Limited reproduction

YC-03S Low impedance MC cartridge

When it combines with head shell HSA-02(one of these days sale) with built-in head amplifier.

　 YC-03S is low impedance type MC cartridge which adopted the Africa ebony as the body. Now, acquisition is the cartridge which adopted the Africa ebony material which became difficult as the case. The Africa ebony material called it Alias Granadyra, and has been found useful with sound being beautiful as a material for musical instruments for many years. By the precision woodwork processing technology which makes this elated [ us ], I began to shave the body for MC cartridges, and produced it commercially. The Africa ebony is the beautiful black wood of the sound used for oboe or a clarinet. Specific gravity has a value also in wood with nearest about 1.4 and its intensity. Although the Africa ebony is hard, it is wood, and inside the material, it has a lead pipe, and has a moderate internal loss. Therefore, it is hard to come out of a sharp resonance sound like metal, and it is thought that it catches while distributing moderately vibration produced into the needle point portion of a cartridge.
Actually, the maker who has adopted wooden bodies exists in MC cartridge of a high-end class partly.
They can say that the merit of an original sound which wood has is proved. Finish of the cartridge body valued the textures of wood, and has painted and finished the eco-paint which does not have influence in a human body.
　Moreover, a feeling of unification is given using the same Africa ebony also as a needle cover. The power generation system of YC-03S has adopted the alt. phone type with which the performance stabilized most is obtained. However, the quite big value of 0.2mV has been acquired by the internal impedance 1.0 ohm by winding a very thick wire rod around the power generation coil most efficiently to an iron core. In the case of the same output voltage, it will be said that the energy as an absolute value whose value of the I hear that that impedance is low has the large electric power generated, and is bigger is obtained.
　The micro ridge stylus was used for the needle point, having adopted tough beryllium as the caitilever of this machine, and having carried out, and the highest sound quality is aimed at.
Another feature of YC-03S is having adopted very thick piano wire as the tension wire inside a cartridge. A tension wire is a component for support located at the center of an oscillating system which combines the caitilever of MC cartridge, a power generation coil, and a magnetic circuit.
Although this tension wire seldom attracts attention as a selling point of a cartridge, it is the component concerned with sound most greatly in an oscillating system. At us, it traced that the strength and forcibleness of the waist on the sound quality of a cartridge were decided by the diameter of a line and material of this wire, and the audition determined the optimal thickness. The value considered for us of the value to be the optimal to the general cartridge having adopted the piano wire of 0.06mmphi to 0.08mmphi was 0.12mm. The cross-section area increases to what also about 2.5 times. Usually, this tension wire is a portion which responds to vibration of the needle point, the more it makes it thin, it becomes high compliance and, the more upper register is extended, but it becomes the tendency for a feeling of energy to become weak. Our design aimed at the sound which dares to adopt a thicker tension wire and has a feeling of actual existence in order to obtain the reproduction sound which was completely full of the opposite feeling of energy with the strong firm waist of it.
Moreover, although the leader line from the coil of this YC-03S wires to a terminal the winding which usually came out of the coil as it is, as for this line, the line thinner than the hair of hair for whether your being Haruka is used. Therefore, sound was influenced greatly with a length of about only 20mm. In YC-03S, 6N copper wire of the diameter of 0.6mm is used here, and it is wiring to the nearness of a coil.
　If it is that the thin winding which came out of the original coil is as about 0.06mm, the cross-section area of 6N 0.6mm copper corresponds 100 times. In public, if a shell lead about 3cm in length is exchanged and sound will change, it has become the center of attention.
It seems that a wire with a length in a cartridge of about 20mm influences sound the dozens of times.
Please confirm an actual difference with your ear.
　The spacer made from super duralumin is attached to the lower part of the body of YC-03S cartridge. Metal portions, such as an internal magnetic circuit, indirect high it is designing so that it may be reinforced on the plate of intensity super duralumin. This is the forcible tightened sound.
When it mounts to head shell, in order that the plate made from this super duralumin may contact shell directly, it serves to reinforce an attachment part.　

　The spacer made from super duralumin　　　Internal wiring and structure　　　　　　

YC-03 Specifications
Form: Low impedance MC cartridge
Output voltage: 0.2mV (1kHz, 5cm/sec . )
channel separation : 25dB or more (1kHz)
channel balance: -- 1dB or less (1kHz)
caitilever: -- 0.35mm solid beryllium
stylus chip: -- micro ridge stylus
impedance: -- 1.0-ohm
compliance: -- 7x10 cm/dyn
Proper needle pressure: 1.5-2.0g
frequency characteristic: -- 20-20,000Hz
body: -- the African Black wood material (eco-paint finish)
Outside dimension: 18 (W) 30 (L) 15 (H)
Prudence: 9.3g (in the case only of a main part)
Accessories: The product gilding attachment bolt made from bronze, nuts