Restored Phase Linear 4000 Autocorrelation Preamplifier in Excellent condition The 4000 Autocorrelation Preamplifier was a collaboration design by Bob Carver and Bill Skinner. It was designed to expand or decompress the sonics of recorded material. In audio parlance, its called dynamic headroom. In the midst of all the knobs and toggles was the four channel balance joystick. The 4000 had the capability of controlling up to six components: a tuner, two tape decks, two turntables and an auxiliary input. It had three switched and three unswitched AC plugs. The 4000 was manufactured from 1973 to 1977. It retailed for $600 but the price rose 10 % in 1977. Its still highly sought after today. We start with a visual inspection of all internal components to make sure there are no signs of stress or aging. Capacitors are checked for telltale sings of bulging or leaking, resistors are checked for signs of overheating or cracking, and transistors are checked for signs of stress or damage. Special attention is paid to the power supply which is the most common source of failure for preamps. We then power up the unit and run a simple 1k sine wave while monitoring the low voltage output on an oscilloscope for signs of distortion or noise to get a baseline.At this point we will lubricate and clean all switches and potentiometers (that are not sealed) with a high quality contact cleaner, and then re-test all functions for any signs of noise or scratching. The following work has been completed;Repair of the autocorrelation functionTraced and repaired lans and solder joints where needed total of 15Final bench and test found to be working within factory specs Service fee $ 189.50 Sounds great. From a smoke free home 30 day warranty.

Up for sale one Used Phase Linear Model 400 Original Owners Manual with Schematic. Free Shipping !

This is a reprint of an Advertisement from 1971! The picture is of the actual item, Mint Condition! Very rare and hard to find! 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 original Review from 1973.This review is audio history! The Phase 400 was one oft he first Super Amplifers in the early 1970s. Designed by Bob Carver who would go on to form the Carver Corporation in the late 1970s. This review has a full test of the product, full specs, and commentary. I have many more Phase Linear Ads and Reviews on my Ebay Store. THANKS! -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.

Restored Phase Linear 4000 Autocorrelation Preamplifier in Excellent condition The 4000 Autocorrelation Preamplifier was a collaboration design by Bob Carver and Bill Skinner. It was designed to expand or decompress the sonics of recorded material. In audio parlance, its called dynamic headroom. In the midst of all the knobs and toggles was the four channel balance joystick. The 4000 had the capability of controlling up to six components: a tuner, two tape decks, two turntables and an auxiliary input. It had three switched and three unswitched AC plugs. The 4000 was manufactured from 1973 to 1977. It retailed for $600 but the price rose 10 % in 1977. Its still highly sought after today. We start with a visual inspection of all internal components to make sure there are no signs of stress or aging. Capacitors are checked for telltale sings of bulging or leaking, resistors are checked for signs of overheating or cracking, and transistors are checked for signs of stress or damage. Special attention is paid to the power supply which is the most common source of failure for preamps. We then power up the unit and run a simple 1k sine wave while monitoring the low voltage output on an oscilloscope for signs of distortion or noise to get a baseline.At this point we will lubricate and clean all switches and potentiometers (that are not sealed) with a high quality contact cleaner, and then re-test all functions for any signs of noise or scratching. The following work has been completed;Repair of the autocorrelation functionTraced and repaired lans and solder joints where needed total of 15Final bench and test found to be working within factory specs Service fee $ 189.50 Sounds great. From a smoke free home 30 day warranty.

This is a reprint of an Audio Advertisement from 1977! The picture is of the actual item, Mint Condition! Very rare and hard to find! 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! -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 beautiful reprinted Collectors Advertisement from 1981! - Great for collectors and audiophiles! These are vintage RARE ADVERTISEMENTS for Some of the best Audio and Video Equipment ever made. Check out my Ebay Store for THOUSANDS more relating to electronics. -it is approx 9 by 11, 1 page as shown - I ship Worldwide! Shipping is $3 in USA,$6 elsewhere. -These ads look great framed or put in a binder, they can also add value when selling your equipment as many of them have specs and details about the audio equipment! -Please email for any questions. Check out my Ebay Store, ELECTRONICS ARCHIVES, for many more vintage ads! -Shipping discounts are given for additional items, It is $3 for your first item in USA,$6 international, then just $1 for each additional 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 Advertisement is a reprint from 1979, it is printed on matte photo paper and is in Excellent condition! The Picture is the picture 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 Page, Single Sided Ads, unless otherwise noted in the title. ---These Ads 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.

Welcome to Audio/Video Archives, the largest home of audio literature available on eBay! This Advertisement is a reprint from 1976, it is printed on glossy photo paper and is in Excellent condition! The Picture is the picture 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 Page, Single Sided Ads, unless otherwise noted in the title. ---These Ads 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 Lister The free listing tool. List your items fast and easy and manage your active items.

-This is a collectors item ADVERTISEMENT from 1974! Great for collectors and audiophiles! These are vintage RARE ads for Some of the best Audio and Video Equipment ever made. Check out my Ebay Store for THOUSANDS more relating to electronics. -These Ads have been APPRECIATING over the years, on average about 10% per year. They dont make any more of them! Once they are gone, they are gone! Some are over 50 years old! - Ready for framing and put on your wall! 100% original, no copies or reproductions. - I ship Worldwide! Shipping is $3 in USA,$6 elsewhere. -These ads look great framed or put in a binder, they can also add value when selling your equipment as many of them have specs and details about the audio equipment! -Please email for any questions. Check out my Ebay Store, ELECTRONICS ARCHIVES, for many more vintage ads! -Shipping discounts are given for additional items, It is $3 for your first item in USA,$6 international, then just $1 for each additional item! -All our ads are 100% ORIGINAL! They are from the year they are listed as. -Satisfaction guaranteed! THANKS! ELECTRONICS ARCHIVES Powered by eBay Turbo ListerThe free listing tool. List your items fast and easy and manage your active items.

This is beautiful reprinted Collectors Advertisement from 1981! - Great for collectors and audiophiles! These are vintage RARE ADVERTISEMENTS for Some of the best Audio and Video Equipment ever made. Check out my Ebay Store for THOUSANDS more relating to electronics. -it is approx 9 by 11, 1 page as shown - I ship Worldwide! Shipping is $3 in USA,$6 elsewhere. -These ads look great framed or put in a binder, they can also add value when selling your equipment as many of them have specs and details about the audio equipment! -Please email for any questions. Check out my Ebay Store, ELECTRONICS ARCHIVES, for many more vintage ads! -Shipping discounts are given for additional items, It is $3 for your first item in USA,$6 international, then just $1 for each additional Powered by eBay Turbo Lister The free listing tool. List your items fast and easy and manage your active items.

This is a RARE reprint of an Phase Linear Audio Brochure from 1979! It has information about the D-500, 700, 400, and 300, all series II. Very rare and hard to find! It has Features, Specs, and Information about the item(s). A piece of Audio History! I have THOUSANDS more Ads, Brochures, and Reviews on my Ebay Store. Email with ANY questions, THANKS! -If you want FREE SHIPPING, I can email you a digital version of this file so you can view and print it at home. Please email me if you want it that after you buy. -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 RARE reprint of an Phase Linear Audio Brochure from 1979! It has information for the 2000, 3000, and 4000 Preamps. All series II. Very rare and hard to find! It has Features, Specs, and Information about the item(s). A piece of Audio History! I have THOUSANDS more Ads, Brochures, and Reviews on my Ebay Store. Email with ANY questions, THANKS! -If you want FREE SHIPPING, I can email you a digital version of this file so you can view and print it at home. Please email me if you want it that after you buy. -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 an AMAZING disc for anyone who loves Phase Linear or Bob Carver products! This CD has 35 of the best and RAREST advertisements on it for many of Phase Linears BEST Amplifiers, Tape Decks, Preamps, and Speakers! I will list each ad individually below. The Picture above is the actual group of Ads that are scanned in on this CD. Satisfaction Guaranteed! Shipping is $3 in the USA, $6 outside of the USA, I SHIP WORLDWIDE! -You can print them out and frame them as many people do, or you can just read the specs, and artwork that graced the Ads over the years. -Will work in any computer! Works with Mac or PC. -I scanned them in at 500 DPI, so every detail is EXACTLY as it was on the original page. -Satisfaction Guaranteed! or your money back... -It wont go up in value as the original Ads will do, but you will have 35 of the BEST Ads Phase Linear ever created , and 2 RARE reviews of Classic Amplifiers saved forever! Upload them to web sites, use them as a screensaver, whatever! -I have the original Ads for sale on my Ebay Store if you want an investment that will go up in value every year. Here is the list of Ads and dates: -400 Amplifier, 1973 -700 B, 1975 -4000 Preamp, 1973 -400 Amplifier with Designer, 1974 -400 Series II, full specs, VERY RARE! 1978 -400 with Designer, full specs, article, 1974 -Phase 4000 Series II Preamp, article, 1979 -Phase 3000 Series II Preamp, article, specs, VERY RARE! 1979 -DRS 900 Amplifier, Article, specs, 1984 -Phase 8000 Turntable, article, 1979 -Phase 7000 Cassette Deck, Article, specs, AMAZING!! 1980 -700 Series II Amplifier, specs, article, most powerful ever! 1978 -700-B Amplifier, The 700 Club! RARE! 1974 -Phase III Speakers, AMAZING and RARE AD! 1978, entire line in Ad -P-580 Speakers, entire line, specs, article, 1978 -700 Amplifier, Original! Beautiful Ad, 1971 400 Amplifier, Original!, 1974 and 18 more! PLUS: -Rare review of the 400 Amplifier, 1973, 2 pages ,full specs and test! -Review of the 700 Amplifier, 3 pages, graphs, article, test, 1971

Restored Phase Linear 4000 Autocorrelation Preamplifier in Excellent condition The 4000 Autocorrelation Preamplifier was a collaboration design by Bob Carver and Bill Skinner. It was designed to expand or decompress the sonics of recorded material. In audio parlance, its called dynamic headroom. In the midst of all the knobs and toggles was the four channel balance joystick. The 4000 had the capability of controlling up to six components: a tuner, two tape decks, two turntables and an auxiliary input. It had three switched and three unswitched AC plugs. The 4000 was manufactured from 1973 to 1977. It retailed for $600 but the price rose 10 % in 1977. Its still highly sought after today. We start with a visual inspection of all internal components to make sure there are no signs of stress or aging. Capacitors are checked for telltale sings of bulging or leaking, resistors are checked for signs of overheating or cracking, and transistors are checked for signs of stress or damage. Special attention is paid to the power supply which is the most common source of failure for preamps. We then power up the unit and run a simple 1k sine wave while monitoring the low voltage output on an oscilloscope for signs of distortion or noise to get a baseline.At this point we will lubricate and clean all switches and potentiometers (that are not sealed) with a high quality contact cleaner, and then re-test all functions for any signs of noise or scratching. The following work has been completed;Repair of the autocorrelation functionTraced and repaired lans and solder joints where needed total of 15Final bench and test found to be working within factory specs Service fee $ 189.50 Sounds great. From a smoke free home 30 day warranty.

Welcome to Audio/Video Archives, the largest home of audio literature available on eBay! This Advertisement is a reprint from 1979, it is printed on matte photo paper and is in Excellent condition! The Picture is the picture 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 Page, Single Sided Ads, unless otherwise noted in the title. ---These Ads 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 Advertisement from 1977! The picture is of the actual item, Mint Condition! Very rare and hard to find! 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! -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 Advertisement is a reprint from 1976, it is printed on glossy photo paper and is in Excellent condition! The Picture is the picture 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 Page, Single Sided Ads, unless otherwise noted in the title. ---These Ads 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 Lister The free listing tool. List your items fast and easy and manage your active items.

-This is a collectors item ADVERTISEMENT from 1974! Great for collectors and audiophiles! These are vintage RARE ads for Some of the best Audio and Video Equipment ever made. Check out my Ebay Store for THOUSANDS more relating to electronics. -These Ads have been APPRECIATING over the years, on average about 10% per year. They dont make any more of them! Once they are gone, they are gone! Some are over 50 years old! - Ready for framing and put on your wall! 100% original, no copies or reproductions. - I ship Worldwide! Shipping is $3 in USA,$6 elsewhere. -These ads look great framed or put in a binder, they can also add value when selling your equipment as many of them have specs and details about the audio equipment! -Please email for any questions. Check out my Ebay Store, ELECTRONICS ARCHIVES, for many more vintage ads! -Shipping discounts are given for additional items, It is $3 for your first item in USA,$6 international, then just $1 for each additional item! -All our ads are 100% ORIGINAL! They are from the year they are listed as. -Satisfaction guaranteed! THANKS! ELECTRONICS ARCHIVES Powered by eBay Turbo ListerThe free listing tool. List your items fast and easy and manage your active items.

-This is a collectors item ADVERTISEMENT from 1974! Great for collectors and audiophiles! These are vintage RARE ads for Some of the best Audio and Video Equipment ever made. Check out my Ebay Store for THOUSANDS more relating to electronics. -These Ads have been APPRECIATING over the years, on average about 10% per year. They dont make any more of them! Once they are gone, they are gone! Some are over 50 years old! - Ready for framing and put on your wall! 100% original, no copies or reproductions. - I ship Worldwide! Shipping is $3 in USA,$6 elsewhere. -These ads look great framed or put in a binder, they can also add value when selling your equipment as many of them have specs and details about the audio equipment! -Please email for any questions. Check out my Ebay Store, ELECTRONICS ARCHIVES, for many more vintage ads! -Shipping discounts are given for additional items, It is $3 for your first item in USA,$6 international, then just $1 for each additional item! -All our ads are 100% ORIGINAL! They are from the year they are listed as. -Satisfaction guaranteed! THANKS! ELECTRONICS ARCHIVES Powered by eBay Turbo ListerThe free listing tool. List your items fast and easy and manage your active items.

Phase Linear 400 Stereo power amp amplifier that powers up and plays well. This amp has not been serviced and am not the original owner. As with all vintage gear this age it will require some degree of updating at some point. Both meters and lights work but the right light is brighter than the left. Shipping via FEDEX. The 2000 Preamplifier is NOT included although is listed on Ebay.

This is a RARE reprint of an Phase Linear Audio Brochure from 1979! It has information for the 2000, 3000, and 4000 Preamps. All series II. Very rare and hard to find! It has Features, Specs, and Information about the item(s). A piece of Audio History! I have THOUSANDS more Ads, Brochures, and Reviews on my Ebay Store. Email with ANY questions, THANKS! -If you want FREE SHIPPING, I can email you a digital version of this file so you can view and print it at home. Please email me if you want it that after you buy. -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 RARE reprint of an Phase Linear Audio Brochure from 1979! It has information about the D-500, 700, 400, and 300, all series II. Very rare and hard to find! It has Features, Specs, and Information about the item(s). A piece of Audio History! I have THOUSANDS more Ads, Brochures, and Reviews on my Ebay Store. Email with ANY questions, THANKS! -If you want FREE SHIPPING, I can email you a digital version of this file so you can view and print it at home. Please email me if you want it that after you buy. -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 an AMAZING disc for anyone who loves Phase Linear or Bob Carver products! This CD has 35 of the best and RAREST advertisements on it for many of Phase Linears BEST Amplifiers, Tape Decks, Preamps, and Speakers! I will list each ad individually below. The Picture above is the actual group of Ads that are scanned in on this CD. Satisfaction Guaranteed! Shipping is $3 in the USA, $6 outside of the USA, I SHIP WORLDWIDE! -You can print them out and frame them as many people do, or you can just read the specs, and artwork that graced the Ads over the years. -Will work in any computer! Works with Mac or PC. -I scanned them in at 500 DPI, so every detail is EXACTLY as it was on the original page. -Satisfaction Guaranteed! or your money back... -It wont go up in value as the original Ads will do, but you will have 35 of the BEST Ads Phase Linear ever created , and 2 RARE reviews of Classic Amplifiers saved forever! Upload them to web sites, use them as a screensaver, whatever! -I have the original Ads for sale on my Ebay Store if you want an investment that will go up in value every year. Here is the list of Ads and dates: -400 Amplifier, 1973 -700 B, 1975 -4000 Preamp, 1973 -400 Amplifier with Designer, 1974 -400 Series II, full specs, VERY RARE! 1978 -400 with Designer, full specs, article, 1974 -Phase 4000 Series II Preamp, article, 1979 -Phase 3000 Series II Preamp, article, specs, VERY RARE! 1979 -DRS 900 Amplifier, Article, specs, 1984 -Phase 8000 Turntable, article, 1979 -Phase 7000 Cassette Deck, Article, specs, AMAZING!! 1980 -700 Series II Amplifier, specs, article, most powerful ever! 1978 -700-B Amplifier, The 700 Club! RARE! 1974 -Phase III Speakers, AMAZING and RARE AD! 1978, entire line in Ad -P-580 Speakers, entire line, specs, article, 1978 -700 Amplifier, Original! Beautiful Ad, 1971 400 Amplifier, Original!, 1974 and 18 more! PLUS: -Rare review of the 400 Amplifier, 1973, 2 pages ,full specs and test! -Review of the 700 Amplifier, 3 pages, graphs, article, test, 1971