
Stiffness controlled diaphragm as a possible sound attenuation solution
Originally inspired by telegraph and telecom domains, the audio industry has seen first uses of the audio equalization with…
Originally inspired by telegraph and telecom domains, the audio industry has seen first uses of the audio equalization with…
Image | Name | Brand | Diameter / length [mm] | Width [mm] | Thickness [mm] | Port location | Output format | Sensitivity @ 1kHz [dBV re. 1V/Pa] or dBFs | Sensitivity Tolerance [± dB] | SNR [dB] | AOP [dB] | Impedance [Ohm] | Product status |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
MQM-32325-B118 | Knowles | 3.35 | 2.5 | 0.96 | Bottom | Analog Unity Gain | -38.5 | 3 | 67.5 | 123 | 4450 | Not Recommended For New Designs | |
SPH1878LR5H-C | Syntiant | 3.50 | 2.65 | 1.26 | Bottom | Analog Differential | -38 | 0.5 | 66.5 | 134 | 380 | Preferred | |
SPH2878LR5H-1 | Syntiant | 3.50 | 2.65 | 1.26 | Bottom | Analog Differential | -38 | 1 | 67 | 134 | 380 | Preferred | |
SPH2878LR5H-C | Syntiant | 3.50 | 2.65 | 1.26 | Bottom | Analog Differential | -38 | 0.5 | 67 | 134 | 380 | Preferred | |
SPH6855LM4H-1 | Syntiant | 3.50 | 2.65 | 0.98 | Bottom | Digital | -35 | 1 | 68 | 116 | NA | Preferred | |
SPH8855LM4H-C | Syntiant | 3.50 | 2.65 | 0.98 | Bottom | Digital | -26 | 0.5 | 66 | 121 | NA | Preferred | |
SPH9855LM4H-C | Syntiant | 3.50 | 2.65 | 0.98 | Bottom | Digital | -37 | 0.5 | 66 | 132.5 | NA | Preferred | |
SPH18R1LM4H-1 | Syntiant | 3.5 | 2.65 | 1 | Bottom | Digital PDM | -37 | 1 | 68 | 128.5 | NA | Preferred | |
SPH88R1LM4H-1 | Syntiant | 3.5 | 2.65 | 0.98 | Bottom | Digital PDM | -37 | 1 | 68 | 128 | NA | Active | |
SPV08A0LR5H-1 | Syntiant | 2.75 | 1.85 | 0.9 | Bottom | Analog Single Ended | -42 | 1 | 64.5 | 134 | 400 | Not Recommended For New Designs | |
SPM0192LR5H-1 | Syntiant | 4.72 | 3.76 | 1.15 | Bottom | Analog Differential | -34.7 | 1 | 69.5 | 130 | 330 | Active | |
SPV01R9LM4H-1 | Syntiant | 2.75 | 1.85 | 0.8 | Bottom | Digital PDM | -37 | 1 | 64.6 | 132 | NA | Active | |
SPK18R1LM4H-1 | Syntiant | 4 | 3 | 1.2 | Bottom | Digital PDM | -36 | 1 | 70.5 | 128 | NA | Active | |
SPH9241LM4H-1 | Syntiant | 3.5 | 2.65 | 0.98 | Bottom | Digital PDM | -26 | 1 | 64 | 120 | NA | Not Recommended For New Designs | |
SPV01C8LR5H-1 | Syntiant | 2.75 | 1.85 | 0.9 | Bottom | Analog Single Ended | -38 | 1 | 65 | 133 | 440 | Active | |
SPH8878LR5H-1 | Syntiant | 3.5 | 2.65 | 1.26 | Bottom | Analog Differential | -38 | 1 | 64.5 | 131.5 | 380 | Active | |
SPK0833LM4H-B | Syntiant | 4 | 3 | 1 | Bottom | Digital PDM | -26 | 3 | 63 | 122 | NA | Not Recommended For New Designs | |
SPC18P8LM4H-1 | Syntiant | 3.5 | 2 | 1 | Bottom | Digital PDM | -26 | 1 | 65 | 122 | NA | Active | |
SPK1638LM4H-1 | Syntiant | 4 | 3 | 1 | Bottom | Digital PDM | -26 | 1 | 64 | 121 | NA | Active | |
SPK01A0LR5H-1 | Syntiant | 4 | 3 | 1.2 | Bottom | Analog Single Ended | -38 | 1 | 71.8 | 130 | 300 | Preferred | |
SPV61A0LR5H-1 | Syntiant | 2.75 | 1.85 | 0.9 | Bottom | Analog Single Ended | -40 | 1 | 66 | 133 | 300 | Active | |
SPU01C4HR5H-1 | Syntiant | 3.76 | 2.95 | 1.1 | Top | Analog Single Ended | -42 | 1 | 62.5 | 128 | 300 | Active | |
SPU0410HR5H-1 | Syntiant | 3.76 | 2.95 | 1.1 | Top | Analog Single Ended | -42 | 1 | 59 | 125 | 400 | Active | |
SPG08P4HM4H-1 | Syntiant | 4 | 2 | 1.1 | Top | Digital PDM | -26 | 1 | 64 | 120 | NA | Active | |
SPK0838HT4H-B | Syntiant | 4 | 3 | 1 | Top | Digital PDM | -26 | 3 | 64 | 121 | NA | Not Recommended For New Designs | |
SPK1638LM4HB | Syntiant | 4 | 3 | 1 | Bottom | Digital PDM | -26 | 3 | 64.5 | 122 | NA | Not Recommended For New Designs | |
SPH11C3LR5H-1 | Syntiant | 3.5 | 2.65 | 1 | Bottom | Analog Differential | -38 | 1 | 68.5 | 132 | 120 | Active | |
SPH21C3LR5H-1 | Syntiant | 3.5 | 2.65 | 1 | Bottom | Analog Differential | -38 | 1 | 68.5 | 134 | 120 | Active | |
SPH21R9LM4H-1 | Syntiant | 3.4 | 2.65 | 0.99 | Bottom | Digital PDM | -26 | 1 | 65.5 | 132.5 | NA | Active | |
![]() | SPG01R8HT4H-1 | Syntiant | 4 | 2 | 1.1 | Top | Digital PDM | -26 | 1 | 67.5 | 120 | NA | Active |
SPH8690LM4H-1 | Syntiant | 3.5 | 2.65 | 0.98 | Bottom | Digital PDM | -26 | 1 | 68 | 121 | NA | Active | |
SPK11R1LM4H-1 | Syntiant | 4 | 3 | 1.2 | Bottom | Digital PDM | -26 | 1 | 71.2 | 121 | NA | Active | |
SPS11R1LM4H | Syntiant | 3.25 | 2.25 | 0.8 | Bottom | Digital PDM | -37 | 1 | 64.8 | 132 | NA | Active | |
SPVA1A0LR5H-1 | Syntiant | 2.75 | 1.85 | 1.15 | Bottom | Analog Single Ended | -40 | 1 | 68 | 132 | 400 | Active | |
SPH01R9LM4H-1 | Syntiant | 3.4 | 2.65 | 0.98 | Bottom | Digital PDM | -37 | 1 | 65.5 | 132.5 | NA | Active | |
SPH51R3LM4H-1 | Syntiant | 3.5 | 2.65 | 0.98 | Bottom | Digital PDM | -26 | 1 | 66 | 121 | NA | Active | |
MM20-33769-000 | Knowles | 5.204 | 2.5 | 1.3 | Side firering | Analog Unity Gain | -36 | 3 | 67 | 120 | 5100 | Active | |
MM20-34978-000 | Knowles | 4.24 | 2.5 | 1.30 | Side firering | Analog Unity Gain | -35 | 3 | 68 | 119 | 5100 | Active | |
MM25-33663-000 | Knowles | 3.35 | 2.5 | 1.30 | Bottom | Analog Unity Gain | -58 | 3 | 69 | 120.5 | 3150 | Active | |
SPH6655LM4H-1 | Syntiant | 3.50 | 2.65 | 0.98 | Bottom | Digital | -26 | 1 | 68 | 121 | NA | Preferred | |
SPH0141LM4H-1 | Syntiant | 3.5 | 2.65 | 0.98 | Bottom | Digital PDM | -26 | 1 | 62 | 120 | NA | Preferred | |
MM20-33639-B116 | Knowles | 3.35 | 2.5 | 0.96 | Bottom | Analog Unity Gain | -36 | 3 | 69 | 122 | 5100 | Preferred | |
MM20-33366-000 | Knowles | 3.35 | 2.5 | 1.30 | Bottom | Analog Unity Gain | -35 | 3 | 70.5 | 121 | 5100 | Preferred | |
SPH18C3LM4H-1 | Syntiant | 3.5 | 2.65 | 1 | Bottom | Analog Differential | -38 | 1 | 68.5 | 132 | 120 | Not Recommended For New Designs | |
SPH9855LM4H-1 | Syntiant | 3.50 | 2.65 | 0.98 | Bottom | Digital | -37 | 1 | 66 | 132.5 | NA | Preferred | |
SPH1878LR5H-1 | Syntiant | 3.50 | 2.65 | 1.26 | Bottom | Analog Differential | -38 | 1 | 66.5 | 134 | 380 | Preferred | |
SPV1142LR5H-1 | Syntiant | 2.75 | 1.85 | 0.9 | Bottom | Analog Single Ended | -38 | 1 | 62.5 | 124 | 300 | Active | |
SPW0690LM4H-1 | Syntiant | 3.1 | 2.5 | 0.85 | Bottom | Digital PDM | -41 | 1 | 66.5 | 135 | NA | Preferred | |
MQM-32325-B66 | Knowles | 3.35 | 2.5 | 0.96 | Bottom | Analog Unity Gain | -38.5 | 3 | 67.5 | 123 | 4450 | Not Recommended For New Designs | |
MQM-32325-000 | Knowles | 3.35 | 2.5 | 0.96 | Bottom | Analog Unity Gain | -38.5 | 3 | 67.5 | 123 | 4450 | Not Recommended For New Designs | |
MM15-33369-B116 | Knowles | 3.35 | 2.5 | 1.3 | Bottom | Analog Unity Gain | -36 | 3 | 67 | 122 | 5100 | Not Recommended For New Designs | |
MM20-33366-B116 | Knowles | 3.35 | 2.5 | 1.30 | Bottom | Analog Unity Gain | -35 | 3 | 70.5 | 121 | 5100 | Preferred | |
MM20-33639-000 | Knowles | 3.35 | 2.5 | 0.96 | Bottom | Analog Unity Gain | -36 | 3 | 69 | 122 | 5100 | Preferred | |
SPW0878LR5H-1 | Syntiant | 3.1 | 2.5 | 0.96 | Bottom | Analog Differential | -38 | 1 | 65 | 134 | 380 | Not Recommended For New Designs | |
SPV21A0LR5H-1 | Syntiant | 2.75 | 1.85 | 0.9 | Bottom | Analog Single Ended | -42 | 1 | 64.5 | 134 | 400 | Preferred | |
SPV0142LR5H-1 | Syntiant | 2.75 | 1.85 | 0.9 | Bottom | Analog Single Ended | -38 | 1 | 62.5 | 124 | 400 | Preferred | |
SPH0641LM4H-1 | Syntiant | 3.5 | 2.65 | 0.98 | Bottom | Digital PDM | -26 | 1 | 64 | 120 | NA | Not Recommended For New Designs | |
SPH0641LU4H-1 | Syntiant | 3.5 | 2.65 | 0.98 | Bottom | Digital PDM | -26 | 1 | 64.3 | 120 | NA | Preferred | |
SPH0644HM4H-1 | Syntiant | 3.5 | 2.65 | 0.85 | Top | Digital PDM | -36 | 1 | 58 | 131 | NA | Not Recommended For New Designs | |
SPH0655LM4H-1 | Syntiant | 3.5 | 2.65 | 0.98 | Bottom | Digital PDM | -37 | 1 | 66 | 132.5 | NA | Preferred | |
SPH0690LM4H-1 | Syntiant | 3.5 | 2.65 | 0.98 | Bottom | Digital PDM | -35 | 1 | 68.5 | 130 | NA | Active | |
SPK0641HT4H-1 | Syntiant | 4 | 3 | 1 | Top | Digital PDM | -26 | 1 | 64.5 | 120 | NA | Preferred | |
SPK0838HT4H-1 | Syntiant | 4 | 3 | 1 | Top | Digital PDM | -26 | 1 | 64.5 | 120 | NA | Active | |
SPM0687LR5H-1 | Syntiant | 4.72 | 3.76 | 1.25 | Bottom | Analog Differential | -35 | 1 | 70 | 130 | 600 | Not Recommended For New Designs |
Image | Name | Brand | Diameter / length [mm] | Width [mm] | Thickness [mm] | Port location | Output format | Sensitivity @ 1kHz [dBV re. 1V/Pa] or dBFs | Sensitivity Tolerance [± dB] | SNR [dB] | AOP [dB] | Impedance [Ohm] | Product status |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
MQM-32325-B118 | Knowles | 3.35 | 2.5 | 0.96 | Bottom | Analog Unity Gain | -38.5 | 3 | 67.5 | 123 | 4450 | Not Recommended For New Designs | |
SPH1878LR5H-C | Syntiant | 3.50 | 2.65 | 1.26 | Bottom | Analog Differential | -38 | 0.5 | 66.5 | 134 | 380 | Preferred | |
SPH2878LR5H-1 | Syntiant | 3.50 | 2.65 | 1.26 | Bottom | Analog Differential | -38 | 1 | 67 | 134 | 380 | Preferred | |
SPH2878LR5H-C | Syntiant | 3.50 | 2.65 | 1.26 | Bottom | Analog Differential | -38 | 0.5 | 67 | 134 | 380 | Preferred | |
SPH6855LM4H-1 | Syntiant | 3.50 | 2.65 | 0.98 | Bottom | Digital | -35 | 1 | 68 | 116 | NA | Preferred | |
SPH8855LM4H-C | Syntiant | 3.50 | 2.65 | 0.98 | Bottom | Digital | -26 | 0.5 | 66 | 121 | NA | Preferred | |
SPH9855LM4H-C | Syntiant | 3.50 | 2.65 | 0.98 | Bottom | Digital | -37 | 0.5 | 66 | 132.5 | NA | Preferred | |
SPH18R1LM4H-1 | Syntiant | 3.5 | 2.65 | 1 | Bottom | Digital PDM | -37 | 1 | 68 | 128.5 | NA | Preferred | |
SPH88R1LM4H-1 | Syntiant | 3.5 | 2.65 | 0.98 | Bottom | Digital PDM | -37 | 1 | 68 | 128 | NA | Active | |
SPV08A0LR5H-1 | Syntiant | 2.75 | 1.85 | 0.9 | Bottom | Analog Single Ended | -42 | 1 | 64.5 | 134 | 400 | Not Recommended For New Designs | |
SPM0192LR5H-1 | Syntiant | 4.72 | 3.76 | 1.15 | Bottom | Analog Differential | -34.7 | 1 | 69.5 | 130 | 330 | Active | |
SPV01R9LM4H-1 | Syntiant | 2.75 | 1.85 | 0.8 | Bottom | Digital PDM | -37 | 1 | 64.6 | 132 | NA | Active | |
SPK18R1LM4H-1 | Syntiant | 4 | 3 | 1.2 | Bottom | Digital PDM | -36 | 1 | 70.5 | 128 | NA | Active | |
SPH9241LM4H-1 | Syntiant | 3.5 | 2.65 | 0.98 | Bottom | Digital PDM | -26 | 1 | 64 | 120 | NA | Not Recommended For New Designs | |
SPV01C8LR5H-1 | Syntiant | 2.75 | 1.85 | 0.9 | Bottom | Analog Single Ended | -38 | 1 | 65 | 133 | 440 | Active | |
SPH8878LR5H-1 | Syntiant | 3.5 | 2.65 | 1.26 | Bottom | Analog Differential | -38 | 1 | 64.5 | 131.5 | 380 | Active | |
SPK0833LM4H-B | Syntiant | 4 | 3 | 1 | Bottom | Digital PDM | -26 | 3 | 63 | 122 | NA | Not Recommended For New Designs | |
SPC18P8LM4H-1 | Syntiant | 3.5 | 2 | 1 | Bottom | Digital PDM | -26 | 1 | 65 | 122 | NA | Active | |
SPK1638LM4H-1 | Syntiant | 4 | 3 | 1 | Bottom | Digital PDM | -26 | 1 | 64 | 121 | NA | Active | |
SPK01A0LR5H-1 | Syntiant | 4 | 3 | 1.2 | Bottom | Analog Single Ended | -38 | 1 | 71.8 | 130 | 300 | Preferred | |
SPV61A0LR5H-1 | Syntiant | 2.75 | 1.85 | 0.9 | Bottom | Analog Single Ended | -40 | 1 | 66 | 133 | 300 | Active | |
SPU01C4HR5H-1 | Syntiant | 3.76 | 2.95 | 1.1 | Top | Analog Single Ended | -42 | 1 | 62.5 | 128 | 300 | Active | |
SPU0410HR5H-1 | Syntiant | 3.76 | 2.95 | 1.1 | Top | Analog Single Ended | -42 | 1 | 59 | 125 | 400 | Active | |
SPG08P4HM4H-1 | Syntiant | 4 | 2 | 1.1 | Top | Digital PDM | -26 | 1 | 64 | 120 | NA | Active | |
SPK0838HT4H-B | Syntiant | 4 | 3 | 1 | Top | Digital PDM | -26 | 3 | 64 | 121 | NA | Not Recommended For New Designs | |
SPK1638LM4HB | Syntiant | 4 | 3 | 1 | Bottom | Digital PDM | -26 | 3 | 64.5 | 122 | NA | Not Recommended For New Designs | |
SPH11C3LR5H-1 | Syntiant | 3.5 | 2.65 | 1 | Bottom | Analog Differential | -38 | 1 | 68.5 | 132 | 120 | Active | |
SPH21C3LR5H-1 | Syntiant | 3.5 | 2.65 | 1 | Bottom | Analog Differential | -38 | 1 | 68.5 | 134 | 120 | Active | |
SPH21R9LM4H-1 | Syntiant | 3.4 | 2.65 | 0.99 | Bottom | Digital PDM | -26 | 1 | 65.5 | 132.5 | NA | Active | |
![]() | SPG01R8HT4H-1 | Syntiant | 4 | 2 | 1.1 | Top | Digital PDM | -26 | 1 | 67.5 | 120 | NA | Active |
SPH8690LM4H-1 | Syntiant | 3.5 | 2.65 | 0.98 | Bottom | Digital PDM | -26 | 1 | 68 | 121 | NA | Active | |
SPK11R1LM4H-1 | Syntiant | 4 | 3 | 1.2 | Bottom | Digital PDM | -26 | 1 | 71.2 | 121 | NA | Active | |
SPS11R1LM4H | Syntiant | 3.25 | 2.25 | 0.8 | Bottom | Digital PDM | -37 | 1 | 64.8 | 132 | NA | Active | |
SPVA1A0LR5H-1 | Syntiant | 2.75 | 1.85 | 1.15 | Bottom | Analog Single Ended | -40 | 1 | 68 | 132 | 400 | Active | |
SPH01R9LM4H-1 | Syntiant | 3.4 | 2.65 | 0.98 | Bottom | Digital PDM | -37 | 1 | 65.5 | 132.5 | NA | Active | |
SPH51R3LM4H-1 | Syntiant | 3.5 | 2.65 | 0.98 | Bottom | Digital PDM | -26 | 1 | 66 | 121 | NA | Active | |
MM20-33769-000 | Knowles | 5.204 | 2.5 | 1.3 | Side firering | Analog Unity Gain | -36 | 3 | 67 | 120 | 5100 | Active | |
MM20-34978-000 | Knowles | 4.24 | 2.5 | 1.30 | Side firering | Analog Unity Gain | -35 | 3 | 68 | 119 | 5100 | Active | |
MM25-33663-000 | Knowles | 3.35 | 2.5 | 1.30 | Bottom | Analog Unity Gain | -58 | 3 | 69 | 120.5 | 3150 | Active | |
SPH6655LM4H-1 | Syntiant | 3.50 | 2.65 | 0.98 | Bottom | Digital | -26 | 1 | 68 | 121 | NA | Preferred | |
SPH0141LM4H-1 | Syntiant | 3.5 | 2.65 | 0.98 | Bottom | Digital PDM | -26 | 1 | 62 | 120 | NA | Preferred | |
MM20-33639-B116 | Knowles | 3.35 | 2.5 | 0.96 | Bottom | Analog Unity Gain | -36 | 3 | 69 | 122 | 5100 | Preferred | |
MM20-33366-000 | Knowles | 3.35 | 2.5 | 1.30 | Bottom | Analog Unity Gain | -35 | 3 | 70.5 | 121 | 5100 | Preferred | |
SPH18C3LM4H-1 | Syntiant | 3.5 | 2.65 | 1 | Bottom | Analog Differential | -38 | 1 | 68.5 | 132 | 120 | Not Recommended For New Designs | |
SPH9855LM4H-1 | Syntiant | 3.50 | 2.65 | 0.98 | Bottom | Digital | -37 | 1 | 66 | 132.5 | NA | Preferred | |
SPH1878LR5H-1 | Syntiant | 3.50 | 2.65 | 1.26 | Bottom | Analog Differential | -38 | 1 | 66.5 | 134 | 380 | Preferred | |
SPV1142LR5H-1 | Syntiant | 2.75 | 1.85 | 0.9 | Bottom | Analog Single Ended | -38 | 1 | 62.5 | 124 | 300 | Active | |
SPW0690LM4H-1 | Syntiant | 3.1 | 2.5 | 0.85 | Bottom | Digital PDM | -41 | 1 | 66.5 | 135 | NA | Preferred | |
MQM-32325-B66 | Knowles | 3.35 | 2.5 | 0.96 | Bottom | Analog Unity Gain | -38.5 | 3 | 67.5 | 123 | 4450 | Not Recommended For New Designs | |
MQM-32325-000 | Knowles | 3.35 | 2.5 | 0.96 | Bottom | Analog Unity Gain | -38.5 | 3 | 67.5 | 123 | 4450 | Not Recommended For New Designs | |
MM15-33369-B116 | Knowles | 3.35 | 2.5 | 1.3 | Bottom | Analog Unity Gain | -36 | 3 | 67 | 122 | 5100 | Not Recommended For New Designs | |
MM20-33366-B116 | Knowles | 3.35 | 2.5 | 1.30 | Bottom | Analog Unity Gain | -35 | 3 | 70.5 | 121 | 5100 | Preferred | |
MM20-33639-000 | Knowles | 3.35 | 2.5 | 0.96 | Bottom | Analog Unity Gain | -36 | 3 | 69 | 122 | 5100 | Preferred | |
SPW0878LR5H-1 | Syntiant | 3.1 | 2.5 | 0.96 | Bottom | Analog Differential | -38 | 1 | 65 | 134 | 380 | Not Recommended For New Designs | |
SPV21A0LR5H-1 | Syntiant | 2.75 | 1.85 | 0.9 | Bottom | Analog Single Ended | -42 | 1 | 64.5 | 134 | 400 | Preferred | |
SPV0142LR5H-1 | Syntiant | 2.75 | 1.85 | 0.9 | Bottom | Analog Single Ended | -38 | 1 | 62.5 | 124 | 400 | Preferred | |
SPH0641LM4H-1 | Syntiant | 3.5 | 2.65 | 0.98 | Bottom | Digital PDM | -26 | 1 | 64 | 120 | NA | Not Recommended For New Designs | |
SPH0641LU4H-1 | Syntiant | 3.5 | 2.65 | 0.98 | Bottom | Digital PDM | -26 | 1 | 64.3 | 120 | NA | Preferred | |
SPH0644HM4H-1 | Syntiant | 3.5 | 2.65 | 0.85 | Top | Digital PDM | -36 | 1 | 58 | 131 | NA | Not Recommended For New Designs | |
SPH0655LM4H-1 | Syntiant | 3.5 | 2.65 | 0.98 | Bottom | Digital PDM | -37 | 1 | 66 | 132.5 | NA | Preferred | |
SPH0690LM4H-1 | Syntiant | 3.5 | 2.65 | 0.98 | Bottom | Digital PDM | -35 | 1 | 68.5 | 130 | NA | Active | |
SPK0641HT4H-1 | Syntiant | 4 | 3 | 1 | Top | Digital PDM | -26 | 1 | 64.5 | 120 | NA | Preferred | |
SPK0838HT4H-1 | Syntiant | 4 | 3 | 1 | Top | Digital PDM | -26 | 1 | 64.5 | 120 | NA | Active | |
SPM0687LR5H-1 | Syntiant | 4.72 | 3.76 | 1.25 | Bottom | Analog Differential | -35 | 1 | 70 | 130 | 600 | Not Recommended For New Designs |
Originally inspired by telegraph and telecom domains, the audio industry has seen first uses of the audio equalization with…
Originally inspired by telegraph and telecom domains, the audio industry has seen first uses of the audio equalization with…
Image | Name | Brand | Diameter / length [mm] | Width [mm] | Thickness [mm] | Port location | Output format | Sensitivity @ 1kHz [dBV re. 1V/Pa] or dBFs | Sensitivity Tolerance [± dB] | SNR [dB] | AOP [dB] | Impedance [Ohm] | Product status |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
MQM-32325-B118 | Knowles | 3.35 | 2.5 | 0.96 | Bottom | Analog Unity Gain | -38.5 | 3 | 67.5 | 123 | 4450 | Not Recommended For New Designs | |
SPH1878LR5H-C | Syntiant | 3.50 | 2.65 | 1.26 | Bottom | Analog Differential | -38 | 0.5 | 66.5 | 134 | 380 | Preferred | |
SPH2878LR5H-1 | Syntiant | 3.50 | 2.65 | 1.26 | Bottom | Analog Differential | -38 | 1 | 67 | 134 | 380 | Preferred | |
SPH2878LR5H-C | Syntiant | 3.50 | 2.65 | 1.26 | Bottom | Analog Differential | -38 | 0.5 | 67 | 134 | 380 | Preferred | |
SPH6855LM4H-1 | Syntiant | 3.50 | 2.65 | 0.98 | Bottom | Digital | -35 | 1 | 68 | 116 | NA | Preferred | |
SPH8855LM4H-C | Syntiant | 3.50 | 2.65 | 0.98 | Bottom | Digital | -26 | 0.5 | 66 | 121 | NA | Preferred | |
SPH9855LM4H-C | Syntiant | 3.50 | 2.65 | 0.98 | Bottom | Digital | -37 | 0.5 | 66 | 132.5 | NA | Preferred | |
SPH18R1LM4H-1 | Syntiant | 3.5 | 2.65 | 1 | Bottom | Digital PDM | -37 | 1 | 68 | 128.5 | NA | Preferred | |
SPH88R1LM4H-1 | Syntiant | 3.5 | 2.65 | 0.98 | Bottom | Digital PDM | -37 | 1 | 68 | 128 | NA | Active | |
SPV08A0LR5H-1 | Syntiant | 2.75 | 1.85 | 0.9 | Bottom | Analog Single Ended | -42 | 1 | 64.5 | 134 | 400 | Not Recommended For New Designs | |
SPM0192LR5H-1 | Syntiant | 4.72 | 3.76 | 1.15 | Bottom | Analog Differential | -34.7 | 1 | 69.5 | 130 | 330 | Active | |
SPV01R9LM4H-1 | Syntiant | 2.75 | 1.85 | 0.8 | Bottom | Digital PDM | -37 | 1 | 64.6 | 132 | NA | Active | |
SPK18R1LM4H-1 | Syntiant | 4 | 3 | 1.2 | Bottom | Digital PDM | -36 | 1 | 70.5 | 128 | NA | Active | |
SPH9241LM4H-1 | Syntiant | 3.5 | 2.65 | 0.98 | Bottom | Digital PDM | -26 | 1 | 64 | 120 | NA | Not Recommended For New Designs | |
SPV01C8LR5H-1 | Syntiant | 2.75 | 1.85 | 0.9 | Bottom | Analog Single Ended | -38 | 1 | 65 | 133 | 440 | Active | |
SPH8878LR5H-1 | Syntiant | 3.5 | 2.65 | 1.26 | Bottom | Analog Differential | -38 | 1 | 64.5 | 131.5 | 380 | Active | |
SPK0833LM4H-B | Syntiant | 4 | 3 | 1 | Bottom | Digital PDM | -26 | 3 | 63 | 122 | NA | Not Recommended For New Designs | |
SPC18P8LM4H-1 | Syntiant | 3.5 | 2 | 1 | Bottom | Digital PDM | -26 | 1 | 65 | 122 | NA | Active | |
SPK1638LM4H-1 | Syntiant | 4 | 3 | 1 | Bottom | Digital PDM | -26 | 1 | 64 | 121 | NA | Active | |
SPK01A0LR5H-1 | Syntiant | 4 | 3 | 1.2 | Bottom | Analog Single Ended | -38 | 1 | 71.8 | 130 | 300 | Preferred | |
SPV61A0LR5H-1 | Syntiant | 2.75 | 1.85 | 0.9 | Bottom | Analog Single Ended | -40 | 1 | 66 | 133 | 300 | Active | |
SPU01C4HR5H-1 | Syntiant | 3.76 | 2.95 | 1.1 | Top | Analog Single Ended | -42 | 1 | 62.5 | 128 | 300 | Active | |
SPU0410HR5H-1 | Syntiant | 3.76 | 2.95 | 1.1 | Top | Analog Single Ended | -42 | 1 | 59 | 125 | 400 | Active | |
SPG08P4HM4H-1 | Syntiant | 4 | 2 | 1.1 | Top | Digital PDM | -26 | 1 | 64 | 120 | NA | Active | |
SPK0838HT4H-B | Syntiant | 4 | 3 | 1 | Top | Digital PDM | -26 | 3 | 64 | 121 | NA | Not Recommended For New Designs | |
SPK1638LM4HB | Syntiant | 4 | 3 | 1 | Bottom | Digital PDM | -26 | 3 | 64.5 | 122 | NA | Not Recommended For New Designs | |
SPH11C3LR5H-1 | Syntiant | 3.5 | 2.65 | 1 | Bottom | Analog Differential | -38 | 1 | 68.5 | 132 | 120 | Active | |
SPH21C3LR5H-1 | Syntiant | 3.5 | 2.65 | 1 | Bottom | Analog Differential | -38 | 1 | 68.5 | 134 | 120 | Active | |
SPH21R9LM4H-1 | Syntiant | 3.4 | 2.65 | 0.99 | Bottom | Digital PDM | -26 | 1 | 65.5 | 132.5 | NA | Active | |
![]() | SPG01R8HT4H-1 | Syntiant | 4 | 2 | 1.1 | Top | Digital PDM | -26 | 1 | 67.5 | 120 | NA | Active |
SPH8690LM4H-1 | Syntiant | 3.5 | 2.65 | 0.98 | Bottom | Digital PDM | -26 | 1 | 68 | 121 | NA | Active | |
SPK11R1LM4H-1 | Syntiant | 4 | 3 | 1.2 | Bottom | Digital PDM | -26 | 1 | 71.2 | 121 | NA | Active | |
SPS11R1LM4H | Syntiant | 3.25 | 2.25 | 0.8 | Bottom | Digital PDM | -37 | 1 | 64.8 | 132 | NA | Active | |
SPVA1A0LR5H-1 | Syntiant | 2.75 | 1.85 | 1.15 | Bottom | Analog Single Ended | -40 | 1 | 68 | 132 | 400 | Active | |
SPH01R9LM4H-1 | Syntiant | 3.4 | 2.65 | 0.98 | Bottom | Digital PDM | -37 | 1 | 65.5 | 132.5 | NA | Active | |
SPH51R3LM4H-1 | Syntiant | 3.5 | 2.65 | 0.98 | Bottom | Digital PDM | -26 | 1 | 66 | 121 | NA | Active | |
MM20-33769-000 | Knowles | 5.204 | 2.5 | 1.3 | Side firering | Analog Unity Gain | -36 | 3 | 67 | 120 | 5100 | Active | |
MM20-34978-000 | Knowles | 4.24 | 2.5 | 1.30 | Side firering | Analog Unity Gain | -35 | 3 | 68 | 119 | 5100 | Active | |
MM25-33663-000 | Knowles | 3.35 | 2.5 | 1.30 | Bottom | Analog Unity Gain | -58 | 3 | 69 | 120.5 | 3150 | Active | |
SPH6655LM4H-1 | Syntiant | 3.50 | 2.65 | 0.98 | Bottom | Digital | -26 | 1 | 68 | 121 | NA | Preferred | |
SPH0141LM4H-1 | Syntiant | 3.5 | 2.65 | 0.98 | Bottom | Digital PDM | -26 | 1 | 62 | 120 | NA | Preferred | |
MM20-33639-B116 | Knowles | 3.35 | 2.5 | 0.96 | Bottom | Analog Unity Gain | -36 | 3 | 69 | 122 | 5100 | Preferred | |
MM20-33366-000 | Knowles | 3.35 | 2.5 | 1.30 | Bottom | Analog Unity Gain | -35 | 3 | 70.5 | 121 | 5100 | Preferred | |
SPH18C3LM4H-1 | Syntiant | 3.5 | 2.65 | 1 | Bottom | Analog Differential | -38 | 1 | 68.5 | 132 | 120 | Not Recommended For New Designs | |
SPH9855LM4H-1 | Syntiant | 3.50 | 2.65 | 0.98 | Bottom | Digital | -37 | 1 | 66 | 132.5 | NA | Preferred | |
SPH1878LR5H-1 | Syntiant | 3.50 | 2.65 | 1.26 | Bottom | Analog Differential | -38 | 1 | 66.5 | 134 | 380 | Preferred | |
SPV1142LR5H-1 | Syntiant | 2.75 | 1.85 | 0.9 | Bottom | Analog Single Ended | -38 | 1 | 62.5 | 124 | 300 | Active | |
SPW0690LM4H-1 | Syntiant | 3.1 | 2.5 | 0.85 | Bottom | Digital PDM | -41 | 1 | 66.5 | 135 | NA | Preferred | |
MQM-32325-B66 | Knowles | 3.35 | 2.5 | 0.96 | Bottom | Analog Unity Gain | -38.5 | 3 | 67.5 | 123 | 4450 | Not Recommended For New Designs | |
MQM-32325-000 | Knowles | 3.35 | 2.5 | 0.96 | Bottom | Analog Unity Gain | -38.5 | 3 | 67.5 | 123 | 4450 | Not Recommended For New Designs | |
MM15-33369-B116 | Knowles | 3.35 | 2.5 | 1.3 | Bottom | Analog Unity Gain | -36 | 3 | 67 | 122 | 5100 | Not Recommended For New Designs | |
MM20-33366-B116 | Knowles | 3.35 | 2.5 | 1.30 | Bottom | Analog Unity Gain | -35 | 3 | 70.5 | 121 | 5100 | Preferred | |
MM20-33639-000 | Knowles | 3.35 | 2.5 | 0.96 | Bottom | Analog Unity Gain | -36 | 3 | 69 | 122 | 5100 | Preferred | |
SPW0878LR5H-1 | Syntiant | 3.1 | 2.5 | 0.96 | Bottom | Analog Differential | -38 | 1 | 65 | 134 | 380 | Not Recommended For New Designs | |
SPV21A0LR5H-1 | Syntiant | 2.75 | 1.85 | 0.9 | Bottom | Analog Single Ended | -42 | 1 | 64.5 | 134 | 400 | Preferred | |
SPV0142LR5H-1 | Syntiant | 2.75 | 1.85 | 0.9 | Bottom | Analog Single Ended | -38 | 1 | 62.5 | 124 | 400 | Preferred | |
SPH0641LM4H-1 | Syntiant | 3.5 | 2.65 | 0.98 | Bottom | Digital PDM | -26 | 1 | 64 | 120 | NA | Not Recommended For New Designs | |
SPH0641LU4H-1 | Syntiant | 3.5 | 2.65 | 0.98 | Bottom | Digital PDM | -26 | 1 | 64.3 | 120 | NA | Preferred | |
SPH0644HM4H-1 | Syntiant | 3.5 | 2.65 | 0.85 | Top | Digital PDM | -36 | 1 | 58 | 131 | NA | Not Recommended For New Designs | |
SPH0655LM4H-1 | Syntiant | 3.5 | 2.65 | 0.98 | Bottom | Digital PDM | -37 | 1 | 66 | 132.5 | NA | Preferred | |
SPH0690LM4H-1 | Syntiant | 3.5 | 2.65 | 0.98 | Bottom | Digital PDM | -35 | 1 | 68.5 | 130 | NA | Active | |
SPK0641HT4H-1 | Syntiant | 4 | 3 | 1 | Top | Digital PDM | -26 | 1 | 64.5 | 120 | NA | Preferred | |
SPK0838HT4H-1 | Syntiant | 4 | 3 | 1 | Top | Digital PDM | -26 | 1 | 64.5 | 120 | NA | Active | |
SPM0687LR5H-1 | Syntiant | 4.72 | 3.76 | 1.25 | Bottom | Analog Differential | -35 | 1 | 70 | 130 | 600 | Not Recommended For New Designs |
Headquarters
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2, Allée des Cerisiers
F – 94042 Créteil FRANCE
Tel EU : +33 1 48 92 90 02
Tel NA : +1 (919) 481 6896
SELTECH is an international solution provider with deep expertise in acoustics and sensors. We offer innovative solutions to our customers’ challenges, from design to production.