L.NAP200DAC DSD decoding headphone amplifier combine machine AKM4490 Decoding chip AD828+AD847 OPA
parameter
Decoding section
Input interface: UB square port
Input format: PCM44.1-192K
DSD4、DSD128、DSD256
Line output and input interface: RCA lotus stereo socket
THD+N:-107dB S/N:112dB
Power amplifier section:
Rated output: 58W+58W (8 ohms, THD<0.1)
95W+95W (4 ohms, THD<1%)
Harmonic distortion: 0.01% (8 ohms, 1KHz, 10W)
Ear amplifier part:
Earphone impedance: 8-600 ohms
Distortion:<01% @ 1kHz Vppm=20v (30% power output)
Output noise level 91dB
Output impedance: 3 ohms (high power port); 68 ohms (standard power port)
Rated output power: 13W/320; 24W/300n; 1.2W/6000。
Comprehensive parameters:
Power consumption: standby less than 20W, maximum power output less than 250W.
Input sensitivity: 100mv/20K
Signal to noise ratio:>05dB
Voltage gain: 35 times
Random accessories: power cord, Italian compatible sub clip card designed with Weisheng 7601 solution, USB cable
Volume and weight: width 320, height 70, depth 248 mm
weight6kg
Overview of design advantages
1、 Adopting AKM4490 fever decoding chip and utilizing MCU X24-192K PCMRDSD dynamic optimization.
2、 Compatible with Italian digital interface and supports PCMEASIO, WasAPI code, and DSD line output.
3、 IV/LPF uses AD828+AD847 fever operational amplifier.
4、 The transformer outputs three independent power supplies, which are strictly independent of the digital, DAC analog, and low-pass parts.
5、 The core components of AKM4490 have been extensively optimized in terms of power supply, software, low-pass filtering, and wiring.
6、 Utilize AKM4490 bus transmission to hard decode DSD frequency.
7、 Referring to the famous British amplifier circuit design, the amplifier achieves dual channel 2 * 100W output and ultra high power headphone output.
8、 Equipped with speaker and headphone protection functions
