It’s really hard to beat Coda. Auditory though he’s a dealer and that might make him biased provided some great info on Coda. If you like their sound signature, which Auditory did a good job describing, build quality, quality of parts combined with their engineering know how is about the best value in high end audio. Their gear isn’t cheap by any stretch but you can compare their gear to other high end brands and in an apples to apples comparison their gear is probably 20-50 % less expensive, likely made with better, more expensive parts by engineers that know how to maximize the performance of the parts used. You can’t go wrong with Coda, again, if you like their sound signature. Pass is another great brand, Coda has ties to Pass, Audiotey did a great job laying out the differences, Pass will be warmer but both Coda and Pass are gainless and are designed to control, grip speakers far beyond their wattage ratings.
Parasound, not made in China, designed in California and built in Taiwan. Parasound built its brand on having world class engineers in Cali design, select parts, components and then manufacturing in Taiwan to strict quality standards delivering some of the best “bang for the buck” equipment. I wouldn’t put their gear in the class of Coda but in fairness, Coda is way more $$. The # 8 Coda would really be compared to the A21 +, the # 16 to the JC5. The A21+ or the JC5 are both great amps as well. I’d roll with the Coda # 8 but would have no issues living with either the A21+ or JC5, you should let your ears guide you.
I got to compare the A21, Coda # 8 and Krell 300xd in my system. I landed on the Krell, to me it was the best of Pass and the best of Coda rolled together. All Class A, Krell kept its legendary ability to drive almost any speaker with grip, control alive with the XD gear along with a silky, grainless, smooth presentation. There is also a touch of warmth, tube magic to the Krell XD gear. Prior to the comparison I owned the A21 and Coda at the same time, had lots of time I compare the 2. I preferred the Coda but was based on my taste, the A21 for around half the price of the Coda was really hard to beat form a dollars / performance ratio.
I’d give a look to Coda, Parasound, Pass and Krell. Let your ears decide. I’d list their build / parts / warranty ranking as:
1. Coda
2. Pass - will have the best resale value if you decide to sell / upgrade
3. Parasound / Krell tied