Value of a preamp?

The ’preamp’ is essentially a cash grabbing strategy by certain manufacturers who went to the umpteenth level to do a ground-up design/fine tune a preamp to a specific power amp. For example, Luxman... they designed a wallet abusing preamp (c900u) for their m900u power amp and the latter sounds the best only with that specific preamp (A few other manufacturers fall in that same category locking you into a stack).

If you didn’t get stuck with such a cash grab manufacturer strategy, feel free to mix/match whatever, find a integrated amp or a dac with a decent sounding preamp mode, i.e., don’t overthink the preamp. It isn’t the greatest thing that happened to hifi since sliced bread.

@deep_333 "It isn’t the greatest thing that happened to hifi since sliced bread.".

Agree while it’s not the only option, many of us own both options, and simply insert and remove a good preamp in the system, and hear the engaging difference, likely more so [in a purpose-built "separates" designed system].

Then, insert a good streamer or combined DAC-preamp with a well designed volume control, and one can usually hear the difference yet again.

There are manufactures with good integrated amps, built in preamps and DACs, that sound really nice [with no separates], and usually comes at a hefty price.

Seems like some of the all-in-one integrated units are starting to take over more, and sorta looks to the new future path as old receivers were in the day. The more that show up, creates compensation, and price wars with competition is good to have. I’ll be on the lookout myself for the best sounding value all-in-one integrated when it gets here! Not too far off one can suspect :)

it can add gain and thrilling dynamics

The ’preamp’ is essentially a cash grabbing strategy 

Yeah, no.  That’s just ridiculous.

Do it. Get the preamp. Just make sure it’s not a crappy one as those will make things sound worse instead of improving the situation- like a good preamp should.

I've also tried direct from DAC/Streamer using LUMIN's LEEDh volume control. It was ok, but the preamp with some good NOS tubes made a big improvement over direct connection from DAC to amps.