As the smallest subwoofer in the entire SVSound lineup and also the one requiring the least amount of cash outlay to own, one might reasonably expect that the SB12-NSD would exhibit a few tradeoffs in its performance. However after spending a few weeks getting intimately acquainted with the review unit provided by SVS, we found very little to gripe about and a whole lot to like. The SB12-NSD makes use of a proprietary 400w class D Sledge amplifier and 12â€ aluminum cone driver in a tiny sealed cabinet to produce satisfying and exceptionally well rounded bass reproduction, at reasonable cost and with very little floor space occupied in the process. At the end of our term with the SB12-NSD we came away impressed with the overall build quality, look and behavior of this small sealed unit. Highly Recommended. Discuss "SVS SB12-NSD Subwoofer Review " here. Read the article.