HA200 DSD decoding amp 768K portable Sound Card Manual

HA200 is a high-fidelity USB decoding headphone amplifier. Its hardware consists of an audio bridge controller CT7601 supporting high-standard audio formats and a high-performance audio digital-to-analog converter CS43131. Equipped with function buttons, RGB indicator lights, a 3.5mm stereo headphone output interface, ultra-miniature design, PCB size is only 30mmx10mm, it is a USB Type-c headphone amplifier with top performance.

Main features:

2.0 high speed compatible

Support UAC2.0 and UAC1.0 (set mode by button)

Supports PCM and DSD audio hard decoding via USB

Support PCM specification

UAC2.0 mode: 16/24/32bit, 44.1/48/88.2/96/176.4/192/352.8/384/705.6/768KHz

UAC1.0 mode: 16bit, 44.1/48KHz

Support DSD specifications: 1x (DSD64)/2x (DSD128)/4x (DSD256)

Supported modes for DSD audio transmission via USB: DoP (DSD 1x/2x/4x), Native (DSD 1x/2x/4x)

Frequency response range @90KHz bandwidth (-0.5dB): 20Hz～80KHz

Frequency response flatness (20Hz～20KHz): +0.05, -0.05dB

Noise level: <1uV

Signal-to-noise ratio: 125dB

Dynamic range: 125dB

Maximum output power @RL=16Ω, THD+N≤1%, each channel: 60mW

Support Windows7/8/10/11【1】, Mac OS, Android【2】, iOS【3】

With a proprietary ASIO driver (only for UAC2.0), it supports ultra-low-latency ASIO playback and game modes.

【1】Windows 7/8 must install the proprietary ASIO driver, while Windows 10/11 can use the UAC driver that comes with the system, or install the proprietary ASIO driver.

Windows driver download address: https://www.aoyint.com/software/HA200_drive.zip

【2】The Android device needs to support OTG and UAC2.0.

【3】Apple Lightning to USB adapter is required for connection. Since the Apple mobile phone has a current limiting mechanism, when the USB output current approaches or exceeds the limit point, it will limit the current, pop up a window or disconnect the device. HA200 has a large output power characteristic. Under the condition of high volume during use, it may cause the current limit of the Apple mobile phone, resulting in intermittent sound or automatic disconnection. The volume can be adjusted appropriately for use.

RGB indicator definition：

Condition			LED display
UAC mode	Audio stream format	Sampling rate	Red light	Green light	Blue light	Mixed color
UAC2.0	PCM	44.1k、48K	Steady on	—	—	红
		88.2k、96k	—	slow flash	—	Green-slow flash
		176.4k、192k	—	Steady on	—	Green
		352.8k、384k	—	—	slow flash	Bule-slow flash
		705.6k、768k	—	—	Steady on	Bule
	DSD	1x	Steady on	Steady on	—	Yellow
		2x	—	Steady on	Steady on	Cyan
		4x	Steady on	—	Steady on	Purple
		8x	Steady on	Steady on	Steady on	White
UAC1.0	—	—	slow flash	—	—	Red-slow flash

Description of function keys:

◆Short press to switch digital filter mode.

◆Long press to switch the output level mode.

◆Press and hold and then turn on the device, the device works in UAC1.0 mode.

Digital filter mode description:

◆The device has 5 optional PCM filter modes.

Filter mode configuration table:

Filter Mode Filter Name

Mode 1 (power-on default) Fast roll-off, Low-latency filter

Mode 2 Fast roll-off, Phase-compensated filter

Mode 3 Slow roll-off, Low-latency filter

Mode 4 Slow roll-off, Phase-compensated filter

Mode 5 Non over-sampling filter

◆When the device is working, short press the button to switch the filter mode in a cycle.

◆When the operation of switching the filter mode is performed, the LED will indicate the corresponding state:

LED real-time indication of the mode switched to

Mode 1 ~ Mode 4 White light flashes once

Mode 5 white light flashes 2 times

Output level mode description:

◆The device has 3 output modes.

Output mode 0dB output level (RMS)

Mode 1 0.5V

Mode 2 (power-on default) 1V

Mode 3 2V

◆When the device is working, long press the button for 1 second to switch the output mode.

◆When the operation of switching the output level mode is performed, the LED will indicate the corresponding state:

LED real-time indication of the mode switched to

Mode 1 The purple light flashes once

Mode 2 Purple light flashes 2 times

Mode 3 Purple light flashes 3 times

Instructions for setting UAC1.0 mode:

◆Under normal conditions, the device will work in UAC2.0 mode by default after power-on. You can manually set the device to work in UAC1.0 mode after power-on.

◆When the device is working, the UAC mode cannot be switched.

◆How to make the device work in UAC1.0 mode: On the premise that the device is disconnected (power off), first press the button and hold it, and then connect the device to the host (computer, mobile phone, game console) ) USB interface (power on), you can release the button after the red indicator light flashes, and the device will work in UAC1.0 mode.