When Will the DAC Singularity Be Reached?

@carlsbad2

You’re mistaken - the digital signal is driving the PWM output stage. There’s no DAC because it’s not needed. This is also how the Raspberry Pi onboard audio works. There are details in this article:

https://hackaday.com/2018/07/13/behind-the-pin-how-the-raspberry-pi-gets-its-audio/

To the OP, I think we’re already there. DACs are a mature technology. A well engineered DAC that sells for $100 is going to sound great and possibly better than any other DAC costing more (including thousands of dollars more) in a blind test.

@yage   you are arguing semantics.  The amplification is analog.  You are challenging how it is integrated.

I don't think @yage is arguing semantics, @carlsbad2. The statement you made,  Peachtree GaN1 is a "digital amp".  There is no such thing.  Inside the PT amp, there is a DAC.  My guess is it is a common chip and if you open it up you'll find all the markings polished off of it. , is incorrect, specifically the "There is no such thing." comment.

This is not a distinction on integration. A so-called true digital amplifier will not have a DAC chip followed by an amplifier stage. To me the misnomer is calling it an amplifier at all. It is a DAC that can drive speakers instead of a pair of interconnects. That is the confusion. It does not amplify anything.

Yep. As most folks have pointed out. Low cost DACs will sound like low end DACs and high end DACs will continue to sound way better. It is the nature of advancement.

I have had a fair amount of experience recently with a couple of budget DACs (Schiit Gungnir and Yggdrasil), versus some $5K and several $10K, and a couple of $20K DACs. No comparison. Will likely remain that way for at least a couple decades.

When I bought my first lower tier preamp in 1980 it did not sound anywhere as good as an upper tier preamp. Still true today… but fortunately I can afford a much better preamp today.

I would imagine a Schiit Yggdrasil ($2.5K) sounds better than a 1990 $10K DAC… they all get better. But the lead on high end equipment tends to be ten or twenty years over much lower level stuff. Life is short (at least in my experience) and not worth scrimping.

ASR lost me when they have some Topping DAC rated higher than the Tambaqui in his hierarchy list. Sorry, but I’ll take the Tambaqui all day.

Lower cost DACs have reached a "pretty doggone good" level in the $500 to $1600 range (from say a Geshelli Labs AKM based J2 with user changeable op-amps to a Gustard R26). And hey, in my $12K system, I probably couldn’t tell the difference between the Gustard R26 and the Tambaqui. So, yeah, it is about buying enough DAC but not too much DAC if you get my meaning.

Regarding the so-called misnomer of "digital amp" there are some sites that explain it better saying no, it isn’t a magical digital to analog device but rather a technology from a few years ago that is finally ready for prime time because the use of GaN based devices allows it to work much better and satisfy most audiophiles.

Here’s Peachtree’s blurb about it on there GaN 1 amp:

"First and foremost is the GaN-FET amplifier module. It has several inherent advantages in a power amplifier that even the best MOS-FET designs simply cannot achieve. A GaN-FET power stage provides a precise high-power reproduction of the Class-D PWM signal with extremely high linearity. This linearity eliminates the need for ANY feedback, ultimately allowing for the best possible audio quality providing clean, clear middle and high frequencies and a tight, solid reproduction of low frequencies. GaN-FETs track the complex audio waveforms so much more accurately than MOS-FETs resulting in significantly more transparent and natural sound. The difference is something even a casual listener can hear and appreciate. The GaN 1 is also designed so that it does NOT even require a digital-to-analog-converter (DAC). The digital audio signal at the input directs the amplifier outputs to drive the speakers. Although DACs have continued to improve over the years, there is no DAC better than NO DAC! This concept is not a new one as similar devices often referred to as "Power DACs" made quite a splash in our industry years ago, but this time around, using the concept with GaN-FETs raises the bar to an entirely new level."

Well, maybe. I’d say I’d want to see some measurements just for fun of how that output stacks up against a good DAC feeding a regular good old Class A or AB tube or solid-state amp. But hey, technology can be a wonderful thing as it gets better.