The sub woof light is always on because the sub woof output is always on whether you use it or not. Notice that Involve has a quirky way of indicating this on the front panel being 4(.1) or 5(.1). Fear not it is only a low pass filter of unknown slope & the cut off is in an ancient Chucky post somewhere, I think 125Hz. But there should be no loss of bass as all bass, whatever is there, is retained only the LFE is added if you use it.Allright!! I have a working quad setup now!
Although I have a question about the 4 vs 4.1 bass channel on the SM
I am playing an old quad LP that should only have 4ch, but the bass channel LED on the SM is illuminated, even though I have it set on 4ch, not 4.1
Reason I ask is the bass appears to be cut/rolled off. But it may also be something with my gear.
But anyway: LP is "six wives of Henry VIII" by Rick Wakeman, and it sounds GREAT!!
Especially the 1st track on side 2. I always thought recordings of pipe organs sounded distant, and not that impressive in stereo. But WOW, in surround it is gobsmacking!! You really get a sense of the air, the space, and immensity of sound, with the rear channels.
Looking forward to listening to some more quad LP's
Well done, Chucky, Dave & team!!
I like to point out that there are many lack luster 5.1 music/movies/TV that come to life when output in 2.0 & let the Surround Master do its magic.