★ This is an improved model that disregards the cost of the mass-produced machine and uses expensive parts extensively to achieve even higher sound quality and reduce the failure rate. It has been maintained for those who are looking for higher quality items. ◆ Our built-in BT can be used easily and freely without any restrictions on the main unit's functions. Furthermore, the problem of BT sound being quiet, which always occurs with aftermarket and third-party products, has also been resolved. ■ Maintenance Details ・ Electrolytic capacitors in the audio signal circuit have been replaced with Rubicon film capacitors and Elna SILMIC II, which are more suitable for audio. ・ The main capacitor in the power supply circuit has been replaced with Nichicon KW. ・ Electrolytic capacitors in the heat-generating parts of the control board have been replaced with Murata Manufacturing MLCC & Kyocera tantalum capacitors, which have a longer lifespan, lower internal resistance, and less loss. ・ Electrolytic capacitors in the control board signal circuit have been replaced with Elna SILMIC II. ・ All of these are replaced with parts that are many times more expensive than the original ones. ・ Before replacing the parts, the ESL and ESR of all capacitors were also measured, and selected products were used. ■ Effects A listening test was conducted with the original machine. The sound quality in all ranges has "significantly improved" to a level that can be clearly felt. ・ The low frequencies have become thicker, resulting in a more groovy sound. ・ The mid frequencies have increased in the rise and sharpness of subtle tones. ・ The high frequencies have a transparent and uncolored finish without piercing. Overall, the sound has become smoother while still having a sharp and punchy sound. ■ The following work has been completed ・ Replacement of all electrolytic capacitors ・ Built-in Bluetooth & addition of sound pressure level adjustment circuit ・ System update (Wide FM compatible) ・ Cleaning & greasing of the entire CD unit. Pickup & rubber belt replacement. Waveform inspection, calibration ・ All motor operation check (tracking motor replacement) ・ Spindle motor internal cleaning, lubrication ・ Cleaning and conductivity improvement treatment of all terminals and connector contacts ・ Power IC grease removal, thermal pad conversion & re-soldering ・ Exterior repair painting ・ GND insulation circuit added ・ Many others ■ Appearance ・ There is no peeling of the coating, and it is a beautiful item, but please be aware of slight scratches. ■ Shipping Contents ・ Main unit ・ Main unit & BT instruction manual (printed) ・ Acrylic stand black ・ Compatible power cord ・ New compatible remote control * Opened ・ Removed parts ■ Warranty Complete free support for any problems that occur within one month of arrival. 【4590】