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bhobba

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bhobba last won the day on November 30 2014

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About bhobba

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    Seriously DAC Addicted
  • Birthday 17/11/1955

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    Redland Bay
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  1. Yes Clay's DAC's work with Windows - you just have to download the appropriate driver. But I dislike it personally because sometimes during a big widows update it seems to disappear. That's why I use a Mac. It doesn't often happen though - but when it does it is a bit annoying. Thanks Bill
  2. Hi Again all. Just chatting to Mike to see how close they are to hearing. Not quite yet. But he explained the difficulty with the crossover was ensuring the breakup was tamed and it remained phase coherent through the crossover. Traps muck about with the phase. You often hear how phase coherent speakers sound better - Mike has checked that many years ago and the critical thing is phase coherence throughout the crossover - outside the crossover its not so important. Thanks Bill
  3. People may be wondering, since this is a well known high quality driver, why Mike didn't try it before. The issue is taming the breakup in the crossover and it not having audible effects. Seas recommends a devilishly clever fairly simple crossover in their DIY designs eg: https://www.madisoundspeakerstore.com/mtm-speaker-kits/new-thor-kit-pair/ It's a crossover and trap to tame the resonance all in one. But other high quality speaker designers like George Short claimed he could always, doesn't matter how hard he tried, hear the trap - and traps tend to 'drift' after a while, making the situation worse. It took George years to design a crossover he was happy with, and the same with Mike when building my speakers. Massive amount of R&D. But Mike has done it now so its time to make use of his research. Thanks Bill
  4. I have been at a number of comparisons of Clay's DAC's. They often beat DAC's costing a lot more. Value for money nothing touches them. Thanks Bill
  5. Yes. Sorry about that. Damn this Covid - I would normally hear it as soon as Mike has finished, but it's fingers crossed at the moment. Thanks Bill
  6. I have a TT2. IMHO that's what to get because the output is 18W so you do not need an amp. I also have M-Scaler, but bang for buck the TT2 is the go. Because of Covid I haven't had a chance to really put it through its paces, but had a good listen just before Covid really hit and it was the best DAC I ever heard driving speakers directly. Thanks Bill
  7. Still at Mike's Covid playing havoc with getting stuff installed, listening etc. Rawl has a lot of work backed up and hasn't time to install them at my place. Besides both Mike and me would like them down there to compare to the new speaker he is building. Thanks Bill
  8. Hi All Just rang Mike and he said he will be posting soon. He is working flatout on these and will have them finished in not that long - but no firm date yet. He has done some accelerometer measurements and this speaker is even less inert than my 'prototypes', which were the most inert speakers Mike had made. But he found there are slight differences between each driver and the individual tuning he always does will be important. The crossover is a little different to my Magnesium Limiteds - but not a lot. Anyway as I said Mike will do a post when he can - I just promised to do one to get the latest out there. Thanks Bill
  9. I have written a lot about MQA and Clays DAC's in the past. Just to recap here is the skinny. When they convert a recording to MQA they determine the frequency above which its all noise. Bits are chucked away if that frequency is above 48k to ensure its 48k. If it's all noise then only noise is chucked away. Then later when played back they guess at the bits chucked way. Of course if it was all noise above 48k then no guessing is required. This chucking away and guessing is actually a downsampling and upsampling filter pair, called 'folding' by MQA, and MQA has tons to choose from. They analyse the audio to determine the best one to use and transmit the one used with the audio. You can do an internet search and get the gory detail if you like - but it's not really important. The important thing is when they convert it to MQA very few recordings, I seem to recall less than 1 in 1000, have any significant frequencies above 48k, so the filter used simply chops it off at 48k. Players like Audirvana that I use output the 48k from MQA, so except in very rare cases it's the same as being played by a MQA DAC anyway. Bottom line - IMHO its not worth worrying about. Thanks Bill
  10. I think a GTG is needed for that one. I have heard differences but thats just me - I am as easily fooled as anyone else. Thanks Bill
  11. I don't care about looks. Will see how it goes against the Magnesium's (which have looks any other half would be happy with) you made for me, and if better you have another customer, other than you of course. You may suck me in again to get another of your speakers you so and so. Thanks Bill
  12. I got a then state of the art subwoofer from Martin Logan to go with them. It's not quite SOTA anymore, but was shocked at the bass coming out of these things. You have to hear it to believe it. No subwoofer need for me anyway. IMHO the bass is better than ML2's. Mike's working feverishly during the Coronavirus outbreak on the new speakers and we may end up with GTG having the ML5, ML2, these Magnesuim's and the one Mike is working on. Thanks Bill
  13. Hi All I think Mike is a bit busy right now. He said he wanted to a post about the new speaker he wants to design, but as can be seen he hasn't yet so I will ring him Monday. Thanks Bill
  14. Radiant ebony. Mike made a special stand containing the external crossover on a special spring platform he uses in all his speakers these days. When he rang me to tell me he had completed tuning and burning in, he said he was very impressed with the final result, so impressed he wants to design a speaker using the new SEAS magnesium driver coated with Graphene that helps with the breakup that is very difficult to control in the crossover. It took Mike many tries over a number of years to get it just right. I think Mike can comment on anything else. My speaker will be down at Mike's so anyone can hear it. Anyone got any ideas on when to hold the GTG? Thanks Bill
  15. There are some pictures here: Thanks Bill
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