Ðề: Bàn luận về DAC
có cổng coaxial hay optical in bác ạ. amply 2 kênh có cổng usb chưa thấy, hay bác nào cập nhật hộ em cái
Cái này bác ơi:
ROTEL INTEGRATED AMPLIFIER RA-1570
Thông tin sản phẩm
The RA-1570 combines proven analog design with sophisticated digital circuits to bring all of your sources to life with amazing fidelity. The integrated amplifier features a front panel USB input, making it easy to connect a wide variety of music storage devices including iPods®, iPhones®, and iPads® directly, or via the supplied Bluetooth dongle. Rotel has not forgotten analog fans of vinyl either by including a high performance moving magnet phono input. Meanwhile a highly regulated power supply with custom-designed toroidal transformer provides high current capability to a Class AB output stage. The amplifier design uses multiple discrete output devices to ensure precise reproduction of all signals with virtually any loudspeaker.
Continuous power output: 120 Watts/channel (20hz – 20khz, < 0.03% Thd, 8 ohms)
Total harmonic distortion: < 0.03% at rated power (20Hz-20khz)
Frequency response: 10Hz-100kHz (+1, –3 dB)
Damping factor: 180 (20Hz-20khz, 8 ohms)
Input sensitivity: 2.25mV
Impedance: 68k ohms
Preamplifier output: 1.5V / impedance 470 ohms
Signal to noise ratio: 80 dB
Preout level/impedance: 1.2 V/ 470 ohms (at -20 dB)
USB/iPod: WAV, MP3, WMA (up to 48kHz 16 bit)
Coaxial/optical: SPDIF LPCM (up to 192kHz 24 bit)
PC-USB: USB Audio Class 1.0 (up to 24 bit/96kHz)
USB Audio Class 2.0 (up to 24 bit/192kHz)
Power requirements: 230 volts, 50Hz
Power consumption: 400 watts
Power consumption: < 0.5 watts Standby
Dimensions (W x H x D): 431 x 144 x 350 mm
Weight: 13 kg
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