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About Keith_W

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  1. Sorry for the very late reply. I don't look at this forum very much these days. The answer to your question: you will need a DAC for every channel that you drive. For example, if you have a pair of speakers which have four drivers each, you will need 8 channels of DAC (i.e. four 2 channel DAC's). Having said that, it is a very bad idea to use four 2 channel DAC's because all their clocks need to be synchronized / slaved to a master clock. There are not many DAC's which accept an external clock, and even if you find them the cost might be prohibitive. It is easier and cheaper to use an 8 channel DAC in the first place.
  2. Come to a halt for now. I am doing some extra work to buy new toys
  3. I know I remember asking you about it a couple of years ago!
  4. Thank you so much Geoffrey! I have been waiting for this for a couple of years.
  5. Speaker market value = $35,000. Acapella High Violon.
  6. Interesting project you have there, Pieter. If you want ultimate silence, the best way is not to have any fans at all. My PC is built from a Streacom FC10 case which has an integrated heatpipe solution. Powering it is an Uptone Audio JS-2 LPSU. The downside of going this route is limited cooling (max of 95W TDP for the Streacom), inability to cool a video card passively, and limited power from the LPSU. In the past I did consider building myself a custom water cooled monster PC with lots of radiators and slow turning fans, but I was put off by the sheer complexity of this project and I did not want to touch water cooling again. I have played with water cooling in the past and it was a nightmare when it came to PC maintenance, so never again. As for those AIO solutions, I have been running a Corsair AIO water cooler in my main workstation for years. I assure you that you can't hear the pump. What you WILL hear are the fans. My advice would be to find the biggest radiator you can get your hands on and install slow turning fans.
  7. There is one very good reason I won't use Roon. It is horrendous with Classical music. I tried Roon a few years ago, and noted its behaviour in the screenshots posted below. I recently brought a HDD full of music to a friend's place (where he is running the current version of Roon) and noted the same behaviour. I want to use Roon because of its integrated Tidal and HQPlayer support. But if it fails at it's most basic task (cataloguing and presenting music in a way that I can find it), it is a non-starter. In fact, Roon is unique among players in that it is the only player that makes a complete mess of your Classical collection, regardless of whether you have the metadata tagged correctly or not. This is what I am talking about: This is from a 60 CD boxed set of complete Bach cantatas by Gustav Leonhardt and Nikolaus Harnoncourt. I ripped each CD into a separate folder (named CD 1, CD 2, and so on), and tagged each Cantata by name. Roon recognizes each CD as an "album" and presents you with a screen like this. It's impossible to select which one you want given that all have the same cover art and name. What's worse, the albums are arranged in alphabetical order by default, so you might get CD 3, then CD 41, then CD 6. Yes I know that I can force Roon to arrange it in the correct order but that takes a couple of clicks to do it. And even then it's still a crap shoot. If you have a massive collection of Bach as I do, try doing a search for "Bach". Welcome to your 2600 pages of Bach, where each track is listed as a separate "song". If you look closely, you will see that once again it is arranged in a completely random way with no rhyme nor reason. Good luck looking for the work that you want, it will take you till next weekend to flip through 2600 pages of "songs". Leave it to its own devices, and it will try to play you one track of Wagner, one track of Schubert, followed by Arvo Part. Nobody who cares about classical wants to listen to music that way. Every other player does not do this. Only Roon.
  8. My speakers alone were $40k. Add in the rest of the system and it's close to $100k.
  9. Keith_W

    JRMC 24?

    mourip try using eos to control JRiver instead. Link: https://play.google.com/store/apps/details?id=com.lenworthrose.eos As for JRMC 24, I haven't tried it. I am still on 21. Is there a changelog somewhere?
  10. There are 3 ways you can get DSP in your speakers: 1. Purchase a speaker with DSP built in. Examples - Kii Three, B&O Beolab 90, Meridian 9000. The advantage is that there is little to no setup required. The disadvantage is usually lack of fine room correction. You can choose between a few modes (e.g. proximity to wall, bass level, etc) and that's it. Also, if it matters to you, you don't get to choose your own amplifier and you are stuck with whatever the manufacturer installed. The next two require either conversion of a speaker from passive to active, or DIY your own speaker. 2. "DSP in a box", e.g. MiniDSP and DEQX. The advantage is that you gain more control over your speaker and you have room correction. You can spec your system to also correct for subwoofers and integrate the whole system. You can also BYO amps which is important to some people. The disadvantage is the learning curve. You have more opportunity to screw it up and end up with an awful sounding system. The other disadvantage is the relatively low processing power of these units, which limits the amount of correction you can do. Having said that, these units are usually powerful enough to be used in most systems. That is, unless you have many subwoofers and you need very long delays to correct multiple speakers. 3. PC based DSP. In this case you use one software to generate filters (e.g. Acourate, Audiolense, Dirac, REW) which are then hosted by a convolution engine (e.g. JRiver, Acourate Convolver, Roon, HQPlayer). The advantage is that you are only limited by your skill and your computer's processing power and you can make really elaborate filters. You can even do things like MSED (Mid-Side encoder-decoder) and thus play with your soundstage, and even amazing things like a virtual double bass array. If you have a really complex system with multi-way speakers and multiple subs this is the best way to bring them all together. You can build the PC to be as powerful as you want, you are no longer limited by the hardware. Also, you can bring your own DAC's. The disadvantage is the sheer complexity and the learning curve, and thus you have even greater opportunity to screw things up. I have been running PC based DSP using Acourate and HQPlayer for some years now. To be honest thus far it has been a sideways move for me with some benefits (better coherence) and some downsides which I have been slowly chipping away at. The filters I make now sound so much better than my earlier efforts, but I am not quite there yet. More refinements will follow as I continue to climb the learning curve. Best yet, I have already spent all the money I need to spend. My system improves every month due to refinements with my technique, and these improvements are an order of magnitude greater than a DAC change (believe it or not!), let alone tweaks which I can barely hear (e.g. audiophile SATA cables). If you are an inveterate tinkerer of your system, and you actually enjoy making differences that really matter, going down this route will give you an immense amount of satisfaction. It was a giant leap of faith going down this path, but it has been totally worth it so far.
  11. Let's see if they follow the usual Apple playbook: - proprietary power connector - no cables, and no ports otherwise - overstyled, underperforming, and unbelievably expensive. Will offer half the performance at twice the cost. - they will appropriate existing technology and claim they invented it. - they will patent its shape even if the shape has been used before - made from the blood of hundreds of dead underpaid Chinese sweatshop workers - will feature some kind of marketing buzzword (if it was Retina for their displays, maybe it's going to be Cochlea?) - will have some kind of fatal flaw that renders it useless for its intended purpose - will only work with Apple products, and even then only if you buy a dongle - it will be "revolutionary" - it will have mandatory non-reversible firmware updates that halve its performance every year - they will sue Sennheiser, Beyerdynamic, Grado and others claiming that they copied their design. And dozens of slobbering zombie Apple fanboys will queue for weeks outside their local Apple Temple for the privilege of being ripped off by these hucksters.
  12. This is exactly it. I get to meet plenty of different people from all walks of life in my profession, and men are all the same. They obsess over their hobbies, be it carpentry, model building, duck shooting, fishing, cars, motorbikes, bee keeping, boating, calligraphy, art, etc. If you show a tiny bit of interest they can rabbit on for hours about the finer points of their particular hobby.
  13. I'm curious what OS people are using for their audio PC. I know some of you have complicated setups such as the control PC being Mac and the rendering PC being Windows. If this is the case then vote for both. To keep things simple I have not created multiple choices for the different flavours of Windows.
  14. I would agree. When Gardiner is on, he is on. Some of his works have a freshness and life when others can be staid and serious. But sometimes, a bit of restraint is in order. His version of Magnificat is too fast, and his rendition of Mass in B Minor lacks gravitas.
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