---
product_id: 23139545
title: "Classroom Sound System with Drop In Ceiling Speaker and 30 Watt Mixer Amplifier"
brand: "pure resonance"
price: "£532.04"
currency: GBP
in_stock: true
url: https://www.desertcart.co.uk/products/23139545-classroom-sound-system-with-drop-in-ceiling-speaker-and-30
store_origin: GB
region: United Kingdom
---

# Classroom Sound System with Drop In Ceiling Speaker and 30 Watt Mixer Amplifier

**Brand:** pure resonance
**Price:** £532.04
**Availability:** ✅ In Stock

## Quick Answers

- **What is this?** Classroom Sound System with Drop In Ceiling Speaker and 30 Watt Mixer Amplifier by pure resonance
- **How much does it cost?** £532.04 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.uk](https://www.desertcart.co.uk/products/23139545-classroom-sound-system-with-drop-in-ceiling-speaker-and-30)

## Best For

- pure resonance enthusiasts

## Why This Product

- Trusted pure resonance brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Description

This Classroom Sound System is the perfect solution for K-12 and higher education facilities. This complete audio package consists of one Pure Resonance SD4 Ceiling Speaker Array, and one Atlas Sound AA30PHD 30 Watt Mixer Amplifier. 
 
The SD4 is an innovative speaker concept that meets the demanding needs of audio and systems contractors worldwide. SD Speakers' pyramid design fits into standard 2'x2' or 2'x4' ceiling tile grids, providing an amazing 360 degrees of hemispheric sound. SD speakers are quick and economical to install and are competitively priced, making them an excellent value to contractors! SD4 ceiling speaker array systems offer performance, value and are ideal for classrooms applications. 
 
The Atlas Sound AA30PHD is a 30 Watt, 3-Input Mixer Amplifier that is specifically designed for use in 70.7V speaker systems. The AA30PHD features a unique automatic system test using the front panel "Push Here Diagnostic" button. This internal circuitry is designed to check the connected speaker lines for wiring and impedance errors. 
 
What's in the box? 
 Pure Resonance Audio SD4 Ceiling Speaker Array 
 Atlas Sound AA30PHD 30 Watt Mixer Amplifier

## Features

- This Classroom Sound System is the perfect solution for K-12 and higher education facilities.
- Atlas Sound AA30PHD 30 Watt Mixer Amplifier: - 30 Watts, 3 Inputs - Designed specifically for 70.7V speaker systems - "Push Here Diagnostics" button - allows for an automatic system test
- Great for Schools and Classrooms
- Pure Resonance Audio SD4 Ceiling Speaker: - SuperDispersion 360 x 180 Omni Directional Coverage - Engineered for voice, paging and music applications - Infinite-baffle in-ceiling speaker drops into standard ceiling tile openings - Powerful - 160 Watts at 8 Ohms, 64 Watts at 70 Volts - 4 - 6.5" High compliance aluminum woofers with ported bass response - High frequency dome tweeters - Uniquely designed fire retardant ABS housing may be painted to match any décor - Impedance of 8 ohms nominal with built-in 70 Volts (4, 8, 16, 32, 64 watt taps) - Metal Backbox that is acoustically engineered and sealed for maximum sonic performance

## Images

![Classroom Sound System with Drop In Ceiling Speaker and 30 Watt Mixer Amplifier - Image 1](http://ecx.images-amazon.com/images/I/51XnaXqa0LL.jpg)
![Classroom Sound System with Drop In Ceiling Speaker and 30 Watt Mixer Amplifier - Image 2](http://ecx.images-amazon.com/images/I/51YeSo%2Bw1LL.jpg)
![Classroom Sound System with Drop In Ceiling Speaker and 30 Watt Mixer Amplifier - Image 3](http://ecx.images-amazon.com/images/I/41TAkZixKmL.jpg)
![Classroom Sound System with Drop In Ceiling Speaker and 30 Watt Mixer Amplifier - Image 4](http://ecx.images-amazon.com/images/I/41fvUdkMFZL.jpg)
![Classroom Sound System with Drop In Ceiling Speaker and 30 Watt Mixer Amplifier - Image 5](http://ecx.images-amazon.com/images/I/41WQqzggH2L.jpg)

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*Product available on Desertcart United Kingdom*
*Store origin: GB*
*Last updated: 2026-05-15*