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kdoot

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kdoot last won the day on May 23 2012

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About kdoot

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    Digital devotee

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    Australia
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    Queensland

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  1. Can anybody recommend somebody who's expert with a soldering iron up in Qld? I'm thinking about ordering a set of upgraded transformers as per the PS Audio discussion linked below, but I have zero chance of installing them myself. Who can I hire with confidence to do a quality job with some delicate through-hole solder work? https://forum.psaudio.com/t/modding-the-directstream-dac/2680/381
  2. @DrSK Sorry for the slow reply. I don’t come around here often any more. I only had a single set of XLRs to begin with, so my first experience of the EC was with one set of XLR and one set of older single-ended, both from Mike. I had to wait a few days to get the second pair of Lenehan XLRs which is what I was describing in my earlier post.
  3. My first hifi amp was the C320BEE. I absolutely lusted over the Cyrus 8 gear, having been introduced to hifi proper by the nice bloke who happened to be a Cyrus dealer back when the 6's were current. Those little boxes can be magic and I've no doubt you'll enjoy this upgrade.
  4. Hey folks. I have had a DS DAC for something like 4 years now, and for the first 3 and a bit I ran it direct to power amp. I'm a fan of transparent clean resolving but not harsh or edgy sound, and I am not a fan of valves in general. Despite the DS DAC's volume control being actually lossless (though as discussed by one poster earlier, the musical signal gets pushed down relative to the DAC's own noise floor) and the output stage being nothing but direct taps from the output transformer driven by reasonably high current switching devices on the input side, I have ended up with a pr
  5. That’s gonna depend very much on the DAC it’s connecting to.
  6. Thanks @parrasaw you might be right about the "current delivery"... I always take things too literally. Also you prompted me to look at my sig and notice that I needed to update re the pre/power interconnects. Balanced all the way now. It is a system I enjoy immensely and Mike has played a huge part in it over quite a few years of its evolution.
  7. I don't know why current would be a problem. I've accidentally driven my ML5s hard enough through these cables that I hit max excursion on one of the woofers... everything still sounded amazing except for the almighty crack as the voice coil struck the rear of the driver.
  8. What's the objection to using a transformer? Our entire AC power infrastructure is based on transformers stepping down from 250kV to a nominal 230V. Electrically speaking there's absolutely nothing wrong with adding another step to 110V, regardless of how expensive are the items you'll be powering. OT... my first ever pre-amp is the one I bought from the classifieds here:
  9. Great write-up, thanks heaps. What’s the maximum rate supported by the Pi in this configuration? I’m currently limited to 192kHz PCM or DoP64 in my setup and accessing the higher speeds would be the main reason I’d consider switching to an I2S input.
  10. New set of balanced interconnects now linking the EC4.7 to my power amp. Holy wow this sounds beautiful.
  11. And it turns out... that’s because I only knew half the story! I got some foundational RF training as part of a Wi-Fi course and they never mentioned that their definition of decibel only applies to power, not to amplitude. You are correct. Thanks for prompting me to dig deeper. Wish I liked logarithms more.
  12. That gain is not unusually large. Each 10dB is 10x, so 100x is only 20dB and 1000x is 30dB. Most solid state power amps are in the mid to high 20’s and some crack 30dB of gain. What is very different though is the sensitivity. As you say, peaks on the order of 1mV instead of the hundreds or even thousands of mV that a power amp is designed to handle on its inputs.
  13. I only have the one EC item, but I have zero options about where to put it:
  14. So what are you using today, FP? I looked through your post history but couldn’t find the answer to that. Why did you sell the 4.7?
  15. Well I took a punt yesterday and based on nothing but specs and sparse reviews became at least the fourth owner of EC 4.7 pre-amp serial 100583. It’s my first Electrocompaniet experience and in fact my first ever pre-amplifier, having lived the “best pre is no pre” lifestyle for close to ten years with DACs directly into power amps, and integrated amps prior to that. 24 hours in, I’m loving it – even though I don’t yet have a second set of balanced interconnects to go from the pre to my power amp. There’s just more music here now, more depth in soundstage, more movement of the air
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