Buy the wrong stuff and no amount of setup will ever make it right.
When i spoke about embeddings controls i dont spoke about miracles against a sound engineering design for sure....
Bad or too cheap design is without redemption....
BUT it is relatively easy to buy a very good amplifier for low price....
My Sansui AU 7700 was one of the best in his times, today it is only good but it is enough for me....I buy another one in case....š
For speakers i buy Mission Cyrus 781 the top of Mission speakers but it is not here also the best in the world, only good one, but so good i dont need subwoofer...
The most difficult part was to look for a very good DAC at low price...
The NOs battery Dac of Christophe Mariac Starting Point Systems on Ebay with minimal design and only one TDA 1543 chip is for me perfect.... Not the best by damn good reason BUT.... I pay on a bid 20 dollars new....And i cannot criticize it on any count: timbre, imaging, soundstage, dynamic....Not the best byt so damn good upgrading is very costly....
To theĀ best that i know what i must pay for an upgrade is :
At least 12,000 buck
Harbeth Speakers, Berning Zotl amplifier , Denafrips dac....
But my actual well embed only good system is so good because of the way it is under control in the mechanical aspect, the electrical grid not too noisy, and the acoustical taken care of, that upgrading is not very tempting...
Ā Take a vibraphone and a piano like in Sun Ra and Walt Dickerson magnificent cd "Visions"...
Listen to the distinctive timbre of the piano notes and vibraphone notes, listen for the changing aural hues of each tone of vibraphone and the pulsating decay of the note... Listen to the critical bass notes of the piano....
Are the 2 instruments in the room? do they sound natural? is the sound come from the speakers? If they are in the room, with natural timbre very distinctive and no sound coming from the speakers, i call that an audiophile experience...
There is better audiophile experience for sure, give me the three components i name above and it will be better.... But it will not trash my actual sound, only improve it because my actual audio system is relatively rightfully embed and good....
My best to you....