Made from a pair of the famous 6973 based amplifiers that were fitted in the incredibly expensive Ampex stereo consoles. Famous in their own right, they compete with amplifiers MANY times their price. The issue is that they are usually found unfinished, as they were pulled from the back of consoles and never meant to be seen. This pair, however was made using the original transformers and built onto custom chassis with copper tops, high quality sockets and all high quality modern parts.
While the transformers were painted, they are the original TRIAD OPT that were custom wound by Ampex for these units. If you look carefully you can see that the tube sockets are slightly recessed. This is because the tube sockets were built onto a SECOND COPPER CHASSIS that was then fitted and secured underneath using silicon and felt rings for better vibration isolation from the main chassis!!This was a time consuming and expensive undertaking to make everything fit perfectly. Tube complement is 6973 x 2, 6CA4/EZ81 rectifier, 12AU7/ECC82 (or in this case Brimar 13D5 which is an ECC802S, premium equivalent) and 6084 E80F Ampex Gold PIn PQ substituted for the EF86. Output power is listed as 15w/channel.
Tubes are included as seen... But untested recently so NOT guaranteed. My guess is they all test fine. These were my personal amps... I would have swapped them out at any point if I had doubts or issues.
No power cords are included. These amps are in working condition and sound wonderful, but they DO HAVE a slight hum to them and will need someone to look at them for a likely capacitor change, I would imagine. Please keep that in mind. Since these were removed from the console and rebuilt, all the extraneous stuff was taken out of the signal path.
The pilot light, series plug, extra speaker posts, gain pot and hum pot etc. Anything that could affect the sound. At the time these were made, Ampex tube preamplifiers and amplifiers were used in just about every recording studio in the world. Their gear (including their home audio gear) was incredibly expensive.
To this day, many studios are still using and maintaining the original Ampex tube gear as it has NEVER been bettered for sound quality. At the time, Pilot amplifiers, Fisher, Eico, even Mcintosh amplifiers were all priced BELOW Ampex gear. And the sound quality justified the price. You will be very pleased with the sound and quality of these amps. This is a once in a lifetime opportunity.The item "AMPEX 6973 MONOBLOCK TUBE AMPLIFIERS TRIAD TRANSFORMERS" is in sale since Sunday, December 1, 2019. This item is in the category "Consumer Electronics\Vintage Electronics\Vintage Audio & Video\Vintage Amplifiers & Tube Amps". The seller is "walden-puddle" and is located in San Jose, California. This item can be shipped to United States, Canada, United Kingdom, Denmark, Romania, Slovakia, Bulgaria, Czech republic, Finland, Hungary, Latvia, Lithuania, Malta, Estonia, Australia, Greece, Portugal, Cyprus, Slovenia, Japan, China, Sweden, South Korea, Indonesia, Taiwan, South africa, Belgium, France, Hong Kong, Ireland, Netherlands, Poland, Spain, Italy, Germany, Austria, Bahamas, Israel, New Zealand, Singapore, Switzerland, Norway, Saudi arabia, Ukraine, United arab emirates, Qatar, Kuwait, Bahrain, Croatia, Malaysia, Barbados, Bangladesh, Bermuda, Bolivia, Egypt, Guadeloupe, Iceland, Jordan, Sri lanka, Luxembourg, Macao, Martinique, Maldives, Pakistan, Reunion, Uruguay.