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A Pair of Hashimoto HM-3 MC Step-Up transformers for Denon Ortofon Cartridge



A Pair of Hashimoto HM-3 MC Step-Up transformers for Denon Ortofon Cartridge

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New Page 1 FOR SALE A Pair of New MC Cartridge Step-Up transformers HM-3 (1:20 or 1:40 Amplification) from Hashimoto Electric Co., Ltd. Tokyo, Japan With 21st Technologies Based on 60 years of Sansui Experiences Introducing the Hashimoto HM-3: The Hashimoto HM-3 step-up transformer is designed squarely aimed at high-end low output MC cartridges; such as Ortofon products, at the 1:40amplification ratio. The HM-3 can also be set for mid range output level cartridges such as, Denon products, at the 1:20 amplification ratio. The sound of the HM-3 is simply amazing. The sonic information is extremely rich, three dimensional, not only very wide in right and left, but I can hear the height as well as the depth of instrument positions. The sound quality is very much Hashimoto Sound, which is engineered to be as close to real music as possible. The reference amplifiers for sound engineering at Hashimoto are highly fine-tuned and modified Sansui AU-Alpha907 Limited and AU-Alpha607 MOS Limited by Mr. Ohshima at Aqua Audio Lab who was a manager at Sansui for the high-end amplifier department from the early 1980’s to 2000. Thus, all Hashimoto tube transformers follow the sound characteristics of high-end Sansui, and further engineered to be more vivid and realistic (Please refer to our Hashimoto Transformer Technical Aspects page for more details on technical issues as well as Hashimoto Product Design Philosophy.). The very unique aspect of the HM-3 is that you can use it for either high-end transistor amps or tube amp system with MM cartridge inputs. I have tested the HM-3 with an Ortofon MC-20 cartridge on Sansui AU-111 Integrated Tube Amplifier (1964), Sansui AU-919 (1978), Sansui AU-X701 (1986), Sansui AU-Alpha907MRX (1994), and my home made 300B SE with Hashimoto PT-270, C-10-200W, H-20-3.5U (2005). As the results, I have discovered that the HM-3 tends to reveal more about the characteristics of amplifiers than SACD or DVDA software does. This is as if putting a high performing race car motor in different chassis; very revealing, but you can expect the maximum performance of your own system. The HM-3 measures 58 (W) x 52 (D) x 55 (H) mm, and weighs 0.5Kg (1.1 LB). The core of the HM-3 consists of Permalloy C (Super Permalloy) with triple copper shields potted in the special pitch. The frequency range is 15 to 50,000Hz -1dB with 12 Ohms (Serial) or 3 Ohms (Parallel) Primary, and the 4.7K Ohms secondly loads. The amplification ratios can be switched between 1:20 (26dB) and 1:40 (32dB) by connecting two primary windings in serial or parallel. The recommended secondary impedance is 47K Ohms. Here are example photos of MC Step-Ups using the HM-3 (If you are interested in finished step-up units like these, please let us know. The black and silver models on the left two photos, "Live! MC-10" are now for sale on eBay. Please visit our eBay Store.). Here is a comment for our step-up unit, "Live! MC-10" from one of our European customers, After burning in the transformer for some hours I must tell you this: The curtain is up! Now your transformer sounds detailed, dynamical, with rich tone (but not coloring), sweet, has a huge soundstage, with full precise bass, ... - just great congratulations After all the comparison with other transformers in different chains we have madeall the people listening are sure that this is (one of) the best transformers available today. We have tried the transformer in different chains with electrostatic speakers (Quad 66), dualconcentric speakers (Tannoy GRF and others), home made high efficiency speakers. In most cases we used the Ortofon SPU Synergy Pick Up and different preamps, vintage and new ones. We have compared it with the Audiotechnica AT-800 OCC, Denon AU-320, Ortofon SPU T-100, Mr. Aschenbrenner's "little" SPU-Transformer from Auditorium 23, (unfortunately we could not make a direct comparison with Tamura’s/ sun audio but earlier tests rated the Audio Technica, higher than the sun audio so we assume that yours is superior) And now all participants are sure that this is the reference for today's transformers. Who is Hashimoto Electric anyway? Hashimoto is by-no-means a new comer in this very traditional, but exciting industry. Hashimoto Electric, Ltd., in Tokyo Japan has been a long-time Sansui transformer OEM (since 1960’s). Hashimoto merged Sansui’s transformer business in 1978, and Hashimoto was the company who reproduced the AU-111 transformers when Sansui reissued the famed AU-111 in 1999 as the AU-111 Vintage. As a matter of fact, Hashimoto is the only company that still carries the original Sansui logo on its product lines, and some of Hashimoto’s key engineers are ex-Sansui engineers. Today, Hashimoto Electric produces not only various traditional transformers that Sansui pioneered many years ago, but also high-end tube amp transformers under its own brand name. The amazing thing is that all Hashimoto transformers are still handcrafted one-by-one by very skilled and experienced employees (Please refer to the actual photos I took when visited Hashimoto last June). Because some of Hashimoto engineers have more than 40 years of transformer designing experiences through out Sansui and Hashimoto era, all Hashimoto transformers still maintain the superior characteristics and sound of Sansui transformers. In addition, all Hashimoto transformers are redesigned from the ground up. This means that Hashimoto transformers are the 21st Century products that have been fine-tuned with computer aided programs and have utilized new materials that were simply not available forty some years ago. As the result, the HM-3 is one of the leading Hashimoto products that have been winning reputations among critics as, "The sound through Hashimoto transformers simply belongs to a different class compared with that of competitions." Who are we? We are a Michigan based corporation being in the IT related business since the early 1990's. We have been exploring the web based business opportunities since 2002, and today we are the authority of Sansui literatures with more than 1,000 customers. Almost all of our Sansui literature business have been conducted through web space for the last three years. Now, we are expanding our horizon into the hi-fi hardware business by introducing the best products available in the world. Because our business is entirely based on the web space, our priority is nothing but the customer satisfaction and customer support. Please purchase our products with confidence.