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Valab NOS DAC - subjective listening and modifications
I had excellent results with this Memory Media Player which is free to try and around 100 to buy No Affiliation to company XXHighEnd - Index- r8833
- Post #1,065
- Forum: Dedicated Source Components
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Valab NOS DAC - subjective listening and modifications
Quote: Originally Posted by kamaths Talking of PSU upgrade, where can one order a teradak Dc 30 unit for valab nos Dac upgrade? Thanks in advance Google teradak dac , you'll find a windows live page with email address- r8833
- Post #1,041
- Forum: Dedicated Source Components
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Valab NOS DAC - subjective listening and modifications
Quote: Originally Posted by qusp I want to have the polar opposite to the Buffalo32; in that I would like there to be not only no oversampling or upsampling, but also no reclocking. or have you guys found that to be a good thing, rather than the jitter being embedded further into...- r8833
- Post #1,036
- Forum: Dedicated Source Components
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Valab NOS DAC - subjective listening and modifications
Quote: Originally Posted by MikoLayer Is PartsConnexion where you guys get Mundorfs from? Thanks a bunch, I really appreciate this! where are you located usa or canada ? here's a couple of places you can try in usa Audio Capacitors Capacitors from Madisound in...- r8833
- Post #947
- Forum: Dedicated Source Components
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Valab NOS DAC - subjective listening and modifications
I like the concept of no moving parts and for 130.00 this would a good experiment. If we can tweak the QA-550 like we did the Valab, we can make a so so sounding product awesome..google QA-550..some good comments. Will try the I2s connection with valab- r8833
- Post #918
- Forum: Dedicated Source Components
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Valab NOS DAC - subjective listening and modifications
Got one of these on order ..looks like a real nice transport for 130.00 shipped QA-550--SD Card WAV Digital Audio Player- r8833
- Post #911
- Forum: Dedicated Source Components
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Valab NOS DAC - subjective listening and modifications
russell, you can add 8 more chips but you have to change the I/V resistors to 180R, deal with heat sinking/ cooling of the dac chips and also the heat from the power supply because of the extra current- r8833
- Post #902
- Forum: Dedicated Source Components
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Valab NOS DAC - subjective listening and modifications
Quote: Originally Posted by tubes r8833, did you receive the sc944-05 transformer yet, was wondering what you think of it? been using the sc944-05 and I find it has a bigger sound stage and the bass is tighter than the pulse transformer...wait till you build a lightspeed it's...- r8833
- Post #883
- Forum: Dedicated Source Components
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Valab NOS DAC - subjective listening and modifications
slightly off topic ..I just built one of these passive pre's and this thing is amazing cost less than 100.00 to build ... google lightspeed LDR and read what people are saying.. no moving parts uses LDR's the control the volume DIY Lightspeed Passive Attenuator Rich- r8833
- Post #868
- Forum: Dedicated Source Components
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Valab NOS DAC - subjective listening and modifications
when I did the ssom I heard a fuller sound. Is this the distortion that rhodes measured? could it be like how solid state compares to tubes.- r8833
- Post #865
- Forum: Dedicated Source Components
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Valab NOS DAC - subjective listening and modifications
Quote: Originally Posted by krisno ... forget 4.7uf + 0.22uf, try 1.0uf jupiter and 0.015 ERO KP1832 ! They are cheap on ebay try 4.7 + .22 + kp1832- r8833
- Post #848
- Forum: Dedicated Source Components
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Valab NOS DAC - subjective listening and modifications
Damm! SC944-05 are the old ones.. I just got mine today. I googled scientific conversions and there is a lot of talk about the sc-944-05 ..didn't know they got updated. I should have called them to find out which was the best for the dac caps I use have installed rubycon ZA's in one and sanyo...- r8833
- Post #847
- Forum: Dedicated Source Components
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Valab NOS DAC - subjective listening and modifications
on the low end of the scale I made a digital cable using a sata cable. just cut the ends off and solder some rca's . Not too bad for $5.00- r8833
- Post #839
- Forum: Dedicated Source Components
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Valab NOS DAC - subjective listening and modifications
tubes, another transformer to try is the scientific conversions sc944-05..highly recommended at 16.00 each..they will sell samples Scientific Conversion, Inc. - Transformers and Inductors Rich- r8833
- Post #834
- Forum: Dedicated Source Components
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Valab NOS DAC - subjective listening and modifications
Rhodes54, I just replaced the russian .01uf input caps to the Vishay MKP1837's and I am hearing a clearer sound too. ..more snap and faster sound ..the russian caps are sluggish compared to the MKP's. Rich- r8833
- Post #831
- Forum: Dedicated Source Components
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Valab NOS DAC - subjective listening and modifications
Talked to teradak about piggy backing another 8 chips. He said its possible and need to change I/V to half the value..I'm gonna give it a try just need a new chassis and design a heatsink to cool the chips- r8833
- Post #820
- Forum: Dedicated Source Components
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Valab NOS DAC - subjective listening and modifications
Quote: Originally Posted by Bill Allen Maybe Teradac will make a 16 DAC chip version in the near future. Lets not push him ..I have too many dacs..3 valabs and a monarchy m33 modded by Stan Warren- r8833
- Post #819
- Forum: Dedicated Source Components
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Valab NOS DAC - subjective listening and modifications
hey Bill, what do you think about adding another 8 -1543tda chips? piggy backing each of the dac chips.. I/V resistor will need changing and reboxed Rich- r8833
- Post #810
- Forum: Dedicated Source Components
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Valab NOS DAC - subjective listening and modifications
Hi Newk Yuler, Just ordered a couple of samples of scientific conversion transformer sc944-05 at $16.00 each plus shipping..they will sell you samples but the web site says they don't..they also take paypal supposed to be the best transfomer Scientific Conversion, Inc. -...- r8833
- Post #796
- Forum: Dedicated Source Components
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Valab NOS DAC - subjective listening and modifications
thats a good price ..did you get them on sale? these work out to 1.57usd each VISHAY ROEDERSTEIN|MKP1837-310-161-G|CAPACITOR, 0.01UF, 160V | Farnell United Kingdom parts connection .99usd minus 20% sounds like it nickels and dimes but I bought 100 for various projects- r8833
- Post #783
- Forum: Dedicated Source Components
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Valab NOS DAC - subjective listening and modifications
hi Bill, wife has digital camera and she out of town for a few days ..check out the link picture #5 shows wima caps bypassing smd's Rich CD DAC Lampucera lampizator- r8833
- Post #781
- Forum: Dedicated Source Components
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Valab NOS DAC - subjective listening and modifications
nice tweak for those who didn't swap out the 8 smd dac chips. I bypassed the smd caps with vishay-roderstein MKP-1837 caps and the sound is much more airy and transparent..cheap to try http://www.partsconnexion.com/capaci...lm_visrod.html also bypassed the 4.7 cap with these too Rich- r8833
- Post #777
- Forum: Dedicated Source Components
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Valab NOS DAC - subjective listening and modifications
K, I got some super duper magic caps for sale that will transform your Dac ..$200.00 each ,..cash only- r8833
- Post #759
- Forum: Dedicated Source Components
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Valab NOS DAC - subjective listening and modifications
you're right ..I did mine wrong- r8833
- Post #733
- Forum: Dedicated Source Components
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Valab NOS DAC - subjective listening and modifications
Hi pat, I think you may have incorrectly installed transformer. or I could be wrong http://ww2.pulseeng.com/products/datasheets/T601.pdf- r8833
- Post #731
- Forum: Dedicated Source Components