KECES DA-151 Mk2 Unveiled! Ready for ordering/Shipments NOW!

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Zyca

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HEAD-FI REVIEW PLEASE CLICK HERE:REVIEW: Keces DA-151 DAC 800+ hours burn-in (This review is for the older DA-151)

Computer Audiophile User Review PLEASE CLICK HERE: REVIEW: Low cost, high impact DAC (This review is for the older DA-151)

HEAD-FI user review of DA-151 PLEASE CLICK HERE: REVIEW: Mini review of Keces-151 (This review is for the older DA-151)


Please note the special offer for combined purchase of cable and our KECES products.  Details below at the end of this page!



Just like our original DA-151, the new DA-151 Mk2 allows your computer to output high quality analog audio that surpasses anything in its price range, and gives costlier competitors a very good run for the money.  The main objective in our Mk2 update includes:


  • Enhanced power supply circuit, this improved power supply can make our DA-151 sound even cleaner with lower noise and better sound stage.  The improvement is actually measurable via RMAA with EMU 1212M
  • Higher Op-Amp voltage, DA-151 used +/-12V for its op-amp, DA-151 Mk2 upped it to +/-15V for even better performance and dynamic control/power. (If you want to try other op-amps, please make sure they can tolerate +/-15V first, op amps like AD8610 cannot be used or the op amp will likely be damanged.)
  • Full DC coupled circuit, no coupling capacitor, no DC Servo.  Allows the DAC to show its full potential with life like low frequency response and a very detailed and neutral tone across the entire frequency range.
  • Larger circuit board with layout even further optimized than it was with DA-151.
  • Modular power input board like DA-152/DA-131.1 is now used with DA-151 Mk2, allows easy voltage switching and allows IEC socket to be upgraded to high quality IeGO gold plated copper or pure silver sockets.
  • More powerful transformer, same as the one used for DA-152.


Of course, the original goodies from the DA-151 is also kept and some of them enhanced too.


  • Neutral sound signature, open sound stage, excellent instrument imaging, great detail and transparency, these good traits are all kept and enhanced further in DA-151 Mk2 with the new all DC circuit and the new power supply.
  • Listenability is also retained, while some may think that lots of detail and neutral sound is sterile, but we don't make our DA-151 Mk2 like that.  We make it so that it is involving, enjoyable, with details that are presented in a non-intrusive way.  After all, what fun is music when you cannot allow yourself to enjoy it for hours at a time?
  • Fully independent oscillator is now located even closer to DAC chip for more optimized circuit path.
  • Isolated oscillator power to prevent power rail pollution.
  • Same great sounding Burr-Brown PCM2702 DAC chip with National Semiconductor LME49710 op amps
  • Same high quality audio grade or military grade component are used through out the entire DAC.
  • Same attention to details, excellent workmanship through out the unit.
  • Same dimension: 215 ×205 ×80mm (W*L*H)



The results?
  • Sound staging and the location of the instruments now sounds better, slightly bigger sound stage with more precise location of instruments can now be easily heard.
  • Slightly more transparent, increased detail and clarity, this is especially true for low frequency sound, it is now even more life like while the rest of the frequency band also enjoy a good increase in detail and transparency.
  • The original DA-151 already sounds great, and now DA-151 Mk2 just continue the tradition while implementing improvements that provides the best bang for buck for our customers.



Installation? This could not be easier with USB DAC, just plug into an USB capable computer (Mac OSX/WINDOWS 2000/XP/Vista, or a recent version of Linux) and it will be instantly recognized and used.  Virtually no effort is required!




The front, exactly the same as the original DA-151:




Back, simple and neat with the new power input module:




Inside view:

This inside view photos is dedicated to component peepers, engineers, tinkerers, curious minds, mythbusters, modders, hackers, viewers, and those who can't stop themselves from taking the door knob apart and put them back together. ;)  (that's me too... :) )



What's inside the box?
KECES DA-151 Mk2 * 1
High quality USB 2.0 Hi-Speed cable * 1 (DA-151 Mk2 is USB 1.1, but we include hi-speed cable due to better cable quality.)
Region specific power cable (will include plug adapter if the region needs it) * 1



Datasheet Links:
More Details about the DAC and OP-Amp we used than you ever need to know: ;)
BurrBrown's PCM2702 high performance, low jitter USB DAC
National Semiconductor's LME47910 ultra low distortion, low noise OP-Amp (literally record breaking)


HEAD-FI REVIEW PLEASE CLICK HERE:REVIEW: Keces DA-151 DAC 800+ hours burn-in (This review is for the older DA-151)

Computer Audiophile User Review PLEASE CLICK HERE: REVIEW: Low cost, high impact DAC (This review is for the older DA-151)

HEAD-FI user review of DA-151 PLEASE CLICK HERE: REVIEW: Mini review of Keces-151 (This review is for the older DA-151)



Pricing, Shipping/Handling Charge:  (Double boxed for better protection)
Price for one DA-151 Mk2: $250 USD + shipping
Price for one DA-151 Mk2 with GU-R301 gold plated copper IEC socket upgrade installed: $290 USD + shipping
Price for one DA-151 Mk2 with AG-R301 Silver IEC socket upgrade installed: $340 USD + shipping


We ship via EMS parcel service, it is takes an average of 4 days to arrive in most major cities in Europe and United States.

US/Canada/Europe/Russia: $45 USD
Asia/Oceania Regions (exclude Russia): $35 USD
South America/Africa Regions: $55 USD


IeGO IEC Socket upgrade information:

Both socket will enhance the detail and dynamics, but both enhance in a different way.

GU-R301 Gold plated 99.99% pure copper IEC socket not only enhance the details and dynamics, it also makes it sound warm and smooth, the high quality processing done on GU-R301's gold plating process also makes it sound more refined and all without losing a bit of the details (Well, it actually enhances the details when compared to the original computer grade socket).  GU-R301 is warmer sounding than AG-R301, if you are looking for warmer sound signature with more flair, please choose GU-R301 over AG-R301.


AG-R301 99.99% pure silver IEC socket will enhance dynamics and detail even further than GU-R301, and as with very high quality silver, the sound is smooth, detailed and quite neutral.  It does not have the "silver harshness" normally associated with low grade silver or thinly plated silver cable and connectors, high quality silver sounds smooth, with proper thickness, very detailed and open.  AG-R301 is neutral sounding and more detailed with better dynamics than GU-R301, if you are looking for that, please choose AG-R301 over GU-R301.  Please note that while GU-R301 is warmer, AG-R301 is by no means cold, it is very neutral.





SPECIAL COMBINED SHIPPING & NEW DISCOUNTS!


1.5M L70530 with 8055 unplated copper plug $65
1.5M L70530 with 8065 silver plated copper plug $95
Add $15 for 2M version.
Shipping for L70530 cable is only $10 when combined with your KECES order.  (Regular shipping charge: $25USD)

New lower price for Christmas on L80229 to celebrate the season as
well as celebrating lower material and energy cost. :)
1.5M L80229 with 8075 rhodium plated copper plug $180 ($40 discount)
1.5M L80229 with 8085 gold plated copper plug $160 ($30 discount)
1.5M L80229 with 8095 rhodium plated IeGO 99.999% pure silver plug
$280 ($60 discount)
Shipping for L80229 cable is FREE when combined with your KECES order.  (Regular shipping charge: $25USD)

For more details on the cable, please check out
http://www.head-fi.org/forums/f21/iego-power-cords-review-all-five-333001/
for a detailed review.
« Last Edit: 2 Feb 2009, 04:04 am by Zyca »

hadden

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Re: KECES DA-151 Mk2 Unveiled! Ready for ordering/Shipments NOW!
« Reply #1 on: 21 Jan 2009, 02:17 pm »
Do you know the jitter measurement on this?

Thanks,
Paul

Zyca

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  • Posts: 175
    • Acoustic Fun Web Store!
Re: KECES DA-151 Mk2 Unveiled! Ready for ordering/Shipments NOW!
« Reply #2 on: 21 Jan 2009, 07:58 pm »
Do you know the jitter measurement on this?

Thanks,
Paul

For a pure USB setup that does not have exposed digital signal, I don't think we can measure the jitter without doing major surgery.  From a pure listener point of view, jitter improvements are often heard as an improvement in sound staging and finer details being better revealed with larger sound stage. :)


Thanks

David

jeangiono

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  • Posts: 4
  • Puget Sound
Re: KECES DA-151 Mk2 Unveiled! Ready for ordering/Shipments NOW!
« Reply #3 on: 30 Jan 2009, 01:27 am »
These dacs look really nice, but I need an optical input.