Although the humble subwoofer is probably the least likely to require placement inside a space that's beyond cable reach -- or concealment -- thanks to its non-directional sound frequencies, JBL and Infinity have teamed up to solve the problem anyway. The PS212W is a 12-inch $679 400W sub with an included 2.4GHz wireless transmitter / receiver bundled: yes, that's 2.4GHz, the same frequency nearly all your other wireless kit uses. JBL's Cinema Sound CSS10W also uses this overused frequency for its wireless, but it's only 10-inch and 300W, and will retail at the lower price of $559 when it launches in January next year.

[Via Audio Junkies]

Controlling your fish remotely is one thing, but utilizing fish sense to dictate the actions of an uncrewed submersible is an entirely different animal. Malcolm MacIver and colleagues at Northwestern University have created an "artificial electric-field sensing system that could ultimately give robotic subs the same additional sensory capabilities" as found in weakly electric fish. These particular sea-dwellers have an uncanny ability to sense electric fields, and can also generate their own to "help navigate, identify objects, and even communicate with other fish." The newfangled "electro-location" system could allow underwater bots big and small to more accurately maneuver and collect data, particularly in situations where precise movements and recognition of surroundings is important. Even the creators admit that it'll be quite some time before man made sensors can come close to mimicking those found in nature, but judging by the videos seen in the read link, they're certainly riding the right wave.

[Via NewScientistTech]

The University of Washington's Deepglider won't go down as the first manmade projectile to scour the ocean for random (albeit useful) tidbits of information, but it does sport an ultra-modern frame and energy source that certainly sets it apart. Similar to the nuke detector, Edinburgh Duck, and the bevy of other submarines used for the benefit of mankind, this concoction is used to capture underwater data to aid researchers in discovering more about global warming and seafloor conditions, but its autonomous nature and carbon fiber enclosure gives it the ability to remain underwater "for up to a year" and sink to depths of nearly 9,000 feet. The 71-inch long, 138-pound device carries sensors to measure "oceanic conditions including salinity and temperature," and when not patrolling the seas based on satellite-driven controls, it can transmit the data remotely using the same signal path in reverse. Notably, the torpedo-like device boasts an energy-efficient, battery-powered design that allows it to stay submerged for ridiculous amounts of time without needing a recharge, and while we're not too sure if its researchers are too caught up in its unmatched diving abilities to notice how swank the power system is, they've apparently got a good thing going.

As Popular Science reports, inventor/spelunker Bill Stone's DepthX robot submarine recently underwent its first successful test in Mexico's La Pilita underwater cave, which Stone hopes is only the first step on the bot's way to exploring Jupiter's ice-covered moon, Europa. After a slight delay with some suspicious border guards, the robot quickly got to work on its initial field test, diving some 300 feet down into the cave system, collecting samples, capturing images, and building a 3D map of the area. As the video after the break shows, the robot is definitely built to impress, with some decidedly sci-fi sounding sound effects adding the perfect final touch. According to Popular Science, DepthX will undergo another field test next month, to be followed by a considerably bigger challenge in May, when it'll dive more than 1,000 feet into the Zacaton, the world's deepest sinkhole.

[Via Slash Gear]