I just completed my first foray into DIY Subwoofers. I'm running an SI HST18 on a Crown XLS2502. I have no minidsp and simply ran it through the Audyssey X32 on my Marantz receiver. I "level matched" it fairly close to my existing Rythmik 15" sealed sub. The bass sounds great for my ears. I got a good headache after 20 minutes of Mad Max, Fury Road!
1. I'm running the amp bridged and it lands about 8 out of 10 on the level spectrum. Any danger running 10 out of 10?!
2. How much sound quality improvement from running in through a minidsp?
Main Speakers: Revel F208's. Center: C208
SUB#1: Rhythmik F15HP. SUB#2: Stereo Integrity HST18 w/ Crown XLS2502
Marantz SR7009, Emotiva XPA-5
Projector: Sony HW55-ES, Carada 134" screen