---
product_id: 2348606
title: "Definitive Technology UDSA In-Wall RCS II Referance Ceiling L/C/R (Single, White)"
brand: "definitive technology"
price: "VT207740"
currency: VUV
in_stock: true
reviews_count: 5
category: "Definitive Technology"
url: https://www.desertcart.vu/products/2348606-definitive-technology-udsa-in-wall-rcs-ii-referance-ceiling-l
store_origin: VU
region: Vanuatu
---

# 22Hz–30kHz ultra-wide frequency range Dual 5.25" bass/midrange drivers Pressure-coupled 6.5" low bass radiators Definitive Technology UDSA In-Wall RCS II Referance Ceiling L/C/R (Single, White)

**Brand:** definitive technology
**Price:** VT207740
**Availability:** ✅ In Stock

## Summary

> 🎶 Elevate your home theater with sound that’s hidden but never compromised!

## Quick Answers

- **What is this?** Definitive Technology UDSA In-Wall RCS II Referance Ceiling L/C/R (Single, White) by definitive technology
- **How much does it cost?** VT207740 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.vu](https://www.desertcart.vu/products/2348606-definitive-technology-udsa-in-wall-rcs-ii-referance-ceiling-l)

## Best For

- definitive technology enthusiasts

## Why This Product

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

## Key Features

- • **Effortless Installation:** Includes precision templates and locking arm mounts for a secure, resonance-free fit—no mess, no fuss.
- • **Built to Last & Blend In:** Moisture-resistant, paintable white finish with rigid, non-resonant frames for durability and invisibility.
- • **Invisible Powerhouse Sound:** Stealthy in-ceiling design delivers rich, room-filling audio without cluttering your space.
- • **Precision Audio Engineering:** Pure aluminum dome tweeter and cast-basket drivers ensure crystal-clear highs and deep, dynamic lows.
- • **Seamless Home Theater Integration:** Perfect for L/C/R or surround channels, blending effortlessly with subwoofers for immersive 3D sound.

## Overview

The Definitive Technology UDSA In-Wall RCS II is a premium in-ceiling speaker featuring dual 5.25" high-definition cast-basket bass/midrange drivers, two 6.5" pressure-coupled low bass radiators, and a 1" pure aluminum dome tweeter. With a frequency response spanning 22Hz to 30kHz, it delivers deep, dynamic bass and crystal-clear highs. Designed for seamless integration in custom home theaters, it supports left, center, right, and surround channels. Its easy installation system, moisture resistance, and paintable finish make it a durable, stealthy audio solution for millennial professionals seeking high-end sound without sacrificing aesthetics.

## Description

Product Description Definitive Technology ceiling speaker, rcs II, is intended for use as an in-ceiling front main left, center or right channel speaker, as well as a rear or side surround speaker in custom installed home theater systems of the highest quality. In addition, it can be used as a superb left or right speaker in a high quality stereo music system. The rcs II with its active driver/bass radiator combination achieves an extended low-frequency response, which is deep and dynamic with a smooth and controlled roll-off that allows it to seamlessly blend with a subwoofer with a quality that has never been previously achieved in an in-ceiling system. From the Manufacturer From the Manufacturer Definitive Performance from "Invisible" SpeakersHome theater is hot today. And "invisible" home theater is even hotter. But until now, it was nearly impossible to experience the full on high performance of traditional loudspeakers using "hidden" in-wall and in-ceiling speakers. Now, Definitive Technology would like to introduce you to the "stealth" sound system solution: Definitive Architectural Loudspeakers. These reference-quality loudspeakers deliver superb sound in unusual in-wall and in-ceiling installations for high end home or commercial applications: anywhere you want warm, rich, traditional performance without the cabinet-style traditional speaker! In-Wall and In-Ceiling installations deliver Definitive's smooth natural sound, reproduced with a lifelike, three-dimensional character that really brings music and movies to life, perfecting the illusion that the music or cinematic action is actually being performed live in your home! This ability to encourage your suspension of disbelief is the hallmark of a truly successful "hidden" loudspeaker. Definitive Architectural Loudspeakers Features Build a "stealth" home theater system that will blow you away without taking up any shelf or floor space! Easy-to-Install--One hole, no mess. Precision templates are included. Exclusive Locking Arm Mounting System grabs your wall with high tension clamps at the turn of a screw, stiffening the baffle and eliminating resonance! (Rough-In Kits for new construction are available, too.) Easy to paint so they virtually disappear into your room, and moisture-resistant for kitchen and even bathroom installations! Pure Aluminum Dome Tweeters--Exclusive, Definitive-developed Magnetic Fluid-Cooled Moving-Coil Tweeter Dome of Pure Aluminum synergistically brings together the performance advantages of metal domes (greater clarity) and soft domes (smoother sound and better dampening) in one state-of-the-art tweeter design, for detail, clarity and accurate imaging. High-Definition Cast-Basket Bass/Midrange Drivers--For significant performance advantages in the areas of bass reproduction, lifelike midrange clarity and dynamic range. (All models except UIW 63/A and UIW 83/A.) Aerodynamically designed, magnetically inert, non-resonant cast baskets minimize reflections of the sound radiating from the back of the cones and preserve structural and magnetic integrity. Rigid Non-Resonant Glass-Filled Low Profile Frames--Maintain sonic purity by defeating diffraction, giving Definitive Architectural Loudspeakers a wide, dynamic sound stage with minimized resonance or coloration. Molded of a glass-filled polymer compound to eliminate baffle resonance. Definitive Technology Architectural Loudspeakers come in a wide array of round, rectangular, bipolar, dual-channel and all-weather styles to suit any installation need. They are all engineered to achieve the same level of superior sonic performance as our flagship floor-standing speakers, utilizing the same state-of-the-art components and technologies developed for our top-of-the-line speakers. So you can mix-and-match these in-wall and in-ceiling loudspeakers in systems with other Definitive Technology loudspeakers. Technical SpecificationsOuter Flange Size: 15-1/2" W x 15-1/2" HCut-Out Size: 14-3/8" W x 5-7/8" D x 14-3/8" HDepth from Flange (including drywall thickness): 5-7/8"Frequency Response: 22 Hz – 30 kHzDrivers: – Two 5-1/4" high-definition cast-basket bass/midrange – Two 6-1/2" pressure-coupled low bass radiators – One 1" pure aluminum dome tweeterRecommended Amplification: 10 – 250 wattsNominal Impedance: Compatible with 8 ohm outputsWeight: 22 lbs.

Review: It's a tight fit but the sound is amazing - These speakers are 14 3/8" square and that's just small enough to fit between the ceiling joists. There is little wiggle room, so installation was a bit challenging at times for me. Once installed, I was extremely impressed with the sound. It really does sound like the speakers are on the wall and not in the ceiling. These speakers also produce a nice full range of sound...even if I turn my sub-woofer all the way down. Although these speaker were tough on my wallet, I really am happy with how they sound...and I love that they are hidden away in the ceiling. The build quality of these speaker is really nice. I've never seen a more solid speaker box. If I was being a bit nit-picky, I would say one con is the grill. It's just hard to get it fit to the speaker evenly.
Review: high quality, easy install - I'm using as my center channel in the ceiling as a last resort because I had no place to mount a center channel on the wall. I'm glad I went with this. It doesn't blow my mind, and I wish it cost less, but it does seem to throw the sound down because of the angle of the speakers, solving a huge problem that I was worried about in our theater setup. I ended up cranking up my center channel volume a bit and now it seems perfect. It's constructed really well and came with good instructions and template to cut out drywall. One of the screws broke inside the ceiling joist but we ended up being able to drive a drywall screw in that hole to make up for it.

## Features

- Single in ceiling speaker
- Equipped with two 5.25 Inch high definition cast basket bass/midrange and two 6.5 Inch pressure coupled low bass radiators
- Frequency response: 22Hz to 30kHz
- Equipped with one 1 inch pure aluminum dome tweeter
- Outer Flange size: 15.5 W x 15.5 H inches

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B001A6IEEW |
| Audio Driver Size | 6.5 Inches |
| Audio Driver Type | Dynamic Driver |
| Best Sellers Rank | #381,307 in Electronics ( See Top 100 in Electronics ) #699 in Ceiling & In-Wall Speakers |
| Color | White |
| Compatible Devices | Desktop, Laptop, MP3 Player, Projector, Smartphone, Tablet, Television |
| Control Method | Touch |
| Date First Available | June 1, 2008 |
| Global Trade Identification Number | 00093207051692 |
| Impedance | 8 Ohms |
| Included Components | UIW RCS II |
| Is Discontinued By Manufacturer | No |
| Is Waterproof | FALSE |
| Item Weight | 20 pounds |
| Item model number | UDSA |
| Manufacturer | Definitive Technology |
| Material | Metal, Plastic |
| Model Name | RCS II |
| Mounting Type | Ceiling Mount |
| Number Of Circuits | 1 |
| Number of Items | 1 |
| Power Source | Corded Electric |
| Product Dimensions | 12"D x 7.33"W x 12.2"H |
| Recommended Uses For Product | Home Theater |
| Speaker Size | 6.5 Inches |
| Speaker Type | In Ceiling |
| Surround Sound Channel Configuration | 5.1, 7.1 |
| UPC | 093207051692 |
| Unit Count | 1.0 Count |
| Warranty Type | Limited |
| Woofer Diameter | 5.25 Inches |

## Product Details

- **Audio Output Mode:** Surround
- **Brand:** Definitive Technology
- **Connectivity Technology:** Optical, RCA
- **Frequency Response:** 22 Hz
- **Speaker Maximum Output Power:** 500 Watts

## Images

![Definitive Technology UDSA In-Wall RCS II Referance Ceiling L/C/R (Single, White) - Image 1](https://m.media-amazon.com/images/I/51POz58Ch6L.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ It's a tight fit but the sound is amazing
*by K***Y on September 11, 2013*

These speakers are 14 3/8" square and that's just small enough to fit between the ceiling joists. There is little wiggle room, so installation was a bit challenging at times for me. Once installed, I was extremely impressed with the sound. It really does sound like the speakers are on the wall and not in the ceiling. These speakers also produce a nice full range of sound...even if I turn my sub-woofer all the way down. Although these speaker were tough on my wallet, I really am happy with how they sound...and I love that they are hidden away in the ceiling. The build quality of these speaker is really nice. I've never seen a more solid speaker box. If I was being a bit nit-picky, I would say one con is the grill. It's just hard to get it fit to the speaker evenly.

### ⭐⭐⭐⭐⭐ high quality, easy install
*by P***E on March 7, 2013*

I'm using as my center channel in the ceiling as a last resort because I had no place to mount a center channel on the wall. I'm glad I went with this. It doesn't blow my mind, and I wish it cost less, but it does seem to throw the sound down because of the angle of the speakers, solving a huge problem that I was worried about in our theater setup. I ended up cranking up my center channel volume a bit and now it seems perfect. It's constructed really well and came with good instructions and template to cut out drywall. One of the screws broke inside the ceiling joist but we ended up being able to drive a drywall screw in that hole to make up for it.

### ⭐⭐⭐⭐⭐ Excellent theater room ceiling speakers.
*by P***N on November 9, 2019*

Sounds amazing!!! The speakers are heavy and require custom installation with 2x4 for ceiling mounts, but it’s worth it.

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*Product available on Desertcart Vanuatu*
*Store origin: VU*
*Last updated: 2026-05-09*