The Sandman
Member
What would Magico recommend. one of their 50k racks or upgrading from S1 to S5 mk2?
Going from S1 to S5 Mk2 isn't an upgrade, it's a major system change which will likely call for a component change (amps at least) for full realization of the benefits of the speaker "upgrade".
A good rack should be added to a system as soon as it is feasible since it improves any and all components. But in your example of a system change I'd have to say going from the S1 to S5 would make a bigger difference than the rack if the funds aren't available for both at the same time.