Steel-Speaker-by-Joey-Roth-01

Steel Speaker by Joey Roth

Steel Speaker is a wireless omnidirectional speaker.
Steel Speaker is a mass-loaded transmission line that uses quarter-wave harmonics to extend the driver’s bass response.

A central divider a splits the enclosure into two halves, creating a folded 24″ transmission line.
The port b sits a few inches from the end of the line and the driver c sits at the middle. This positioning eliminates all harmonics other than the first, lowest harmonic, which is tuned to extend the bass response.

The hardwood ball d diffuses sound from the front of the driver in all directions. It also houses the Bluetooth antenna, since it is the only part of the Steel Speaker that does not block RF.

Specs:
Design: Mass-loaded transmission line (MLTL)
Amplifier: Bridged mono TPA3118
Inputs: Bluetooth 4.0, RCA
Driver: Fountek FR58EX
Dimensions (L x W x H): 3 x 4 x 15.5 in. (7.62 x 10.16 x 39.37 cm)
Weight: 12 lbs. (5.5 kg)

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