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FS: Mint Modded Hi-end LKS DA-004 DAC WITHDRAWN FROM SALE


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Item Condition: Mint
Shipping Options: Shipping is included in price.
Suburb or Town: Dilston
State: TAS
Payment Method: Bank Transfer
Reason for selling: Surplus to requirements

Further information: 

I have two of these but am parting with one.  This is the best DAC I’ve owned and transforms good CDs to sound as good as SACDs and other hi-rez.  I’m often surprised at the AQ being heard and find it is merely CD quality, not Hi-Rez.  One acid test of a DAC;s ability to translate digital to pristine analog is a harpsichord recording.  Most DACs turn this into a jangled mess but the LKS transforms all the complex harmonics into beautifully sounding music.

This LKS was modded by Rick Schultz and was imported from the USA so comes with a quality step down transformer which effectively isolates the DAC from power line nasties.

I’ll copy and paste below more info on this DAC gleaned from Rick Schultz net posts and please contact me for any more information.

 

As far as I know this is the first and only DAC in the world with two ESS9038 DAC chips running in dual mono. But it has so much more: discrete shunt regulators for the output stage, completely discrete output stages (no op amps), serious rectifier diodes, two 40 watt transformers, I2S input, digital volume control, DSD512 capable, Furutech AC inlet, 7 digital filter choices, Cardas output jacks, serious parts, etc. Even the remote is a hunk of aluminum. This thing is huge.....and it sounds amazing....even stock. The simple mods I do tfor a few hundred dollasrs ake it to another level. If you are using anything besides usb it sounds best with the usb board removed. I personally think that usb should always be done externally with a modded Singxer running I2S into the DAC.

A single ESS 9038 DAC is essentially 4 ESS9028 DACs in parallel. So running two of them in mono mode means you essentially have 32 9028 channels in parallel. The more DACs in parallel the better the resolution....this is a know fact.

 

Taken awhile but finally did some more terrific mods to the LKS and it is now clearly the best DAC I have heard.   Amazing what changing and modding a few parts can do.  Simply stunning!

I have a friend in Pocoima who has one of these and we have been tweaking them at the same time.  He has a great expensive turntable system  and he says that playing 16/44 from his Beatis server through coax and then through modified IFI spdif Ipurifier and then through modded LKS is at least as good as his turntable system!!  No upsampling....nada....just great sound.

The Basic mod I have worked out makes a serious improvement in involvement, reality, dynamics, low level detail, imaging, depth, air, lower distortion......well, basically everything.  I do mods to the AC power, the DC power, output stage filtering, all output stages, the spdif type inputs, etc.:

1.     Remove fuse distortions.
2.  Remove all steel from around the transformers and remount transformers on pieces of wood.
3. Twist secondary AC wires.
4. Apply Graphene contact enhancer on AC connectors on board.
5. Damp all rectifier diodes with constrained layer damping material
6. Damp all heatsinks with constrained layer damping material.
7. Remove all coupling caps on the spdif inputs and replace with custom pure copper wire in cotton (listened to for directionality).
8. Shorten the signal path on the unbalanced outputs and use our custom wire here.
9. Change filter caps in output stage to better ones
10. Change all compensation caps in all output stages to better ones.
11. Damp certain power supply caps
12. Remove steel leads from film caps on 3.3V power supply to DAC and orient caps in proper direction (outside foil to ground).
13. Properly orient poly caps on output of regulators for output stage.
14. Change IV resistors to high quality ones.
15. Remount output transistors in IV stages and bend them forward so they are no longer close to the power supply caps and wrap those power supply caps with gold reflective tape to further reduce their temperature.  The transistors in the stock LKS are too close to the caps and can cause them to burn up within a year if left on all the time.  The very latest LKS DACs have the transistors mounted underneath the chassis to eliminate this problem.  My solution works as well.


Photos:

 

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Edited by Tassie Devil
Changed my mind about selling it
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