Mytek Brooklyn Thread

Mar 31, 2018 at 5:13 PM Post #153 of 835
did you run the upgrade file first? If you did and the device doesn't fully boot back up, run the 1.21 firmware file (not the upgrade.mfb) and it should reboot and get things going again. at least it did with mine

Read my earlier post about this. It’s going now. And yes, I did do the update first, the unit just sat there with a white blinking logo. I then did the restore file and that worked.
 
Apr 1, 2018 at 7:37 AM Post #154 of 835
did you go from 1.11 to 1.21, or did you go 1.11 to 1.20 to 1.21? the latter was the path I took and the 1.21 upgrade file didn't seem to finish (Mytek logo stayed multicolor) after I few minutes I loaded the 1.21 firmware and that ran until completion and then the DAC was functional
I went from 1.11 to 1.21 using just the upgrade file. The only thing I did do beforehand was install the 1.30 version of the control panel.
 
Apr 1, 2018 at 8:19 AM Post #155 of 835
I went from 1.11 to 1.21 using just the upgrade file. The only thing I did do beforehand was install the 1.30 version of the control panel.

then that would explain it... anyone who updated to 1.20 first and then goes to 1.21 has the upgrade appear to never end, while the 1.11 to 1.21 upgrade runs and appears to complete.
 
Apr 20, 2018 at 8:58 PM Post #156 of 835
I have a curious problem with my Brooklyn DAC+. I always listened to music with the "MQA Decoder" enabled. Today I disabled it because I wanted to experiment with the PCM filters and I noticed a crackling noise in the right channel with PCM 88.2, 96 and 192Khz tracks. The crackling noise is very evident at the beginning of the track and in quiet passages.
DSD files are unaffected by this problem (I tried x64, x128 and x256 tracks). PCM 44.1Khz tracks are also unaffected by this problem.
This happens with a sMS-200ultra connected via USB. I tried the same PCM tracks using an Oppo 203 connected to the Brooklyn DAC+ using SPDIF and did not find any problem.
I am using firmware 1.21 and I do not have the jumper installed (I mentioned this because I read @Skampmeister's post mentioning noise in the right channel somehow related to the jumpers).

Any ideas why this problem happens only with PCM tracks above 44.1 Khz, only on the right channel, only with the USB input and only when MQA is disabled?

Thanks!
 
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Apr 20, 2018 at 10:13 PM Post #157 of 835
First try a different USB port and make sure your USB drivers are up to date. You might need to open a support ticket with Mytek.
 
Apr 21, 2018 at 6:30 AM Post #158 of 835
Huh! I just replicated the problem with a 192 Khz track. With MQA disabled I can hear slight crackling in the right channel when this particular track goes to silence for a few moments. Skipping to this section of the track produces the same clicking each time. I've tried it with other tracks and to me it only seems to happen with a song is fading to silence. Some things I noticed:
1. You can see the signal level jump on the Brooklyn DAC+ on the right channel only when the crackling happens.
2. With MQA Enabled, the crackling is gone. HOWEVER, you can still see the level jump on the right channel only. For some reason enabling MQA hides the audbile crackling though it's still evident in the signal meter.

Looks to be a bug! I'm going to repot this to Mytek.

I have a curious problem with my Brooklyn DAC+. I always listened to music with the "MQA Decoder" enabled. Today I disabled it because I wanted to experiment with the PCM filters and I noticed a crackling noise in the right channel with PCM 88.2, 96 and 192Khz tracks. The crackling noise is very evident at the beginning of the track and in quiet passages.
DSD files are unaffected by this problem (I tried x64, x128 and x256 tracks). PCM 44.1Khz tracks are also unaffected by this problem.
This happens with a sMS-200ultra connected via USB. I tried the same PCM tracks using an Oppo 203 connected to the Brooklyn DAC+ using SPDIF and did not find any problem.
I am using firmware 1.21 and I do not have the jumper installed (I mentioned this because I read @Skampmeister's post mentioning noise in the right channel somehow related to the jumpers).

Any ideas why this problem happens only with PCM tracks above 44.1 Khz, only on the right channel, only with the USB input and only when MQA is disabled?

Thanks!
 
Apr 21, 2018 at 9:33 AM Post #159 of 835
First try a different USB port and make sure your USB drivers are up to date. You might need to open a support ticket with Mytek.
I do not have other players with a USB output, only the SOtM sMS-200ultra. I already opened a ticket on the Mytek's support site.
 
Apr 21, 2018 at 9:52 AM Post #160 of 835
Huh! I just replicated the problem with a 192 Khz track. With MQA disabled I can hear slight crackling in the right channel when this particular track goes to silence for a few moments. Skipping to this section of the track produces the same clicking each time. I've tried it with other tracks and to me it only seems to happen with a song is fading to silence. Some things I noticed:
1. You can see the signal level jump on the Brooklyn DAC+ on the right channel only when the crackling happens.
2. With MQA Enabled, the crackling is gone. HOWEVER, you can still see the level jump on the right channel only. For some reason enabling MQA hides the audbile crackling though it's still evident in the signal meter.

Looks to be a bug! I'm going to repot this to Mytek.
Thanks for replicating the problem. I can confirm your findings:
  1. it is evident in moments of silence and quiet passages
  2. it is more evident in certain tracks, like Amber Rubarth's Sessions from the 17th Ward (Binaural) 192/24, that is unlistenable because of the crackling, than others.
  3. the crackling noise is not random, it is the same all the times.
Very interesting what you found looking at the meter.
Just to rule out possible bad interactions with the USB player: are you using the latest DAC+ firmware (v1.21) and a player different than the sMS-200ultra?

Thanks!
 
Apr 21, 2018 at 6:13 PM Post #162 of 835
Apr 21, 2018 at 6:26 PM Post #163 of 835
Thanks for replicating the problem. I can confirm your findings:
  1. it is evident in moments of silence and quiet passages
  2. it is more evident in certain tracks, like Amber Rubarth's Sessions from the 17th Ward (Binaural) 192/24, that is unlistenable because of the crackling, than others.
  3. the crackling noise is not random, it is the same all the times.
Very interesting what you found looking at the meter.
Just to rule out possible bad interactions with the USB player: are you using the latest DAC+ firmware (v1.21) and a player different than the sMS-200ultra?

Thanks!

Yes, I'm using the latest firmware and I'm playing on my Win 10 PC via Roon.
 
Apr 21, 2018 at 7:05 PM Post #164 of 835
Yes, I'm using the latest firmware and I'm playing on my Win 10 PC via Roon.

It definitely seems a bug. Maybe introduced when they implemented the Trim option in v1.21?
Let's see what Mytek will say. They have always been quick to respond...
 
Apr 23, 2018 at 9:25 AM Post #165 of 835
I just heard from Mytek support as follows:
Please switch number of channels (4 8) in Mytek Control Panel app.

I'll have to try it when I get back from work tonight.
 

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