The DA-131 had received rave reviews and applauses from customers and reviewers alike, most praise it for its excellent neutral tone, with excellent bass, mid range and treble. Some praise it for the very ear friendly sound, where the "digital harshness" is nowhere to be found. Noth to mention the smooth yet very detailed sound with good sound stage can be enjoyed for hours and hours without fatigue.
We have thought hard as we deplete our stock of DA-131, how should we improve it? How and what to update without loosing the excellent performance that we get from the original DA-131?
Well, we did three things make DA-131 into the new DA-131.1
#1) We made the popularly requested LME49710 Op-Amp upgrade as standard equipment on DA-131.1, this further increase the details and give it an even more neutral, less laid back feel. We never heard one customer wanting to switch back to OPA604, thus we feel it is quite a safe bet.

Not to mention it actually improve all our RMAA test result by 1dB for the better in almost all tests.
#2) We added an modular power board, customers who moves from country to country will no longer have to open up their machine to change voltage, just flip that red switch in the back to the local voltage, and you are all set! In addition, we upgraded the original Bel fuse to the even better Wickmann slow blow ceramic tubed fuse.
#3) We now have two upgrade options available with the modular power board. At the time of purchase, customer can choose to upgrade their IEC power socket to premium IeGO 99.99% pure silver socket or gold plated 99.99% pure copper socket. Both will improve the detail and dynamics of the DAC, in addition the gold plated copper socket provides a warm and refined sound, while the silver provides even better dynamics, detail and sound stage.
Front view, the modular power board and its fuse can be seen on the top left corner of the unit.

Picture below shows DA-131.1 with the GU-R301 upgrade. (Click for larger version)

Pricing: $330 USD plus shipping (Standard computer grade IEC power inlet).
Gold plated copper (GU-R301BU) upgrade is $30 extra.
Pure unplated silver (AG-R301BU) upgrade is $90 extra.
US/Europe/Russia: 45USD
Asia/Oceania Regions (exclude Russia): 35USD
Africa Regions: 55USD
As before, buying IeGO power cable together with DA-131.1 or DA-151, and receive discount combined shipping!================OLD POST BELOW KEPT FOR YOUR REFERENCE===============
After the Clear top design on the previous KECES USB DAC, we are proud to announce that we are ready with our next generation of styling design with a SPDIF DAC. Allow me to introduce, KECES DA-131:
BASIC specs:*Fully supports
24bits/192KHz with Cirrus Logic's CS8416 receiver IC, unlike most DACs that is restricted to 24bits/96KHz due to the use of CS8414, even if they had used a 24bit/192KHz capable DAC.
*Supports both TOSLINK optical input and Coaxial RCA input, we use CS8416's internal signal select feature instead of the noisy/jittery mechanical switch or relay for signal selection. The switch you see in the back is simply for ordering CS8416 to read which of its input.
*Audiophile Grade
Burr Brown PCM1793 DAC IC and two BurrBrown OPA604 as output filter OP
*
NO SIGNAL COUPLING CAPACITOR ANYWHERE in the analog signal from the DAC all the way to the RCA connectors. Ensuring the highest quality sound with no capacitor in the signal path to color or change the sound in any way.
*Highly regulated and independent power supply for each section of the DAC and OP, fully shield each section of DAC from interfering each other.
*Audiophile/Military Grade Resistors and Capacitors, all in the name of higher quality sound.
*Presentation Grade fit and finish, inside and out. Instead of showing it all for everyone to see as in our USB DAC, we have elected to use a more subtle approach this time. We decided to use a tinted acrylic to show just enough of the inside, but not too much as to make it look 'busy'.
*High Quality gold plated RCA connector with Teflon insulated Silver plated copper wire.
*World Voltage Compatible, switchable between 100~120V and 200~240V
Price: DA-131 is no longer available, original post kept for reference only. Please see above for DA-131.1
Shipping/Handling Charge: (To be confirmed once the packing box had arrived)US/Europe/Russia: 45USD
Asia/Oceania Regions (exclude Russia): 35USD
Africa Regions: 55USD
More pics:

