Yep, and a sealed (infinite baffle) design should also sound tighter than a ported design. A ported cabinet is tuned to a specific frequency (or frequencies) which can lead to a feeling of 'one-notedness'.
I really like the GK Neo 2x12, it'll go down to 36Hz. They also offer a 4x12 (I've been trying to locate one for sale) which is a sort of fridge replacement - and it only weighs 118lbs.
The 12" speakers offer nice low end like from a 15", but yet they retain a lot of clarity like a 10". Really great cabinets.