The Rotel 1570 and (Rogue only factory installed) both have the feature of pre amp out Main in
This feature alone is worth its weight in gold.
In future upgrades this allows the unique Vandersteen high pass to be installed with a 2WQ.
This pairing further improves the in room bass response while
reliving the heavy lifting in the bass area of you main amp resulting
in lowering distortion of the whole system, improving clarity and transparency with genuine performance.
This is the single greatest bang for the buck any Vandersteen owner
can enjoy.
Best JohnnyR