Post by NPAudio on May 10, 2021 22:18:17 GMT
*Newly designed A3, based on the newly optimized Android 9 system, running fast and smoothly, canceling the traditional
Body DAC button, integrated into the system, supports 3.5L0+4.4L0 dual LO output, using E
SS 9038PRO + 6 0PA1612 + dual custom op amps + separate pair tube architecture design, return
Traditional analog volume, power saving, no digital interference crosstalk noise, and adopts TPS7A8XX
X-series premium LDO power supply, the sound is quieter than A1S/A2, the background is darker, and the thrust is increased
15%, the body is 3mm thinner, and the grip is more comfortable, but because the body is thinner, 9038pro Very high power consumption (full firepower), analog potentiometer, 5000mah battery
The play time is 4.5 hours (close the display screen)
*Compared with A1S/A2, it completely solves the problem of streaming media disconnection DAC, and cancels the double of A2
Port charging design avoids the confusion of power display. The USB DAC is also newly designed with a new architecture.
Control, and the USB DAC port is no longer charging, that is, it is used as a USB DAC
It will not draw battery power when in use.
Support Android system firmware upgrade, support digital DSP firmware upgrade!
Detailed parameters All the data below are from the Audio Lab. CPU RAM MTK 64-bit quad-core processor 3GB ROM system 32GB maximum support 1TB TF card expansion Android 9.0 screen WiFi / Bluetooth 5 inches (1280x720 IPS multi-touch) 2.4G / 5G dual-band WiFi, Bluetooth 4.0 DAC USB processor ESS9038PRO SA9227 MCU volume STM8S series ALPS analog four-channel potentiometer LPF AMP OPA1612X2 custom-level dual op amp x2 + audio pair tube x8 IV conversion coupling capacitor OPA1612X4 Murata ceramic capacitor gain DAC filter 2 gain adjustment 7 kinds of filter output interface 3.5 coaxial, 3.5 LO, 3.5P0, 4.4LO/PO signal-to-noise ratio single port 118dB, balanced port 122 dB, no-load 1KHZ thrust THD + N single port 320 effective thrust 450mw, Balance port effective 1350mw single port 0.0005%, balance port 0.0004% 1KHZ (no load) output impedance support bit rate single port 20, balanced port 10 32bit / 384KHZ & DSD256 weight body size 270g 127x79x17.5mm battery life 4000mAh lithium ion battery 4.5 hours ( Turn off the display balance port 40% volume) product and accessories host / USB data cable / pair recording line / coaxial output line / tempered film / user manual / warranty card / certificate of conformity
