Important: Setting up the HDACC for use is easy, but the Blu-ray players have manuals that run 60-90 pages and setting them up can be complicated. We’ve covered the key settings for you below to shorten the learning curve. It’s a good idea to connect the player to a suitable display with HDMI input so you can follow the onscreen menu advice we provide below. After set-up, you have the option of not using the display but we think you will find it helpful when selecting the audio set-up on each disc.
Be sure to configure the video output of the player for HDMI 1080p video output and HDMI Audio as Bitstream output, with audio sampling frequency set for 192K and Dynamic Range Control off (see #4 below).
1. The front panel is protected by a layer of thin film that’s a little hard to see but does come off. Drag your thumb across the edge a few times from the corner to lift and peel. A pristine OLED display awaits underneath.
2. The HDACC (but not the Evolve) is really 2 products in one;
– It can function as just a DAC with RCA or XLR outputs for your Pre-amp Aux inputs or
– It can be used as a versatile digital preamp with its own DAC output.
Before you start, choosing one of the two is a necessity in terms of its programming.
If used as a Preamp, BEFORE SWITCHING YOUR AMP ON, YOU MUST SET THE “LINE-OUT” OPTION from FIXED Level (the default setting) to VOLUME Level (variable ouput). This way the HDACC volume control is activated. Otherwise the unit will remain in FIXED Level, at Max volume that could damage your system if you do this with music playing or your power amp switched on.
3. The remote control has an insert that keeps the battery off during transit and storage, be sure to remove it. BEFORE switching the HDACC off, the power amp should be off. To switch-on, do the reverse: turn on the HDACC first, then the power amp.
“Due to bandwidth limitations and copyright protection, high resolution audio formats such as Dolby Digital Plus, Dolby TrueHD, DTS HD High Resolution, DTS MasterHD Audio, and LPCM 24/96K 2.0 cannot be sent through the coaxial or optical digital audio output. A reduced resolution version of the same audio track will be output instead. To listen to high resolution audio formats in their best quality, please use the HDMI connection if you have a receiver or DAC that handles HDMI audio
Due to copyright restrictions, SACD audio cannot be sent through the coaxial or optical digital audio output. To listen to SACD, please use the HDMI or analog audio connections.
Due to copyright restrictions and bandwidth limitations, full resolution audio from DVD Audio discs cannot be sent through the coaxial or optical digital audio output. To listen to DVD-Audio in full resolution, please use the HDMI or analog audio connections. HDCP stands for High-bandwidth Digital Content Protection. The HDMI output of the OPPO Blu-ray Disc player uses HDCP to encrypt the digital audio and video content.”
4. To get the best possible audio via HDMI, you need to set the following options on the Blu-ray player’s audio format Setup Menu
The HDACC and Evolve support HDMI v1.3, enabling the player to convert either the Dolby TruHD or DTS MasterHD high resolution lossless (compressed) soundtracks to its original uncompressed LPCM output and ingeniously (HDACC) de-embeds the left and right front channels (LPCM 24/96-192K Stereo), or if you use the Evolve, the full 7.1 channel surround sound automatically; Please set these audio format options on your Blu-ray player:
5. If you are just using Coaxial or Optical Digital Audio from the Blu-ray player, the data rate will be reduced by the player to a lower resolution:
• Secondary Audio: Off
• HDMI Audio: Off
• SACD Output: (any – SACD is not available through the optical/coaxial output)
• HDCD Decoding: On
• Coaxial Optical Output: LPCM
• LPCM Rate Limit: 192K
6. Every Blu-ray disc has a title page with a menu of options, including Audio Set-up. Using your remote control, navigate to that page and select the “Surround” output, either Dolby TruHD or DTS MasterHD, not the LPCM 2.0 version. The HDACC will automatically de-embed the original, uncompressed LPCM 24/96-192K 2.0 soundtrack from the uncompressed bitstream; the Evolve will de-embed up to 7.1 channels. Allow 15-45 seconds for HDCP authentication to confirm a secure connection. You will know if you set it up right when the display reads HDMI In 192K or 96K depending on the content. Caution; the full dynamic range can be damaging to both the system and your hearing, be careful.