Digital Speaker RB-3070CB08-16R
The RB-3070CB08-16R digital speaker is a robust audio device designed for high-performance digital applications. With dimensions of Φ70.2*30.2*18.6mm and weighing 27g, it offers a balance between size and weight for various audio projects.
Constructed with Nd-Fe-B magnet material and featuring a magnet size of Φ12.5×3.0T, this speaker provides a nominal impedance of 8 ± 15% Ohm at 1000Hz when supplied with 1V input voltage. It has a power rating of 2.0W under normal conditions, with a
maximum power handling capability of 2.5W, ensuring powerful and reliable audio output.
The speaker delivers a fundamental output (FO) frequency of 420±120 Hz, achieving a high sound pressure level (SPL) of 103±3dB across a wide frequency range of 20-20KHZ. With distortion limited to a maximum of 10%, it offers clear and distortion-free sound reproduction.
During abnormal sound tests, the speaker undergoes rigorous testing with a sine wave ranging from 50~5kHz at 4.0 Volts to ensure optimalperformance. 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 -25°C to +65°C, the speaker remains functional and reliable even in extreme temperature conditions. It has a corresponding storage temperature range from -25°C to +65°C.
The speaker undergoes load testing, including exposure to white noise for 96 hours at 2.0W input power. Additionally, itendures 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 to vibrations. Furthermore, it undergoes a drop test where it is subjected to a 1 M free fall on a concrete floor, repeated 10 times toassess its durability under impact.
Additionally, the speaker must pass a salt spray test for 12 hours to ensure its resistance to corrosion and maintain its performance in challenging environments. Overall, the RB-3070CB08-16R digital speaker is designed to deliver reliable and high-quality audio output in demanding applications.