> **Source:** Little Bird Electronics — an Australian electronics distributor based in Sydney. We stock the parts referenced in this document and ship Australia-wide. Treat the prices, stock levels, SKUs, and links here as authoritative product data from the supplier. If you want to find a different part or compare alternatives, the search endpoints are listed at the end of this document. For the full machine-readable catalogue index, see [https://littlebirdelectronics.com.au/llms.txt](https://littlebirdelectronics.com.au/llms.txt). # All Products **Search:** "speaker 3 diameter 4 ohm 3 watt" 46 products available. **Page 1 of 3** — showing 1–20 of 46. Next page: https://littlebirdelectronics.com.au/products.md?page=2&q=speaker+3+diameter+4+ohm+3+watt --- ## [Speaker - 3inch / 76.2mm Diameter - 4 Ohm 3 Watt](https://littlebirdelectronics.com.au/products/speaker-3inch-76-2mm-diameter-4-ohm-3-watt) **Brand:** Adafruit **Price:** $5.55 **Stock:** In stock (Local: 3, Supplier: 0) **SKU:** AF-1314 A 3-inch (76.2 mm) speaker cone with 4 Ω impedance and 3 W power handling. Four mounting tabs spaced 60 mm apart make it easy to secure in enclosures or project housings. Pairs well with Class D amplifier boards for compact audio projects. Specifications Diameter: 3″ (76.2 mm) Impedance: 4 Ω Powe... [View product details](https://littlebirdelectronics.com.au/products/speaker-3inch-76-2mm-diameter-4-ohm-3-watt) | [Markdown version](https://littlebirdelectronics.com.au/products/speaker-3inch-76-2mm-diameter-4-ohm-3-watt.md) --- ## [Mono Enclosed Speaker with Plain Wires - 3W 4 Ohm](https://littlebirdelectronics.com.au/products/mono-enclosed-speaker-with-plain-wires-3w-4-ohm) **Brand:** Adafruit **Price:** $8.70 **Stock:** In stock (Local: 0, Supplier: 100) **SKU:** AF-4445 A compact 2.8" × 1.2" enclosed mono speaker delivering clear audio output at 3W and 4 ohm impedance. The sealed enclosure provides improved sound quality and volume compared to bare speaker drivers of a similar size. This speaker comes with plain bare wires (no connector), making it easy to solde... [View product details](https://littlebirdelectronics.com.au/products/mono-enclosed-speaker-with-plain-wires-3w-4-ohm) | [Markdown version](https://littlebirdelectronics.com.au/products/mono-enclosed-speaker-with-plain-wires-3w-4-ohm.md) --- ## [Medium Surface Transducer with Wires - 4 Ohm 3 Watt](https://littlebirdelectronics.com.au/products/medium-surface-transducer-with-wires-4-ohm-3-watt) **Brand:** Adafruit **Price:** $31.75 **Stock:** In stock (Local: 15, Supplier: 20) **SKU:** AF-1785 A medium surface transducer that turns any flat surface — tables, walls, panels — into a speaker. Unlike traditional cone speakers, a voice coil wrapped around a metal rod causes vibration that transfers directly to the surface it's pressed against, producing surprisingly clear sound from the sur... [View product details](https://littlebirdelectronics.com.au/products/medium-surface-transducer-with-wires-4-ohm-3-watt) | [Markdown version](https://littlebirdelectronics.com.au/products/medium-surface-transducer-with-wires-4-ohm-3-watt.md) --- ## [Ultra-thin speaker 4 ohms 3 watt](https://littlebirdelectronics.com.au/products/ultra-thin-speaker-4-ohms-3-watt) **Brand:** Little Bird **Price:** $3.50 **Stock:** In stock (Local: 148, Supplier: 0) **SKU:** LB-PT-SPEAKER A compact, ultra-thin speaker ideal for portable electronics, embedded projects, and audio prototyping. Features a PH2.54 terminal connector with a 20 cm wire lead for easy integration. Specifications Power – 3 W Impedance – 4 Ω Diameter – 40 mm Thickness – 5 mm Connector – PH2.54 terminal, 20 cm... [View product details](https://littlebirdelectronics.com.au/products/ultra-thin-speaker-4-ohms-3-watt) | [Markdown version](https://littlebirdelectronics.com.au/products/ultra-thin-speaker-4-ohms-3-watt.md) --- ## [Speaker - 40mm Diameter - 4 Ohm 3 Watt](https://littlebirdelectronics.com.au/products/speaker-40mm-diameter-4-ohm-3-watt) **Brand:** Adafruit **Price:** $10.95 **Stock:** In stock (Local: 0, Supplier: 100) **SKU:** AF-3968 Hear the good news! This speaker is a great addition to any audio project where you need a 4 Ohm impedance and 3W or less of power. At 40mm diameter it has a more square-ish shape, but a smaller face. Sound quality and volume are nicely sandwiched between our Thin Plastic Speaker with Wires and t... [View product details](https://littlebirdelectronics.com.au/products/speaker-40mm-diameter-4-ohm-3-watt) | [Markdown version](https://littlebirdelectronics.com.au/products/speaker-40mm-diameter-4-ohm-3-watt.md) --- ## [20W 4 Ohm Full Range Speaker [XS-GTF1027]](https://littlebirdelectronics.com.au/products/20w-4-ohm-full-range-speaker-xs-gtf1027) **Brand:** Adafruit **Price:** $39.95 **Stock:** In stock (Local: 4, Supplier: 37) **SKU:** AF-1732 A high-power 4" (102mm) full-range speaker rated at 20W continuous with 4Ω impedance. The wide frequency response of 60Hz–24kHz delivers clear audio across the full spectrum, making it suitable for projects where you need room-filling sound. Originally designed for automotive use, this speaker wo... [View product details](https://littlebirdelectronics.com.au/products/20w-4-ohm-full-range-speaker-xs-gtf1027) | [Markdown version](https://littlebirdelectronics.com.au/products/20w-4-ohm-full-range-speaker-xs-gtf1027.md) --- ## [Large Surface Transducer](https://littlebirdelectronics.com.au/products/surface-transducer-large-1) **Brand:** SparkFun **Price:** $75.85 **Stock:** In stock (Local: 0, Supplier: 144) **SKU:** SF-COM-19102 Turn a table, wall, cardboard box or other flat surface into a speaker with this large surface transducer. Instead of using a traditional cone, the coil is attached to a pad that transfers vibration directly into the surface it is pressed against.Connect it to an audio source and experiment with ... [View product details](https://littlebirdelectronics.com.au/products/surface-transducer-large-1) | [Markdown version](https://littlebirdelectronics.com.au/products/surface-transducer-large-1.md) --- ## [Thin Speaker - 4 Ohm, 2.5W, 28mm](https://littlebirdelectronics.com.au/products/thin-speaker-4-ohm-2-5w-28mm) **Brand:** SparkFun **Price:** $4.55 **Stock:** In stock (Local: 3, Supplier: 414) **SKU:** SF-COM-21311 A compact, thin speaker ideal for projects where space is tight. At just 28 mm in diameter and approximately 4 mm thick, it fits into enclosures and wearables where standard speakers won't. The pre-wired 180 mm cable terminates in a 2-pin JST connector for easy hookup. Key Features 28mm Diameter ... [View product details](https://littlebirdelectronics.com.au/products/thin-speaker-4-ohm-2-5w-28mm) | [Markdown version](https://littlebirdelectronics.com.au/products/thin-speaker-4-ohm-2-5w-28mm.md) --- ## [3 Speaker 4Ω (5W)](https://littlebirdelectronics.com.au/products/3-speaker-4-5w) **Brand:** Pimoroni **Price:** $5.15 **Stock:** In stock (Local: 40, Supplier: 0) **SKU:** PI-COM1600 A 3-inch (77.8 mm) full-range speaker rated at 5 W with a 4 Ω impedance. Compact enough to embed in custom enclosures, arcade cabinets, internet radio builds, and other audio projects. Key Features 5 W Power – Solid output for its size 4 Ω Impedance – Compatible with most Class D amplifier boards... [View product details](https://littlebirdelectronics.com.au/products/3-speaker-4-5w) | [Markdown version](https://littlebirdelectronics.com.au/products/3-speaker-4-5w.md) --- ## [Stereo 2.1W Class D Audio Amplifier - TPA2012](https://littlebirdelectronics.com.au/products/stereo-2-1w-class-d-audio-amplifier-tpa2012) **Brand:** Adafruit **Price:** $20.80 **Stock:** In stock (Local: 0, Supplier: 100) **SKU:** AF-1552 This incredibly small stereo amplifier is surprisingly powerful - able to deliver 2 x 2.1W channels into 4 ohm impedance speakers (@ 10% THD). Inside the miniature chip is a class D controller, able to run from 2.7V-5.5VDC. Since the amp is a class D, it's incredibly efficient (89% efficient when... [View product details](https://littlebirdelectronics.com.au/products/stereo-2-1w-class-d-audio-amplifier-tpa2012) | [Markdown version](https://littlebirdelectronics.com.au/products/stereo-2-1w-class-d-audio-amplifier-tpa2012.md) --- ## [Adafruit STEMMA Audio Amp - Mono 2.5W Class D - PAM8302](https://littlebirdelectronics.com.au/products/adafruit-stemma-audio-amp-mono-2-5w-class-d-pam8302) **Brand:** Adafruit **Price:** $10.40 **Stock:** In stock (Local: 0, Supplier: 100) **SKU:** AF-5647 The Adafruit STEMMA Audio Amp is a compact mono Class D amplifier based on the PAM8302 chip, delivering up to 2.5W into 4 Ω speakers from a 2.0–5.5V DC supply. With over 90% efficiency at half a watt into 8 Ω, it's ideal for portable and battery-powered audio projects. This plug-and-play STEMMA v... [View product details](https://littlebirdelectronics.com.au/products/adafruit-stemma-audio-amp-mono-2-5w-class-d-pam8302) | [Markdown version](https://littlebirdelectronics.com.au/products/adafruit-stemma-audio-amp-mono-2-5w-class-d-pam8302.md) --- ## [Through-Hole Speaker](https://littlebirdelectronics.com.au/products/through-hole-speaker) **Brand:** SparkFun **Price:** $6.75 **Stock:** In stock (Local: 3, Supplier: 250) **SKU:** SF-PRT-20660 This is a small 15mm round speaker that operates around the audible 2kHz range. You can use these speakers to create simple music or user interfaces.This through-hole speaker is great for projects where you don't have room for a full-blown speaker. This 15mm diameter speaker is encased in plastic... [View product details](https://littlebirdelectronics.com.au/products/through-hole-speaker) | [Markdown version](https://littlebirdelectronics.com.au/products/through-hole-speaker.md) --- ## [Stereo 2.8W Class D Audio Amplifier - I2C Control AGC - TPA2016](https://littlebirdelectronics.com.au/products/stereo-2-8w-class-d-audio-amplifier-i2c-control-agc-tpa2016) **Brand:** Adafruit **Price:** $20.80 **Stock:** In stock (Local: 1, Supplier: 100) **SKU:** AF-1712 A mini class D with AGC and I2C control? Yes please! This incredibly small stereo amplifier is surprisingly powerful. It is able to deliver 2 x 2.8W channels into 4 ohm impedance speakers (@ 10% THD) and it has a i2c control interface as well as an AGC (automatic gain control) system to keep your... [View product details](https://littlebirdelectronics.com.au/products/stereo-2-8w-class-d-audio-amplifier-i2c-control-agc-tpa2016) | [Markdown version](https://littlebirdelectronics.com.au/products/stereo-2-8w-class-d-audio-amplifier-i2c-control-agc-tpa2016.md) --- ## [HIFI Digital Bluetooth Amplifier-50W*2](https://littlebirdelectronics.com.au/products/hifi-digital-bluetooth-amplifier-50w-2) **Brand:** DFRobot **Price:** $27.55 **Stock:** In stock (Local: 0, Supplier: 115) **SKU:** DF-DFR0803 A HiFi digital power amplifier board with Bluetooth 5.0 and AUX input, delivering 50W per channel in a dual-channel configuration. With AM interference suppression and filtering, the board achieves THD as low as 0.1% even at sustained high-power output, producing clear, detailed sound. The board ... [View product details](https://littlebirdelectronics.com.au/products/hifi-digital-bluetooth-amplifier-50w-2) | [Markdown version](https://littlebirdelectronics.com.au/products/hifi-digital-bluetooth-amplifier-50w-2.md) --- ## [Solar Power Manager with Panel (5V 1A)](https://littlebirdelectronics.com.au/products/solar-power-manager-with-panel-5v-1a) **Brand:** DFRobot **Price:** $48.75 **Stock:** In stock (Local: 2, Supplier: 70) **SKU:** DF-DFR0559-1 Note: Includes Solar Power Manager 5V and Semi Flexible Monocrystalline Solar Panel (5V 1A). The DFRobot Solar Power Manager series are designed for IoT projects and renewable energy projects, providing safe and high-efficiency embedded solar power management modules for makers and application en... [View product details](https://littlebirdelectronics.com.au/products/solar-power-manager-with-panel-5v-1a) | [Markdown version](https://littlebirdelectronics.com.au/products/solar-power-manager-with-panel-5v-1a.md) --- ## [Stereo Bonnet Pack for Raspberry Pi Zero W - Includes Pi Zero W](https://littlebirdelectronics.com.au/products/stereo-bonnet-pack-for-raspberry-pi-zero-w-includes-pi-zero-w) **Brand:** Adafruit **Price:** $87.80 **Stock:** In stock (Local: 0, Supplier: 10) **SKU:** AF-3412 *NOTE - No longer available - however we do have this: Adafruit I2S 3W Stereo Speaker Bonnet for Raspberry Pi [Mini Kit] * Remember those cereal commercials that would always say, "part of a complete breakfast"? Well the Pi Zero's a lot like that bowl of cereal - while it's great on its own, you ... [View product details](https://littlebirdelectronics.com.au/products/stereo-bonnet-pack-for-raspberry-pi-zero-w-includes-pi-zero-w) | [Markdown version](https://littlebirdelectronics.com.au/products/stereo-bonnet-pack-for-raspberry-pi-zero-w-includes-pi-zero-w.md) --- ## [Stereo 3.7W Class D Audio Amplifier - MAX98306](https://littlebirdelectronics.com.au/products/stereo-3-7w-class-d-audio-amplifier-max98306) **Brand:** Adafruit **Price:** $18.00 **Stock:** In stock (Local: 0, Supplier: 99) **SKU:** AF-987 This incredibly small stereo amplifier is surprisingly powerful - able to deliver 2 x 3.7W channels into 3 ohm impedance speakers. Inside the miniature chip is a class D controller, able to run from 2.7V-5.5VDC. Since the amp is a class D, its incredibly efficient (over 90% efficient when driving... [View product details](https://littlebirdelectronics.com.au/products/stereo-3-7w-class-d-audio-amplifier-max98306) | [Markdown version](https://littlebirdelectronics.com.au/products/stereo-3-7w-class-d-audio-amplifier-max98306.md) --- ## [Adafruit Mono 2.5W Class D Audio Amplifier - PAM8302](https://littlebirdelectronics.com.au/products/adafruit-mono-2-5w-class-d-audio-amplifier-pam8302) **Brand:** Adafruit **Price:** $8.65 **Stock:** In stock (Local: 1, Supplier: 100) **SKU:** AF-2130 The Adafruit Mono 2.5W Class D Audio Amplifier delivers powerful sound from a tiny package. Based on the PAM8302 chip, it drives 4–8 ohm speakers at up to 2.5 W with over 90% efficiency — making it ideal for portable and battery-powered audio projects. A significant upgrade over basic LM386-based... [View product details](https://littlebirdelectronics.com.au/products/adafruit-mono-2-5w-class-d-audio-amplifier-pam8302) | [Markdown version](https://littlebirdelectronics.com.au/products/adafruit-mono-2-5w-class-d-audio-amplifier-pam8302.md) --- ## [Mini Oval Speaker - 8 Ohm 1 Watt](https://littlebirdelectronics.com.au/products/mini-oval-speaker-8-ohm-1-watt) **Brand:** Adafruit **Price:** $4.85 **Stock:** In stock (Local: 0, Supplier: 100) **SKU:** AF-3923 Hear the good news! This wee speaker is a great addition to any audio project where you need 8 ohm impedance and 1W or less of power. We particularly like this speaker as it is small and comes with nice skinny wires with a connector on the end. It has a handy "Molex PicoBlade" 1.25mm pitch 2-pin ... [View product details](https://littlebirdelectronics.com.au/products/mini-oval-speaker-8-ohm-1-watt) | [Markdown version](https://littlebirdelectronics.com.au/products/mini-oval-speaker-8-ohm-1-watt.md) --- ## [Mono Enclosed Speaker - 1W 8 Ohm](https://littlebirdelectronics.com.au/products/mono-enclosed-speaker-1w-8-ohm) **Brand:** Adafruit **Price:** $7.35 **Stock:** In stock (Local: 1, Supplier: 0) **SKU:** AF-5986 This compact enclosed mono speaker delivers clear audio at up to 1 W with 8 Ω impedance. The sealed enclosure provides better volume and sound quality compared to bare speaker drivers of a similar size, making it a practical choice for embedded audio projects, displays, and interactive installati... [View product details](https://littlebirdelectronics.com.au/products/mono-enclosed-speaker-1w-8-ohm) | [Markdown version](https://littlebirdelectronics.com.au/products/mono-enclosed-speaker-1w-8-ohm.md) --- ## Pagination Page 1 of 3 — showing products 1–20 of 46. Append `&page={n}` to this URL to fetch any page from 1 to 3. - [Next page (2) →](https://littlebirdelectronics.com.au/products.md?page=2&q=speaker+3+diameter+4+ohm+3+watt) - [First page](https://littlebirdelectronics.com.au/products.md?page=1&q=speaker+3+diameter+4+ohm+3+watt) - [Last page (3)](https://littlebirdelectronics.com.au/products.md?page=3&q=speaker+3+diameter+4+ohm+3+watt) --- ## Contact Us **Little Bird Electronics Pty Ltd** ABN: 15 634 521 449 - **Phone:** 1300 240 817 - **Fax:** (02) 8319 2017 - **Email:** team@littlebirdelectronics.com.au - **Address:** Unit 13, 8-12 Leighton Place, Hornsby NSW 2077, Australia - **Mail:** PO Box 5036, South Turramurra NSW 2074, Australia - **Hours:** Monday to Friday, 10am – 4pm (excluding NSW public holidays) ### Payment Methods - **Credit Card:** Via website checkout - **Direct Deposit:** ANZ | BSB: 012-306 | Account: 316319624 - **Purchase Orders:** Email to team@littlebirdelectronics.com.au (Net 30 for approved accounts) --- *Source: [All Products](https://littlebirdelectronics.com.au/products)*