Tube-Amps.net:
Yesterday, Today, and Beyond....
Hashimoto Sound:
The NEO-SANSUI Sound
- The
SANSUI Traditions Continue
It has been 10 years since this site introduced the Hashimoto transformers
in the world. Thousands of our customers all over the world
have been enjoying the most vivid and transparent sound quality that
Hashimoto transformers can bring to their audio equipment.
Over the last 30 years, various digital sources
and related hardware have been brought into the market. However, analog software
still seems to be able to deliver the most musical and real-life like
sound quality that can satisfy our desire to appreciate the music. By
the same token, well-built tube amplifiers can deliver the most natural and
realistic sound quality than other counterparts can do. Even if the music source needs to be digital, well-built
tube amplifiers can naturalize and smooth out the harshness of the digital sound
whereas other counterparts tent to enhance the shortcomings of the digital sound.
It certainly seems like well-built tube amplifiers are destined to be the most
desirable amplifier for any kind of music source.
In this reincarnation of tube amplifier technology for
both analog and digital music sources, Hashimoto transformers are at the forefront of
the continuous evolution of the transformer technologies since the 1950's when
Sansui started the original transformer business. Although this web site
has not been updated for several years, we have brought various new products in
the market that further improve and enrich your
high-fidelity music experience.
Here are some examples of our finest new products
introduced in the last several years (The HM-7, the H-EQL, the A-115, the A-305,
and the H-20-600 are the products we initiated or requested the development at
Hashimoto).
HM-7 -- MC Step-Up transformer with certified OFC
copper windings -- x15 / x30 (23dB / 29dB) gain
H-EQL -- Coils for LCR equalizer
HI-6-10K -- High quality input transformer 600 Ohms :
10K Ohms
HI-6-47K -- High quality input transformer 600 Ohms :
47K Ohms
A-115 (per order basis) -- 5K 1:1 Internstage transformer optimized for
Single-Ended Operation (can not be used for push-pull)
A-305 (per order basis) -- High DC current (up to 40mA DC) 5K 1:1 Internstage transformer optimized for Single-Ended Operation (can not be used
for push-pull)
H-20-600
(per order basis) -- 20W class Single-Ended Output Transformer
with 600 Ohms primary for Russian 6C33C tube
*** Please contact us for product
availability and special pricing at
support@obsinc.us
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Sansui Electric in Early Days
Those who know Sansui with the famed later
products, such as the BA-5000, the CA-3000, or the AU-20000, or receivers
and tuners, such as the G-33000 or TU-919, might say "Sansui Tube Gear???"
However, the reality was that Sansui built its foundation with transformer
business, and established its first international fame with the 1000A Tube
Receiver. Of course, the most signature tube product was the AU-111 at
the very end of tube era followed by less known, but impressive tube
amplifiers.
More details....
Sansui Products in Tube Era
Sansui's very first product lines were bare transformers; this means no
Sansui amplifiers or no Sansui receivers at the beginning. After the initial success with
high quality transformers, Sansui started marketing kit amps and
receivers followed by many well built tube amplifiers and receivers.
One thing in common among these early Sansui products was that Sansui never
compromised in quality. This philosophy in quality was Sansui's absolute priority
until the late 1970's when Sansui started marketing some inexpensive models
under the same brand name. More
details....
Who is Hashimoto Electric?
Hashimoto Electric Co., Ltd, started its business in 1958
as an OEM transformer manufacturer. From its beginning, Sansui Electric was one of Hashimoto’s main customers. Since Sansui spanned off its entire
transformer business - including all blue prints, patents, distribution /
sales force, and even Sansui's original logo - to Hashimoto in 1979,
Hashimoto Electric has been maintaining Sansui's product philosophy and
quality traditions. Even today, Hashimoto sells Sansui transformers
with Sansui's original logo on them. In addition to these Sansui
transformers, Hashimoto started manufacturing own tube transformers in 2002.
More details....
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Hashimoto Products
Hashimoto supplied the famed AU-111 transformers to Sansui
 when Sansui
reissued the AU-111 Vintage in 1999. Now, Hashimoto offers own branded tube
transformers in 34 different models. These transformers have been
designed from the ground up based upon the 60 years of accumulated know-how
and technologies. A few critics stated, "The sound via Hashimoto
transformers simply belong to a different level compared with others."
More details and technical
specifications.....
Tube Amp Projects Utilizing Hashimoto
Transformers
These nine amplifiers utilizing Hashimoto transformers were originally
featured on Japanese hi-fi magazines in 2003 and 2004. These
applications include Push-Pull and Single-Ended with KT-88, EL34, EL84, etc.
Some of applications use coupling transformers, as well.
More details.....
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What's New
Key Issues
 | Why Sansui? Sansui used to dominate the Japanese Tube
hi-fi industry with tube transformers as well as receivers and
amplifiers. |
| Who is Hashimoto? Hashimoto Electric became a Sansui's
transformer OEM in 1979 by inheriting all Sansui transformer
technologies. |
| Can I buy new or used replacement transformers for Sansui AU-111,
AU-70, or 1000A Receiver? YES |
| Can I buy the newest Hashimoto transformers?
YES |
| Can I find other high-end tube parts?
YES |
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