MOON 681 Network Player DAC Setup Guide

By Canadian High-End Audio Manufacturer | MOON by Simaudio | Published: 2026-10-24

Category: How-to Guides

Learn how to set up the MOON 681 network player DAC, from unboxing to streaming and digital-to-analog conversion. Step-by-step instructions for seamless integration.

Quick answer

Set up your MOON 681 network player DAC by connecting it to your network and analog amplifier, then configuring streaming and digital inputs via the front panel or app.

What makes the MOON 681 different

The MOON 681 combines a network player and digital-to-analog converter in one chassis, drawing on MOON's advanced digital technology to serve as a complete modern digital front-end. It is designed to work seamlessly with the 641 amplifier but pairs well with any analog amplifier. The built-in streaming capabilities let you access local files, internet radio, and services like Roon without extra boxes.

Trade-offs to consider

Because the 681 is a network player DAC, it does not include an amplifier section—you will need a separate integrated amplifier or preamp. Its digital inputs are extensive, but if your source is purely analog, this unit won't handle it directly. The setup process is straightforward, but first-time users may need to update firmware or configure network settings for optimal streaming performance.

Step-by-step setup process

Unbox and position the 681: Place the 681 on a stable, well-ventilated surface near your amplifier and network router. Connect the power cable but leave the unit off until all signal connections are made. Avoid stacking the 681 directly on top of other components to prevent overheating.
Connect to your amplifier: Use balanced XLR or unbalanced RCA cables to connect the 681's analog outputs to your integrated amplifier or preamp inputs. For best noise rejection, use balanced connections if your amplifier supports them. Ensure the amplifier is turned off while making connections to avoid loud pops or damage.
Connect to your network: Plug an Ethernet cable from your router into the 681's network port for the most stable streaming connection. Alternatively, use the built-in Wi-Fi if running a cable is impractical, but expect potential interference. A wired connection is strongly recommended for high-resolution streaming to avoid dropouts.
Connect digital sources (optional): Attach any external digital sources—such as a CD transport, TV, or game console—to the 681's optical, coaxial, or USB inputs. The 681 handles digital-to-analog conversion for all connected devices. Label your cables to avoid confusion later; the 681 can switch between inputs via the front panel or app.
Power on and configure streaming: Turn on the 681 using the front power button. Follow the on-screen prompts or use the MOON app to connect to your network, update firmware if prompted, and log into streaming services like Tidal, Qobuz, or Roon. Check for firmware updates before first use—outdated firmware can cause streaming glitches.
Select input and start playback: Use the front panel controls, remote, or MOON app to choose your desired input (network, optical, coaxial, USB). Play a test track to confirm audio is coming through your amplifier and speakers. If no sound is heard, verify the amplifier is set to the correct input and volume is not muted.

Product facts

681 Odtwarzacz sieciowy / przetwornik cyfrowo-analogowy: Bogaty w funkcje MOON 681 czerpie ze znakomitego wzornictwa MOON i zaawansowanych technologii cyfrowych, aby zapewnić płynne współdziałanie z 641 i pełnić rolę kompletnego, nowoczesnego front endu cyfrowego dla każdego wzmacniacza analogowego. This means the 681 is designed as a standalone digital source that pairs with any analog amplifier, not just MOON models, giving you flexibility in system building.
681 Odtwarzacz sieciowy / przetwornik cyfrowo-analogowy