A vintage DAC

About 6 months ago I purchased an Audio Research DAC5 from a friend. I have done as much research as possible regarding this DAC and have come up short of my expectations for information. Being a novice I have searched this forum and the internet in general and have been unable to find any info regarding the DAC5 and was hoping you would/could share your experience with this unit.

I am very pleased with the AR DAC5 and I prefer its sound to my Cal CL-20 but don't get me wrong when I say my Cal also sounds absolutely amazing. I don't know how to properly express the difference between the 2 but I can say I prefer the bass of the DAC5 because it just seems very accurate compared to the Cal.

That said, I thank you in advance for any input, opinions or insight regarding the DAC5.

Regards