Midsize Soundbox RB-7845LF08

The RB-7845LF08 soundbox speaker is designed with a diameter of Φ78*45.0mm and weighs 107g, making it suitable for various audio applications. It features ferrite magnet material with a Φ40x8.0T magnet size. Operating at an impedance of 8±15% Ohm at 1000Hz with 1V input, this speaker delivers a normal power rating of 10W, with a maximum power rating of 12W.

With a fundamental frequency (FO) of 125±20% Hz, the RB-7845LF08 produces a sound pressure level (SPL) of 99±3dB across its frequency

range from F0 to 20,000Hz, ensuring minimal distortion below 5%. During abnormal sound tests, it must remain functional when subjected to 8.94 volts sine wave.

The diaphragm moves forward when a positive DC is applied, indicated by a red “+” or “Marked” terminal. Operating within a temperature range of -20°C to +55°C, it can be safely stored in temperatures between -25°C to +65°C.

Durability tests include a load test with white noise for 96 hours at 2.0 W input power, ahigh-temperature test at +65±2°C for 96 hours, a low-temperature test at -25±2°C for 96 hours, and a humidity test at +40±2°C with 90~95% relative humidity for 96 hours. Additionally, it undergoes a vibration test at a frequency of 30±15 Hz with an amplitude of 1.5 mm for 2 hours per axis (x, y, z-axis), a drop test of 1 meter free falling on a concrete floor 19 times, and a temperature cycle test ranging from 25°C to 65°C over 5 cycles.

The RB-7845LF08 soundbox speaker has a minimumorder quantity (MOQ) of 10,000 units.