Best In Wall Home Audio

Just like Matthew Polk’s signature Reference theater (SRT) system, The components used in the RT Series benefit from dynamic balance, a technology which came out of a joint research project between Polk Audio and Johns Hopkins university. This laser imaging research enabled Polk to view on a microscopic level The entire vibrating surface of a driver or tweeter. By this method Polk was able to observe the resonances, which develop on speaker cones as they move. These resonances are the root cause of frequency response distortions.

as an x-ray enables a physician to discover the root cause of a symptom and prescribe the right treatment for a cure, this laser imaging technique allowed Polk engineers to find the right combinations of high Tech materials, geometry and construction techniques to tune out the offending resonances. The benefit of dynamic balance is the dramatic improvement in the sound quality of our speakers, which every listener can appreciate. You no longer have to choose between excellent bass and smooth, clear midrange. Now you can have it all thanks to dynamic balance technology.

and the result of all these technologies? One listen will tell you. You

????About us????

Yijiayin is delicate to provide a stereo home/hotel audio system and in-time customer service for our customers, with our Hi-fi ceiling speakers and WiFi bluetooth amplifier, you can enjoy the stereo music listening

????Features????

 ????1. Built-in Bluetooth and WiFi for Wireless Music Streaming

????2. 2.0 USB Flash Drive & TF Memory Card Readers

????3. You can control smart LED TV or bluetooth speakers with the stereo amplifier by bluetooth connection

????4. Support to connect 4 speakers, with two zone control function

????5. 7 inch touch screen, high definition HD images. In wall design doesn’t sacrifice your shelf place, which is more convenient

????6. Support DLNA、Airplay、Qplay

????7. Subwoofer can be connect to the stereo amplifier

????8. AUX input and output

????9. Alive talk between several one stereo amplifier with other our stereo amplifiers

????10. Support TF card to update the App in the amplifier

????Specifications????

????Power Handling:

????Output Power: 4*25W

????Impedance: 8 Ohms

????Frequency Response: 20Hz-20Khz 

????Product Size: 7.17” * 5” * 3.15”

????Cutting Size: 6.89” * 4.37” * 2.36”

????Package Include????

1* WiFi bluetooth Amplifier

1* Installation bracket

4* Screws

1*Warranty Card

This Acoustic Audio by Goldwood high definition Series HD516 5.1 in-wall/ceiling speaker system. This system is perfectly matched and consists of: (2) rectangular front in-wall HD speakers, (2) round rear in-ceiling HD speakers, (1) dedicated True Center channel in-wall HD speaker and (1) 10″ In-wall HD subwoofer. This is the ultimate entertainment package to build your very own home theater surround sound system. The speakers mount seamlessly into any wall or ceiling, so they won’t take up precious shelf or floor space. Each speaker has been designed to provide the best sound quality. The entire system can handle 1, 850 watts of power and features authentic 6.5″ Kevlar cones, butyl rubber Surrounds and titanium tweeters. Installation is easy because of the speakers’ Quick-turn mounting arms. The grills are White and can be painted to match specific decor. Speaker wire is included. This package comes with a non-amplified subwoofer. This subwoofer will need an external amplifier for use.

Specifications

Acoustic Audio R191 Specialty Series In Ceiling 2-Way 5 Speaker Set
Recommended Power: 20-200 Watts per speaker
Frequency Response: 45Hz-22 kHz
Efficiency/Sensitivity: 95dB at 1 watt 1 meter
Crossover Frequency: 2200Hz
Impedance: 8 Ohm
2-Way Design and Functionality
5.25″ Woofers
High Rigidity Polypropylene Cones with Extended Throw Assembly
Butyl Rubber Surrounds For Increased Performance and Durability
12mm Soft Dome Tweeters
All Weather Design For Indoor And Outdoor Use
Paintable Frames and Grills
Low Profile Housings Designed For Easy Installation
Integrated Wall-Lock Mounting System
Cut-Out Templates Included For Easy Installation
Cut Out Size: 6.625″ per speaker
Overall Size: 7.625″ per speaker
Mounting Depth: 3″ per speaker
Designed And Engineered In USA
Full Instructions Included

Applications:
Home Entertainment In-Wall/Ceiling Speakers
Home Audio Surround Sound
Center Channel Speaker
Sunrooms or Atriums
Patios or Pool Decks
Spas and Garden Areas
Home Theaters or Cinema Rooms
Bathrooms or Kitchens
Boats or Yachts
Open-Top Vehicles
Offices or Commercial Use

This Listing and Price is for 2.5 Pair / 5 In Ceiling or In Wall Speakers

Polk’s patented power port bass Venting system greatly enhances the smooth low-end response in this easy-to-place, single-woofer in-wall speaker. Recommended for use as left and right front channel speakers, Stealth side or rear surround speakers in an RTI theater system setup, or for superior dynamics in practically invisible multi-zone music systems. Virtually-flush mounting with a minimal-flange design means this speaker never attracts attention by its looks, only by its performance.