Ang - I think you got the Goldwood woofers mixed up. This one http://www.partsexpress.com/pe/showdetl.cfm?&Partnumber=290-345 is the GW-215 at $29.00 with a Qts of 1.95. I have got two of these which I compared to the Alpha 15As. I was attracted to them for the reason you noted - the very high Qts and offered a way to get deeper bass without need for any EQ.
Unfortunately the GW-215s have a lower sensitivity and low Xmax and consequentlyof steam long at high volume levels. At these levels the bass sounded bloated and was clearly distorted. Because the GW-215s are so inexpensive I also tried 2 in a baffle compared to 1 Alpha in the same size baffle (24 x 40"). The single Alpha was still far better.
Unfortunately the GW-215s have a lower sensitivity and low Xmax and consequentlyof steam long at high volume levels. At these levels the bass sounded bloated and was clearly distorted. Because the GW-215s are so inexpensive I also tried 2 in a baffle compared to 1 Alpha in the same size baffle (24 x 40"). The single Alpha was still far better.