Are Pre-Amps necessary?


With all the advances in digital sources, do we still need a $5,000 pre-amp?

All we need is a switching device and maybe a Phono preamp/RIAA curve device.

Tone controls are another thing of the past. Room correction has taken over if that is something you want to use.

Thoughts?
vanson1
I can only share my experience from what my ears have told me after experimenting on this matter. I've tried my Lumin T2 with Leedh volum control into my JC1+, I've then tried a JC2 as a pre with same source but with disabled Leedh before I went with ARC LS28 witch is where I'm at now. I can assure you that even my grandmother could tell there is a difference. I will not go into discussions if sq is coloured or not with pre but I know that I will prefer a pre any day, any week.... 
chorus670 posts10-14-2021 11:41pmNever heard a pre that "Improved" the SQ compared to "No Pre".

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WEll true and not so true.
My Jadis DPL , 20+ yrs old, bought last year , now have Mundorf EVO caps and Takman Rey resistors + running Tele in the AX and AU, Tele in the cd buffer out, 
I'd say when I put in a Tele I note a   nice  nuance vs a  RCA, Bugle Boy AU  and AX in the slot.
So there must be something said for a  nuance of the pre's imput. 
But if the Shanling, Cayin or Jadis DAC, any of the 3 hada   vol pot,, I'd dump the DPL linestage.
Its really not needed and adds too much gain in the circuit for my 95db sens + 91db sens dual WBers.
Bottom line. 
Linestage/pre are not a  must have, neither a  should have.
If you find a  tube DAC /Tube player with a  vol pot, go for it and sell your linestage. 


Just looked overa  few DAC's, that I like, None have vol pot.
I have to cancel my above opinion,. Linestage are necessary as now you get more opportunities to pick which CD player/DAC you want.
So yes linestage are valid and necessary.
Thanks for all the great discussion.

The collective knowledge of this forum is fantastic. 
I tried my Bricasti M3 direct in place of a Lamm L1. The noise dropped and my perception of resolution increased. The first minute I thought the change was for the better. Percussive instruments were sharply augmented over vocals (like a bad mix) and the tone was worse. While I already know the Lamm is not the standard in transparency, it sounds better. I have read similar experiences from others. You have to solve for the preamp no matter what. It makes a huge difference.