History of the Company

 

47 laboratory started with Junji Kimura’s poor satisfaction on the sound of CD playback. He was an eminent engineering designer and a passionate audiophile at the same time. His technological development started when he found more frustrated with the sound of CD playback systems.

He found the CD sounded too thin and sharp, that he decided to apply his proven engineering talents of creating a CD transport to elicit the best sound possible from CD. Through a series of experiments and developments, he finally found a prototype of his CD transport presented at 1995 WCES. That became a starting point for him to attract dealers’ attention and offerings even if there was no final product yet.

While Junji Kimura was busy completing his transport design, another man named Koji Teramura, headed to his workshop to listen on the prototype. They talked about the process of selecting and eliminating the sound impurities and the creation of the transport.

The creation of transport was indeed impressive, but what attracted Teramura’s attention most was the amplifier used by Kimura. This started the development of Model 4706 Gaincard. That same day, both agreed to have the partnership, and the wheels started rolling.

Company’s Products

 

47 Laboratory provides a wide range of products, including digital front ends, phono stages, various amplifiers, and DIY based cable kits. Among the common items being sold in the market are input selector, gaincard amplifier, 4733-midnight blue pre/headphone amplifier, 4736 integrated amplifiers, 4737 lens full-range speakers, 4734 stereo power amplifier, phono cube, midnight blue CD player, progression DAC, flatfish CD transport, Koma turntable, and pit racer CD transport.

One of their most popular products, the Gaincard, has a robust voltage regulation with 170 CA cut-core transformer. It also boasts nine parts per channel, 32m/m signal pass length, 9m/m NFB loop length, 1000µF filter/condenser, which is all the world’s best in terms of their category. This unit can be upgraded into a pair of complete mono amplifiers by integrating to Model 4700 Power Humpty.

The 4704 PiTracer CD Transport, which costs around $30,000, could be the most expensive of all. In terms of its sound, it portrays music with poise and intimacy. It excels at presenting music as a complete entity, and not just an amalgam of sonic qualities. The radical design of this product isolates the mechanism that spins the disc to extract musical information. It reads a CDs pits at a constant 90-degree angle to the disc. However, this uses a 47 Lab Power Humpty power supply.

Specialised Products

 

The 47 Laboratory System. The Gaincard amplifier is the heart of the system. It is a dual-mono in construction encased in a highly rigid aluminum chassis. This is only the size of two decks of cigarettes and looks indestructible.

The other one is the Chooser, which is a matching selector box. It is available to facilitate the use of two pairs of unbalanced outputs and four unbalanced inputs. The Chooser and Gaincard are meant to be stacked one above the other. However, if your system is dedicated to a digital source or single analog, then you don’t need a Chooser.

As part of the system, you will also use the OTA Kit, which includes the cables and interconnects. This consists of 12 pairs of machined, soft plastic RCA plugs, 2mm of plastic tubing for insulation, and 50 meters of 0.4mm solid core OFC copper wire.

For analog-based preference, you can also supply with diminutive Phonocube and Power Humpty. Though this looks a bit of luxury, it found out that extra connectors can lead to real dual-mono power. This is because the Phono Cube passes the pure beautiful and current right through the amplifier with zero ohms dependent frequency peaks and valleys.

47 Laboratory

47 Laboratory

47 Laboratory

47 Laboratory

Frequently Asked Questions

47 Laboratory

47 Laboratory

47 Laboratory

47 Laboratory

47 Laboratory

47 Laboratory

47 Laboratory

47 Laboratory

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