COS Engineering D10 User Manual

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COS D10

User's Manual

V1.00

June, 20, 2020

COS D10

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Summary of Contents for COS Engineering D10

Page 1 COS D10 User’s Manual V1.00 June, 20, 2020 COS D10...
Page 2 WELCOME Thank you for choosing D10. Please have a few minutes for this manual before powering D10 on. COS D10...
Page 3: Table Of Contents
CONTENTS Buffer selection Unpacking Selecting Input Source Placement Adjusting Volume Level Mains Connection Standby Mode Fuses Remote Control Digital Input Display Headphone Streaming Specifications Analog Input Phono-Amplifier Analog Output COS D10...
Page 4: Unpacking
You will find in the D10 box the following: A COS D10 a remote control this manual Please keep the D10 box. In an unlikely event that maintenance is needed, the box shall be used for protection of D10 in transit. COS D10...
Page 5: Placement
PLACEMENT D10 needs a solid and stable surface to stand firmly, and four boots should help keep it level. D10 does not need much air to stay operational, but suffocating it is certainly a bad idea. Where D10 is placed is not critical, but please keep it away from known magnetic fields.
Page 6: Mains Connection
Voltage Selection of the back panel, is the same as the AC outlet voltage of your area. This switch is right below the AC inlet and can be easily slid by a flat screw driver. Please ensure that it is slid all the way. COS D10...
Page 7: Fuses
These fuses are 5 X 20 mm in size and rated for 1A, 250V AC, slow blow. If replacement is needed, please use fuses with the right specification. spare lock operation COS D10...
Page 8: Digital Input
There are 5 or 6 digital input as follows. USB Audio (USB Type B connector) AES digital input (XLR connector, 110ohm) S/PDIF Input (BNC connector, 75ohm) Optical Input (Toslink) I2S Input (differential, HDMI connector) Streaming with streaming module (optional) Buffer Optical COS D10...
Page 9: I2S
These I2S signals are differential (LVDS compliant) and the pin assignments are as follows, 1. Data+ 3. Data- 4. BCLK+ 6. BCLK- 7. LRCLK+ 9. LRCLK- 10. MCLK+ 12. MCLK- 13~16. no connection 2, 5, 8, 11,17, 19. Ground 18. +5V COS D10...
Page 10: Streaming
LED on the right : Amber for 100 Mbps, off for 10Mbps. WiFi LED On, WiFi module connected Flashing (1 sec off – 1 sec on), AP mode USB connector for WiFi module WiFi LED BUTTON ETHERNET WiFi Module COS D10...
Page 11 STREAMING mconnect control is a free control app, available for iOS and Android, to Set up streaming module Access internet music (TIDAL, Qobuz and others) COS D10...
Page 12 STREAMING - Ethernet Connect the D10 with the access point by an Ethernet cable Connect your smart phone to the same network Run “mconnect control” to configure the streaming module WiFi LED BUTTON ETHERNET WiFi Module COS D10...
Page 13 Please follow the steps shown below. “Converse COS D10” is the third and the last step. If D10 fails to be on the list, please press the refresh icon. If it is of no avail, please check cable connections and try again.
Page 14 STREAMING - Ethernet Select D10 -> change LAN IP COS D10...
Page 15 The WiFi LED starts flashing for about 30 seconds. Then the streaming module functions as an access point, with a network name “CDMCM-210” Now turn to your smart phone, Go to the “WiFi” settings, select “CDMCM-210” Key in password “password” BUTTON COS D10...
Page 16 STREAMING – WiFi setup Run “Mconnect control” “Device setup” “WiFi Network Selection” Choose your own network Type in password The module now reboots and connects to your network. Go to “WiFi” settings on your smart phone and select your own network COS D10...
Page 17 STREAMING – ROON & MQA D10 is ROON Ready and no setup is needed. MQA decoding relies on the streaming module. COS D10...
Page 18 MQA (Master Quality Authenticated) D10 includes MQA technology, which enables you to play back MQA audio files and streams, delivering the sound of the original master recording. ‘MQA’ or ‘MQA.’ indicates that the product is decoding and playing an MQA stream or file, and denotes provenance to ensure that the sound is identical to that of the source material.
Page 19: Analog Input
Pin 1: Signal ground Pin 2: Signal + (non-inverting) Pin 3: Signal – (inverting) Connector ground lug: chassis ground Unbalanced Analog Input (RCA connector pair) Phono-cartridge input with Phono-amplifier module (optional) Analog Input Analog Output Analog Input Left Right COS D10...
Page 20: Phono-Amplifier
These capacitors are in parallel. For example, if 390 and 100 pF are enabled, the overall resistance will be 390 + 100 = 490pF There is also a grounding post for turntable grounding. Grounding Right Left Gain Loading COS D10...
Page 21: Analog Output
ANALOG OUTPUT D10 provides both balanced and unbalanced analog outputs, with an XLR male connector pair and an RCA connector pair, respectively. The pin assignments of XLR-type female input connectors are: Pin 1: Signal ground Pin 2: Signal + (non-inverting) Pin 3: Signal –...
Page 22: Buffer Selection
BUFFER SELECTION There is a buffer switch on the back panel of D10, and it should be turned on for optimum performance. Sometimes digital music data do not move along and get converted in perfect tandem, which causes jitters, and even a few micros- second timing error is enough to perturb the ears and frustrate the mind.
Page 23: Selecting Input Source
SELECTING INPUT SOURCE The default input source is USB 2.0, and the next input source can be selected by shortly pressing the knob. The order of the selection is USB , Streaming, AES and so on. press COS D10...
Page 24: Adjusting Volume Level
ADJUSTING VOLUME LEVEL Volume is changed by rotating the knob. Rotating the knob counterclockwise brings the volume up; clockwise, down. And it is shown on the display from -63.5dB to +6dB (loudest) with a 0.5dB interval. COS D10...
Page 25: Standby Mode
STANDBY key on the remote control puts D10 into standby mode. In this mode, the volume and output relays are turned off, and D10 goes into a state of low power consumption. Another long press on the knob or a press on the STANDBY key on the remote control makes D10 leave standby mode;...
Page 26: Remote Control
REMOTE CONTROL The D10 remote control is easy to use. Just aim the remote control at D10 and press buttons. When power is running low, please use a screwdriver to open the cover at the back of remote control to replace batteries,...
Page 27: Display
DISPLAY A 256 by 64 pixels white OLED display is used to show the current status. Buffer Selection Input source Digital input data rate and number of bits Receiving music data Volume COS D10...
Page 28: Headphone
HEADPHONE D10 uses a particular set of headphone connectors – a 3-pin female XLR + ¼” stereo jack combo. The center is for ¼” stereo jack. There are two of them; therefore D10 provides connections up to 2 unbalanced headphones. The female XLRs are for one balanced headphone: the one on the left is for the left channel and the other for the right channel.
Page 29: Specifications
> 110dB/20Hz~20KHz non-weighted Crosstalk < -120dB Volume precision resistor array, 140 steps by 0.5dB/step, -64db to +6dB audio jack X 2 (unbalanced X 2) Headphone Amplifier XLR-3 X 2 (balanced X 1) XLR-4 X 1 (balanced X 1) COS D10...
Page 30 Input Capacitance 0 to 750pF RIAA response <+-0.2dB/20Hz~20KHz <30uV (input shorted, 40dB gain, 20Hz~20KHz) Residual Noise <300uV (input shorted, 60dB gain, 20Hz~20KHz) < -90dB (40dB gain,470ohm load, 1KHz, 2Vrms output) THD+N < -70dB (60dB gain,470ohm load, 1KHz, 2Vrms output) COS D10...
Page 31 < 0.001% (-100dB) (192Ksps, 24-bit, 20Hz~20KHz, A- THD+N weighted) Signal To Noise ratio > 110dB, 24-bit, 20Hz~20KHz, A-weighted 24-bit DAC X 2, up to 192Ksps, 24-bit Digital Filter COS proprietary, Linear phase delay Audio clock jitter < 1ps COS D10...
Page 32 SPECIFICATIONS - STREAMING DLNA 1.5 & UPnP AV1.0 Ethernet 10/100 Base-T WiFi, 802.11 ac/abgn ROON ready TiDAL, Deezer, Qobuz, Spotify MQA full decoding COS D10...
Page 33 SPECIFICATIONS - GENERAL Display 256 * 64 White OLED Weight 10kg Dimension 415mm (W) X 280mm (D) X 100mm (H) 100~120VAC or 200~240VAC selectable Power Normal Operation < 50W, standby < 0.5W COS D10...