The RB-M28008G-002R soundbox speaker is designed to deliver high-quality audio performance in a compact and lightweight package. With dimensions of Φ28.0*12mm and weighing only 16g, it offers versatility and portability for various applications.
Featuring Nd-Fe-B magnet material and a magnet size of Φ15.5×2.3T, this speaker provides reliable sound reproduction with a nominal impedance of 8 ± 15% Ohm. It has a power rating of 1W (normal) and 2mW (maximum), ensuring sufficient audio output
for a range of audio devices.
The RB-M28008G-002R offers a frequency range of 370±20% Hz and a sound pressure level (SPL) of 92±3dB, delivering clear and powerful sound across a wide range of frequencies from FO to 20,000Hz.
To ensure quality and reliability, this speaker undergoes rigorous testing procedures. It must pass a normal test using a 2.83V sine wave across a frequency range of 50~5kHz, confirming its ability to deliver consistent and accurate sound.
The speaker's polarity isverified by observing the movement of the diaphragm when a positive DC current is applied to the voice coil terminal marked + or red. This ensures proper alignment for optimal sound reproduction.
It operates reliably in temperatures ranging from -20°C to +60°C and can be safely stored in temperatures from -25°C to +65°C. Additionally, it undergoes temperature testing, including exposure to extreme temperatures and humidity levels, to ensure durability and resilience.
The RB-M28008G-002R isalso subjected to vibration testing at a frequency of 30±15 Hz and an amplitude of 1.5 mm for 2 hours per axis (x, y, z), as well as a drop test of 1M onto a concrete floor, repeated 12 times. Furthermore, it undergoes temperature cycle testing to evaluate its performance under varying temperature conditions.
With its compact size, lightweight design, and robust performance, the RB-M28008G-002R soundbox speaker is an ideal choice for applications where space is limited, delivering clear andreliable audio reproduction with precision and durability.
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| Model: | RB-M28008G-002R |
|---|---|
| Model: | RB-M28008G-002R |
| Type: | SoundbarSpeaker |
| Dimension: | Φ28.0*12mm |
| Weight: | 16g |
| MagnetMaterial: | Nd-Fe-B |
| MagnetSize: | Φ15.5×2.3T |
| Impedance: | 8 ± 15% Ohm |
| PowerRatingNormal: | 1W |
| PowerRatingMaximum: | 2mW |
| FO: | 370±20% Hz |
| SPL: | 92±3dB |
| FrequencyRange: | FO~20,000Hz |
| Distortion: | 10% Maximum |
| AbnormalSoundTest: | Must be Normal Tested by 2.83 Volts. Sine wave for50~5kHz |
| Polarity: | Diaphragm Shall Move Forward When Apply a Positive DC. Red “+” or“ Marked” Terminal |
| OperatingTemperature: | -20 °C to +60 °C |
| StorageTemperature: | -25 °C to +65 °C |
| LoadTest: | white noise for 96 hours at 1.0 W input power. |
| HighTemperatureTest: | +65±2 °C 96hours |
| LowTemperatureTest: | -25±2 °C 96hours |
| HumidityTest: | +40±2 °C relative humidity 90~95%R.H 96hours |
| VibrationTest: | Frequency 30±15 Hz, Amplitude 1.5 mm for 2 Hours per axis(x. y. z axis) |
| DropTest: | 1 M free falling on Concrete floor, 12 times. |
| TemperatureCycleTest: | 25 + 65 C 5 Cycles Temperature test. |
| MOQ: | 10000 |
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