> **Source:** Core Electronics is an Australian maker-electronics retailer and manufacturer based in Newcastle, NSW, run by a team of makers and educators. We design and manufacture our own product lines (PiicoDev, CE originals) and are official retailers for iconic maker and industrial brands including Raspberry Pi, Arduino, Adafruit, SparkFun and DFRobot. Orders ship Australia-wide from our Newcastle warehouse. Prices are in AUD and include GST. Pricing, stock and dispatch on this page are generated from the store's live catalog. Full machine-readable index: https://core-electronics.com.au/llms.txt

# Speaker - 40mm Diameter - 4 Ohm 5 Watt

**Type:** Product page · **SKU:** ADA3968 · **Brand:** [Adafruit](https://core-electronics.com.au/brands/adafruit-australia)
**Page:** https://core-electronics.com.au/speaker-40mm-diameter-4-ohm-3-watt.html ([markdown](https://core-electronics.com.au/speaker-40mm-diameter-4-ohm-3-watt.html.md))

Hear the good news! This speaker is a great addition to any audio project where you need a 4 Ohm impedance and 5W or less of power. At 40mm diameter it has a more...

## Pricing

- **Price:** $11.10 (inc GST) — $10.09 AUD, exc GST
- **Quantity discounts:** 10+ $9.79 (exc GST) · 50+ $9.58 (exc GST)

## Availability & dispatch

- Available with a lead time — expect dispatch between Aug 18 and Aug 24.

## How to buy

- **Build a cart:** compose `https://core-electronics.com.au/cart/link?items=ADA3968:1` (comma-separated SKU:qty pairs) and share the link. Opening it shows a confirmation page with live pricing and stock before anything is added to the cart.
- **Verify the cart first:** fetch `https://core-electronics.com.au/cart/link/ADA3968:1.md` for live line prices (inc & exc GST, quantity discounts applied), stock and dispatch estimates, and totals. Append `/to/{AU-postcode}` (or `/to/{country-code}:{postcode}`) before `.md` for delivery options and prices to that destination. Unknown, retired, or out-of-stock SKUs are flagged. (Query form `cart/link.md?items=...` also works but some robots parsers refuse query strings here.)
- **Checkout** is completed on-site and includes a captcha at the payment step. Share the cart link; checkout takes it from there.
- **Search the catalogue:** `https://core-electronics.com.au/search/{query}.md` (URL-encode the query; pages 2-3 at `search/{query}/{page}.md`; `search.md?q=` also works)
- **Payment methods, purchase orders, policies and contact details:** https://core-electronics.com.au/llms.txt
## Description

Hear the good news! This speaker is a great addition to any audio project where you need a 4 Ohm impedance and 5W 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 Adafruit's [Thin Plastic Speaker with Wires](https://core-electronics.com.au/thin-plastic-speaker-w-wires-8-ohm-0-25w.html) and the honkin' [20W 4 Ohm Full Range Speaker](https://core-electronics.com.au/20w-4-ohm-full-range-speaker-xs-gtf1027.html).

## Technical Details

- Weight: 27.3g
- Overall Diameter: 40mm
- Height: 20mm
- Wire Length: approx 9cm
 
![](https://core-electronics.com.au/attachments/localcontent/rohs_icon_8216055e11.jpg)

## Guides for this product

- [DIY 10W Bluetooth Speaker - No Code Needed – How to use a Bluetooth 4.2 Audio Receiver Board with Onboard Amplifier (MH-M38)](https://core-electronics.com.au/guides/wireless/mh-m38-bluetooth-10w-speaker/)

## Videos for this product

- [DIY USB Boombox with a 4.2 Bluetooth Audio Receiver (MH-M38) - Zero Code!](https://core-electronics.com.au/videos/diy-usb-boombox-with-a-42-bluetooth-audio-receiver-mh-m38-zero-code)

## Images

- [Product image 1](https://core-electronics.com.au/media/catalog/product/3/9/3968-03.jpg)