Digital Speaker RB-40008F-178R-C1
The RB-40008F-178R-C1 digital speaker is designed to provide high-quality audio performance in a compact package, suitable for a wide range of digital applications. With dimensions of Φ50.0*6.4mm and a weight of 10.3g, it offers a balance of size 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 has a power rating of 1.0W under normal conditions and can
handle a maximum power of 1.5W, ensuring robust and reliable performance.
The speaker delivers a fundamental output (FO) frequency of 350±100 Hz, producing a sound pressure level (SPL) of 99±3dB across a frequency range of 20-20KHZ. Distortion is limited to a maximum of 5%, ensuring clear and accurate sound reproduction.
Abnormal sound tests involve subjecting the speaker to a 2.83 Volts sine wave for 50~5kHz, with the diaphragm moving forward when a positive DC is applied to the red “+”or “Marked” terminal, confirming correct polarity.
Operating within a temperature range of -20°C to +55°C, the speaker can be stored within the range of -25°C to +65°C without compromising its performance. 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 -20±2°C, respectively, each lasting 96 hours, along with a humidity test at +40±2°C with a relative humidityof 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 to ensure its performance under varying temperatureconditions, making it suitable for use in diverse environments and applications.