You buy the bottom of the line VTV amp and you think you will know anything about class D or Purifi? This amp is $979 delivered including shipping. It uses a one dollar op amp for the input buffer (LM4562) and two one dollar 3 pin regulators.....here is the part listed on Hypex site:
https://www.hypex.nl/product/nc500-evaluation-board/51
This is NOT going to give very good sound. The input board from Purifi is better....at least it uses 1612 op amps and a discrete regulator. However, the input board that VTV makes that uses discrete op amps and discrete regulators is much better sounding than the Purifi board. In fact, I will not mod any VTV amp that uses the stock Hypex input board. This is not serious....this is for people who want to spend as little as possible. The discrete input board will take the amp up another level....but my mods take the amp to many more levels up. You are just playing around with that VTV. I will have an eval amp out for tour....so you guys can really hear what class D and Purifi can do. A fully modded stereo VTV Purifi amp using modded Sparko labs op amps is around $2600.........not cheap....but a lot less than a $10K LKV.
https://www.hypex.nl/product/nc500-evaluation-board/51
This is NOT going to give very good sound. The input board from Purifi is better....at least it uses 1612 op amps and a discrete regulator. However, the input board that VTV makes that uses discrete op amps and discrete regulators is much better sounding than the Purifi board. In fact, I will not mod any VTV amp that uses the stock Hypex input board. This is not serious....this is for people who want to spend as little as possible. The discrete input board will take the amp up another level....but my mods take the amp to many more levels up. You are just playing around with that VTV. I will have an eval amp out for tour....so you guys can really hear what class D and Purifi can do. A fully modded stereo VTV Purifi amp using modded Sparko labs op amps is around $2600.........not cheap....but a lot less than a $10K LKV.