Digital Speaker RB-2822004G-006R
The RB-2822004G-006R digital speaker is characterized by its compact and robust design, with dimensions measuring Φ28.5*22.2*7.2mm and a weight of 4.67 grams. Constructed with Nd-Fe-B magnet material and featuring a magnet size of Φ9.5×1.2T, this speaker offers an impedance of 4 ± 15% Ohm at 2000Hz and a power rating of 2.0W (normal) and 2.5W (maximum).
Operating within a frequency output (FO) range of 850±20% Hz, the speaker achieves a sound pressure level (SPL) of 96±3dB over a
frequency range of 20-20KHZ, with distortion limited to a maximum of 10%. Abnormal sound tests are conducted using 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, ensuring correct polarity.
The speaker is designed to withstand temperatures ranging from -25°C to +65°C during operation and storage. Load testing involves subjecting it to white noise for 96 hours at 2.83 W input power. High andlow-temperature tests are conducted at +65±2°C and -25±2°C respectively, each lasting 96 hours. Additionally, a humidity test is performed at +40±2°C with a relative humidity of 90~95% for 96 hours.
Vibration tests are conducted at 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. The speaker undergoes a drop test, where it is subjected to a 1 M free fall on a concrete floor, repeated 10 times to evaluate itsdurability under impact. Finally, a temperature cycle test is conducted at 25 + 65°C for 5 cycles to ensure its performance under varying temperature conditions.