I had hoped to compare these speakers in greater depth, but unfortunately, I have received a letter from my apartment complex that says I will be evicted upon the next complaint. Also, I managed to achieve that next complaint just a few minutes after I received the letter (go figure).
Anyhow, I've been playing the Sequel II's 24/7 since I put in the new panels on Friday at 10 am. They still are not fully broken in, I hear it takes around 100 hours.
Since I do not have a whole lot of listening time with these speakers, the review/comparison will be brief. So far, I have noticed that the Sequels take much more to drive. They are detailed. A 192kbps mp3 played on the Monitors will sound alright, on the Sequels, the flaws are very apparent. I am hearing details in tracks that I haven't heard before on any other speaker.
A lot of people have noticed a disconnect between the woofer and stat panel... I have yet to notice this. I think the panel blends with the woofer quite well (in fact, I don't even notice the difference). The mids are not as punchy or in your face as the monitors. This could be good or bad, but I believe I prefer the mids of the monitors. The Sequels seem to be very consistent, I do not feel there is any area that is overdone, everything sounds pretty natural. So far, it seems that on well recorded tracks, I can turn the Sequels up louder than the monitors before my ears start to hurt. This probably has to do with the lack of a tweeter. However, there is a sort of harshness on low quality music (mp3s) that is not noticed on the monitors. It's almost as every sound has a sharp edge.
The Sequels image quite well, when they (and you) are positioned properly. I don't know how many times during setup that I found myself using the balance control wayy too much, only to sit back down and have to adjust it again. It seems that if the speakers are not properly placed, moving your head 4 inches in either direction causes the imaging to change dramatically. However, I am not currently noticing this with my current (and probably final) positioning.
The last thing I've noticed is that these speakers are not exactly apartment friendly. I am able to turn them up louder without fatigue, and they have 10 inch drivers. This combination leads to complaints all day, along with the police showing up for a final kick in the sack.
If I were to compare these to then monitors I would probably say that I like each speaker equally. The monitors really produce mids very, very well and for this they are surely keepers. I think the Sequels are better in the highs (and lows, but that doesn't count) for me because they are less harsh and not as fatiguing. I really think the monitors image well, it would be extremely difficult for me to say which speaker accomplishes this better. I would need more listening time, which I am afraid I will not get. The monitors are certainly more forgiving when it comes to the material and positioning. I like that I can set them up virtually any way, and still get good quality sound. I remember when I was moving, I had one speaker on the floor, and the other on my computer tower and they still managed to image quite well. When properly placed, I believe the Sequels melt in to the room a bit better than the monitors.
All in all, these are both great speakers. As to which pair I will keep, I think that it is probably going to be the monitors, simply because I might stand a chance of not getting evicted.