Yes, Teac NT-505 has a fixed volume setting to output it to a preamp or integrated amp. That’s what I do. There are several NT-505 owners on A’gon who have nothing but great things to say about it (you can see my posts for my opinions - short version: super impressed).
I’ve never actually seen anyone who has owned it say anything bad about it on any forum, and I looked hard to find because their aren’t many/any professional reviews (at least when I purchased 10 months ago). There are people who dump on it here, but when you press them they admit they’ve never heard it -- they just want to believe the $2.5k Lumin or even the $4.5k Lumin is better.
Dual monoural AK4497’s, dual torroidal power supplies, dual on-board clocks, fully balanced XLR, DSD512, full MQA support, native Tidal, Qubuz support, Roon ready, Lumin software operating system, amazing analog output section, .... For under $2k, nothing not to like. I use it with Audio Research and Spendor D series and don’t feel like it is a weak link at all, though by price it certainly should be.
Teac is the parent company of Esoteric, which some consider to be the overall leader in digital, though fans of MSB, dcs, T+A and others will argue (I have no opinion, those are way out of my price range). But regardless, when you factor that in, not hard to understand why the Teac is so good, as there is likely a lot of technology trickle-down from Esoteric into the Teac. I call it "Esoteric-lite", haha. (that tends to ruffle feathers of those who sell much higher priced streamer/dacs or who own them I guess)