{"product_id":"ssm2167-microphone-preamplifier-board-compressor-limiter-noise-gate-dc-3v-5v","title":"SSM2167 Mic Preamp Board – Compressor, Limiter \u0026 Noise Gate DC 3-5V","description":"\n\u003ch2\u003eSSM2167 Microphone Preamplifier Board – Compressor, Limiter \u0026amp; Noise Gate Module\u003c\/h2\u003e\n\u003cp\u003eUpgrade your audio signal chain with the \u003cstrong\u003eSSM2167 Microphone Preamplifier Board\u003c\/strong\u003e — a compact, high-performance preamp module featuring built-in compression, limiting, and noise gate functionality. Designed around the legendary SSM2167 IC, this low-voltage (DC 3V–5V) module is perfect for DIY audio projects, voice recorders, Raspberry Pi builds, Arduino microphone inputs, and any application demanding clean, intelligible audio with minimal noise. Made in Mainland China.\u003c\/p\u003e\n\n\u003ch3\u003eWhy Choose the SSM2167 Preamp Module?\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLow Voltage Operation (DC 3V–5V):\u003c\/strong\u003e Integrates seamlessly into battery-powered and low-power embedded systems without requiring a separate high-voltage supply.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUltra-Low Noise Design:\u003c\/strong\u003e Minimizes unwanted background hiss and interference, delivering clean and accurate audio reproduction every time.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBuilt-In Dynamic Compression:\u003c\/strong\u003e Automatically reduces peak signal levels and boosts quieter sounds, keeping your audio at a consistent, intelligible level without clipping.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNoise Gate Function:\u003c\/strong\u003e Selectively attenuates signals that fall below a set threshold — amplifying only desired sounds like speech while suppressing background noise in the output.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLow Power Consumption:\u003c\/strong\u003e Energy-efficient design makes it ideal for portable and battery-operated applications without sacrificing audio quality.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCompact Form Factor:\u003c\/strong\u003e Measures just 22×14×3mm (approx. 0.87×0.55×0.12 in) — fits into tight enclosures and compact PCB layouts with ease.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHigh Clarity Audio Output:\u003c\/strong\u003e Enhanced voice intelligibility thanks to combined compression and noise gate processing — far superior to standard op-amp preamplifier circuits.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eIC:\u003c\/strong\u003e SSM2167\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOperating Voltage:\u003c\/strong\u003e DC 3V – 5V\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Mono Microphone Preamplifier Module\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFeatures:\u003c\/strong\u003e Compression, Limiting, Noise Gate\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDimensions:\u003c\/strong\u003e 22 × 14 × 3 mm \/ 0.87 × 0.55 × 0.12 inch\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCondition:\u003c\/strong\u003e Brand New\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCountry of Origin:\u003c\/strong\u003e Made in Mainland China\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat's in the Box?\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e1 × SSM2167 Microphone Preamplifier Board\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eGreat For\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eRaspberry Pi, Arduino \u0026amp; microcontroller audio projects\u003c\/li\u003e\n  \u003cli\u003eDIY voice recorders and intercom systems\u003c\/li\u003e\n  \u003cli\u003ePortable PA and amplification systems\u003c\/li\u003e\n  \u003cli\u003eNoise-sensitive audio signal chains\u003c\/li\u003e\n  \u003cli\u003eBattery-powered audio equipment\u003c\/li\u003e\n  \u003cli\u003eEmbedded speech recognition systems\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eFor further reading on audio signal processing standards and electronics safety, visit the \u003ca href=\"https:\/\/www.nist.gov\/topics\/electronics\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eNational Institute of Standards and Technology (NIST) Electronics Resources\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003ch3\u003eYou May Also Like\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003ca href=\"\/products\/22awg-glass-tube-fuse-holder-5x20mm-6x30mm-screw-type-10-pack\"\u003e10-Pack 22AWG Glass Tube Fuse Holder 5x20mm \u0026amp; 6x30mm Screw\u003c\/a\u003e — protect your circuits with reliable fuse holders.\u003c\/li\u003e\n  \u003cli\u003e\n\u003ca href=\"\/products\/140w-usb-c-fast-charging-adapter-auto-power-off-overcharge-protection\"\u003e140W USB-C Fast Charger with Auto Power-Off Overcharge Protection\u003c\/a\u003e — keep your devices powered safely.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cem\u003e\u003cstrong\u003eNote:\u003c\/strong\u003e Due to variations in monitor calibration and lighting, the actual product color may differ slightly from images shown. Please allow ±1–2cm measurement tolerance due to manual measurement.\u003c\/em\u003e\u003c\/p\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eQ: What voltage does the SSM2167 microphone preamplifier board require?\u003c\/h4\u003e\n\u003cp\u003eA: The SSM2167 preamp board operates on a supply voltage of DC 3V to 5V, making it compatible with a wide range of low-power systems including 3.3V and 5V microcontrollers such as Arduino and Raspberry Pi.\u003c\/p\u003e\n\n\u003ch4\u003eQ: What is the difference between compression and a noise gate in this preamp module?\u003c\/h4\u003e\n\u003cp\u003eA: The \u003cstrong\u003ecompressor\u003c\/strong\u003e reduces the dynamic range of the microphone signal — it lowers loud peaks and adds gain to quieter sounds, resulting in a more consistent audio level. The \u003cstrong\u003enoise gate\u003c\/strong\u003e attenuates signals that fall below a certain threshold, so only intentional sounds (like speech) are amplified while ambient background noise is suppressed. Together, these features significantly improve voice clarity.\u003c\/p\u003e\n\n\u003ch4\u003eQ: Can this SSM2167 preamp board be used in battery-powered projects?\u003c\/h4\u003e\n\u003cp\u003eA: Absolutely. The module's low voltage (3V–5V) and low power consumption design make it an excellent choice for battery-powered audio applications, portable recorders, wearables, and other energy-sensitive embedded systems.\u003c\/p\u003e\n\n\u003ch4\u003eQ: What are the physical dimensions of the SSM2167 preamplifier module?\u003c\/h4\u003e\n\u003cp\u003eA: The board measures 22 × 14 × 3 mm (approximately 0.87 × 0.55 × 0.12 inches), making it extremely compact and easy to integrate into tight PCB layouts or small enclosures.\u003c\/p\u003e\n\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"What voltage does the SSM2167 microphone preamplifier board require?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"The SSM2167 preamp board operates on a supply voltage of DC 3V to 5V, making it compatible with a wide range of low-power systems including 3.3V and 5V microcontrollers such as Arduino and Raspberry Pi.\"}}, {\"@type\": \"Question\", \"name\": \"What is the difference between compression and a noise gate in this preamp module?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"The compressor reduces the dynamic range of the microphone signal — it lowers loud peaks and adds gain to quieter sounds, resulting in a more consistent audio level. The noise gate attenuates signals that fall below a certain threshold, so only intentional sounds (like speech) are amplified while ambient background noise is suppressed. Together, these features significantly improve voice clarity.\"}}, {\"@type\": \"Question\", \"name\": \"Can this SSM2167 preamp board be used in battery-powered projects?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Absolutely. The module's low voltage (3V–5V) and low power consumption design make it an excellent choice for battery-powered audio applications, portable recorders, wearables, and other energy-sensitive embedded systems.\"}}, {\"@type\": \"Question\", \"name\": \"What are the physical dimensions of the SSM2167 preamplifier module?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"The board measures 22 × 14 × 3 mm (approximately 0.87 × 0.55 × 0.12 inches), making it extremely compact and easy to integrate into tight PCB layouts or small enclosures.\"}}]}\u003c\/script\u003e","brand":"Oasis Select","offers":[{"title":"Australia","offer_id":47710879744105,"sku":"200007763:201336099","price":21.87,"currency_code":"USD","in_stock":true},{"title":"spain","offer_id":47710879776873,"sku":"200007763:201336104","price":19.69,"currency_code":"USD","in_stock":true},{"title":"United States","offer_id":47710879809641,"sku":"200007763:201336106","price":26.7,"currency_code":"USD","in_stock":true},{"title":"france","offer_id":47710879842409,"sku":"200007763:201336342","price":22.66,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0679\/7931\/3257\/files\/S118886b94b554be78ac1f62ad51bbbae0.webp?v=1782061276","url":"https:\/\/oasis-select.com\/products\/ssm2167-microphone-preamplifier-board-compressor-limiter-noise-gate-dc-3v-5v","provider":"Oasis Select","version":"1.0","type":"link"}