earliest sansui Q55 EL34 power amp +SP220 stereo preamp Start Price USD 1,899.00 Current Price USD 1,899.00 Time Left - Bid Count 0 Buy It Now Price - Reserve Price - Start Time Sunday, November 16, 2008 End Time Wednesday, November 26, 2008 Location hk See more about 'earliest sansui Q55 EL34 power amp +SP220 stereo preamp' Description sareh88 Store earliest sansui Q55 EL34 power amp +SP220 stereo preamp this auction for one pair full match Q55 mono power amp and  stereo pre amplifier SP-220 , one auction include 2 power amp and one preamp .The Model Q-55 was built in 1957. It is in good condition and works very well. The Tubes are 2x 12AU7 Matsushita / 2x EL 34 (6CA7), 1x 5AR4. It delivers more than 40 Watts into 8 Ohm.  The Amp is very heavy. AC 100 ~117 ~220 ~ 240v SANSUI SP220 preamp , Hi-end product in 1958 , it is frist stereo preamp in sansui . plug and play now , condition is fine ,some old caps leak  they are using 6x4 12AT7x2 12AX7x4 . voltage input 100v . rare in world and hard to find in ebay . the sound is warm and best listen lady jazz . Sansui Products in Tube Era : It would be almost impossible to figure out exactly how many tube related products Sansui ever produced. An educated guess from the available information is about three or four scores of finished products, such as amplifiers, receivers, and tuners as well as a few hundreds of transformers. The very first Sansui product was a power transformer called the P-422H introduced in 1944. This was before Mr. Kikuchi founded Sansui Electric. The first products from the Sansui electric include the P-88H, the S-42, the B-501, and the C-801 in 1947. The preceding letters, "P" and "S" signified power transformers, the letter "B" was for output transformers, and the letter "C" was meant to be Choke Coils. In 1952, Sansui introduced eight input transformers, whose prefix was the letter "A", in addition to 44 new models in the existing Series. The first Sansui amplifiers introduced include the HPR-100(120), the HPR-150(200), the HF-2A3S, the HF-A3K, the HF-6V6P, and the HF-V6K in 1954. The prefix "HPR" signified pre-amplifiers, and the prefix "HF" was for power amplifiers. These amplifiers were sold in three different ways, a semi-complete kit, a complete kit, and a finished product. In 1956, Sansui introduced the first receivers, the PM-R500 and the PM-V600. In 1957, Sansui started the Q Series that signifies the higher output power amplifiers. This series include the Q-50, Q-101, Q-55, and the first stereo power amplifier Q-3535 in 1958. The first stereo pre amplifier SP-220 was introduced in 1958 as well. In 1959, the first stereo pre-main amplifier SM-88 was introduced. The "SM" prefix was used for the first stereo pre-main amplifier; however, after the SM-88, the "SM" prefix was used for stereo receivers, such as the SM-30 and the SM-80. Meanwhile, Sansui introduced the first hi-fi output transformer FW-754 in 1952 followed by the HW-731 and the HW-733 that were for Williamson type amplifiers in 1954. In 1955, a new Series of output transformers, the CW-781, the CW-782, and the CW-783 were introduced. Sansui transformer reputation in these early days was like "Inexpensive, well built, and extremely reliable although looks somewhat unstylish."  Until 1963, Sansui introduced various SM Series of receivers. Some of these receivers were also used as core units for the separate stereo ASP series. As being mentioned in the history section, Sansui introduced 15 hi-fi transformers in this year. Also 1963 was the year Sansui introduced the 500 and the 1000 Receivers, and that was a beginning of the last Sansui tube generation.                The most significant products in this period were the 500, the 1000, the 500A, and the1000A in receivers. The AU-70 and the AU-111 integrated amplifiers brought the definite Sansui reputation in amplifiers. The CA-303 pre amplifier, the BA-202 and the BA-303 power amplifiers were the very last Sansui tube amplifiers. Some audio columnist reported that because these amplifiers were so well built, he could not believe they were designed and constructed by a Japanese hi-fi company (this was way before "Made in Japan" became synonymous to high quality). One of the very interesting characteristics of these units (excluding the BA-202 and the BA-303) was that they adopted the new technology, transistors, in low signal level amplification stages.  The last remark should be mentioned is that Sansui never cut corners on any of its products in this era; Sansui receivers were built more like an unit with a tuner and an amplifier together, and Sansui pre-main amplifiers were built like an unit with a control and a power amplifiers together. This was the very reason why customers loved Sansui products - simply well engineered, well built, and sounded superb.  Certain images and/or photos used in this template are the copyrighted property of JupiterImages and are being used with permission under license. Place a Bid!