Description
AK4497EQ DAC Single-chip Decoder Board Optical Fiber Coaxial USB with 32BIT XMOS U8 High-end Decoder USB Card
Product Description
AK4118 is the latest coaxial fiber data demodulation chip launched by AKM. This chip has appeared in 10,000 yuan decoders abroad, and the price and effect of the chip are far beyond DIR9001CS8416 WM8805 and other chips. The greatest sense of hearing is clean, natural, and delicate. AK4495S is the fourth-generation AKM decoder chip and the world's first decoder chip that supports 32BIT 768K, which surpasses the AKM43XX series in technology. The analog part of the chip adopts independent power supply for the left and right channels and the reference voltage, which effectively reduces crosstalk. AK4497 uses AKM’s newly developed OSR Doubler filter THD+N: -115dB, DR, S/N: 127dB (130dB in parallel), PCM sampling rate up to 769K, DSD sampling rate up to 22.4MHz, AKM’s latest OSR The Doubler filter greatly reduces the impact of noise shaping and achieves a very low distortion music playback experience. At the same time, Audio 4 Pro (TM) series chips have excellent sound performance, which is also an important reason for us to choose this chip!
Feature
Use original AK4497EQ (not included) + AK4118 (send NE5532 and NE5534 for testing) The electrolytic capacitor signal main circuit adopts famous brands such as Philips, ELNA, Panasonic, and the main filter capacitor adopts the NOVER audio special capacitor capacity of 5×6800UF, and adopts a full-wave bridge rectifier circuit to ensure strong and continuous power support. The resistance uses five-ring metal resistors, and the main circuit uses five-ring metal film resistors with an accuracy of ±1% to ensure a good signal-to-noise ratio of the whole machine. PCB adopts 1.6mm thick double-sided board, 2.0 oz copper thickness, and full tinning process to ensure good passing performance of large and small currents. First-class PCB quality. The power supply part of AK4188 adopts the most stable voltage regulator chip LT1963EQ-3.3 optical fiber, coaxial, and USB input signal through the encoder switch. The PCM format supports up to 384K, and the company's U8 daughter card will support DSD64 and 128. Because of AK4118, the sample rate is not displayed when playing files above 192K Imported gold-plated luxury RCA seat Fully balanced dual op amp design, with balanced XLR output, RCA single-ended output Direct display of sampling frequency, intuitive and convenient Support DOP DSD The remote control supports input switching and volume adjustment functions (volume adjustment is not displayed) AK4497 uses the latest OSR Doubler filter developed by AKM, which can obtain better dynamic range. THD+N: -115dBDR, S/N: 127dB (parallel, 130dB) PCM sampling rate supports up to 769K, DSD sampling rate up to 22.4MHz
Specification
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item
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value
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Power
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1. Two groups of AC 9V (each group above 10W)
2.1 groups of AC dual 12V or dual 15V (above 15W)
The above power supplies need to be connected at the same time
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Motherboard size
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193*183MM
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CPU board size
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102*38MM
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Weight
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0.4 kg
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Details Images