Yamamoto Sound Craft HSA-01 Head shell with built-in head amplifier
Product code:Yamamoto Sound Craft HSA-01 Head shell with built-in head amplifier
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Analog MC head amplifier with built-in headshell
The idea of “shortest path amplification” that amplifies immediately after the cartridge
Shortest path design for amplification immediately after the MC cartridge - To protect the amount of information when playing records
HSA-01 is a special MC headshell with a built-in head amplifier inside the headshell to prevent "weak signal loss", which is the biggest weakness in analog record playback. The minute signal of around 0.2mV generated by the MC cartridge loses a lot of information while passing through the thin lead wire inside the tonearm. By amplifying immediately after the cartridge, HSA-01 fundamentally improves this loss and greatly improves the quality of the signal reaching the phono equalizer.
High-purity sound produced by high-quality analog circuits and gold-plated substrates
A small analog amplifier with a 14x amplification factor is built into the headshell, and a large output of approximately 0.9V is extracted from a power supply of only 3V. All internal circuits are made up of high-quality components selected through listening tests, and the circuit board and battery holder are treated with a unique gold plating process. The design philosophy that does not lose the purity of sound is to make the most of the appeal of analog playback.Yamamoto Sound CraftThis is our commitment.
Resolution and atmosphere brought about by wideband characteristics from 10Hz to 100kHz
The head amplifier of the HSA-01 has wideband characteristics that suppresses frequencies from 10Hz to 100kHz to within +0, -1dB, and faithfully reproduces the extension of the high range, the sinking of the low range, and the beauty of overtones. This band is an area that cannot be obtained with MC step-up transformers, and allows you to extract the vast amount of information contained in analog records. Even if you're used to listening to a record, it can feel as fresh as if it were a different master sound source.
African ebony body and easy-to-handle 12.5g design
The main body is precisely machined from dense African ebony using an NC processing machine, and has a strong and vibration-resistant structure while weighing only 12.5g. It is compatible with many tonearms and is designed with excellent balance in terms of sound quality. A power switch and LED display are placed on the top of the shell for both convenience and visibility.
High compatibility and easy setup with direct connection to MM input
The 0.2mV MC cartridge is amplified to approximately 2.8mV by HSA-01 and can be directly connected to a general MM phono input (47kΩ). It is very easy to set up and is ready for use as soon as you install the cartridge, attach it to the arm, adjust the stylus pressure, and turn on the power switch. The battery uses CR1632 and ensures continuous operation of about 60 hours.
Headshell that brings out the true power of analog records
HSA-01 was designed to maximize the performance of MC cartridges and fully reproduce the minute information engraved on analog records.Yamamoto Sound CraftThis is a special head shell. A must-have for any music lover who wants to take their record playback to the next level.
When using HSA-01, simply turn off the power switch on the top of the shell and turn it on after replacing the cartridge and shell as usual. When installing the headshell and turning on the power switch, set the preamplifier volume to the minimum setting. The weight is 12.5g, which is the standard weight for a head shell, so it can be used with most arms.
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0.9V |
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One CR1632 type, lithium ion, coin-type battery (3V) is included (products shipped overseas are not included due to export restrictions.) |
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| own weight | 12.5g (including lead wire, excluding mounting screws) |
Instead of passing the low-output MC cartridge's music signal through long cables and contacts and causing the sound to deteriorate, if you boost the music signal immediately after the cartridge picks up the signal from the disc surface, you should be able to get a purer sound! Therefore, the new product HSA-01 incorporates an MC head amplifier into the head shell. The company's most popular ebonyIt feels like a head amp is built into the headshell HS-1A, and the more I look at it, the more impressed I am with how well it was made.Thankfully, the coin-type battery can be easily installed and removed using a precision screwdriver. The weight of the entire head shell including the cartridge is affected by the weight of the cartridge, but it would be easier to balance it if there was a sub-weight. By the way, the turntable DENON DP-70M used this time could not achieve zero balance when the 11g cartridge was installed, so a sub-weight was used.
It can be said that the freshness of the sound is extremely high.The MC cartridge this time is Jasmine Audio's middle-class Forest (0.34mV), which not only demonstrates the performance of the cartridge, but also has a more direct feel, higher resolution, and a very clear sound. The realism and atmosphere of live sound sources such as instruments and performers' murmurs are clearly conveyed.
Thin lines and various points of contactRather than amplifying the weak sound signal that has finally arrived through theweak sound signalAmplification allows you to obtain fresher, higher quality sound without being affected by external influences. Moreover, since the amplified signal is delivered, there is a considerable amount of gain margin on the MM phono equalizer side, so it is a product with excellent cost performance.
