L.K.S. Audio MH-DA004 Dual ES9038PRO DAC - Van Damme's double impact?
Dec 30, 2020 at 5:09 AM Post #3,121 of 4,419
LKS004 Mod Markup.png

[5] Wima 0.15uF 100V 5mm lead spacing metallized polypropylene Qty:14

b0bb,
These recommended by you MKPs bypass the nearby electrolytics?
 
Dec 30, 2020 at 9:14 PM Post #3,122 of 4,419
Step 1-4 completed today. Crystek is on the way and the Accusilicon is installed instead. Might just stick with this clock for awhile since I have the cap soldered on the the back side of the board across pins 7&14 of the dip socket

Very impressed with the upgrades thus far. Quick listen to Norah Jones was extremely enjoyable. Soundstage came forward, everything seemed just tighter, mids and bass were solid. Can't wait to have things settle it. Thank you guys for all the support in walking me through the details!

Very much appreciated, Happy New Year!

Markup of some of the common mods

Initial set of modifications:
[1] XO Crystek CCHD950X Qty: 1

[2] Schottky High Barrier diodes, fully insulated low leakage, Vishay MBRF10H100 Qty:28
The actual diodes are black in the top right of the picture on the Amanero PSU

[3] Tantalum Vcom bypass Qty:2
Generic Yellow bead solid tantalum 100uF 10V eg AVX TAP107K010SRW
Unit in photo is a Wet Tantalum 150uF 10V Vishay 109D157X9010C2 (Expensive)




 

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Dec 31, 2020 at 5:33 AM Post #3,123 of 4,419
Did you buy it from a place other than Audiophonics or Magna ?

Pulsar is not going to last forever so I am looking for viable alternatives.
AS318B does not seem to be on sale anymore

I currently evaluating SiTime SIT-5157 and Bliley BOVTL

SIT-5157 is a MEMS TCXO, surprisingly good expecially very deep hard hitting bass.
SiTime has increased prices, this used to sell for 30USD, it is over 50USD at the distributors today.
I am planning to get SIT-5357 which is the low phase noise variant.

BOVTL is a low cost OCXO, Bliley just starting selling to endusers, they specialize in OCXOs.
This OCXO as a proof of concept to see if it will work in the LKS, I probably order one of their higher end units with low phase noise
BOVTL rms jitter in the 10Hz-10KHz range is 160fs, CCHD950 is 226fs, AS318B is 200fs

Picture of the SIT-5157 mounted on a Twisted Pear Rhea adaptor.
@fmzip, this is what Rhea looks like
0545FF95-2056-44CB-9CCB-F6554D8C4CAB_1_201_a.jpeg
588339A3-D1DB-41CD-8989-B6D0A931369A_1_105_c.jpeg
Yes, audiophonics.fr
https://www.audiophonics.fr/en/comp...00-ultra-low-jitter-clock-100mhz-p-13728.html
But there out of stock :frowning2:

B0bb : "I currently evaluating SiTime SIT-5157 and Bliley BOVTL"
Is the bass better than Pulsar ?
 
Dec 31, 2020 at 8:35 PM Post #3,125 of 4,419
Jan 1, 2021 at 12:21 PM Post #3,126 of 4,419
Good afternoon guys. Sorry to bother you with a fairly simple question that I already asked here a few days ago but got no answer (... except for a valuable private opinion from "Xoverman" ...) That is: I would like to continue improving the SQ of my LKS with Amanero usb, so I would like, please, your opinion about putting a Singxer su6 between my pc and the dac. Do you think I will take a step forward using the Singxer and its I2S output instead of the direct usb from pc to dac ...? I appreciate any opinion before spending 700 euros of Singxer + hdmi. Happy New Year to all....:relaxed:
 
Jan 2, 2021 at 6:17 AM Post #3,129 of 4,419
SIT-5157 bass hits harder than Pulsar but could do more with finesse, could not really tell the difference between a bass guitar and a double bass,

BOVTL midrange is warmer.

Pulsar has the best balance overall.
Happy New Year to all of you :)

@b0bb maby it's not the phase noise, but the amount of noise or ripple the is reflected back into the power supply by the crystal .
 
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Jan 2, 2021 at 10:30 PM Post #3,134 of 4,419
In case anyone interested in Musetec MH-DA005, I have one in house for a few weeks. Also have in house stock 004 and Auralic Vega for comparison. In a word, 005 is quite a dac, can't understand lack of interest and zero reviews.
Thanks for sharing! Was curious as well why there weren't any posts about this DAC
 

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