEN Schallplattenladen mit Tausenden von Sammlerstücken und VIELE Erstpressungen/Audiophile-LPs. Klicken Sie einfach links unter den Kategorien auf den Link „Mein Schallplattenladen“. Wenn Sie spezielle Fragen haben, senden Sie mir bitte eine E-Mail. In der Regel erhalten Sie innerhalb von 4 Stunden eine Antwort von mir. DANKE! Gregor Angetrieben von eBay Turbo ListerDas kostenlose Listing-Tool. Listen Sie Ihre Artikel schnell und einfach auf und verwalten Sie Ihre aktiven Artikel.Bei dieser Anzeige handelt es sich um einen exakten Nachdruck aus dem Jahr 1975, sie ist auf mattem Fotopapier gedruckt und befindet sich in neuwertigem Zustand! Das Bild ist das Bild des tatsächlichen Artikels. Es ist ein wunderschönes Stück Audiogeschichte. Ich habe TAUSENDE weitere von allen großen Audiomarken von 1950 bis heute. ---Zufriedenheit ist bei AV Archives GARANTIERT! Schauen Sie sich mein Feedback für zufriedene Kunden an! Ich bin seit 2007 geöffnet und habe TAUSENDE Anzeigen, Rezensionen und Broschüren an zufriedene Kunden verkauft. ---Ich habe einen RIESEN Schallplattenladen mit Tausenden von Sammlerstücken und VIELE Erstpressungen/Audiophile-LPs. Klicken Sie einfach links unter den Kategorien auf den Link „Mein Schallplattenladen“. Wenn Sie spezielle Fragen haben, senden S Brand Sansui Type paper Compatible Brand Sansui

Original Verpackung inklusive Zubehöres der 1MORE Quad Driver In-Ear Headphones

End: 21.10. 2023 16:01:47 on Saturday
  • Condition: Used
  • Price: 30.0 EUR Auktion
  • Status: unsold
  • Item number: 175963621377
  • Bids: 0
  • Seller: ottofranz2011 (2033|99.5%)
  • Seller information: non commercial
  • Item location: Wächtersbach Deutschland
  • Ships to: DE
  • Shipping: 4,95 EUR
  • on EBAY
  • Description

    Original Verpackung inklusive Zubehöres der 1MORE Quad Driver In-Ear HeadphonesAchtumg: Nur edle OVP mit ZubehörEnthalten sind: -15 von 16 Kopfhörer Ohrstöpsel (ungenutzt) -original Lederetui mit magnetischem Verschluss -1 x Edelstahlclip zum Halten des Kabels -1 x Steckergebraucht aber in Ordnung, internationaler Versand gerne auf Anfrage, um die Portokosten vorab zu klären.

Pioneer QA-800 QUAD Amplifier Brochure 6 pages, Specs, Info, Article

End: 19.10. 2023 18:25:34 on Thursday
  • Condition: Used
  • Price: 8.19 EUR FESTPREIS
  • Status: unsold
  • Item number: 145352329482
  • Seller: effgjm (21939|99.0%)
  • Seller information: Commercial (with base shop)
  • Item location: Olmsted Falls, Ohio USA
  • Ships to: Worldwide
  • Shipping: 3,0 EUR
  • on EBAY
  • Description

    Welcome to Audio/Video Archives, the largest home of audio literature available on eBay! This is a Out of Print and Rare print Brochure from 1975. It has info for the Pioneer QA-800 Quadraphonic Amplifier. It will have Pictures and Articles of the item listed along with Specifications, Articles, Information and Commentary. The Picture is of the actual item. It is a beautiful piece of Audio History. I have THOUSANDS more from every major brand of Audio from 1950 up to now. ---Satisfaction is GUARANTEED at AV Archives! Take a look at my feedback for satisfied customers! I have been open since 2007 and have sold THOUSANDS of Ads, Reviews, and Brochures to satisfied customers. ---I Ship Worldwide and combine shipping, each additional item is just $1 after the first is paid. ---Each Page is 8.5 by 11 unless otherwise noted in title. ---Single-Sided professional matte photo pages, unless otherwise noted in the title. ---These Ads and Reviews are perfect for framing and placed in your Audio Room. ---I have a HUGE Vinyl Record Store with Thousands of Collectable records, and MANY First Pressings/Audiophile LPs. Just click on my Vinyl Record Store link on the left under categories. Email me for any specific questions, You will hear back from me usually within 4 hours, THANK YOU! Greg Powered by eBay Turbo ListerThe free listing tool. List your items fast and easy and manage your active items.

Original Verpackung inklusive Zubehöres der 1MORE Quad Driver In-Ear Headphones

End: 14.10. 2023 16:01:35 on Saturday
  • Condition: Used
  • Price: 30.0 EUR Auktion
  • Status: unsold
  • Item number: 175947725475
  • Bids: 0
  • Seller: ottofranz2011 (2021|99.5%)
  • Seller information: non commercial
  • Item location: Wächtersbach Deutschland
  • Ships to: DE
  • Shipping: 4,95 EUR
  • on EBAY
  • Description

    Original Verpackung inklusive Zubehöres der 1MORE Quad Driver In-Ear HeadphonesAchtumg: Nur edle OVP mit ZubehörEnthalten sind: -15 von 16 Kopfhörer Ohrstöpsel (ungenutzt) -original Lederetui mit magnetischem Verschluss -1 x Edelstahlclip zum Halten des Kabels -1 x Steckergebraucht aber in Ordnung, internationaler Versand gerne auf Anfrage, um die Portokosten vorab zu klären.

Original Verpackung inklusive Zubehöres der 1MORE Quad Driver In-Ear Headphones

End: 07.10. 2023 16:01:09 on Saturday
  • Condition: Used
  • Price: 30.0 EUR Auktion
  • Status: unsold
  • Item number: 175932522425
  • Bids: 0
  • Seller: ottofranz2011 (2017|99.4%)
  • Seller information: non commercial
  • Item location: Wächtersbach Deutschland
  • Ships to: DE
  • Shipping: 4,95 EUR
  • on EBAY
  • Description

    Original Verpackung inklusive Zubehöres der 1MORE Quad Driver In-Ear HeadphonesAchtumg: Nur edle OVP mit ZubehörEnthalten sind: -15 von 16 Kopfhörer Ohrstöpsel (ungenutzt) -original Lederetui mit magnetischem Verschluss -1 x Edelstahlclip zum Halten des Kabels -1 x Steckergebraucht aber in Ordnung, internationaler Versand gerne auf Anfrage, um die Portokosten vorab zu klären.

Pioneer QC-800 QUAD Amplifier Brochure 2 pages, Specs, Info, Article

End: 04.10. 2023 16:18:47 on Wednesday
  • Condition: Used
  • Price: 7.28 EUR FESTPREIS
  • Status: unsold
  • Item number: 145339557465
  • Seller: effgjm (21933|99.0%)
  • Seller information: Commercial (with base shop)
  • Item location: Olmsted Falls, Ohio USA
  • Ships to: Worldwide
  • Shipping: 3,0 EUR
  • on EBAY
  • Description

    Welcome to Audio/Video Archives, the largest home of audio literature available on eBay! This is a Out of Print and Rare print Brochure from 1974. It has info for the Pioneer QC-800 Quadraphonic Amplifier. It will have Pictures and Articles of the item listed along with Specifications, Articles, Information and Commentary. The Picture is of the actual item. It is a beautiful piece of Audio History. I have THOUSANDS more from every major brand of Audio from 1950 up to now. ---Satisfaction is GUARANTEED at AV Archives! Take a look at my feedback for satisfied customers! I have been open since 2007 and have sold THOUSANDS of Ads, Reviews, and Brochures to satisfied customers. ---I Ship Worldwide and combine shipping, each additional item is just $1 after the first is paid. ---Each Page is 8.5 by 11 unless otherwise noted in title. ---Single-Sided professional matte photo pages, unless otherwise noted in the title. ---These Ads and Reviews are perfect for framing and placed in your Audio Room. ---I have a HUGE Vinyl Record Store with Thousands of Collectable records, and MANY First Pressings/Audiophile LPs. Just click on my Vinyl Record Store link on the left under categories. Email me for any specific questions, You will hear back from me usually within 4 hours, THANK YOU! Greg Powered by eBay Turbo ListerThe free listing tool. List your items fast and easy and manage your active items.

Original Verpackung inklusive Zubehöres der 1MORE Quad Driver In-Ear Headphones

End: 30.09. 2023 16:00:19 on Saturday
  • Condition: Used
  • Price: 30.0 EUR Auktion
  • Status: unsold
  • Item number: 175917764256
  • Bids: 0
  • Seller: ottofranz2011 (1995|99.4%)
  • Seller information: non commercial
  • Item location: Wächtersbach Deutschland
  • Ships to: DE
  • Shipping: 4,95 EUR
  • on EBAY
  • Description

    Original Verpackung inklusive Zubehöres der 1MORE Quad Driver In-Ear HeadphonesAchtumg: Nur edle OVP mit ZubehörEnthalten sind: -15 von 16 Kopfhörer Ohrstöpsel (ungenutzt) -original Lederetui mit magnetischem Verschluss -1 x Edelstahlclip zum Halten des Kabels -1 x Steckergebraucht aber in Ordnung, internationaler Versand gerne auf Anfrage, um die Portokosten vorab zu klären.

Original Verpackung inklusive Zubehöres der 1MORE Quad Driver In-Ear Headphones

End: 23.09. 2023 15:59:54 on Saturday
  • Condition: Used
  • Price: 30.0 EUR Auktion
  • Status: unsold
  • Item number: 175904799594
  • Bids: 0
  • Seller: ottofranz2011 (1994|99.4%)
  • Seller information: non commercial
  • Item location: Wächtersbach Deutschland
  • Ships to: DE
  • Shipping: 4,95 EUR
  • on EBAY
  • Description

    Original Verpackung inklusive Zubehöres der 1MORE Quad Driver In-Ear HeadphonesAchtumg: Nur edle OVP mit ZubehörEnthalten sind: -15 von 16 Kopfhörer Ohrstöpsel (ungenutzt) -original Lederetui mit magnetischem Verschluss -1 x Edelstahlclip zum Halten des Kabels -1 x Steckergebraucht aber in Ordnung, internationaler Versand gerne auf Anfrage, um die Portokosten vorab zu klären.

One metre pair of Gotham Audio XLR Male to Female Star Quad XLR audio cable

End: 19.09. 2023 18:01:13 on Tuesday
  • Condition: New: Other
  • Price: 199.0 EUR FESTPREIS
  • Status: unsold
  • Item number: 155649587455
  • Seller: hifiman087 (521|100.0%)
  • Seller information: non commercial
  • Item location: Cork Island
  • Ships to: Worldwide
  • Shipping: 29,95 EUR
  • on EBAY
  • Description

    ** A Fine pair of One metre high performance - Gotham Audio Star Quad audio cables ** XLR cables have very nice heavy & solid top quality metal XLR connectors. ** Free international postage **

Quad PA-One+ Valve Headphone Amplifier - Half original RRP (£1400) - Free P&P

End: 13.09. 2023 21:29:52 on Wednesday
  • Condition: Used
  • Price: 815.01 EUR FESTPREIS
  • Status: sold
  • Item number: 186078543028
  • Seller: the_audiobarn_ltd (514|100.0%)
  • Seller information: Commercial
  • Item location: Harlow Großbritannien
  • Ships to: GB
  • Shipping: 50,91 EUR
  • on EBAY
  • Description

    Quad PA-One+ Valve Headphone Amplifier - Half original RRP (£1400) - Free P&PItem Description Quad PA-One+ Valve Headphone Amplifier - Half original RRP (£1400) - Free P&PExcellent overall condition, one careful owner from new. Just one blemish which is minor and not typically in view (see pics)Supplied in original packaging with valve cover, manual and power cable. Shipped via FREE fully insured courier service. Free DeliveryWe offer free delivery anywhere in Mainland UK.Fully insured for your peace of mind.International CustomersWe are happy to ship outside the UK on some of our listings.If shipping has not been quoted by eBay through its GSP (Global Shipping Programme) please contact us for a quote. Thanks.Returns PolicyWe want you to be happy with your purchase. If you wish to return an item, please contact us within 14 days to obtain a returns reference.The item must be in the same condition as you received it - including all packaging.Contact UsThe Audiobarn2 Feltimores ParkOld HarlowEssex CM17 0PFTel: 01279 454 860www.theaudiobarn.co.ukRegistered Company No. 9309546VAT No. GB 202 0625 71

Quad 405 like clone board PCBs, heatsinks, part components (pair)

End: 31.08. 2023 10:53:50 on Thursday
  • Condition: New: Other
  • Price: 25.32 EUR Auktion
  • Status: sold
  • Item number: 235152650301
  • Bids: 6
  • Seller: dorj8 (1260|100.0%)
  • Seller information: non commercial
  • Item location: Camberley Großbritannien
  • Ships to: GB
  • Shipping: 31,55 EUR
  • on EBAY
  • Description

    A pair of Chinese produced PCBs and heatsinks to make a clone or similar replica of the original Quad 405 current dumping amplifier. The heatsinks are T shaped as in the original design. There are also a number of components provided including MJ15003 power transistors (cant tell if they are genuine...) and other transistors, resistors, ICs, pads, fuses, capacitors and Dada provided inductors. See photographs. There is probably about 90% of the components needed to complete a pair these amplifiers but I CANNOT guarantee this. If you peruse on line youll find which of the transistors in the provided packs are substitutes for the originals. I would suggest these are suitable only for a competent hobbyist or electrical engineer. I am clearing out a number of parts I accumulated for making my own Quad 405/606 and NAP amplifiers plus a few other items. The PCBs were brought back from China but the heatsinks and most components have been bought in the UK. Being Chinese clones of the original designs, please be aware there may be errors or substitute components. I have no reason to suspect there are any issues with these products but please be aware that some checking may be needed. The creator LJM of some of the Quad boards has been around for some time and is active on a number of hobbyist audio sites and so I believe his stuff to be reliable. Note - these boards have the Zobel network connected to signal ground as in the original Quad design. This means there has to be two separate earth connections to the boards as per the original Quad 405 design (one connection via input sockets, one via heatsink mounting point). The boards will work perfectly fine in this configuration. It is recommended however to make a small correction to the boards to allow only a single earth connection to be made. See the attached note and photograph for details. The starting price reflects the number of items provided......