Mola Mola Tambaqui or Denafrips Terminator Plus?

No, I meant compared to the well burned in Terminator. 

I have had my Terminator Plus for a little over a week. I upgraded from a Terminator that had for about 10 months. I added a Denafrips Gaia to my Terminator about a month ago. This was a significant improvement to the Terminator. 

My T+ is still breaking in, so I don't know how much better it's going to get, but after a week it has now easily surpassed the Terminator, which I thought was a great DAC. The biggest difference I've noticed is that recordings that I had previous thought were just not very good are now much more listenable with considerably more detail. 

If you decide on the Terminator Plus, I strongly recommend adding the Gaia. I haven't actually tried the Terminator Plus without it, but the improvement with the Terminator was so dramatic that I would expect it to be a well worthwhile addition to the T+, particularly since these two devices were designs specifically to work together. 

I have never heard the Tambaqui, so I can't comment on any comparison. 

The Gaia is primarily a reclocker, but also has buffering and optical isolation between the inputs and outputs, and can select between many different types of digital inputs and outputs to multiple types as well. When used with the Terminator Plus, it can also synchronize the digital outputs with the clock(s) generated by the DAC. 

The Terminator seems to really prefer the i2s input. I initially was using a Bryston Bdp-2 (with the upgraded IAC board) connected to the Terminator over AES3 (DH Labs D-110). I also tried connecting my Roon server (NUC running ROCK with LPS) directly to the DAC over USB (AQ Diamonnd) but I preferred the connection through the streamer. 

When I got the Gaia, I first connected the NUC to the Gaia using my USB cable, and the Gaia to the Terminator using the AES3 cable. This was an improvement over using the streamer, but not a huge improvement. After several days with this hookup, I got a cheap HDMI cable and tried an i2s connection to the DAC. Wow.  This was pretty dramatic, and that was with a cheap cable with no burnin. It continued to improve a bit more as I waited a couple weeks to receive my Tubulus Argentus i2s cable. This cable was even a bit better but no where near the difference as switching to i2s in the first place. 

When I got the Terminator Plus, I hooked it up the same way, but added two clock cables between the DAC and Gaia. Cold out of the box, it wasn't quite as good as the Terminator, but after warming up for 24 hours, I think it probably reached parity and had continues to improve. 

As I said, I've only had it for a week, so if it's anything like the Terminator, I expect most continued improvement for at least another several weeks. Once it's fully burned in, I may do a little experimentation with different cables and connections. 

@luisma31 - I don't think 73max compared the Terminator II with the Terminator Plus but I could be wrong. The Terminator II has barely begun shipping, and 73max did not mention the Terminator II. 

I had a Terminator and purchased a Terminator Plus. I found the Terminator, particularly when connected through the Gaia, to be an outstanding DAC. But I still prefer the Terminator Plus sound - a bit more detail and air with a more focused sound stage. 

As I understand it, the Terminator II and the Terminator Plus are essentially the same DAC, with the Terminator Plus using a hand-selected OCXO clock and R2R board. In other words, the R2R boards and clock modules that test the best are sorted for these DACs. Whether that's worth the extra ~$2K I can't say. I haven't heard the T2.

It took quite a while for the both the Terminator and Terminator Plus to break in. I think the Terminator Plus took even longer than the Terminator which I suspect is because of the change to supercapacitors. I'm not sure how long 73max gave the T+ to break in, but it was a couple of months of 24/7 operation before it really reached it's peak for me. In the first 2-3 weeks, I thought my Terminator sounded better.