Are Parasound DAC top performers ?

I am referring to second han DAc like the 1600 for istance.
I am interested to know when they can still compete with top notch converters or just outdated.
Is their Burr-Brown chip musical ?
Thanks for your comment
Saludos. With all the new technology available at a lesser cost, I believe you will do better if buying a new model from companies like Monolithic Sound, MSB, Bel Canto and others with offerings under $1,200.00.

Parasound products are fantastic for their price and more. I haved several units in the past, but digital components are advancing strongly in futures and technology, so better get the newest toys.