IRs loader to load some reverb (.wave), with parameters like mix, eq, gate, predelay.
There's a similar feature into "Guitar rig 5".
And here, it would be very close to the Kemper's IRs Cab section.
This would have easily a "spring reverb" or a large amount of reverbs with specific colour sounds (gold plate, warm room, ice reverb, dark chamber...).
There's a full of free IRs on the web (.wave) i use for mixing and the quality is awesome.