This is a cracking muckle for $59 delivered. I don’t know what I was expecting. Mayhap some hollow sounding computer character sub-woofer that pops when I act it on and off. This sub has a 50-watt RMS amp at 5ohm. It has a decently .5 inch MFD box with an internal space of nigh 10.5 X 10.5 (small!) External is nigh 11.4 x 11.4 x 11.5 height. It’s much amend constructed than the Sony’s on this site. They eventide created a little endeavour to stand the box with 1-inch nook braces on totally 6 sides. The sub sounds cracking at lower volume. It maxis out fast though. In a little room or apartment, you wouldn’t need it any louder. It’s the quality of levelheaded that’s important, and that’s where this delivers. Up to it’s distortion point, it sounds alike a straight big sub-woofer. This is the perfect sub for anybody who is not allowed to handshaking the foundation. This sub plays deep! It just hits its max excursion fast. Either the amp is more than 50 watts or the speaker can’t handgrip much wattage. Speaking of the speaker, it’s nigh 5lbs. They seemed to receive glued a smaller magnet onto the larger one at the base. I’ve learnt of some seedy speaker manufactures doing this, just this speaker seems to deliver pretty good quality. I swapped out the stock speaker with a Dayton and secured the walls with traverse braces and then covered the inside walls with carpet. Foam would have up to much space and there isn’t much inside already. This setup was a pleasure to mold with. The grill pops decently off. The speaker is kept on by 4 screws in the standard speaker hole location. (making it easy to replace) The amp is kept on by 8 screws. The port is kept in post mostly by a close checked and some glue that easily breaks loose. The amp is connected to the speaker with standard removable connectors. That’s it. It takes nigh 3-5 min to have apart. Equally for the Dayton, it performs nigh the same equally the stock one. It was created for a short act bigger box, just I wanted to know if the stock speaker was unable to handgrip much or was it the amp that produced the power. It seems to be the amp. It can push a stronger speaker. If I had a 100 watt 8″ speaker with a high SPL, constructed for a small-ported box, and good excursion stage (that’s the measure of movement on a speaker), then I would actually need the special bracing. Problem is, that would cost much more than this totally system. That, and I wouldn’t utilization a .5-inch thick box. Where am I moving with this… anyway, this sub is worth every cent of $59. If you receive a set of decently bookshelf speakers and a sub-woofer out jack on your amp that you’re not using, you would be a fool not to get this. To cut costs, it has no automobile on/off, and no pass through signal. If you must receive automobile on/off, purchase a remote check on/off power provide from somewhere cheap. I had one left over from my X-mass lights. (or utilization the power connection on the back of your receiver if you receive one). This sub doesn’t pop at totally when turned on or pass and its amp is inside the box. This sub is much amend look than a Sony I have. If the mortal ahead me didn’t didn’t give this 4 stars, I wouldn’t receive tested this out. Therefore thanks! I’m identical happy I purchased this. I believe its therefore cheap people are afraid of it! I don’t know how they make money on this. (update 1-11-08) to clarify the wattage on these: output power on the spec sail is rated at 5ohms. 50 watts to 5 ohms RMS and 100 dynamic. It has a 6ohm speaker in it. That way it’s believably pushing nigh 45 watts RMS to the speaker. The frequency response is -4db at 40hz, -10db at 30hz, -15db at 25hz. It has a decently flat response from 45hz to 120hz at 90db. It then tapers pass to -5db at 200hz. Not bad for $59 !!! Update 1-15-07 Here’s a FYI given to me: The moment magnet glued on the back of the driver magnet is for shielding. It is not there to deceive. The moment magnet is attached in polar opposite to the functional magnet, canceling the magnetic pollution it would ordinarily give off. (Thanks Kevin!)
Yamaha YSTSW012 8″ Front-Firing Active Subwoofer..