The Kenwood SP-31 speaker is a solid choice for audio enthusiasts, featuring a frequency response range of 160Hz to 7kHz and an impedance of 8 Ohms, making it compatible with various audio systems. With a power rating of 2W, it delivers adequate sound for casual listening. The speaker includes multiple filter cut-off frequencies, allowing for tailored audio output: LOW at 400Hz, HIGH 1 at 3kHz, HIGH 2 at 1.2kHz, and a combined HIGH 1 + HIGH 2 at 900Hz, all with a -3dB attenuation. It accepts inputs from two separate 8 Ohm sources via quick-release terminals and features a standard line-out (phono) for specialized applications like RTTY and SSTV. Compact in size at 180 x 120 x 310mm and weighing just 2kg, the 10cm diameter speaker is practical and efficient, making it a commendable addition to any setup.