How cheap can you go and still be happy with the sound?

...still.....😔

@immatthewj wrote:

I’ve owned three tube amps (I still own my first one) and the best sounding I ever owned were a pair of monoblocks that could be a bit unreliable so I replaced them, but they were the amps with the highest MSRP.

I own three preamps, and each successive preamp cost more than the last one and each one had sonic characteristics that were distinctly better than the one it replaced.

YMMV, but my experience has been that every increase in sonic performance that I have ever experienced has required an increase in expenditure. To me, that does not seem all that unreasonable.

From my chair the monetary value, as a necessary indicator, is too simple, contingent and crude a measure - indeed misleading. To a point I'd concede price can be factor, until it isn't, and when it all gets mixed up in a complex context of the interdependency of many factors (not to mention subjectivity), things get tricky, and stubbornly trying to maintain price as a measure (for all) to go by is simply missing the bigger picture.

A proper design isn't the really expensive part, nor its proper implementation. Audiophilia on the other hand has a tendency to run amok with wild expenditures in select areas that's more about idiosyncrasies, catering to exclusivity and/or trying to make up for or work around a range of design restrictions. Did I mention cables?

Primary factors however are time, experience, (again) proper design, implementation, adherence to physics (speakers, acoustics and coupling/decoupling), a sense of the holistic/seeing the forest for the trees, an open mind and, dare I say, a sense of anarchistic adventure. The latter is particularly important in the face of PR bullcrap being thrown about, dogma, conservatism, and not to mention the tendency to bow to business and community consensus - including the appeal to authority. 

To reiterate: price can be a factor, until it isn't. From here on there are bigger fish to fry.

@immatthewj ....and I will basically agree on some levels of the pursuit of the 1% (and narrowing) 'level of perfection achievable currently'...

Given ones' level of 'a proper space/venue' for ones' equipment, the qualities of the played media(s) with the choices of said equipment driven by taste and the depth of ones' credit/cash/or the contingencies of outright theft....Atypical for the bulk of A'gon associates for the latter, no doubt. ;)

Based upon what I've read here and elsewheres'. there would seem to exist almost a variant of an 'event horizon' in terms of the apparent responses of a given set of equipment in a given space occupied by a very special pair of ears that can apprehend what's being experienced..

It would appear that to experience this 'edge of the probable' one will need very deep pockets and a near degree of absolute silence over working towards and achieving this goal to some degree....

Owning ones' own manufacturing facility would be a plus; one that is very profitable to allow the research and the creation of the 'space to play within' ought to be in parallel with the former....

And then...keeping the lid on what you've done.

A Saudi prince would be the most likely suspect to do such.
One just has to be of that societal group to do so.....

I'm certainly not, so I'll just continue to wade through the sludge I tolerate....😏

I’m surprised that setup has not been a much larger part of this thread. It makes a huge difference in even the least expensive system. Make sure the speakers are wired in-phase, that each is exactly the same distance from your ears (like within a quarter inch) and ensure that the tweeters are at the same height above the floor as your ears when in your listening seat. You may well be amazed how good even a cheap all-in-one system can sound. 
 

In my experience of more than 50 years, setup is the most often overlooked part of entry-level audio systems. 

@gigabit, agreed on phase and phasing proper, which ought to be easy; one needs to ensure that any sub being run is in phase as well.  Any sub worth calling it one should have a switch to reverse such....

Tweeter heights should automatically be the same unless a disparate speaker array is underway.....odd to note, but I've not experienced everything in all circumstances, either...🤷‍♂️

The 1/4" distance comment is a bit daunting for any species to pull off, however.

My cats can do that, but I'm not so motionless.  I suspect I'm not alone at that, but can stand to be corrected....
If one has the cinderblock chair with a molded seat, back, and head restraint could make that work....straps optional, I hope....🤞

"The house is on fire!"

This Opus is nearly complete! I'll be outside in a moment!

Not-So-Famous Last Review/BBQ Division.....