N50 Mini Speakers PUI Audio N50 Mini Speakers are designed to create high-fidelity, full-range output, and maximum Sound Pressure Level (SPL) in a small form factor. The mini-sized speakers use high-grade N50 Neodymium magnetic motors for high drive energy. These speakers utilize premium cones and surrounds to provide excellent sound quality. PUI Audio N50 mini speakers feature a multi-spoke polymer frame that prevents power compression and allows heat to dissipate from the voice coil. These speakers offer different thickness variants and operate at a -20°C to +60°C temperature range.