Upgrade speakers or DAC

i only listen to music in 2 channel, but current system:

Dedicated 20amp line

AQ Niagara Edison outlet

AQ Dragon power cords and interconnects throughout

AQ Thunderbird Biwire speaker cables for Front LR 

AQ Thunderbird Zero speaker cable for Center Channel

AQ Vodka Ethernet cable

AQ Niagara 7000

McIntosh C2500

McIntosh MC1.2kw (X3 for LCR)

McIntosh MX160

Mcintosh MC207

McIntosh MCD205

Cambridge Audio Edge NQ

Fisher MT-6225 Turntable

PS5

Sonus Faber Olympica III

Sonus Faber Olympica I

Sonus Faber Vox 

REL 212 SE (X2) 

Speakers!

I used to say speakers but, the source is where everything starts and stops

if the signal is not very good from the start you can’t make it up down stream.

Big jump from Cambridge to dCS DAC, I would assume. Do that first and speakers afterwards. 

Speakers!