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Hydz 28*31 MM 4 Ohm 3W Small Cavity Smart Home Appliances Used Rectangular Audio Speaker ABS Material 200-3000Hz 893dB
Product Description
Product Description
| No. | Item | Specification | Testing Condition |
|---|---|---|---|
| - | Our Part No. | 2831Box4R3W | - |
| 1 | Rated Imp | 4ohm ±15% | At 1khz 2.0Vrms |
| 2 | Resonant Freq | 450Hz ±15% | Without Baffle |
| 3 | Output S.P.L. | 89±3dB | At 0.1m 2W 0.8,1.0,1.5KHz Average |
| 4 | Rated Power | at 2.5W | at 2.0Vrms |
| 5 | Max Power | at 3W | at 3.0Vrms |
| 6 | Frequency Range | 200~3000Hz | - |
| 7 | Operation | Must be normal at rated frequency range | Programe Source 1.0 WFO 10khz |
| 8 | Buzzes & Rattles | Should not be audible buzz and rattle at Rated Frequency Range | Sine wave between at 4.0 Vrms/FO-10Khz |
| 9 | THD | 5% MAX | Rated Power Input 1000HZ |
| 10 | Polarity | Dia | |
| 11 | Operating Temperature | -20°C to +50°C | |
| 12 | Storage Temperature | -25°C to +60°C | |
| 13 | Weight | 9.85g/PC | |
Introduction
1. 28*31mm rectangle shape, loud cavity recessed speaker 4Ohm 3W
2. Loud speaker widely used in smart home appliances etc.,
3. The built-in advanced vibration material is preferred, and it has waterproof function, high temperature and cold resistance.
We promote below types: Ø 15mm Ø20mm Ø23mm Ø28mm Ø30mm Ø36mm Ø40mm Ø50mm Ø57mm; Square shapes: 18*10 09*16 15*11 18*13 05*18 2014 2415 20*30 35*16 20*40 09*22 09*28; Different shape cavity designated acceptable. Several types, good quality and provision of any design customization based on samples. Welcome to contact us!
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Frequently Asked Questions (FAQ)
What are the main applications of this 28*31mm cavity speaker?
This rectangular audio speaker is widely used in smart home appliances, IoT devices, security systems, and compact electronic equipment requiring clear audio playback in small spaces.
What is the rated power output and impedance of this speaker?
The speaker operates with a rated power of 2.5W (maximum power up to 3W) and features a nominal impedance of 4 Ohm ±15%.
Is the speaker waterproof and temperature resistant?
Yes, built with advanced vibration diaphragms and ABS cavity material, it offers waterproof protection and high resistance to both high and low temperatures, operating stably between -20°C and +50°C.
Do you provide custom speaker sizes or cavity designs?
Yes, we offer full design customization based on your samples or drawings. We provide various standard round (Ø 15mm to Ø 57mm) and square shapes, and designated cavity structures are acceptable.
What is the frequency response range of this component?
The speaker covers a frequency response range of 200Hz to 3000Hz, ensuring clear sound performance with minimal distortion (THD ≤ 5%).
