Denafrips Arce User manual

V1.0

12th Sept 2023

ARCE STREAMER

OWNER’S MANUAL

Contents'

1. INSTALLATION & SAFETY INSTRUCTIONS ......................................................................... 2

2. INTRODUCTION ................................................................................................................ 3

3. DESIGN HIGHLIGHTS ........................................................................................................ 4

3.1 ADAPTIVE FIFO BUFFER RECLOCKING ...................................................................... 4

3.2 PROPRIETARY STREAMER MODULE ......................................................................... 4

3.3 STREAMER ARCHITECTURE ...................................................................................... 5

4. OPERATING INSTRUCTION ............................................................................................... 6

4.1 Quick Start Guide ..................................................................................................... 6

5. SPECIFICATIONS ............................................................................................................. 11

6. WARRANTY ..................................................................................................................... 12

1. INSTALLATION'&'SAFETY'INSTRUCTIONS'

This STREAMER is designed and built to provide trouble-free performance, but as with all

electronic devices it is necessary to observe a few precautions:

• Unpack the STREAMER carefully.

• Position the STREAMER on a stable, horizontal surface, i.e. sturdy rack.

• The STREAMER supports voltage 100-250VAC worldwide voltage by a voltage

selector. The voltage selector can be found at the bottom of the STREAMER. Switch

it to the correct voltage prior to powering it up, i.e. 115V for the US / 230V for the

EU.

• Please connect the AC power cord with earth(ground) pin unless it is absolutely

required to reduce hum from the ground loops of the connected devices.

• Always ensure that when disconnecting and reconnecting your audio equipment the

mains supply is turned off.

• Position the power cord and signal interconnects where they are not likely cause trip

and fall hazard.

• Do not use the STREAMER near water, or place water-filled containers on the

STREAMER. Entry of liquid into the STREAMER is hazardous and may cause electric

shock and/or fire hazard.

• Do not place the unit under direct sunlight or heat source.

• Do not remove any covers or try to gain access to the inside. There are no user

adjustments or fuses to change without qualification.

• Clean regularly with a damp soft cloth. Do not use any cleaning agents as it might

damage the surface finishing.

• The electronics in modern hi-fi equipment is complex and may, therefore, be

adversely affected or damaged by lightning. For protection of the audio system

during electrical storms, disconnect the mains plugs.

2. INTRODUCTION'

Thank you for purchasing the DENAFRIPS ARCE STREAMER.

"ARCE, the inaugural streamer of DENAFRIPS, designed with a primary focus on delivering

an exceptional sound quality experience."

As a tribute to DENAFRIPS' 12 years of unparalleled digital audio expertise, the ARCE

streamer has been crafted to prioritize sound quality above all else. This remarkable device

supports roon Bridge (roon Ready pending), HQPlayer NAA, Airplay, and DLNA, catering to

audiophiles seeking diverse playback options.

ARCE streamer's capabilities extend beyond its primary features. It offers seamless playback

of local files through USB, SD card, and NAS, empowering users to enjoy their music library

effortlessly.

' '

3. DESIGN'HIGHLIGHTS'

3.1

ADAPTIVE FIFO BUFFER RECLOCKING

The DENAFRIPS approach to address the jitters issue by FIFO BUFFER RECLOCKING. The

adaptive FIFO buffer store the source digital audio data in the memory. These data are read

from the memory using the low phase noise, precision TCXO FEMTO Clock, located right in

the STREAMER.

This technology is close to the perfection, especially so with the local FEMTO Clock. The

jitter is so small that it can be neglected.

3.2

PROPRIETARY STREAMER MODULE

The ARCE STREAMER is equipped with a unique Streamer Module - developed by DENAFRIPS

engineer in-house - incorporating a Quad-Core AMR Cortex Processor, High Quality Crystal

Oscillators, LT Fast Transient Response, Low Noise, and LDO Regulators. Tailored Operating

System (OS) optimized to deliver a euphoric sound experience

3.3

STREAMER ARCHITECTURE

DIGITAL SIGNAL PROCESSING – The FPGA chip of this product is filled with DENAFRIPS'

extensive experience in Digital Signal Processing. Furthermore, the digital signals are

safeguarded through Galvanic Isolation using Opto-Couplers

FEMTO CLOCK – These data are read from the memory using the low phase noise, accurate

precision FEMTO Clock, located right in the STREAMER. The processed data are sent to the

final stage Discrete R-2R for DA conversion.

4. OPERATING'INSTRUCTION'

4.1

Quick Start Guide

The ARCE STREAMER is easy to use. Nonetheless, please read this section to fully

understand the functions and features available.

Figure 1. ARCE STREAMER Front Panel

Description:

(1) Standby Button

Press the button once to switch on the STREAMER, vice versa, press once to switch the

STREAMER into standby mode.

The Standby LED shall be on when the STREAMER is in Standby Mode. The LED shall be

dimmed when the STREAMER is in Operating Mode.

(2) LED Status

LED

Off

SETUP

Streamer in Setting Mode

One

I2S/USB

Not In Used

NET

Network Connected

Network Connection Lost

LOCAL

Local File Playback

Streaming Service

STREAM

Streaming Service Selected

(3) SETUP Button

Press the button once to enter Setting Mode – SETUP LED On. Press the button once again

to exit Setting Mode – SETUP LED Off.

3 4 5 6

(4) I2S/USB Button

Not in used.

(5) Source Button

Toggle the button to select the desire Streaming Source, i.e. roon / HQP / Airplay / DLNA.

The correspondence selected Streaming Source’s LED will turn On.

(6) Local Button

Press the button once to set the Arce Streamer to playback music from local files control via

Android based App (pending release).

Parameter Settings:

I²S Pin-Out Configuration:

1. Press SETUP button once, SETUP LED on. Arce Streamer in Setting Mode

2. In Setting Mode, the push buttons and LEDs on the front panel represent a different

meaning.

Button

I2S/USB

Setting Selection – Left

SOURCE

Setting Selection – Right

3. Press I2S/USB or SOURCE button. The Streaming Service LED will turn on/off

according. Stop when ‘roon’ LED is turned on. You are in I2S Setting Mode as the

‘roon’ LED on.

4. Toggle the LOCAL button momentarily, I2S/NET/LOCAL will turn on/off in a fixed

pattern to denote binary 000-111

5. Set the I2S Pinout to 000

6. Wait for 5s or Press the SETUP button once again to exit Setting Mode

7. STREAMER back in operational mode

I²S Pinout Configuration

MODE

LED

I2S PINOUT

I2S

NET

LOCAL

DATA

BCK

LRCK

DATA

BCK

LRCK

MODE

DATA-

DATA+

BCK+

BCK-

LRCK-

LRCK+

DATA+

DATA-

BCK+

BCK-

LRCK-

LRCK+

DATA-

DATA+

BCK-

BCK+

LRCK-

LRCK+

DATA+

DATA-

BCK-

BCK+

LRCK-

LRCK+

DATA-

DATA+

BCK+

BCK-

LRCK+

LRCK-

DATA+

DATA-

BCK+

BCK-

LRCK+

LRCK-

DATA-

DATA+

BCK-

BCK+

LRCK+

LRCK-

DATA+

DATA-

BCK-

BCK+

LRCK+

LRCK-

Table 1. I2S PINOUT CONFIGURATION

I²S DSD L/R Channel Configuration:

1. Press SETUP button once, SETUP LED on. Arce Streamer in Setting Mode

2. In Setting Mode, the push buttons and LEDs on the front panel represent a different

meaning.

Button

I2S/USB

Setting Selection – Left

SOURCE

Setting Selection – Right

3. Press I2S/USB or SOURCE button. The Streaming Service LED will turn on/off

according. Stop when ‘DLNA’ LED is turned on. You are in I2S DSD L/R Channel

Setting Mode as the ‘DLNA’ LED on.

4. Toggle the LOCAL button momentarily, LOCAL LED will turn on/off.

• LOCAL LED Off – I2S DSD Channel Norm

• LOCAL LED On – I2S DSD Channel Swap

5. Wait for 5s or Press the SETUP button once again to exit Setting Mode

6. STREAMER back in operational mode

External Clock Configuration:

1. Press SETUP button once, SETUP LED on. Arce Streamer in Setting Mode

2. In Setting Mode, the push buttons and LEDs on the front panel represent a different

meaning.

Button

I2S/USB

Setting Selection – Left

SOURCE

Setting Selection – Right

3. Press I2S/USB or SOURCE button. The Streaming Service LED will turn on/off

according. Stop when ‘Airplay’ LED is turned on. You are in External Clock Setting

Mode as the ‘Airplay’ LED on.

4. Toggle the LOCAL button momentarily, NET LED will turn on/off.

• NET LED Off – Arce uses internal clock

• NET LED On – Arce uses external clock

5. Wait for 5s or Press the SETUP button once again to exit Setting Mode

6. STREAMER back in operational mode

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