Radius RK-DA50C Portable headphone amplifier USB Type-C Android 24bit / 192kHz High resolution compatible ultra-compact DAC amplifier 3.5mm jack Type-A conversion included RK-DA50CK

Pursuing sound quality and portability Sound quality and compactness are required for portable headphone amplifiers. This product is very good at both. In addition, you can use the operation functions of the connected remote control and earphone with microphone as they are, and you can talk on the phone. Demonstrates overwhelming performance in a portable environment.Equipped with a high-quality chip manufactured by Qualcomm Equipped with a "Qualcomm Aqstic DAC", it has excellent wide dynamic range, low distortion, and high frequency response characteristics while suppressing current consumption to the utmost limit. In addition, since signal processing from USB input to headphone output is performed by the chip alone, efficient board design is possible and the size of the housing has been reduced.Phase-locked loop that realizes high-precision D / A conversion When converting the digital signal of the sound source to an analog signal, two types of master clock signals of 9.6MHz and 11.2896MHz are sent from an external crystal oscillator of 38.4MHz. Generated with a time error of ± 0.00001. By switching the master clock signal between the 48kHz sound source and the 44.1kHz sound source and suppressing the fluctuation of the internally generated sound as much as possible, high-precision D / A conversion has been realized.H-class headphone amplifier with high power saving and high sound reproducibility The H-class headphone amplifier provided in this chip reduces the power supply voltage when the signal level is low to suppress the power supplied to the earphone, and when the signal level is high, the power supply voltage. Raise to supply more power. Since it operates efficiently according to the magnitude of the signal level, it can be expected to reduce the current consumption of the connected device. In addition, the DC component from the signal is eliminated by generating a negative power supply voltage internally. It eliminates the need for a large-capacity capacitor between the amplifier output and earphones, which adversely affects the bass range, and demonstrates excellent music reproducibility.Twist cable of high-purity single crystal copper and silver-plated single crystal copper Single crystal copper is conductive by eliminating grain boundaries (gap between crystals) in the signal transmission direction by a special casting method and reducing the mixing of impurities. It is an extremely pure conductor with excellent properties. Silver-plated monocrystalline copper enhances the appearance and prevents heat-induced deterioration of the conductor during the insulation process. Achieves higher S / N without compromising the superior electrical properties and flexibility of monocrystalline copper.