Yes I tried other combos but prefered this one, also follows simon7000 (diyaudio member) to use doubling the resistors¡'s wattage rating to reduce distortion by 6 dBs like Jesper noted.
Greetings
Felipe
Greetings
Felipe
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Problem solved with Schiit
I was not truly transmitting DSD over PCM even though some measurements such as a DSD clock signal were present at JLSounds output pins.
My problem was the HQPlayer configuration. I found a great web site for explaining step by step how to configure the most common music playing software at DSD Setup for Schiit Audio DACs. There is a lot of good Schiit on this web site.
Thanks for everyone's input. I hope that the above link can help others. The Schiit web site also criticizes Microsoft Windows for not being very music software stable. I am more tempted than ever to try Linux.
I was not truly transmitting DSD over PCM even though some measurements such as a DSD clock signal were present at JLSounds output pins.
My problem was the HQPlayer configuration. I found a great web site for explaining step by step how to configure the most common music playing software at DSD Setup for Schiit Audio DACs. There is a lot of good Schiit on this web site.
Thanks for everyone's input. I hope that the above link can help others. The Schiit web site also criticizes Microsoft Windows for not being very music software stable. I am more tempted than ever to try Linux.
No music yet - still working on chassis.
I'm going to test a circuit to remove the DC offset in the digital domain before going through the RC filter. Will share with the forum if it works and sounds good.
I'm going to test a circuit to remove the DC offset in the digital domain before going through the RC filter. Will share with the forum if it works and sounds good.
If I were to go with the following kit, (as mentioned in the first post in this thread), should I get the isolated version of the xmos board? (whatever that is) :
ES9018K2M XMOS DSD DXD 384kHz USB DAC with Bit-perfect volume control and SPDIF input - DIYINHK
It's about $30 more.
ES9018K2M XMOS DSD DXD 384kHz USB DAC with Bit-perfect volume control and SPDIF input - DIYINHK
It's about $30 more.
Thank you.
I have the SMSL M8 right now which has the XMOS and ES9018K2M in it like in this kit. Would be nice if I could make a DAC that sounds as good as this one or better. That way I could integrate the linear power supply into a case that I like that matches the looks of the rest of my DIY system (b1 buffer & lm3886).
I guess I need to buy some filter boards as well? Any suggestion for a filter board that would well with this ES9018K2M board in this kit?
I still need to go through this thread I'm posting in right now. But what I got so far is that is really experimental still right now? i.e. just sending the DSD to transistors with no DAC or filter boards?
EDIT: maybe I should only buy the ES9018K2M part of this kit? $39. And get the i2OverUSB board from JL sounds instead?
Hi Jesper! Thanks for your suggestion. Yes, RN55 are 1/8W ... I ordered them just cause it's a resistor I know "sonically" from DCB1. I didn't notice simon7000 measurements , thanks for pointing me there. I'll wait to place another order to catch a pair of RN70E ...!
So, 1K / 3.3nF should "work better" than 390R / 10nf . My main concern is desoldering the MKPs from the board.
In any case, I'll try to get also a pair of 1K RN70E - quite a shame I already had a pair of RN60 in house.
Thanks you both - nautibuoy's PCB is getting a big jumpstart for me in many DIY aspects.
The pads are small so unless you're very good at removing parts you risk delaminating the copper tracks.
I've had one or two enquiries about the availability of PCBs (none currently) and after the recent discussion about evaluating different filter values I'm thinking about ordering another small batch and making up some boards that will be identical except for the filter component values (but with same filter frequency). Before I do so I just thought I would check if there is any wider interest?
Looking forward, with Carlsor working on mute options and based on the group findings/experiences with the current boards I'm wondering if there is any mileage in a follow up exercise, maybe optimised with smd components, a flipflop per channel, etc?
Ray
Looking forward, with Carlsor working on mute options and based on the group findings/experiences with the current boards I'm wondering if there is any mileage in a follow up exercise, maybe optimised with smd components, a flipflop per channel, etc?
Ray
You're very welcome.
I think you maybe confusing things. The filter boards discussed on this thread are for low pass filters to derive analogue from DSD data and aren't relevant to the ES9018K2M board you've linked to. To get analogue from DSD data that's all you need, a low pass filter consisting of one resistor and one capacitor; no transistors needed unless you want to pass the analogue signal through a buffer stage.
My personal choice would be the JLSounds USB board (with data reclocking after its isolation) and, as I've suggested elsewhere, I would opt for the JLSounds AK4490 DAC board instead on the ES9018 as well. I've been listening to the AK4490 in one of my no-dac projects (obviously replacing the no-dac board) and it sounds very good and it's direct DSD mode gives a flavour of the no-dac approach.
Yes, I would be happy to consider that. I am hoping that, as a group, we can pull together improvement ideas and agree an optimised Mk2 board.
If MkII gains momentum, removing DC offset is an attractive prospect, especially if it also improves the ability to drive lower-impedance appliances. I prefer an active ground, and would like to try with a rig having 10k input impedance on each half of balanced inputs...
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While we're on the subject, it would be good to have mounting holes on the PCB so it can be used with other USB -> DSD boards
Thanks so much for your time and effort
Thanks so much for your time and effort
FYI there is a nice online filter calculator that provides R/C/L calculations for different filter types:
Filter Design and Analysis
Filter Design and Analysis
... there may also be AADE filter design v. 4.5 ... capable of calculating various filters with varying degrees of ringing and ripple. A bit finicky to use though but IMHO very useful in evaluating different filter types (gauss, bessel, butterworth etc).
Cheers,
Jesper