Midsize Soundbox RB-7824LM04-1

The RB-7824LM04-1 soundbox speaker is designed with a diameter of Φ78*24.0mm and weighs 63g. It incorporates ferrite magnet material with a Φ40x8.0T magnet size. Operating at an impedance of 4±15% Ohm at 1000Hz with 1V input, this speaker delivers a normal power rating of 2.5W, with a maximum power rating of 3W.

Its fundamental frequency (FO) is 445±20% Hz, generating a sound pressure level (SPL) of 101±3dB across the frequency range from F0 to 20,000Hz, ensuring distortion remains under

5%. During abnormal sound tests, it must function normally when subjected to 3.16 volts sine wave.

Polarity is indicated by a red “+” or “Marked” terminal, with the diaphragm moving forward when a positive DC is applied. The RB-7824LM04-1 operates within a temperature range of -20°C to +55°C and can be 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, a high-temperature test at +65±2°C for 96hours, 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-7824LM04-1 soundbox speaker has a minimum order quantity (MOQ) of 10,000 units.