ANK these days sources them somewhere else. AN UK uses in-house made I/V transformers. Other difference is the I/V transformers (metallic cans) between dac board and output board. But outside of those it's 1:1 same schematic as in AN UK finished products. Likely again no sound difference there, just easier to build and takes less space in the chassis. You can also see this by googling pictures of each.)ĪNK just uses inferior mains transformer and choke (not AN UK house made) and places the choke behind mains transformer instead of between mains transformer and PSU board (no sound difference, just for easier position for builder of the kit) and have moved to Mundorf caps (instead of AN UK Cu or Tin) in the PSU after the split with AN UK.Īlso minor detail is that the ANK made small change in how the two regulators are placed: ANK these days connects them to cooling fins, connected directly to the board, while AN UK still has them placed off-board, secured into the chassis. (I've built ANK dac 2.1 and totally rebuilt ANK 元 Phono that uses that PSU, and have owned AN UK Dac 2.1x/II Signature, AN UK Dac 3.1x/II and had M2 RIAA on home loan. The PSU part in other hand is AN UK designed and exactly the same as in current AN UK Dac 2.1x/II, AN Dac 3.1x/II, AN Dac 4.1x and AN M2 RIAA. If they would've not meant to, the easiest and most cost effective way would've been just to supply ANK with original AN UK dac boards like they did with M2 PSU (see below) It might have been designed by AN UK, during the time AN UK and ANK were more closely tied, but it was obviously deliberately dumbed down design for ANK use. easiest to spot is that row of LEDs in the ANK dac's dac portion that is not used in AN UK dac 2.1x/3.1x boards. It has the same input transformer, Dac chip and receiver chip yes, but completely different layout. Not sure how this one compares to the Philips.Ĭlick to expand.I have to correct you there: basically the dac portion of ANK dac 2.1 is the one part that is definitely not same as in AN UK built Dac 2.1x. The 2.1 has provisions for an optional USB input, but it appears selecting between the inputs is done on the rear of the unit.Īlso of interest to me, it seems that the more expensive Audio Note DACs sold thru AN dealers also use the Analogue Devices AD1865 R-2R chip as well. This DAC from Audio Note also has a USB input and the ability to switch between the two inputs from the front of the unit. The Audio Note 0.1x DAC uses the Philips TDA1543 R-2R chip and the 6111WA miniature dual triode tube for the output stage. The DAC 2.1 from Audio Kits uses the Analogue Devices AD1865 R-2R chip with four tubes: The biggest difference are the chips used and tube(s). If forced to choose one of these two DAC options, which one would you go with and why? Both are similar in price, though one may be able to haggle a bit with the 0.1x as it is sold by AN dealers opposed to direct from ANK for the 2.1. Takman Non-magnetic Metal Film Resistors.This DAC in a smaller footprint with 6×4 rectification, IV transformers, Digital board, 6922 tube output stage makes for an incredible DAC platform for DIYers world wide! Specifications Output Tubes The 6×4 power supply we developed for the L1 DAC and L1 Phono uses the 6×4 7 pin rectifier tube which is baby brother of the 6X5 used in the M2 power supply found in our L2-L4 products. The line stage sounds very undigital and has a lovely natural sound. There are many 6922 tubes available, many being classic 50’s new old stock. An efficient and effective line stage to compliment the digital and power supply sections of the DAC 1.1. The 6922 output board has Takman non-magnetic film resistors and Audio Note Tin Foil Capacitors. I/V Transformers are used to maximize the energy transfer during the Current-to-Voltage phase of the conversion resulting in increased dynamics. Our I/V transformers were specially designed by Audio Note Engineering to provide an affordable yet highly effective transformer for the DAC 4.1. The method is perfect in its simplicity and is reflected in the sound quality. Rather than using feedback loops and high frequency oversampling clocks to produce an ‘approximation’ of the digital data as Delta-Sigma types, an R-2R DAC will turn on each required bit in the digital ‘word’ and the exact amount of current will flow from the chip to reconstruct the analog waveform. Delta-Sigma DACs and R-2R resistor ladder DACs are quite different. Using the Audio Note DAC strategy calls for a Resistor Ladder DAC architecture as opposed to the more common Delta-Sigma computer processing style DAC. R-2R v Delta-Sigma – Things to be aware of when choosing an audiophile level DAC
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