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Drop + THX AAA™ 789 Linear Amplifier

Drop + THX AAA™ 789 Linear Amplifier

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Product Description
Announced at CES 2018, the Drop + THX Achromatic Audio Amplifier (THX AAA™) 789 is a linear bipolar amplifier with feed-forward error correction. It’s designed for objectivists who appreciate an incredibly clean, transparent amp—the sought-after “wire with gain” whose amplification is wholly uncolored by a sound of its own Read More
Q&A Highlights:
What makes this better than the JDS Atom?
Balanced output for better compatibility and channel separation. Lower single ended power, but significant power through XLR, which the Atom does not have.
How do I connect this to my computer? I have an rca cable and I plugged it into the headphone jack of my computer while connecting the red and white cables to the input on the back. When I turn it on I hear a loud static noise.
Headphone jack on a computer is amplified through a typically crappy amp. This is a great amp. Garbage in, garbage out. Get yourself a DAC which will connect to the computer via USB and then connect its output to the THX. There's lots on here to pick from -- Topping, Grace Design, etc.
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Aug 2, 2023
REALLY NOOBY question as I'm new to this. I want to connect the Drop + THX AAA 789 Linear Amplifier directly to my PC. I' m not sure how to connect it to my PC. My PC has a Line In, Line Out, Mic In, C/SUB and REAR port on the back and I have a Beyerdynamic DT 1990 Pro so it's a single ended connection. I have a RCA to 3.5mm cable. Where does the RCA cables connect to and what does the 3.5mm cable connect to on the back of my PC?
Also, when the INPUT button is fully pushed in, is that the balanced or single ended input?
Thank you!
Jan 23, 2023
I desgined a simple 3d printable vertical stand if anyone is interested. You'll need to remove the feet for it but they are on screws, so it doesn't damage it.
Dec 18, 2022
Just reporting another dead amp, It was working fine, then while trying out some new IEMS I noticed it seemed really quiet, then I got a pair of HD800s and could hardly hear them even with the volume cranked to max on the amp, searched around and saw this is a incredibly common issue with these amps, and apparently drop won't do anything about it, which is very disappointing. I've spent a decent chunk of money on this site, and had previously recommended it to other people for stuff like headphones, but as it stands I will never purchase another thing from this site or recommend it to anyone, since drop won't stand by their products.
Oct 24, 2022
Mine is dead after 31 months. 5 month ago, balance output was dead but I can still use RCA. Now it is completely dead. Team?
Sep 30, 2022
My thx amp just remained w red light on n i cant play anything.please help
Aug 12, 2022
so does anyone knows what is the most common thing that fails, and has anyone successfully repaired
Jul 31, 2022
I just got the red light of death. Apparently this is very common. Cmon team, stand behind your product. 200 plus dollars for a paperweight is absurd. I've spent thousands on your site. You'd think you'd at least give me a credit on something else.

Mar 28, 2022
Welp! My amp is also dead. And now i see that the discussion board is flooded with dead devices. I literally used the amp a few times only and then i got the infinite red light. Guess ill have to sell it for parts too like a few ppl I've seen on eBay. This is incredibly disappointing. To top it all off I bought this amp with the Focal Elex combo, and the Focal cans also died (twice) so i had to return those 2 times and then get a refund. In conclusion may this serve as a warning for future buyers, youre better off not buying Drop branded peripherals since the quality is sketchy at best.
Mar 17, 2022
It is dead after 22 months. The shortest life of all my amps. Never buy Drop anymore.
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