Digital Speaker RB-40008F-47R
The RB-40008F-47R digital speaker is engineered to deliver high-quality audio performance in a compact form factor, making it ideal for a wide range of digital applications. With dimensions of Φ40.0*11.0mm and a weight of 12.4g, it strikes a balance between size, weight, and performance.
Constructed with Nd-Fe-B magnet material and featuring a magnet size of Φ12.5×1.5T, this speaker has an impedance of 8 ± 15% Ohm at 1000Hz when provided with 1V input. It boasts a power rating of 1.0W under
normal conditions and can handle a maximum power of 2.0W, ensuring reliable and robust performance.
The speaker produces a fundamental output (FO) frequency of 600±20% Hz, generating a sound pressure level (SPL) of 101±3dB across a frequency range of 20-5,000Hz. Distortion is limited to a maximum of 10%, guaranteeing clear and accurate sound reproduction.
During abnormal sound tests, the speaker is subjected to a 2.83 Volts sine wave for 50~5kHz, with the diaphragm moving forward when apositive DC is applied to the red “+” or “Marked” terminal, confirming correct polarity.
Operating within a temperature range of -25°C to +65°C, the speaker remains operational and reliable, with a storage temperature range also spanning from -25°C to +65°C. It undergoes load testing, including exposure to white noise for 96 hours at 1.0W input power.
The speaker is subjected to high and low-temperature tests at +65±2°C and -25±2°C, respectively, each lasting 96 hours, alongwith 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 assess its resilience to vibrations. Additionally, it undergoes a drop test where it is subjected to a 1 M free fall on a concrete floor, repeated 10 times to evaluate its durability under impact.
Finally, a temperature cycle test is conducted at 25 + 65°C for 5 cycles toensure its performance under varying temperature conditions, making it suitable for use in diverse environments and applications.