Quloos QA890 Manual 

『Front Panel』 No. Function No. Function A Input channel option / Remote control ON / OFF D Volume Up B Infra-red remote control receiving window E Volume Down C OLED Screen F Mode Option 『Rear Panel』 all-guides com

No. Function No. Function A Coaxial input 1 F Power ON / OFF B Coaxial input 2 G Right channel balance output C Optical input H Left channel balance output D USB input（Optional） I Right channel RCA output E AC 110V / 220V Input J Left channel RCA output 『Remote Control』 No. Function A Input channel option B Mode option C OLED Brightness / OFF-Screen Option D Mute / De-Mute E Volume Up F Volume Down

Note: The remote control is optional with the default setting shut OFF. It can be turned on by long pressing the "S" key on the panel and vice versa. When it shows "IR REMOTE ON", it means the remote control is on. When it shows "IR REMOTE OFF", it means the opposite. 『Power Voltage』 Input AC 100～120V or AC 200～240V. In order to prevent mal-operation which may ruin the player, 110V / 220V on-off switch is placed inside. If you need to change the voltage, please open the cover and set the switch to the preferred voltage on the power panel. Note: There is high voltage on the power panel, please handle it while power is off. Fuse size: 5 × 20mm; T1A / 250V. 『Audio source requirement』 Automatically recognize the input of PCM audio source with the sampling 16 and 24Bit. Automatically recognize the usual stereo digital audio source input between the sampling rate of 32K-192K. OLED screen shows the corresponding sampling rate. If no sampling rate recognized, it shows "NO RATE". If DSD64（Dop）input, OLED screen shows "DSD". If no audio source input recognized, OLED screen shows "NO SIGNAL". 『Input interface』 1. COAX 1 coaxial input 1（Impedance automatic matching circuit）. 2. COAX 2 coaxial input 2. 3. OPT optical input. 4. USB input（Optional）. 『Input option』 Input channel includes Coaxial input 1（COAX1）, Coaxial input２（COAX2）, Optical（ OPT） and USB. Gently press the "S" key on the front panel or on the remote control to select the input channel cyclically.

After the channel is picked, OLED screen will show the corresponding channel, and the setting will be saved automatically after 5 sec. 『Mode option』 Under PCM audio source input, there are 6 optional modes. Mode 1-5 is PCM digital filter mode. Mode 6 is all PCM signal convert DSD signal. MODE1: SLOW MODE2: SHORT DELAY SHARP MODE3: SHARP MODE4: SUPER SLOW MODE5: SHORT DELAY SLOW MODE6: ALL TO DSD Gently press the "M" key on the front panel or on the remote control to cyclically choose the mode you prefer. Meanwhile, OLED screen shows the corresponding mode, and the setting will be save within 5 sec. 『Volume adjustment / Preamplification』 Press the + / - key on the front panel or on the remote control to adjust the volume. Brief press is for minor adjustment, long press for continuous major adjustment. The volume range is 0-100,and the setting will be saved after 5 sec. Note: The preamp will be automatically shut down and the direct mode will be entered if the volume reached the max. 『Mute』 The Mute key on the remote control can mute and de-mute the player. When it is muted, you can press the + / - volume key to cancel. The mute setting is not saved once forever. If reboot, you need to reset. 『Brightness adjustment』 The brightness adjustment key on the remote control can realize 3 kinds of brightness and off-screen function. These four options can be shifted cyclically, and the brightness will be

automatically saved after 5 sec of setting. 『USB Interface』 Support sampling bits 16Bit / 24Bit,sampling rate 44.1k-192kHz and DSD64（Dop）. Compatible with Mac OS and Linux systems（no need to install driver）. Compatible with systems from WIN XP to WIN10 32 / 64 bit, manual driver installment is necessary for initial connection with PC. Driver download address is below : http://www.qlshifi.com/zlxz.htm. 『Usual Fault Diagnosis and Solution』 1.No display or output after startup The fuse of power input may be burnt. Solution: remove and check the fuse. 2.Display but no output after startup Several possibilities: ◆ The input channel or the current active channel may be false. Try other channels to test. ◆ The input signal is incompatible, e.g. DTS file. ◆ The front-end device is set up wrong. For example, as an audio source, QA360 blocks off the digital output function. 3. Output ready but no display Please check if it is in the off-screen mode by pressing the remote control. 4. Normal host, abnormal remote control The remote control may be short of power, please change a new battery and try again. Please contact us if the faults above remain or any other problems pop out.

『Appendix I Product Warranty Card』 Please fill this form and send it back to us along with the product needs service. Product QA890 Hi-Fi Audio DAC S/N Date User Name Zip Code Mobile Tel Address Customer Feedback Cause Analysis and Solution （This part is filled by the manufacturer） Remarks Company: ShenZhen QLS Electronic Technology Co.,Ltd （Quloos） E-mail: [email protected] Web: http://www.qlshifi.com all-guides com