Am I deaf?

You’re just being honest to yourself. Not as fun maybe but will save money and time. Or let you put your money where they differ most.

Playing cds and Tidal. Tidal on the macbook pro too. 

Back in the day when the first Bryston DAC was made. Rave reviews both TAS and Stereophile. I bought one $2300.. To replace my old mid 90's bought used for $250 DAC. Sell, I listened and I listened and no better. I returned the new DAC after about three weeks on 24/7.         
After over seven years gone by, same dealer suggests I try Marantz SA-10. Borrow it. Hey it actually is better. So I buy the $7000 device.I suggest magazines have a vested interest in over-hyping new stuff.And particularly DACs can be tough to find one that REALLY is a lot better. most are similar sounding.. Unless you have a way high end system... Cables, power cords, tubes, phono cartridges all have far more differences than the DACs out there.

Not nuts. The Oppo is a good DAC. There are lots of great DACs out there and they are sounding very close. Try PS Audio Direcstream if you want something a little different - smoother and more analog sounding without loss of resolution. Also try a tube preamp, a great way to get old analog sound from what can be otherwise all SS gear and you can roll tubes to taste.

I just went through what might be a similar issue to what you may be hearing with Redbook CD.

 I had been using an Oppo-93 SPDIF out to my Yggdrasil Analog 2 with a Jorma Digital cable (RCA at Oppo, BNC at the Yggdrasil). I was never quite satisfied with the sound. It seemed to be somewhat mechanical, bleached, or lacking tonal densities, with the mid-bass sucked out, and an emphasis on the treble. From memory, I seemed to recall getting better overall quality sound when I was using a CAL Delta transport with a lesser DAC (CIA VDA-2) and cabling.

I had read the Oppo 93 had high jitter and knew that was a problem. I also speculated that something might be occurring with the PCM conversion as the clocks in the Oppo are a different frequency than a dedicated CD transport, and error correction methods (Reed-Solomon or something else) could differ.

On a whim, I tried another Blu-Ray player and heard a difference. That was enough to convince me to get a dedicated CD transport. I recently purchased an Atoll DR-200 Signature, and the sound is significantly better. Now, CDs sound more analog and fluid , tonal densities have improved, the mid-bass is back. The system “boogies” again!

I’d suggest you try another transport. Even as a simple experiment, another Blu-Ray or DVD player. Even better, would be trying a CD player or transport that uses a  dedicated 44.1 kHz clock.

Perhaps the problem is not with the Oppo as a transport, but eliminating it as a variable should yield some useful information.