Digital Speaker RB-20004F-16R
The RB-40004F-16R digital speaker is engineered to deliver exceptional audio performance in various digital applications. With a diameter of Φ40.0mm and a thickness of 5.0mm, it offers a compact yet powerful solution for audio reproduction. Weighing 9.3g, it strikes a balance between portability and durability.
Constructed with Nd-Fe-B magnet material and a magnet size of Φ12.5×1.5T, this speaker offers an impedance of 4 ± 15% Ohm at 2000Hz when supplied with 1.0V input voltage. It has a
power rating of 2W under normal conditions, with a maximum power handling capability of 2.5W, ensuring clear and dynamic sound output.
The speaker's fundamental output (FO) frequency is 610±20% Hz, accompanied by a sound pressure level (SPL) of 100±3dB across a wide frequency range of 350~7,500Hz. With distortion limited to a maximum of 10%, it delivers distortion-free sound reproduction for an immersive listening experience.
During abnormal sound tests, the speaker undergoes rigoroustesting with a sine wave ranging from 50~5kHz at 2.83 Volts to ensure optimal performance. The diaphragm moves forward when a positive DC is applied to the red “+” or “Marked” terminal, ensuring correct polarity for proper operation.
Operating within a temperature range of -20°C to +55°C, the speaker remains functional and reliable even in varying temperature conditions. It has a corresponding storage temperature range from -25°C to +65°C, ensuring its longevity and performance overtime.
The speaker undergoes load testing, including exposure to white noise for 96 hours at 1.0W input power. Additionally, it endures high-temperature tests at +65±2°C and low-temperature tests at -25±2°C, each lasting 96 hours, along with a humidity test at +40±2°C with a relative humidity of 90~95% for 96 hours.
Vibration tests involve subjecting the speaker to a frequency of 30±15 Hz with an amplitude of 1.5 mm for 2 hours per axis (x, y, z axis) to evaluate its resilience tovibrations. Furthermore, it undergoes a drop test where it is subjected to a 1 M free fall on a concrete floor, repeated 10 times to assess its durability under impact.
Additionally, the speaker must pass a temperature cycle test involving exposure to temperatures ranging from 25°C to +65°C, repeated for 5 cycles, to ensure its reliability under temperature variations. Overall, the RB-40004F-16R digital speaker is designed to meet the demands of modern digital audio applications withreliability and exceptional performance.