PIONEER Amplificateur de puissance stéréo SPEC 4 Vintage 1977 Hi End 300 Watts RMS Beau look fonctionne parfaitement Pioneer spec-4 Amplificateur de puissance stéréo (1977-80) Description Le Spec-4 utilise une construction DC qui exclut les condensateurs des circuits NFB et utilise un amplificateur différentiel à double transistor avec un circuit miroir de courant dans le 1er étage. Cela fournit un fonctionnement stable et également un gain élevé sur une large gamme de fréquences. Létage de pré-driver est un circuit de classe A avec un circuit de courant régulé pour la charge. Cela permet une amplification à gain élevé avec une linéarité supérieure. De plus, il existe un circuit limiteur de surmultiplication et limiteur de puissance conçu pour protéger les transistors de puissance et apporter une fiabilité accrue. Caractéristiques Puissance de sortie : 150 watts par canal dans 8? (stéréo) Réponse en fréquence : 5Hz à 100kHz Distorsion harmonique totale : 0,01 % Facteur damortissement : 100 Sensibilité dentrée : 1 V Rapport signal sur bruit : 115 dB Impédance de charge du haut-parleur : 4? à 16? Semi-conducteurs : 2 x CI, 61 x transistors, 62 x diodes Dimensions : 480 x 187 x 445 mm Poids : 24,5 kgPIONEER Amplificateur de puissance stéréo SPEC 4 Vintage 1977 Hi End 300 Watts RMS Beau look Le Spec-4 utilise une construction DC qui exclut les condensateurs des circuits NFB et utilise un amplificateur différentiel à double transistor avec un circuit miroir de courant dans le 1er étage. Cela fournit un fonctionnement stable et également un gain élevé sur une large gamme de fréquences. Létage de pré-driver est un circuit de classe A avec un circuit de courant régulé pour la charge. Cela permet une amplification à gain élevé avec une linéarité supérieure. De plus, il existe un circuit limiteur de surmultiplication et limiteur de puissance conçu pour protéger les transistors de puissance et apporter une fiabilité accrue. Puissance de sortie : 150 watts par canal dans 8? (stéréo) Semi-cond

PIONEER SPEC 4 Stereo Power Amplifier Vintage 1977 Hi End 300Watts RMS Good Look working perfect PIONEER spec-4 Stereo Power Amplifier (1977-80) Description The Spec-4 employs DC construction which excludes capacitors from the NFB circuits and uses a dual transistor differential amplifier with a current mirror circuit in the 1st stage. This provides a stable operation and also high gain over a wide frequency range. The pre-driver stage is a class A circuit with a regulated current circuit for the load. This makes for high gain amplification with superior linearity. Furthermore, there is an overdrive limiter and power limiter circuit which is designed to protect the power transistors and make for added reliability. specifications Power output: 150 watts per channel into 8? (stereo) Frequency response: 5Hz to 100kHz Total harmonic distortion: 0.01% Damping factor: 100 Input sensitivity: 1V Signal to noise ratio: 115dB Speaker load impedance: 4? to 16? Semiconductors: 2 x ICs, 61 x transistors, 62 x diodes Dimensions: 480 x 187 x 445mm Weight: 24.5kgPIONEER SPEC 4 Stereo Power Amplifier Vintage 1977 Hi End 300Watts RMS Good Look The Spec-4 employs DC construction which excludes capacitors from the NFB circuits and uses a dual transistor differential amplifier with a current mirror circuit in the 1st stage. This provides a stable operation and also high gain over a wide frequency range. The pre-driver stage is a class A circuit with a regulated current circuit for the load. This makes for high gain amplification with superior linearity. Furthermore, there is an overdrive limiter and power limiter circuit which is designed to protect the power transistors and make for added reliability. Power output: 150 watts per channel into 8? (stereo) Frequency response: 5Hz to 100kHz Speaker load impedance: 4? to 16? Semiconductors: 2 x ICs, 61 x t

This is an outstanding Pioneer Spec-4 power amplifier. It is in very good condition. The faceplate looks great and the unit is very clean. Everything is in working order and it really sounds great. Minor static in the knobs that could benefit from a cleaning. Previous owner engraved name and social into the back of the faceplate and side of the case. Dont miss this one while you have the chance! AtlantaModern is offering this amp NO RESERVE, high bidder wins it regardless of price. Thanks and Good Luck! AtlantaModern Auctions Please be sure to view our other auctions for the best in vintage sound! _gsrx_vers_1680 (GS 9.8.3 (1680))

This is a reprint of an Audio Brochure from Pioneer! A very rare brochure about the Series Twenty (U-24, C-21, D-23, M-22) from 1980. It is a beautiful brochure with 2 pages. This is the best Amplifier/Preamp EVER made from Pioneer! It has the Specs for all the units in the brochure. Many articles and pictures for the technology in this unit. It is from 1980. This a very rare brochure, a beautiful addition to your collection! You wont be disappointed! A piece of Audio History! I have THOUSANDS more Ads and Reviews on my Ebay Store. Email with ANY questions, THANKS! -Search for any brand you like on the left side in my Store Search bar. I have almost every popular Audio brand! -Each Page is 8.5 by 11 -Shipping is $3 in the USA and $6 ANYWHERE else, I ship WORLDWIDE! Each additional item is only $1 more to ship! -As always, your satisfaction is GUARANTEED at Electronics Archives! If you are unhappy with any purchase, email and I will get you a resolution or a refund! -Email me with any questions, I put 10-20 new Ads and Brochures on my site EVERY DAY! THANK YOU! Powered by eBay Turbo Lister The free listing tool. List your items fast and easy and manage your active items.

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 1979. It has info for the Pioneer SA-5800 Stereo 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.

This is a reprint of an Audio Review from 1977! This review will have SPECS, COMMENTARY, DETAILS, and INFORMATION about the unit listed. . You wont be dissapointed! A piece of Audio History! I have THOUSANDS more Ads and Reviews on my Ebay Store. Email with ANY questions, THANKS! -Search for any brand you like on the left side in my Store Search bar. I have almost every popular Audio brand! -Each Page is 8.5 by 11 -Shipping is $3 in the USA and $6 ANYWHERE else, I ship WORLDWIDE! Each additional item is only $1 more to ship! -As always, your satisfaction is GUARANTEED at Electronics Archives! If you are unhappy with any purchase, email and I will get you a resolution or a refund! -Email me with any questions, I put 10-20 new Ads and Brochures on my site EVERY DAY! THANK YOU! Powered by eBay Turbo ListerThe free listing tool. List your items fast and easy and manage your active items.

This is a reprint of an Audio Brochure from Pioneer! A very rare brochure about the reverb Amplifier line from 1980. It is a beautiful brochure with 4 pages. It has the Specs for the unit in the brochure. Many articles and pictures for the technology in this unit. It is from 1980. This a very rare brochure, a beautiful addition to your collection! You wont be disappointed! A piece of Audio History! I have THOUSANDS more Ads and Reviews on my Ebay Store. Email with ANY questions, THANKS! -Search for any brand you like on the left side in my Store Search bar. I have almost every popular Audio brand! -Each Page is 8.5 by 11 -Shipping is $3 in the USA and $6 ANYWHERE else, I ship WORLDWIDE! Each additional item is only $1 more to ship! -As always, your satisfaction is GUARANTEED at Electronics Archives! If you are unhappy with any purchase, email and I will get you a resolution or a refund! -Email me with any questions, I put 10-20 new Ads and Brochures on my site EVERY DAY! THANK YOU!

This is a reprint of an Audio Brochure from Pioneer! A very rare brochure about the Amplifier line from 1980. It is a beautiful brochure with 6 pages. These are the best Amplifiers and Preamps EVER made from Pioneer! It has the Specs for all the units in the brochure. Many articles and pictures for the technology in this unit. It is from 1980. This a very rare brochure, a beautiful addition to your collection! You wont be disappointed! A piece of Audio History! I have THOUSANDS more Ads and Reviews on my Ebay Store. Email with ANY questions, THANKS! -Search for any brand you like on the left side in my Store Search bar. I have almost every popular Audio brand! -Each Page is 8.5 by 11 -Shipping is $3 in the USA and $6 ANYWHERE else, I ship WORLDWIDE! Each additional item is only $1 more to ship! -As always, your satisfaction is GUARANTEED at Electronics Archives! If you are unhappy with any purchase, email and I will get you a resolution or a refund! -Email me with any questions, I put 10-20 new Ads and Brochures on my site EVERY DAY! THANK YOU! Powered by eBay Turbo Lister The free listing tool. List your items fast and easy and manage your active items.

Heute biete ich Ihnen folgendes an: Pioneer SPEC-4 Stereo Power Amplifier / Endstufe / recapped technischer Zustand: guter Zustand optischer Zustand: guter Zustand Falls Sie den oben aufgeführten Artikel ersteigern und diesen persönlich bei mir abholen, so können wir diesen sehr gerne gemeinsam auf den von mir angegebenen Zustand hin überprüfen. Kein Versand an Packstationen oder Paketshops !!! No shipping to USA

This is a reprint of an Audio Review from 1977! This review will have SPECS, COMMENTARY, DETAILS, and INFORMATION about the unit listed. . You wont be dissapointed! A piece of Audio History! I have THOUSANDS more Ads and Reviews on my Ebay Store. Email with ANY questions, THANKS! -Search for any brand you like on the left side in my Store Search bar. I have almost every popular Audio brand! -Each Page is 8.5 by 11 -Shipping is $3 in the USA and $6 ANYWHERE else, I ship WORLDWIDE! Each additional item is only $1 more to ship! -As always, your satisfaction is GUARANTEED at Electronics Archives! If you are unhappy with any purchase, email and I will get you a resolution or a refund! -Email me with any questions, I put 10-20 new Ads and Brochures on my site EVERY DAY! THANK YOU! Powered by eBay Turbo ListerThe free listing tool. List your items fast and easy and manage your active items.

This is a reprint of an Audio Brochure from Pioneer! A very rare brochure about the reverb Amplifier line from 1980. It is a beautiful brochure with 4 pages. It has the Specs for the unit in the brochure. Many articles and pictures for the technology in this unit. It is from 1980. This a very rare brochure, a beautiful addition to your collection! You wont be disappointed! A piece of Audio History! I have THOUSANDS more Ads and Reviews on my Ebay Store. Email with ANY questions, THANKS! -Search for any brand you like on the left side in my Store Search bar. I have almost every popular Audio brand! -Each Page is 8.5 by 11 -Shipping is $3 in the USA and $6 ANYWHERE else, I ship WORLDWIDE! Each additional item is only $1 more to ship! -As always, your satisfaction is GUARANTEED at Electronics Archives! If you are unhappy with any purchase, email and I will get you a resolution or a refund! -Email me with any questions, I put 10-20 new Ads and Brochures on my site EVERY DAY! THANK YOU!

This is a reprint of an Audio Brochure from Pioneer! A very rare brochure about the reverb Amplifier line from 1980. It is a beautiful brochure with 4 pages. It has the Specs for the unit in the brochure. Many articles and pictures for the technology in this unit. It is from 1980. This a very rare brochure, a beautiful addition to your collection! You wont be disappointed! A piece of Audio History! I have THOUSANDS more Ads and Reviews on my Ebay Store. Email with ANY questions, THANKS! -Search for any brand you like on the left side in my Store Search bar. I have almost every popular Audio brand! -Each Page is 8.5 by 11 -Shipping is $3 in the USA and $6 ANYWHERE else, I ship WORLDWIDE! Each additional item is only $1 more to ship! -As always, your satisfaction is GUARANTEED at Electronics Archives! If you are unhappy with any purchase, email and I will get you a resolution or a refund! -Email me with any questions, I put 10-20 new Ads and Brochures on my site EVERY DAY! THANK YOU!

This is a reprint of an Audio Brochure from Pioneer! A very rare brochure about the reverb Amplifier line from 1980. It is a beautiful brochure with 4 pages. It has the Specs for the unit in the brochure. Many articles and pictures for the technology in this unit. It is from 1980. This a very rare brochure, a beautiful addition to your collection! You wont be disappointed! A piece of Audio History! I have THOUSANDS more Ads and Reviews on my Ebay Store. Email with ANY questions, THANKS! -Search for any brand you like on the left side in my Store Search bar. I have almost every popular Audio brand! -Each Page is 8.5 by 11 -Shipping is $3 in the USA and $6 ANYWHERE else, I ship WORLDWIDE! Each additional item is only $1 more to ship! -As always, your satisfaction is GUARANTEED at Electronics Archives! If you are unhappy with any purchase, email and I will get you a resolution or a refund! -Email me with any questions, I put 10-20 new Ads and Brochures on my site EVERY DAY! THANK YOU! Powered by eBay Turbo Lister The free listing tool. List your items fast and easy and manage your active items.

This is a reprint of an Audio Brochure from Pioneer! A very rare brochure about the Amplifier line from 1980. It is a beautiful brochure with 6 pages. These are the best Amplifiers and Preamps EVER made from Pioneer! It has the Specs for all the units in the brochure. Many articles and pictures for the technology in this unit. It is from 1980. This a very rare brochure, a beautiful addition to your collection! You wont be disappointed! A piece of Audio History! I have THOUSANDS more Ads and Reviews on my Ebay Store. Email with ANY questions, THANKS! -Search for any brand you like on the left side in my Store Search bar. I have almost every popular Audio brand! -Each Page is 8.5 by 11 -Shipping is $3 in the USA and $6 ANYWHERE else, I ship WORLDWIDE! Each additional item is only $1 more to ship! -As always, your satisfaction is GUARANTEED at Electronics Archives! If you are unhappy with any purchase, email and I will get you a resolution or a refund! -Email me with any questions, I put 10-20 new Ads and Brochures on my site EVERY DAY! THANK YOU! Powered by eBay Turbo Lister The free listing tool. List your items fast and easy and manage your active items.

up for sale pioneer power amp spec-4 looks like all there tested lights on bu not working R-Meter light is out missing on and off knob sold as is sold as part only no returns.

This is a reprint of an Audio Brochure from Pioneer! A very rare brochure about the Amplifier line from 1980. It is a beautiful brochure with 6 pages. These are the best Amplifiers and Preamps EVER made from Pioneer! It has the Specs for all the units in the brochure. Many articles and pictures for the technology in this unit. It is from 1980. This a very rare brochure, a beautiful addition to your collection! You wont be disappointed! A piece of Audio History! I have THOUSANDS more Ads and Reviews on my Ebay Store. Email with ANY questions, THANKS! -Search for any brand you like on the left side in my Store Search bar. I have almost every popular Audio brand! -Each Page is 8.5 by 11 -Shipping is $3 in the USA and $6 ANYWHERE else, I ship WORLDWIDE! Each additional item is only $1 more to ship! -As always, your satisfaction is GUARANTEED at Electronics Archives! If you are unhappy with any purchase, email and I will get you a resolution or a refund! -Email me with any questions, I put 10-20 new Ads and Brochures on my site EVERY DAY! THANK YOU! Powered by eBay Turbo Lister The free listing tool. List your items fast and easy and manage your active items.

This is a reprint of an Audio Brochure from Pioneer! A very rare brochure about the reverb Amplifier line from 1980. It is a beautiful brochure with 4 pages. It has the Specs for the unit in the brochure. Many articles and pictures for the technology in this unit. It is from 1980. This a very rare brochure, a beautiful addition to your collection! You wont be disappointed! A piece of Audio History! I have THOUSANDS more Ads and Reviews on my Ebay Store. Email with ANY questions, THANKS! -Search for any brand you like on the left side in my Store Search bar. I have almost every popular Audio brand! -Each Page is 8.5 by 11 -Shipping is $3 in the USA and $6 ANYWHERE else, I ship WORLDWIDE! Each additional item is only $1 more to ship! -As always, your satisfaction is GUARANTEED at Electronics Archives! If you are unhappy with any purchase, email and I will get you a resolution or a refund! -Email me with any questions, I put 10-20 new Ads and Brochures on my site EVERY DAY! THANK YOU!

This is a reprint of an Audio Brochure from Pioneer! A very rare brochure about the Amplifier line from 1980. It is a beautiful brochure with 6 pages. These are the best Amplifiers and Preamps EVER made from Pioneer! It has the Specs for all the units in the brochure. Many articles and pictures for the technology in this unit. It is from 1980. This a very rare brochure, a beautiful addition to your collection! You wont be disappointed! A piece of Audio History! I have THOUSANDS more Ads and Reviews on my Ebay Store. Email with ANY questions, THANKS! -Search for any brand you like on the left side in my Store Search bar. I have almost every popular Audio brand! -Each Page is 8.5 by 11 -Shipping is $3 in the USA and $6 ANYWHERE else, I ship WORLDWIDE! Each additional item is only $1 more to ship! -As always, your satisfaction is GUARANTEED at Electronics Archives! If you are unhappy with any purchase, email and I will get you a resolution or a refund! -Email me with any questions, I put 10-20 new Ads and Brochures on my site EVERY DAY! THANK YOU! Powered by eBay Turbo Lister The free listing tool. List your items fast and easy and manage your active items.

This is a reprint of an Audio Brochure from Pioneer! A very rare brochure about the Amplifier line from 1980. It is a beautiful brochure with 6 pages. These are the best Amplifiers and Preamps EVER made from Pioneer! It has the Specs for all the units in the brochure. Many articles and pictures for the technology in this unit. It is from 1980. This a very rare brochure, a beautiful addition to your collection! You wont be disappointed! A piece of Audio History! I have THOUSANDS more Ads and Reviews on my Ebay Store. Email with ANY questions, THANKS! -Search for any brand you like on the left side in my Store Search bar. I have almost every popular Audio brand! -Each Page is 8.5 by 11 -Shipping is $3 in the USA and $6 ANYWHERE else, I ship WORLDWIDE! Each additional item is only $1 more to ship! -As always, your satisfaction is GUARANTEED at Electronics Archives! If you are unhappy with any purchase, email and I will get you a resolution or a refund! -Email me with any questions, I put 10-20 new Ads and Brochures on my site EVERY DAY! THANK YOU! Powered by eBay Turbo Lister The free listing tool. List your items fast and easy and manage your active items.

This is a reprint of an Audio Brochure from Pioneer! A very rare brochure about the reverb Amplifier line from 1980. It is a beautiful brochure with 4 pages. It has the Specs for the unit in the brochure. Many articles and pictures for the technology in this unit. It is from 1980. This a very rare brochure, a beautiful addition to your collection! You wont be disappointed! A piece of Audio History! I have THOUSANDS more Ads and Reviews on my Ebay Store. Email with ANY questions, THANKS! -Search for any brand you like on the left side in my Store Search bar. I have almost every popular Audio brand! -Each Page is 8.5 by 11 -Shipping is $3 in the USA and $6 ANYWHERE else, I ship WORLDWIDE! Each additional item is only $1 more to ship! -As always, your satisfaction is GUARANTEED at Electronics Archives! If you are unhappy with any purchase, email and I will get you a resolution or a refund! -Email me with any questions, I put 10-20 new Ads and Brochures on my site EVERY DAY! THANK YOU! Powered by eBay Turbo Lister The free listing tool. List your items fast and easy and manage your active items.

This is a reprint of an Audio Brochure from Pioneer! A very rare brochure about the Amplifier line from 1980. It is a beautiful brochure with 6 pages. These are the best Amplifiers and Preamps EVER made from Pioneer! It has the Specs for all the units in the brochure. Many articles and pictures for the technology in this unit. It is from 1980. This a very rare brochure, a beautiful addition to your collection! You wont be disappointed! A piece of Audio History! I have THOUSANDS more Ads and Reviews on my Ebay Store. Email with ANY questions, THANKS! -Search for any brand you like on the left side in my Store Search bar. I have almost every popular Audio brand! -Each Page is 8.5 by 11 -Shipping is $3 in the USA and $6 ANYWHERE else, I ship WORLDWIDE! Each additional item is only $1 more to ship! -As always, your satisfaction is GUARANTEED at Electronics Archives! If you are unhappy with any purchase, email and I will get you a resolution or a refund! -Email me with any questions, I put 10-20 new Ads and Brochures on my site EVERY DAY! THANK YOU! Powered by eBay Turbo Lister The free listing tool. List your items fast and easy and manage your active items.

This is a reprint of an Audio Review from 1977! This review will have SPECS, COMMENTARY, DETAILS, and INFORMATION about the unit listed. . You wont be dissapointed! A piece of Audio History! I have THOUSANDS more Ads and Reviews on my Ebay Store. Email with ANY questions, THANKS! -Search for any brand you like on the left side in my Store Search bar. I have almost every popular Audio brand! -Each Page is 8.5 by 11 -Shipping is $3 in the USA and $6 ANYWHERE else, I ship WORLDWIDE! Each additional item is only $1 more to ship! -As always, your satisfaction is GUARANTEED at Electronics Archives! If you are unhappy with any purchase, email and I will get you a resolution or a refund! -Email me with any questions, I put 10-20 new Ads and Brochures on my site EVERY DAY! THANK YOU! Powered by eBay Turbo ListerThe free listing tool. List your items fast and easy and manage your active items.

Follow us| Sign up for our newsletter Pioneer Spec 4 - Vintage Audiophile Classic Solid State Stereo Power Amplifier For over 20 years High End Audio Auctions has been selling the finest HiFi online, but did you know that we BUY your HiFi equipment as well? Contact our sister company STEREOBUYERS for a fair quote today! All items included are pictured. Items are tested fully to ensure all functions work as expected - any defects and additional service done to the item are noted below. Items are not restored or reconditioned, unless specified. All items we sell come with a 30-day warranty - your satisfaction is guaranteed. Original shipping on returns will be refunded at the sellers discretion. Local Pickup in NYC Available Pioneer Spec 4 Details & Testing Notes Cosmetic Condition:7/10: Good - Light signs of wear, looks used but well-maintained.- Unit was damaged in transit prior to us receiving it. The front panels left bottom corner has a slight bend to it. The plastic rear handles have been removed. Please see all high resolution photographs, including detailed inside shots below.Functional Notes:- Right meter does not work. Left meter is good. - Meter lights work. - Both channels play and sound is excellent.Voltage:110-240V 50/60HzSerial #:XH2900520MOriginal Box:NoManual:NoRemote:N/APower Cord:AttachedAdditional Items:NoShipping Method:FedEx Ground (Domestic) / FedEx Economy, USPS Priority, Ebay Standard Delivery (International)Shipping Weight:65lbs, 24x20x20 High-End Audio Auctions has been THE trusted source for high-end, classic and vintage audio components on eBay since 2000! Our unique products, unparalleled service and bombproof packaging keeps our customers coming back again and again. We are experts at selling and shipping worldwide, with items ranging from $5 to $50,000. We look forward to earning your repeat business! By placing a bid on any of our listings, you agree to our terms & conditions Click here to learn more Home| About Us| Store Policies| FAQs| Feedback| Contact Us| Custom Tuned Cables _gsrx_vers_1652 (GS 9.7.4 (1652))

This is a reprint of an Audio Review from 1977! This review will have SPECS, COMMENTARY, DETAILS, and INFORMATION about the unit listed. . You wont be dissapointed! A piece of Audio History! I have THOUSANDS more Ads and Reviews on my Ebay Store. Email with ANY questions, THANKS! -Search for any brand you like on the left side in my Store Search bar. I have almost every popular Audio brand! -Each Page is 8.5 by 11 -Shipping is $3 in the USA and $6 ANYWHERE else, I ship WORLDWIDE! Each additional item is only $1 more to ship! -As always, your satisfaction is GUARANTEED at Electronics Archives! If you are unhappy with any purchase, email and I will get you a resolution or a refund! -Email me with any questions, I put 10-20 new Ads and Brochures on my site EVERY DAY! THANK YOU! Powered by eBay Turbo ListerThe free listing tool. List your items fast and easy and manage your active items.