---
product_id: 275729567
title: "OSD Audio 3-Way Outdoor Patio 4\" Speaker Indoor Outdoor Stereo Pair Black AP450"
brand: "osd audio"
price: "2725 Lei"
currency: RON
in_stock: false
reviews_count: 5
category: "Osd Audio"
url: https://www.desertcart.ro/products/275729567-osd-audio-3-way-outdoor-patio-4-speaker-indoor-outdoor
store_origin: RO
region: Romania
---

# 55W RMS power handling 90dB sensitivity Rust-resistant powder-coated grille OSD Audio 3-Way Outdoor Patio 4" Speaker Indoor Outdoor Stereo Pair Black AP450

**Brand:** osd audio
**Price:** 2725 Lei
**Availability:** ❌ Out of Stock

## Summary

> 🎶 Elevate your outdoor vibe with sound that commands attention!

## Quick Answers

- **What is this?** OSD Audio 3-Way Outdoor Patio 4" Speaker Indoor Outdoor Stereo Pair Black AP450 by osd audio
- **How much does it cost?** 2725 Lei with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.ro](https://www.desertcart.ro/products/275729567-osd-audio-3-way-outdoor-patio-4-speaker-indoor-outdoor)

## Best For

- osd audio enthusiasts

## Why This Product

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

## Key Features

- • **Sleek Black Design:** Blends seamlessly with modern patios and indoor spaces.
- • **Robust 55W RMS Power:** Delivers rich, distortion-free sound for your outdoor oasis.
- • **Easy Wall-Mount Installation:** Flexible brackets make setup a breeze—upgrade your space fast.
- • **Weather-Resistant Durability:** Powder-coated grille stands strong against the elements.
- • **Crystal-Clear 90dB Sensitivity:** Hear every beat with precision and power.

## Overview

The OSD Audio AP450BLK is a 4-inch, 3-way outdoor/indoor speaker pair designed for powerful, clear audio with 90dB sensitivity and 55W RMS power handling. Featuring a rust-resistant powder-coated grille and flexible mounting brackets, these speakers combine durability with sleek styling to enhance any patio or indoor environment. Perfect for professionals seeking premium sound quality and effortless installation.

## Description

The OSD 4” 3 Way Outdoor Patio Speaker Pair is a great way to enhance your outdoor or indoor sound. It is made to last outside with a powder-coated rust-resistant grille to blend into your home decor and have an effective, powerful watt sound. Optimal Speaker Design is engaged in the design, engineering, and distribution of high-quality home and commercial audio products. Our products range in complexity from simple in-ceiling speakers to whole house audio systems—all with beautiful styling and high-end sound quality.Our U.S.-based research, development and design team, is supported by a network of cutting-edge acoustical, mechanical and electrical engineers. Together, we create products that combine the latest technology with ease of use for a quality sound experience.With extensive product and application knowledge, our exceptional team provides you with custom solutions to create the perfect audio solution.

Review: Used it on my patio all summer long. Used them probably every 2 days or so. I have a 100 ft long backyard, we a pool at the end of it, and can CLEARLY hear the music with a perfect sound. I use them with an old Denon receiver so maybe a cheaper amp would work as good but it's really worth the money.
Review: I've had these speakers for just over three years now. I'd like to think that is enough time to right an unbiased review. These are solid speakers of large enough size to produce more than sufficient bass-response. I am currently powering them with 40 watts each and they sound great without distortion. I am certain they can easily take more power if needed - however, at they current power they are more than loud and efficient enough for me. I've had no issues with weather affecting the speaker drivers - so yes, they are sufficiently waterproof for my un-covered deck. They were easy to install with the included brackets. I am happy with their over-all functioning including the gold-plated thumb screws on the back to attach the speaker wires. The last two Winters I have been taking them inside as I don't hang out on the deck during this time of year - easy to remove and then re-install in the Spring. My only minor complaint is the plastic housing slightly yellows with time. The sun is quite harsh at altitude here in Colorado, so I don't want to be too judgmental. I guess if it really bothered me I'd spray paint them again. However, their main function is to create great music - which they do. I am kinda picky about quality music and so far have not been disappointed.

## Features

- OSD Audio
- AP450BLK

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B007V2V16W |
| Audio sensitivity | 90 Decibels |
| Best Sellers Rank | #1,431,918 in Electronics ( See Top 100 in Electronics ) #219 in Outdoor Speakers |
| Brand Name | OSD Audio |
| Colour | black |
| Colour Name | black |
| Compatible Devices | Desktop, Laptop, MP3 Player |
| Control Method | App |
| Customer Reviews | 4.5 4.5 out of 5 stars (1,081) |
| Date First Available | 6 November 2013 |
| Impedance | 8 Ohms |
| Included Components | flexible mounting brackets |
| Is Waterproof | FALSE |
| Item Weight | 2 kg 490 g |
| Item model number | AP450BLK |
| Manufacturer | OSD Audio |
| Model Name | AP450BLK |
| Mounting Type | Wall Mount |
| Net Quantity | 1.0 Count |
| Number of Items | 2 |
| Power Source | Amplifier |
| Product Dimensions | 12.4D x 14W x 20.8H Centimeters |
| RMS Power Range - Amplifiers | 110 Watts |
| RMS Power Range - Speakers | 55 Watts |
| Recommended Uses For Product | Styling |
| Signal-to-Noise Ratio (db) | 88 dB |
| Speaker Size | 4 Inches |
| Speaker Type | Outdoor |
| Special Feature | Durable, Weather Resistant |
| Subwoofer Diameter | 4 Inches |
| Surround Sound Channel Configuration | 3 1 |
| Wireless Communication Technology | No Wireless Communication Technology |

## Product Details

- **Audio Output Mode:** Stereo
- **Brand:** OSD Audio
- **Connectivity Technology:** Speaker Wire
- **Input Voltage:** 70 Volts
- **Speaker Maximum Output Power:** 80 Watts

## Images

![OSD Audio 3-Way Outdoor Patio 4" Speaker Indoor Outdoor Stereo Pair Black AP450 - Image 1](https://m.media-amazon.com/images/I/31O6Z+erRaL.jpg)
![OSD Audio 3-Way Outdoor Patio 4" Speaker Indoor Outdoor Stereo Pair Black AP450 - Image 2](https://m.media-amazon.com/images/I/31ZHXCVs6xL.jpg)
![OSD Audio 3-Way Outdoor Patio 4" Speaker Indoor Outdoor Stereo Pair Black AP450 - Image 3](https://m.media-amazon.com/images/I/41E3tANhQKL.jpg)
![OSD Audio 3-Way Outdoor Patio 4" Speaker Indoor Outdoor Stereo Pair Black AP450 - Image 4](https://m.media-amazon.com/images/I/41jC7yDvMRL.jpg)
![OSD Audio 3-Way Outdoor Patio 4" Speaker Indoor Outdoor Stereo Pair Black AP450 - Image 5](https://m.media-amazon.com/images/I/519LdtlaTnL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by J***N on 30 November 2015*

Used it on my patio all summer long. Used them probably every 2 days or so. I have a 100 ft long backyard, we a pool at the end of it, and can CLEARLY hear the music with a perfect sound. I use them with an old Denon receiver so maybe a cheaper amp would work as good but it's really worth the money.

### ⭐⭐⭐⭐⭐ Review
*by C***K on 7 December 2025*

I've had these speakers for just over three years now. I'd like to think that is enough time to right an unbiased review. These are solid speakers of large enough size to produce more than sufficient bass-response. I am currently powering them with 40 watts each and they sound great without distortion. I am certain they can easily take more power if needed - however, at they current power they are more than loud and efficient enough for me. I've had no issues with weather affecting the speaker drivers - so yes, they are sufficiently waterproof for my un-covered deck. They were easy to install with the included brackets. I am happy with their over-all functioning including the gold-plated thumb screws on the back to attach the speaker wires. The last two Winters I have been taking them inside as I don't hang out on the deck during this time of year - easy to remove and then re-install in the Spring. My only minor complaint is the plastic housing slightly yellows with time. The sun is quite harsh at altitude here in Colorado, so I don't want to be too judgmental. I guess if it really bothered me I'd spray paint them again. However, their main function is to create great music - which they do. I am kinda picky about quality music and so far have not been disappointed.

### ⭐⭐⭐⭐⭐ Review
*by P***R on 17 June 2014*

I hung them in the corners of the room, close to the ceiling. That way the bass is a bit better. I love how they look and the sound is really good. If you compare the specs of these speakers with more expensive ones, you see you get a lot for your money here. I did send the black ones back because I found out they also came in white which looks way better!

## Frequently Bought Together

- OSD 4" Outdoor Patio Speaker Pair 80W, IP54 Weather Resistant, Aluminum Grilles Black AP450
- Amazon Basics Speaker Cable, Easy Assembly, 16-Gauge, Bronze, 100 ft
- Sunbuck Mini Amplifier, 2 Channel Stereo Amplifier, Power Amplifier Max 300Wx2 Output, Bluetooth Amplifier for Home Speakers, Stereo Receiver with RCA/USB/FM/AUX, Mini Amplifier for Speakers, AS-22BU

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---

*Product available on Desertcart Romania*
*Store origin: RO*
*Last updated: 2026-02-03*