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In Reply to: RE: MQA vs HDCD posted by Jeff Starr on June 9, 2017 at 02:03:01
... MQA can encode any PCM rate because it's hierarchical, not just 24/192 or 24/176 only. They can even support DXD rates of 24/352.8k. In fact 2L's MQA test files and "Masters" album on Tidal are 352.8/24 encodings.
... PS Audio is not doing any MQA code work themselves at all. ALL MQA work it is being done by the South Korean OEM supplier they buy the Bridge2 board from; Conversdigital. In fact, ConvesDigital joined the MQA bandwagon and PS Audio merely hopped on along for the ride after the fact!... Don't believe any of the hyperbole put out by Paul McGowan.
Follow Ups:
I am not sure what "hyperbole" you're referring to.
But you are correct. The core module around which the Bridge II is built is from a South Korean company Converse digital. That's no secret. Never has been. We place that module at the core of the Bridge and then populate the balance of the PCB with memory and a Digital Lens to output to the DAC through I2S.
Converse, with our help, has implemented a number of features including Tidal, MQA, etc. We work directly with MQA on "tuning" the specific firmware version we use in the Converse module found in Bridge II because MQA requires it. They have a DirectStream in Cambridge and use their tuning methods to match DirectStream's impulse response. Converse then programs that into the module.
If by hyperbole you're referring to my many posts of how our programming efforts releasing Huron, the new operating system for DirectStream was held up by MQA programming, that is true. Our side is required as well as Converse. Remember, the Bridge has to communicate with the DAC and has to report its status to our front panel touch screen.
I am sorry you seem to feel there's some kind of BS or conspiracy to defraud our customers—which is simply not true. Hopefully this helps you understand what's going on and ferrets out the truth. I am always available via email for anyone with specific questions or needing help.
Thanks for the opportunity to respond.
For the record, I don't believe there is any BS or conspiracy.
What folks need to get through their heads, especially the MQA brigade, is that if you are going to support Tidal streaming, you are by default going to support MQA. It is a no brainer.
One comment if I may, I do find it a little off putting the number of firmware updates you have instituted. It seems excessive to me, and tells me that the final sound is a moving target. Just my two cents.
Your two cents are always welcome. The last firmware update we did, Torreys, was a year ago. Ted's been working hard for the last year making improvements and figuring out new ways to get better sound.
Without question you are correct. It is a moving target as are all DACs, which is why manufacturers that keep up with technology change models. The beauty of our system is that owners of our DAC get to upgrade for free.
But, it's clearly not for everyone. And, to be sure, not everyone upgrades either.
Thank you for the response and the clarifications.
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