Shindo Clairette

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Giscours

All Names:

RA1474
RA1474 II
Giscours RA1474 II
Giscours Model 378
Giscours WE 349A
Giscours CV 391

Categories:

Pre Amplifier
Monoblock
Stereo
Phono Only

Production Years:

Pre 1977 - Present

Pre Amplifier Lineup, 1980

RA1474

604S

Pre Amplifier Lineup, 1990

Petrus

Giscours RA1474

Catherine

Montrose

Martine

Allegro (604S)

Lepin

Mazeris Bellevus

Claret

Pre Amplifier Lineup, 2020

Giscours

Vosne - Romanee

Monbrison

Aurieges

Shindo's first pre amplifier, pre-dating the formation of Shindo Laboratory in 1977.  Originally a phono-only 'equalizer' its functionality expanded and it remained Shindos' top pre until the Petrus was introduced in the late 1980s. The Giscours has stayed in production and second-from-the-top since that time. It retook the lead only when the Petrus was discontinued in 2017.

Ken Shindo developed the first RA1474 pre-amplifier while working from home under the name "Shindo Research." This was a re-working of the Westrex RA-1474 circuit, a single-input MC phono equalizer using TRIAD transformers as step-ups and outputs, with dual- volume controls. Though images are scarce there are multiple variations of the RA1474 reported, indicating Ken Shindo constantly was experimenting with the sound.

After forming "Shindo Laboratory" in 1977 the RA1474 was its first product. A formal "Version 2" was released by 1983, moving to RCA and adding two line inputs. A later version integrated lessons learned from the Petrus, adding MM, multiple line inputs, and switching to a dual-monoblock configuration. By 2004 the Giscours had switched back to a single stereo unit using WE349A and finally the CV391 tubes.

Through its multiple variations the RA1474 / Giscours is Ken Shindos' first and longest lasting product.

 

Shindo RA1474 pre amplifier circa 1980

Shindo RA 1474 pre amplifier, 1981 product catalog

Shindo RA1474 pre amplifier circa 1980

Shindo RA 1471 pre amplifier, est 1978. Front knobs have been replaced

Shindo RA1474 pre amplifier circa 1980

Shindo RA 1471 pre amplifier, est 1978. Front knobs have been replaced

Shindo RA1474 pre amplifier circa 1980

Shindo RA 1471 pre amplifier, est 1978. RCA pin jacks and switch are a later modification by the customer.  

Shindo RA1474 pre amplifier circa 1980

Shindo RA 1471 pre amplifier, est 1978.

Shindo RA1474 pre amplifier kit est 1982

Shindo RA 1471 pre amplifier, est 1982. The brown case indicates this was a kit.

Name:

RA1474

Categories:

Pre Amplifier
Stereo
Phono Only

Years Produced:

1974 - 1986 (est)

MSRP:

Prebuilt ¥990,000 (Japan 1981)
Kit option ¥620,000 (Japan 1981)
Case option ¥5000 (Japan 1981)

A single-input, fully balanced MC phono equalizer designed for use with the Ortofon SPU cartridge. The design appears to be a non-holds-barred attempt at quality with little regard for price or convenience, a trait that would be carried to Shindos' first amplifier (the RA124D 6L6, aka Richebourg ) but soon tempered by a price drop and an expanding product line.
The RA1474 was available to purchase as a kit and bloggers have reported being invited to use a desk and tools at the Shindo Laboratory location to build and test their amplifiers.

Images of the RA1474 are scarce. The silver-faced unit shown here labeled 'Western Electric type RA1474' and 'shindou laboratory' is from between 1977 and 1980, after which we know the 'Shindo' spelling was adopted. It has replacement knobs and modifications to the rear to add switchable RCA outputs next to the balanced cannon outputs.  Note the reversed XLR connectors. 

The brown 'hammered' unit with a silver face labeled 'MODEL RA 1474' would have been sold as a kit and dates from the early 1980s. In these pictures the metal lids appear to be on upside down.

Description, Shindo product catalog, 1981:

Its style and quality are truly the ultimate in tube-type preamplifiers.

The TYPE RA1474 is the ultimate preamplifier that we were able to create precisely because we are a so-called "garage manufacturer." The fact that we were able to pursue sound quality to an extent that would be impossible with a cost-driven mass production system is precisely why we dare to accept the label of "garage manufacturer."

In its construction, the company devoted considerable effort to the selection of components. Eliminating all constraints, they carefully selected and installed only the highest quality parts imaginable. Furthermore, after several years of experimentation and listening tests of various EQ circuits, they adopted the Western Electric T604 circuit. The RA1474 is a preamplifier specifically designed for MC cartridges, excelling in music reproduction, yet it does not require a head amplifier or transformer. This crucial section, which greatly affects sound quality, utilizes a TRIAD transformer for optimal performance. Furthermore, the output stage is a powerful TRIAD push-pull design, minimizing cable loss and ensuring perfect drive of the main amplifier.

The RA1474 reproduces the atmosphere of the performance venue, the presence of people and instruments, and even the character of the performers—a sense of realism and lingering resonance that only a tube preamplifier can offer. It's as if it knows the heart of music and how to appeal to your sensibilities.

Specifications, Shindo product catalog, 1981:

• EQ: NF type equalizer
• Tubes: ECC83 x 4, RCA 5Y3 x 1
• Power Transformer: Shindo original high-regulation transformer
• Rectification: USA Oil condenser filter, MALLORY high ripple condenser
• Input Transformer: TRIAD
• Parts and Capacitors: SPRAGUE, CORNELL-DUBLIER, WEST-CAPITOL
DALE (power circuit), ALLEN-BRADLEY (signal circuit)
• Power cord: BELDEN
• Sockets: CINCH
• Circuit board: USECO
• Chassis: High-grade aluminum (interior only)
• Input \ Output SWITCHCRAFT
• Tantalum capacitors WET+ tantalum. CORNELL-DUBLIER
• Input/Output Gold plated
• Measurements: 190 (H), 343 (W), 470 (L)

Additional Details:

• Stereo, phono-only pre amplifier featuring a single MC phono input optimized for the Ortofon SPU cartridge
• Design is a re working of the Westrex RA-1474 using 12AY7 vacuum tubes
• Negative feedback Equalizer based on the "WE T604 circuit"
• Push-pull output stage
• Triad HS-1 input transformers
• Triad HS-52 output transformers
• Dual volume controls
• Balanced XLR (cannon) inputs and outputs, male/female XLR inputs reversed. The hot, cold, and shield connections are also completely different.
• Metal case with brushed silver faceplate with rack handles.
Case interior is compartmentalized with aluminum

Shindo Giscours RA1474 II pre amplifier est 1986

Shindo Giscours RA-1474 II pre amplifier, est 1986

Shindo Giscours RA1474 II pre amplifier est 1986

Faceplate (broken) for Shindo Giscours RA-1474 II pre amplifier, est 1988

Name:

RA1474 II

Categories:

Pre Amplifier
Stereo

Years Produced:

1982 (est) - 1989 (est)

MSRP:

By 1983 an upgraded version of the pre amplifier is released and named 'RA-1474 II.' I can find no images of this version.

In the RA-1474 II the MC phono input has been changed from XLR jacks to Switchcraft branded RCA pin jacks and two line-level inputs have been added, also RCA. Volume is still controlled by dual knobs. An un-labeled selector on the front allows switching between inputs. Outputs remain balanced XLR.

Between 1986 and 1989 at least two more variations of the RA-1474 II were released, both titled the "Giscours RA-1474 II".

The images in this section show the first of these units. The label "Giscours" indicate that the unit was made after 1985. Note that an additional phono input and switch have been installed in the back panel. There is no label for this input, likely a MM, indicating it was a custom order.

The last image shows a new (broken) faceplace with the Swan logo, dating it from 1987 or after.

Description:

None available

Specifications:

None available

Additional Details:

• TRIAD transformer for MC step up
• 2 x line inputs (RCA)
• Balanced XLR outputs, 600 Ohms

Shindo Giscours Model 378 pre amplifier, 1990

Shindo Giscours Model 378 pre amplifier, 1990 marketing brochure

Shindo Giscours Model 378 pre amplifier circa 1990

Shindo Giscours Model 378 pre amplifier circa 1990

Shindo Giscours Model 378 pre amplifier circa 1990

Shindo Giscours Model 378 pre amplifier circa 1990

Name:

Giscours Model 378

Categories:

Pre Amplifier
Monoblocks

Years Produced:

1990 (est) - 1997 (est)

MSRP:

¥1,140,000 (pair) (Japan 1990)

By 1990 the Giscours is changed to dual-mono chassis, a trend started by the Petrus pre amplifier. A MM phono input is permanently added to the design. Two additional line inputs are added for a total of four, and a gain control for the CD line input is added. At this point the Giscours has become the full-featured top model only surpassed by the cost-no-object Petrus. Shindo's status as an established manufacturer allows him raise prices in order to add convenience factors to the pre amplifier.

Though marketing materials still link Giscours directly to the RA-1474 in order to retain brand recognition, the title 'Model 378' is added. This appears to be part of an abandoned renaming effort parallel to choosing wine-themed names for products. There does not appear to be a 'Model 378' independent of the Giscours and this title will disappear by the end of the 1990s.

Description, Shindo marketing materials, 1990:

Since its release, the RA1474 has garnered overwhelming trust and acclaim from many audiophiles. Through repeated minor revisions it has been refined to a level of maturity. With its flexibility to handle any input source, and its unparalleled sense of scale and presence, it is a masterpiece among masterpieces of preamplifiers that will surely be passed down to the next generation.

Specifications, Shindo marketing materials, 1990:

• Input Sensitivity/Impedance
• Phono MC (pin jack) 0.2 mV/2Ω-600Ω
• Max Phono power Input: 1,500mV (1kHz)
• Output Level/Impedance: 10V/600 Ohm
• Harmonic Distortion: 0.01% PHONO
• RIAA Deviation: ±1dB (20Hz-20kHz
• S/N Ratio: 120dB
• Input Terminal: RCA pin jack
• Output Terminal: XLR jack
• Power Supply: AC 100V/1A
• Power Consumption: AC 100V, 50/60Hz, 80W
• External dimensions: 475 (W) x 85 (H) x 260 (D) mm
• Weight: 9 kg

Note: Built-in MC cartridge transformer/ OUTPUT transformer, and CD matching transformer

Additional Details:

• Though only the MC phono input is listed in the specifications the Giscours does include a MM input with a 47KΩ impedance
• 4 x line inputs (RCA)
• Rear gain controls for line inputs
• REC OUT outputs (RCA) with front-plate ON/OFF switch
• Tube rectification

Shindo Giscours 349A early version

Shindo Giscours WE 349A pre amplifier, earlier version circa 2004

Shindo Giscours 349A early version

Shindo Giscours WE 349A pre amplifier, earlier version circa 2004

Shindo Giscours 349A later version

Shindo Giscours WE 349A pre amplifier, later version circa 2009

Name:

Giscours (WE 349A)

Categories:

Pre Amplifier
Stereo

Years Produced:

2004 (est) - 2011 (est)

MSRP:

$29,000 (US 2004)

A new Giscours stereo design appears to have become available in 2004 though the Shindo website is not updated until 2005. The gain control has been removed and the tubes are changed. More notably the chassis moves back to a single, stereo unit utilizing fully discrete mono-circuits internally. The chassis becomes the rectangle shape which will prevail through the Shindo pre amplifier product lineup from this point onward.

The WE349A based unit continued to be a successful product for Shindo. There appear to be two variations in faceplate \ knob configurations for the WE349A version. The change removed the text "Western Electric 349A" from the faceplate and probably occurred in 2009 or 10 as units with the previous faceplate were still in stock at dealers in 2010 and sample CV391 units were being reviewed with the new faceplate by 2010.

In 2011 the WE349A is replaced by the CV391 tube, likely due to exhausting available stock of the former.

Description:

None available.

Specifications, Shindo website product page, Sep 2006:

• Input Sensitivity/Impedance:
 Phono MC (pin jack) 0.2mV/2-100Ω.
 Phono MM (pin jack) 3mV/100KΩ
• Phono input switchable
• Other Inputs: AUX. FM. TV. CD. (pin jack)
• S/N Ratio: 120dB/Line section non-NFB
• Frequency Response: 20Hz - 30KHz
• Output Level/Impedance: 8V/600Ω (Canon jack)
• Power Consumption: 100V-50W
• Power Supply: AC100V, 50/60Hz
• Dimensions: W 400×H 165×D 270 mm
• Weight: 11Kg

Additional Details:

• Amorphous core MC step up transformers
• Rectification: 2 x 6X4WA (one per channel)
• Phono Stage, per channel:
1 x GE 6072, shielded
1 x Philips 6AW8A, Triode + Pentode Driver
• Line Stage, per channel:
1 x JAN-GE 6X4WA Double Diode
1 x EF800 Pentode in Triode mode
• Power (per channel)
1 x WE349A

Shindo Giscours CV391 pre amplifier early version

Shindo Giscours CV391 pre amplifier circa 2011

Shindo Giscours CV391 pre amplifier early version

Shindo Giscours CV391 pre amplifier circa 2011

Shindo Giscours CV391 pre amplifier circa 2010

Shindo Giscours CV391 pre amplifier, est 2013

Shindo Giscours CV391 pre amplifier circa 2015

Shindo Giscours CV391 pre amplifier, est 2016

Name:

Giscours (CV 391)

Categories:

Pre Amplifier
Stereo

Years Produced:

2011 (est) - Present

MSRP:

In 2011 the tube lineup removes the WE 349A and incorporates the CV391.

From this point forward the specifications as listed on the Shindo website do not change. Faceplates, knobs and knob placement will change as the final Shindo style locks into place.

Description:

None available

Specifications, Shindo website product page, March 2013:

• Input Sensitivity/Impedance:
Phono MC (pin jack): 0.2mV/2-100Ω
Phono MM (pin jack): 3mV/100KΩ
• Phono Input selectable
• Other Inputs: AUX, FM, TV, CD (pin jack)
• S/N Ratio: 120dB / Line section non-NFB
• Frequency Response: 20Hz - 30KHz
• Output Level/Impedance: 8V/600Ω (Canon jack)
• Power Consumption: 100V-50W
• Power Supply: AC 117V or 220V-230V 50/60Hz
• Dimensions: W 400 × H 165 × D 270 mm
• Weight: 11kg

Additional Details:

CV391tubes used appear to be ITT badged 5B/255M

Shindo Giscours set-up documentation from 2015:

Giscours Stereo Pre-amplifier

Please place amplifiers horizontally in a cabinet.

~CAUTION~

Please put this amplifier on good ventilation place.

Phono Input MC (RCA Pin Jax)

When using MC cartridge, please turn the input switch to the left position.
This MC input is MC Step up transformers and perfectly with cartridge of until 3Ω output impedance.

Phono Input MM (RCA Pin Jax)

When using MM cartridge, please turn the input switch to the right position. MM cartridges of 1ΚΩ - 100ΚΩ are connectable. In case that you use separate MC step up transformer, please connect to input MM.

The other Input terminals fitted in this amplifier are CD FM AUX TV. (RCA Pin Jack)

~CAUTION~

It would recommend that the interconnect cables with Switchcraft 3502 plugs to those input Jacks of this pre amplifier.

Output (XLRJack): 8V/600 Ω

Please set up the preamplifier's main volume to the clock position more than 8:00 and adjust individual input level controllers of your power amplifier in accordance with it.

Fuse: Please use 2A slow blow Fuse only.

~CAUTION~

Before replacing fuse, please make sure that the power switch is off and the power cable is disconnected from a wall socket.