USB to simultaneous data or I2S converter, series 2
Audial USB interface second release. Now offered as both module and ready made device.
Digital, Projects
Digital, Projects
USB to simultaneous data (or I2S) board
Audial quality USB interface. At one side it connects to PC via USB port, and on the other it outputs “raw” PCM signal, in simultaneous data or I2S form.
Digital, Technical
Transformer coupling pros and cons (in a nutshell)
Purely sonically, transformer coupled output has more calm presentation, with more quiet background, and somewhat more precise soundstage. On the other hand, transformers can lack some definition at the most bottom end. Still, possible benefits and shortcomings depend also on the environment.
Amplifiers, Technical
Cermet potentiometers
Audial Model A uses cermet potentiometer as premium part. The reason is simple: cermet is sonically clearly superior to any other potentiometer type. Cermet potentiometers are still however relatively unknown, so more information follows.
Amplifiers, Technical
Model A volume control
Model A uses the low impedance shunt potentiometer. This article brings more details about this ultimate volume control.
Digital, Projects
Asynchronous USB to simultaneous data converter board, interest check
Asynchronous USB Audio Class 2.0, galvanic isolation, two oscillators, and reclocked simultaneous data output. With U.FL output connectors it would be adequate companion to AYA II 2014 or DS board, and of course the great possibility to connect PC to Model S MkIII.
Digital, Projects
AYA II DS, DIY edition
As announced a few months ago, we have another run of AYA II. This run, marked as DS, includes one update with respect to AYA II 2014: synchronous DEM clocking circuit is now more completely integrated, so it is not optional but integral part of this AYA II project.
Digital
Model S MkIII schedule
In addition to S/PDIF, MkIII version of this converter will also include direct PCM input, able to accept both commonly used I2S and TDA1541A specific simultaneous data protocol.
Amplifiers, Technical
Model A, one year later: Binding posts
Model A now sports copper plated copper binding posts. Here is why.
Digital, Projects
AYA II 2014 DIY edition, second run
As an extension of original AYA II 2014 DIY edition offer, here is the second turn of AYA II 2014 orders.
Digital, Projects
AYA II 2014 DIY edition talks
Everything related to AYA II 2014 DIY edition building, parts and possible tweaks can be asked, discussed or shared at this page.
Digital, Projects
AYA II 2014 DIY edition interest check
As a result of initiative by several TDA1541A fans at diyaudio.com, AYA II DAC may re-appear in 2014.
Amplifiers, Technical
Sweet spot of amplifier power
According to the common wisdom, the relation between the amplifier power and its sound quality may look like the relation of equivalence. “The more the better.” The truth is, the best sound quality is associated with certain working points, which also implies certain power. Insisting on (often redundant) power, actually can and does compromise the sonic properties.
Amplifiers, Technical
Designing the ultimate monolithic amplifier
A sum up of more than decade of designing and living with chip based power amplifiers.