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Musetec (LKS) MH-DA005 DAC

Some history: I was the OP on a four year old thread about the Chinese LKS MH-DA004 DAC. It achieved an underground buzz. The open architecture of its predecessor MH-DA003 made it the object of a lot of user mods, usually to its analog section, rolling op amps or replacing with discrete. The MH-DA004 with its new ESS chips and JFET analog section was called better then the modified older units. It has two ES9038pro DAC chips deliberately run warm, massive power supply, powered Amanero USB board, JFET section, 3 Crystek femtosecond clocks, Mundorf caps, Cardas connectors, etc., for about $1500. For this vinyl guy any reservation about ESS chips was resolved by the LKS implimentaion, but their revelation of detail was preserved, something that a listener to classic music especially appreciated. I made a list of DACs (many far more expensive) it was compared favorably to in forums. Modifications continued, now to clocks and caps. Components built to a price can be improved by costlier parts and the modifiers wrote glowingly of the SQ they achieved.

Meanwhile, during the 4 years after release of the MH-DA004, LKS (now Musetec) worked on the new MH-DA005 design, also with a pair of ES9038pro chips. This time he used more of the best components available. One torroidal transformer has silver plated copper. Also banks of super capacitors that act like batteries, solid silver hookup wire, 4 femtoclocks each costing multiples of the Crysteks, a revised Amanero board, more of the best European caps and a new partitioned case. I can't say cost NO object, but costs well beyond. A higher price, of course. Details at http://www.mu-sound.com/DA005-detail.html

The question, surely, is: How does it sound? I'm only going to answer indirectly for the moment. I thought that the MH-DA004 was to be my last DAC, or at least for a very long time. I was persuaded to part with my $$ by research, and by satisfaction with the MH-DA004. Frankly, I have been overwhelmed by the improvement; just didn't think it was possible. Fluidity, clarity, bass extension. A post to another board summed it up better than I can after listening to piano trios: "I have probably attended hundreds of classical concerts (both orchestral and chamber) in my life. I know what live sounds like in a good and bad seat and in a good and mediocre hall. All I can say is HOLY CRAP, this sounds like the real thing from a good seat in a good hall. Not an approximation of reality, but reality."

melm
lordmelton's avatar
lordmelton
877 posts
 

Tape up both ends of the +5v line with electrical tape. If you only tape one end it can act as an antenna and attract RFI/EMI.

Don't tape the -ve because it'll be earth.

melm OP
1,074 posts
 

I have used several different USB cables. Most contain all four wires but one was made without No.1, carrying the 5 Volts. On occasion I have blocked the 5 Volt wire. Blocked or not there is no current in the wire when connected to the Musetec. I have never noticed any difference by blocking the wire. As always YMMV. I agree that wire No. 4, the ground should be connected. It is necessary for the "handshake." There are purists that have a switch to disconnect No. 4 after the connection is made for it is no longer necessary. Some others put a resistor on No. 4.

It is, I think, always preferable as here for the USB function within the DAC to have its own internal source of good power. Besides its dependable power source, it can give the user an extra degree of freedom in selecting a USB cable, in that the cable is freed of the powering function which is sometimes thought to compromise digital performance. Hence all the workarounds keeping the 5V line separate from the others.

americanspirit's avatar
americanspirit
64 posts
 

Yesterday I modified a ridiculously expensive USB cable (it's the cable I used for the printer) by eliminating the power cord.

I used it as a link from the iMac (with ROON) to the MUSETEC.

I was amazed by the improvement made to the dynamics and clarity of the sound, I can perceive very clearly the differences between this cable and more 200 Euro USB cables with the +5V PIN present.

I'll be modifying a premium USB cable tonight, I expect amazing results.

I advise everyone to experiment with this modification, I await feedback and measures 😁😁😁

charles1dad's avatar
charles1dad
10,250 posts
 

I'll be modifying a premium USB cable tonight, I expect amazing results.

Let us know your outcome.

Charles

sns
3,192 posts
 

As with any highly resolving/transparent dac with excellent usb implementation usb cables will make substantial difference. Having said that I've not heard major differences with taping off power pins. I only continue doing it in order to cross all T's and dot all I's.

 

In regard to my new custom streamer, now have had a chance to get well acquainted with sound quality with various configurations, I have multiple choices with Roon, HQPlayer and Stylus proprietary music players. At this point favorite is new streamer acting as dedicated server going to Sonore OpticalModule (LPS power) to OpticalRendu (Uptone JS-2) to 005 usb. Just absolutely fabulous, more than marginal gains in resolving/transparency, but sense of ease, refinement is revelatory! My greatest doubt with 005 has long been just the slightest hint of an overbearing digital sound quality, I've long stated this sense as being neutral. With new streamer with it's extreme attention to lowest possible latency, jitter has been diminished such that 005 now sounds far more analog like than previous. I'm sure adding the OpticalModule with it's superior clocking and improved internal power supply vs. genric FMC has bearing on this as well.

 

Also, have been experimenting with footers for 005. Previously used stock, Herbies devices, Aurios. Recently tried Stillpoints Ultra SS both with and without Ultra bases. The Stillpoints with ultra feet overbearing, didn't care much for this, Stillpoints minus bases, wow, an already increased soundstage size and image dimensionality due to new steaming setup was further increased in both of these, also image stability much improved, images locked in to unbelievable degree. The Stillpoints also split the difference between soft and metal ball bearing footers in tonality/timbre. Soft footers always make sound soft for lack of better term, Aurios always supply much greater spaciousness, open qualities, extension in HF, tighter bass. Stillpoints kept all the good aspects of Aurios while providing much more natural tonality/timbre. Aurios can impart a hard or metallic sound quality, the Stillpoints eliminate this, more natural. Comparison of Aurios vs. Stillpoints done post new streamer.

 

With recent focus on footers, recollections of hanging past cd players from ceiling via fish line were reanimated. So I will experiment this weekend with hanging 005 via high capacity monofilament fish line from industrial modular shelf system base I picked up from Grainger. Shelf system has 7500lbs load capacity, legs can be filled with sand/lead shot/kitty litter, placing this on fireplace hearth which my system sits on. Hanging cd players and dacs from ceiling always impressive outcomes in past, best footer is no footer. We shall see how this works vs very nice Stillpoints solution.

 

Finally, since new streaming setup I've been on buying spree, nearly $30k in vinyl and general system upgrades, yet the $3k 005 remains! I could have purchased any number of well regarded dacs with these funds, yet I kept the 005, should speak volumes about my regard for 005. Based on tons of research the only replacement dac I desire is Playback Designs MPD8, FPGA dac from perhaps best digital designer on planet, unfortunately $24K and going up, too rich for me.

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