Going from the Vandersteen 1c to the 2CE is certainly a logical upgrade. At the same price, however, I think it would be worthwhile to audition a pair of Mirage OMD-15s. There are some things that it would share with the Vandy 2CEs, such as smooth response, linear extension in both directions (I think the OMD-15s go a little lower), and sensitivity (the OMD-15s are spec'd at 1dB more efficient--certainly they're in the same neighborhood). Where the two depart is in impedance curve and dispersion. The Mirage has a bit flatter impedance curve; it's nominally 6 dB and dips to 4 ohms; the Vandy dips to around 2 ohms. Between the two the Mirage should present a bit friendlier load to your Rogue integrated amp.
The second difference addresses whether you prefer more specific sweet spot imaging (Vandersteen) or a room friendly soundstage regardless of listening position. The Vandy will present a sonic hologram in the sweet spot; the Mirage will energize the room like live music, meaning you get the same basic response curve wherever you are in the room. Because a significant amount of the treble response is rear-firing, you can easily adjust the HF tonal balance by experimenting with the wall hangings behind the speakers.
You wouldn't lose with either speaker, but the Mirage presents an alternative way to energize the room and listen to the music. These speakers disappear into the music and scale up and down from solo voice to large ensembles very naturally. Definitely worth a listen.
They should match well with your Rogue integrated.
The second difference addresses whether you prefer more specific sweet spot imaging (Vandersteen) or a room friendly soundstage regardless of listening position. The Vandy will present a sonic hologram in the sweet spot; the Mirage will energize the room like live music, meaning you get the same basic response curve wherever you are in the room. Because a significant amount of the treble response is rear-firing, you can easily adjust the HF tonal balance by experimenting with the wall hangings behind the speakers.
You wouldn't lose with either speaker, but the Mirage presents an alternative way to energize the room and listen to the music. These speakers disappear into the music and scale up and down from solo voice to large ensembles very naturally. Definitely worth a listen.
They should match well with your Rogue integrated.