RME User Forum — Firmware Updates ADI-2 Pro 177 / 87 and DAC 17 / 21

Re: Firmware Updates ADI-2 Pro 177 / 87 and DAC 17 / 21

null@example.com (MC) — Tue, 21 Aug 2018 13:39:15 +0000

bejoro wrote:

I had activated "auto display off". So it is not possible to see the display turning off while pushing the power button because it is already off. I always waited for the LEDs to turn off and that is too long by far.

In firmware 180/88 the display will now light up when the unit starts to shut down, so you know when to remove the finger from the standby button.

And the bug mentioned in the previous post should be fixed as well.

https://www.forum.rme-audio.de/viewtopic.php?id=27467

Re: Firmware Updates ADI-2 Pro 177 / 87 and DAC 17 / 21

null@example.com (MC) — Sat, 04 Aug 2018 14:26:34 +0000

Please note that we just got notified about a bug in FPGA version 177, which adds distortion on the analog recording signal's left channel at sample rates 352.8 kHz and higher. If you don't use these sample rates for recording PCM or DSD you don't have to worry. Otherwise please go back to the former version 174 / 86 with the former Flash Update Tools:

https://archiv.rme-audio.de/download/fu … 174_86.zip

An immediate update is not possible due to summer holidays, so it will take about two weeks until we can provide a fixed version of 177/87, which will have more changes that we finished working on already.

Re: Firmware Updates ADI-2 Pro 177 / 87 and DAC 17 / 21

null@example.com (MC) — Sat, 04 Aug 2018 14:12:28 +0000

We are currently trying to add a visual indication of when to release the button for older and newer Pros.

Re: Firmware Updates ADI-2 Pro 177 / 87 and DAC 17 / 21

null@example.com (bejoro) — Thu, 02 Aug 2018 08:22:23 +0000

I have checked what I was doing differently since the FW update.

I had activated "auto display off". So it is not possible to see the display turning off while pushing the power button because it is already off. I always waited for the LEDs to turn off and that is too long by far.

Re: Firmware Updates ADI-2 Pro 177 / 87 and DAC 17 / 21

null@example.com (MC) — Wed, 01 Aug 2018 07:56:15 +0000

On older units 1.5 seconds, then the unit shuts down. If you push the button only until the display goes off the total shutdown time is 3 seconds. This function is not changeable via firmware update.

BTW, this is a topic from January 2018, firmware 159 DSP 85, two firmware versions back, and not related to 177/87.

Re: Firmware Updates ADI-2 Pro 177 / 87 and DAC 17 / 21

null@example.com (bejoro) — Wed, 01 Aug 2018 05:21:57 +0000

Thanks. I think I always pushed the button only as long as it took to turn off the display, maybe a tiny bit longer.
How long would I have to push the button for the "emergency shutdown"?

Re: Firmware Updates ADI-2 Pro 177 / 87 and DAC 17 / 21

null@example.com (MC) — Tue, 31 Jul 2018 06:41:11 +0000

This happens when you push the button too long. Just push it until the display goes off. If you push longer you enter a (useless, we know) emergency shutdown mode which resets the memory of the standby button controller.

Re: Firmware Updates ADI-2 Pro 177 / 87 and DAC 17 / 21

null@example.com (bejoro) — Tue, 31 Jul 2018 06:36:56 +0000

Unusual power on/off behaviour after firmware update of two ADI-2 PRO.

After usage in my system I switch the ADI-2 PRO off (red led power button) and then disconnect main power of the whole system.

If I connect main power again (next day) both ADI-2 PRO will power up (white led power button). That occurs very often (let's say 7 of 10) even if I wait about 20 seconds after power off of the ADI-2 PRO before main power disconnect.

Re: Firmware Updates ADI-2 Pro 177 / 87 and DAC 17 / 21

null@example.com (MC) — Sun, 29 Jul 2018 05:10:20 +0000

It jumps to 768 kHz because that is the highest sample rate supported (same on iOS). The app/software/player then has to set the sample rate of the currently playing file on the ADI, or perform a real-time sample rate conversion if it prefers to send out 768 kHz constantly...

Re: Firmware Updates ADI-2 Pro 177 / 87 and DAC 17 / 21

null@example.com (george951) — Sun, 29 Jul 2018 02:01:14 +0000

MC wrote:

That is a problem of your player or how you use it, not of the firmware or the ADI-2. When DSD works then PCM will work as well.

Yeah that's what bugs me. Usually it really should be working well on PCM if it could work on DSD. The thing is that when I plug my player in there, the sample rate of ADI2 just jumps to 768kHz directly, while on computers we could modify it with the software. Have you ever connected an Andriod phone to the ADI2? Are they working properly?

Re: Firmware Updates ADI-2 Pro 177 / 87 and DAC 17 / 21

null@example.com (MC) — Sat, 28 Jul 2018 09:52:15 +0000

That is a problem of your player or how you use it, not of the firmware or the ADI-2. When DSD works then PCM will work as well.

Re: Firmware Updates ADI-2 Pro 177 / 87 and DAC 17 / 21

null@example.com (george951) — Sat, 28 Jul 2018 08:17:48 +0000

Just updated my ADI-2 DAC yesterday and it works great with my windows laptop! I am wondering if the further update would add support for the Android devices. I have a AK SP1000 and really want to connect it to the ADI-2. Right now it could only play DSD files through the ADI-2 so I guess adding support to PCM files wouldn't be difficult.

Re: Firmware Updates ADI-2 Pro 177 / 87 and DAC 17 / 21

null@example.com (nefilim) — Fri, 06 Jul 2018 04:13:57 +0000

Thank you Matthias, I've surmised the same, the problem is most likely with Roon. I'll keep nudging them along to get to the bottom of it and hopefully provide a resolution.
In the mean time, enjoying my multi channel tunes (ala crossover convolution) with a Macbook Pro

Re: Firmware Updates ADI-2 Pro 177 / 87 and DAC 17 / 21

null@example.com (MC) — Wed, 04 Jul 2018 01:17:21 +0000

Thanks for the link, quite interesting. While I cannot exclude a fault on our side, Mac OS X working with both the old and new firmware in multi-channel mode clearly shows that it should work. Also the programmer of HQPlayer owns an ADI-2 Pro. I am pretty sure if that wouldn't work with Linux in general I would have been notified already.

The main problem here might be that multi-channel in CC mode just starts to get popular. See the mostly failing Windows 10 experience...

Re: Firmware Updates ADI-2 Pro 177 / 87 and DAC 17 / 21

null@example.com (nefilim) — Tue, 03 Jul 2018 19:02:35 +0000

Nice update! I did get a warning on OSX 10.3.4 about the flashing tool being a 32bit app and that 32bit app support is being deprecated.

Unfortunately still having issues with Roon + multi channel audio on Linux (fine on OSX): https://community.roonlabs.com/t/rock-n … on/43751/8