How to estimate SPL from a microphone output ?
24/11/2025
When developing audio devices involving microphones, knowing the actual Sound Pressure Level (SPL) hitting your sensor is crucial. It…
When developing audio devices involving microphones, knowing the actual Sound Pressure Level (SPL) hitting your sensor is crucial. It…
Speaker modules are compact units that integrate a speaker element with essential components, such as connector and enclosures, into a single package. They simplify the addition of audio output to devices by providing a ready-to-use solution that requires minimal external parts. Commonly used in smartphones, IoT devices, and other electronics, these modules offer ease of integration and consistent performance, accelerating product development and enhancing sound quality.
| Image | Name | Description | Dimensions (LxWxH) [mm] | Nominal Power [W] | Sensitivity @ rated voltage/1m [dB SPL] | F0 (Hz) |
|---|---|---|---|---|---|---|
 | BOX260520 | SPK box with 11x15 speaker | 38x22x16 | 1 | 87 | 800 |
| BOX1-18082 series | SPK Box with CR1511L030UN8-2 | 40x12x4 | 0.8 | 70 | 1000 |
| BOX1-17041-2 | SPK Box with BR1511L035UN6, 32mm wires and connector | 17.4x13.8x13 | 0.7 | 72 | 900 |
| BOX-CR3411 | SPK Box with CR3411S040BN4 and 100mm wires | 65x14x11 | 2 | 75 | 580 |
| BOX200401-V2 | SPK Box with TEBM28C10-4, 270mm wires and MOLEX 4364-00201 | 96x65x38.5 | 10 | 84 | 300 |
| BOX1-14074-4 | SPK Box with BR1511L035UN6 and 18mm wires | 30x16x6 | 1 | 72 | 900 |
Speaker modules are compact units that integrate a speaker element with essential components, such as connector and enclosures, into a single package. They simplify the addition of audio output to devices by providing a ready-to-use solution that requires minimal external parts. Commonly used in smartphones, IoT devices, and other electronics, these modules offer ease of integration and consistent performance, accelerating product development and enhancing sound quality.
| Image | Name | Description | Dimensions (LxWxH) [mm] | Nominal Power [W] | Sensitivity @ rated voltage/1m [dB SPL] | F0 (Hz) |
|---|---|---|---|---|---|---|
| BOX260520 | SPK box with 11x15 speaker | 38x22x16 | 1 | 87 | 800 |
|
| BOX1-18082 series | SPK Box with CR1511L030UN8-2 | 40x12x4 | 0.8 | 70 | 1000 |
|
| BOX1-17041-2 | SPK Box with BR1511L035UN6, 32mm wires and connector | 17.4x13.8x13 | 0.7 | 72 | 900 |
|
| BOX-CR3411 | SPK Box with CR3411S040BN4 and 100mm wires | 65x14x11 | 2 | 75 | 580 |
|
| BOX200401-V2 | SPK Box with TEBM28C10-4, 270mm wires and MOLEX 4364-00201 | 96x65x38.5 | 10 | 84 | 300 |
|
| BOX1-14074-4 | SPK Box with BR1511L035UN6 and 18mm wires | 30x16x6 | 1 | 72 | 900 |
When developing audio devices involving microphones, knowing the actual Sound Pressure Level (SPL) hitting your sensor is crucial. It…
When developing audio devices involving microphones, knowing the actual Sound Pressure Level (SPL) hitting your sensor is crucial. It…
Speaker modules are compact units that integrate a speaker element with essential components, such as connector and enclosures, into a single package. They simplify the addition of audio output to devices by providing a ready-to-use solution that requires minimal external parts. Commonly used in smartphones, IoT devices, and other electronics, these modules offer ease of integration and consistent performance, accelerating product development and enhancing sound quality.
| Image | Name | Description | Dimensions (LxWxH) [mm] | Nominal Power [W] | Sensitivity @ rated voltage/1m [dB SPL] | F0 (Hz) |
|---|---|---|---|---|---|---|
| BOX260520 | SPK box with 11x15 speaker | 38x22x16 | 1 | 87 | 800 |
|
| BOX1-18082 series | SPK Box with CR1511L030UN8-2 | 40x12x4 | 0.8 | 70 | 1000 |
|
| BOX1-17041-2 | SPK Box with BR1511L035UN6, 32mm wires and connector | 17.4x13.8x13 | 0.7 | 72 | 900 |
|
| BOX-CR3411 | SPK Box with CR3411S040BN4 and 100mm wires | 65x14x11 | 2 | 75 | 580 |
|
| BOX200401-V2 | SPK Box with TEBM28C10-4, 270mm wires and MOLEX 4364-00201 | 96x65x38.5 | 10 | 84 | 300 |
|
| BOX1-14074-4 | SPK Box with BR1511L035UN6 and 18mm wires | 30x16x6 | 1 | 72 | 900 |