The 3.7 does not lack bass. It is very difficult to achieve the bottom octave with medium sized cabinet designs, especially when using 1st order crossover networks. (Woofer must be expected to perform equally well several octaves above the crossover point.) Typically designers have used much larger cabinets or electronic equalization, but that becomes taxing on the amplifier. I was impressed with the bass output of the 2.7 and I'm sure if you audition the 3.7 you will not be disappointed in the bass output.
I must add also that I agree with unsound as far as room size. Treatment for room interactions can make a huge difference in the mid and upper octaves. Bass, deep bass, would then be the limiting factor due to wavelength and the 3.7 doesn't quite get there.
I must add also that I agree with unsound as far as room size. Treatment for room interactions can make a huge difference in the mid and upper octaves. Bass, deep bass, would then be the limiting factor due to wavelength and the 3.7 doesn't quite get there.