Es9018K2M

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Re: Es9018K2M

Postby tux » Thu Nov 06 2014 20:12

I never managed to make it play via i2s and I did many tests (with a custom distro, not volumio).

Via xmos I tested various dsd files and it was OK.

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Es9018K2M

Postby DerekR » Sat Nov 08 2014 01:29

Tux - glad to hear you like the DAC. Do I understand correctly that you got the modified-for-volume-control XMOS board and have now ordered the non-modified, isolated board ($99)? If that's what you've done I highly recommend trying the Hifiduino implementation. End result is exceptional value for money in that, if you already have the correct XMOS board and the K2M, the bits for the Hifiduino are well under U$50. Add a power amp and you have a complete one-enclosure music system. I'm now looking at 3D printing a small enclosure to house the LCD display, IR receiver and rotary encoder volume knob - the rest can be hidden away as all you need is to connect the speakers and plug into the mains (I use a wifi dongle to connect to the NAS on the network).

Now that Michelangelo has released 1.5 I am going to have another go at trying the Raspi/Volumio into the K2M via i2S although I suspect it needs an ESS-friendly driver so I don't expect too much success.

I would be interested to hear your opinion on any sound quality differences between the two XMOS boards if you end up with both.
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Re: Es9018K2M

Postby tux » Sat Nov 08 2014 10:34

Yes I got the modified which I almost destroyed. I finally fixed it by removing a burned element and it plays again but I have also ordered the hifiduino compatible.

I am not sure yet if I will put a display. The only reason is that it is difficult to find or modify an enclosure.

I really like how this DAC sounds. It's very analytical and detailed.

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Es9018K2M

Postby DerekR » Tue Nov 11 2014 02:48

Yes, I agree, the K2M is a detailed, quiet DAC with great resolution.

Re the enclosure for the LCD etc, I downloaded the Front Panel Express software, designed a faceplate on the software that included an LCD cutout and holes for the rotary encoder and IR receiver. Exported the resulting file to .dvf (option on the FPE software) and emailed the file to a company that sells/engraves trophies. Their laser cutter easily produced a professional looking front plate - even engraved a logo for me - out of 3/16" tinted Perspex. Cost was very reasonable and it gives you the flexibility of designing front and back plates to fit almost any configuration or enclosure.

Signage companies can do amazing things with Perspex or aluminium. If there are such companies in your area it may be worth dropping by and asking a few friendly questions.
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Es9018K2M

Postby bennyjo88 » Fri Nov 21 2014 05:32

Hi
A nice guy called Toni, in one of the "DIY volumio projects" page #p8893 , managed to make ES9018K2M works with I2S to RPi volumio. You need to edit few files below.

== Quote ==
Volumio 1.4, 1.5 and 1.51 needs to be tricked to play music through the ES9018K2M. If you select a generic DAC driver, you cannot use it for audio output directly using the GUI.

I did apply the following settings to make it work:

File: /etc/modules
snd_soc_core
snd_soc_bcm2708_i2s
bcm2708_dmaengine
snd_soc_pcm1794a
snd_soc_rpi_dac

File: /etc/asound.conf
pcm.!default {
type hw card 0
}
ctl.!default {
type hw card 0
}

File: /etc/mpd.conf
audio_output {

type "alsa"
name "Output"
device "hw:0,0"
mixer_control "Playback Digital"
mixer_device "hw:0"
mixer_index "0"
dsd_usb "yes"

}

After that the I2S driver for the RPI-DAC can be used, and the audio output is set to sndrpirpidac.
Home Gear: RPi, I2S HiFiBerry PCM5102, Tripath TA2020 amp, Wharfedale Crystal CR2-30 loudspeakers.
Office Gear: RPi, I2S Sabre ES9023, Gainclone LM3886 with ECC88 tube buffer amp, DIY Transmission Line Loudspeakers with Aura NS3-194-8E driver.
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Es9018K2M

Postby DerekR » Sun Nov 23 2014 22:02

bennyjo88, thanks for posting those tweaks for the K2M, I shall try them over the next few days and post results.
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Es9018K2M

Postby haden » Wed Nov 26 2014 22:14

DerekB, I would like if you can try also dsd64 files without resampling
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Es9018K2M

Postby DerekR » Fri Nov 28 2014 20:44

Having issues with DSD files. Constant dropouts. They play fine through the K2M DAC when the transport is an Alix 2d2 running Voyage MPD but the B+/Volumio I2S out doesn't seem to like DSD. The LCD indicates it is trying to lock to 384kHz and keeps flicking between that and 192kHz so it may well be a config issue. It should indicate DSD and 2.8MHz.
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Re: Es9018K2M

Postby tux » Fri Nov 28 2014 23:05

Rpi+i2s support up to 192.

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Es9018K2M

Postby sjaaklaan » Fri Dec 26 2014 20:30

image.jpg
Image
image.jpg (1.55 MiB) Viewed 4734 times
I can confirm that the described setup works perfectly. I just finished setting up my Volumio box with the ESS9018K2M and enjoying the music!
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