New MDAC2 coming?
- Thread starter vinod_david
- Start date
Hi John,
With the near completion of the units your working on (hopefully).
I was wondering when you will be letting the people who signed up for the mdac2, when they should pay the first instalment, what method and exactly how much.
This should then get the people on the list thinking about putting money aside for the first instalment.
Other instalments will follow, as per your progress etc....
Regards.
With the near completion of the units your working on (hopefully).
I was wondering when you will be letting the people who signed up for the mdac2, when they should pay the first instalment, what method and exactly how much.
This should then get the people on the list thinking about putting money aside for the first instalment.
Other instalments will follow, as per your progress etc....
Regards.
Guys,
I think it's unfortunate to have two Mdac threads overlap. There should be two distinct threads
- one covering the original Audiolab units and any issues people may have with it;
- one covering Lakewest product, such as the Mdac2.
The current situation is confusing and must be time-consuming for you, John.
I think it's unfortunate to have two Mdac threads overlap. There should be two distinct threads
- one covering the original Audiolab units and any issues people may have with it;
- one covering Lakewest product, such as the Mdac2.
The current situation is confusing and must be time-consuming for you, John.
Cereal Killer
432
jackbarron
Chelsea, London
I don't think the 3db less noise is coming from the dual chip design, but rather from the improved analog stage?
Cereal Killer
432
Tiz all relative innit... the chassis on the MIRUS probably costs more than 2x MDACs. I don't mind paying for no compromises.
plus it exists!
Cereal Killer
432
Bit of both, this taken from Resonessences website:
The INVICTA Mirus variant substitutes a second DAC output module for the headphone module. Hence it cannot provide a headphone output, but it can provide a total of eight ES9018 DAC channels for each stereo output. (It uses eight DAC channels to drive both the XLR (balanced) and the RCA (unbalanced) analog outputs.) You will read of other manufacturers who have also discovered that every time the Sabre DAC output channels are paralleled together performance improves. It is a unique feature of the Sabre DAC that its outputs can be added in this way (without the need for potentially noisy intermediate amplifiers). Doubling the number of channels reduces the noise by 3db. However, Resonessence does a little more. Firstly, we use a circuit level implementation that distributes the left and right channels equally between the Sabre chips, this ensures perfect channel to channel matching. And secondly, we actually also parallel the AD797 output amplifiers so that they also have their noise reduced by 3db at the same time. This second level of connectivity in parallel extends to the regulators as well: their noise goes down too.
Cereal Killer
432
So does the MDAC2 or 3 or 4 or 5..... in the minds of believers.But in all honesty if the MDAC2 does come in within 95% of the MIRUS you'll all be mightily impressed.
misterdog
Not the canine kind
I see no comprmise in the MDAC chassis, indeed the case extrusion is built to an incredibly high tolerence.
sq225917
Bit of this, bit of that
Doubling the number of any dac chip gives you an extra 3db SNR, it's common practice, even my little $200 headphone dac with dual Wolfsons does it, it's nothing special to ESS. (Except that it can be used used to hide the left channel locking bug in their silicon).
All dacs sound the same, of course it will come within 95% ;-)
@misterdpog, yeh but it's not wastefully milled from solid....
All dacs sound the same, of course it will come within 95% ;-)
@misterdpog, yeh but it's not wastefully milled from solid....
misterdog
Not the canine kind
But in all honesty if the MDAC2 does come in within 95% of the MIRUS you'll all be mightily impressed.
I have little doubt that it will, and with the £ 3.5 K I have saved I may commission a hand built, work of art, case for it.
Cereal Killer
432
I have little doubt that it will, and with the £ 3.5 K I have saved I may commission a hand built, work of art, case for it.
Umm... you get what you pay for in life, either in cash, blood, or perspiration.. nothing in life is free!
Cereal Killer
432
Corrected!
Yes, but single ESS chip is already an 8 channel chip. So the trick you talk about is already there with one chip (even for XLRs). I expect the MDAC-2 will only utilize 4 channels of each chip... the advantage is then in less intermodulation between channels. Something like dual mono amps.
Cereal Killer
432
No, they'll be using 8 channels per channel.
sq225917
Bit of this, bit of that
AIUI it is johns intention not to use the left channel on both chips to allow him to sidestep the ESS left channel locking bug (in the silicon) and also gain some benefit from reduced 'whatever' across the die itself.
Is going dual differential with the output from two chips the same as stacking the 6bit process from multiple channels on the same chip?
Is going dual differential with the output from two chips the same as stacking the 6bit process from multiple channels on the same chip?