Here is my front setup right now:
Kenwood KDC-x994 stereo
4-channel MB Quart Ref4.80 amplifier
HAT Imagine running "quasi-active"
By quasi active, I mean that the woofer is running full range mode and the tweeter has a 2.2uF capacitor inserted inline for its high pass filter duty. This setup seems strange but it actually replicated the passive crossover of the HAT Imagine speaker.
The stereo's 'front' outs are driving tweeters and the 'rear' speaker outs are driving the woofers. I have dialed in some time delay for the left tweeter and left woofer through my stereo, the best I could. The woofer is high passed at
[email protected] This sounds great. I would not change it (except for Clarus or Legatia-grade gear..)
My advice to you of course to go active or "quasi active". If you go active, there is relatively little value in buying HAT Unity instead of HAT Imagine. According to product description, the HAT Unity woofer is based on HAT Imagine. The only improvement is that you get a Clarus tweeter instead of Imagine tweeter. I am not sure if that's worth the extra $100 or so if you're not going to use the passive crossover boxes that come with Unity. A word of warning though.. HAT Imagine tweeter's mounting diameter is a few mm longer than that of many other tweeters. I had to cut a little excess material in my tweeter pods to make it fit.