This 6-Zone home audio multizone 12-channel amplifier is a 12-channel audio distribution amp that can be configured for six stereo 4-8 ohm zones, six stereo 70/100V constant voltage zones, or three high powered 8-ohm bridged zones. It supports any combination of stereo, bridged, and constant voltage zones. It delivers 30 watts per channel into 8 ohms, 50 watts per channel into 4 ohms, or 100 watts into 8 ohms in bridged Mode. Each zone can be controlled using the included IR remote control or RS-232 computer control. The RS-232 section is bidirectional, with an easy to configure command structure. It can be configured to automatically send Zone status updates or respond to queries to confirm Zone status and settings.

The CA4 system is an affordable four-zone, four-source multiroom system. Share your music anywhere in your home, at the touch of a button.

Enjoy your favorite albums in the kitchen and living room while satellite radio plays in the den.

The CA4 multiroom system makes enjoying your music throughout your home an affordable luxury.

The CA4-KP keypad selects between four available sources and adjusts bass, treble and loudness.
The keypad also sets source grouping, all on, all off, and party mode.

Featuring green backlighting, an IR receiver and IR confirmation through an LED status indicator, the keypad includes white and almond trim plates and fits in any Decora plate.

Two CA4 controllers can be connected, easily expanding to eight zones for larger homes or budgets.

the CA4-RC remote controler, includes extensive IR device codes and learning capabilities, making control of the system as simple as pressing a button.

With advanced features and easy to use controls, the new CA4 combines exceptional value and straightforward operation for a truly affordable multiroom audio experience.

6 Zone Home Audio Multizone Controller and Amplifier Kit – NO LOGO

PyleHome Model : PT8000CH

8-Ch. Stereo/Mono Amplifier

8-Channel Home Theater Amplifier [Multi-Zone Audio Source Control] Rack Mount Amp, 8000 Watt

Features:

What’s in the Box:

Technical Specs:

The Pyle 8-Channel Home Theater Amplifier is perfect for high-powered audio control. Multi-zone source control allows you to connect multiple speakers and sound systems from nearby rooms. It’s used for wide array of sound applications and connects to all of your favorite devices including TVs, stereo receivers, amplifiers, CD/DVD players, speaker systems and more. Source all of your conveniently and direct your sound with powerful, distortion-free performance. Additional system features include 4-Channel Bridge-Ability, Independent Channel Level Controls with Audio Configuration, Gold-Plated Binding Post Speaker Connectors, Protection Overload Circuitry, Visual Color LED Audio Graphic Indicators — along with Universal Rack Mount Compatibility. Enjoy multi-zone and multi-channel audio control with the Pyle 8-Channel Home Theater Amplifier System.

This Digital to Analog Audio Converter converts Digital Coaxial or Digital Optical (To slink) audio signals into stereo analog audio signals for connection to an external device, such as an amplifier, using standard RCA audio cables. 

Commercial Audio 4x120W 4ch/4Zone Mixer Matrix 100/70V w/Digital Media Player (No Logo)

Simplify the task of running distributed audio for restaurants, hotels, or anywhere large areas need background music and/or paging address systems. Connect hundreds of speakers covering acres of area without the need for large equipment racks.

A constant voltage speaker system differs from a traditional 8-ohm speaker system in that it uses a step-up transformer at the audio source to raise the voltage and lower the current on the transmission line. At the speaker end, a step-down transformer converts the signal back to a normal speaker level voltage. This reduces power loss during transmission, which allows for the use of longer speaker wire runs using smaller gauge wire.

Additionally, a constant voltage speaker system allows for the use of multiple speakers on each channel, without the need for complicated impedance calculations and configurations. In a constant voltage system, all speakers on a given channel are connected in parallel and the complicated impedance calculations are replaced by simple wattage calculations.

For example, if you want to connect two speakers per channel in a traditional 8-ohm speaker system, you must either connect them in series, which results in an overall 16-ohm impedance, or in parallel, which results in an overall 4-ohm impedance. In the first case, the 16-ohms impedance effectively halves the output power of your amplifier, resulting in lower overall volume levels. In the latter case, the 4-ohms impedance means that your amplifier will have to work harder and must be rated as stable at 4 ohms. Adding a third speaker to the mix would complicate it further, producing either a 24-ohm or 2-ohm overall impedance. Note that very few amplifiers are stable under 2-ohm loads, so that is usually not an option.

On the other hand, with a constant voltage system, you consider first the RMS output wattage of the amplifier. This should be reduced by 20% to compensate for insertion loss. For example, if using a 100-watt amplifier, the total load from speakers should not exceed 80 watts.

This amp features three combination XLR/TRS balanced/unbalanced inputs, which can be set to accept a standard microphone input, a microphone input with +48V phantom power, or a line level input. It also has two unbalanced stereo RCA line level inputs. It has four independent 120 watt amplifiers, which can drive 4-ohm loads or a 70V or 100V constant voltage speaker array. A Media Player is included, which features a built-in FM tuner and an mp3 player, which can playback files from a drive connected to the USB port or an SD™ card inserted in the SD/MEDIA slot. It includes thermal, short-circuit, clipping, and overload protection circuits, as well as a ground lift switch. It can interface with external phone systems for telephone paging.

Features:
• Four independent 120-watt amplifiers capable of driving 4Ω loads, as well as 70V and 100V constant voltage speaker arrays
• Three combination XLR/TRS balanced/unbalanced inputs capable of connecting microphone level, microphone level with Phantom power, or line level sources
• Two unbalanced stereo RCA inputs
• Independent gain controls on all inputs
• Any input can be directed to any or all outputs
• Balanced line outputs for each zone
• Built-in media player with FM tuner and mp3 player for playback of files on a connected USB drive or an SD™ card
• Can record FM audio and save as mp3 files on a connected USB drive or SD card
• RS232 serial control
• Can interface with external phone systems for telephone paging
• Thermal, short-circuit, clipping, and overload protection circuits
• 1-watt, 8-ohm amplifier for driving a monitor speaker
• Ground lift option

The Monoprice Ultra Slim Active High Speed HDMI Cable series is designed with the thinnest TVs in mind. The small form factor connector heads fit perfectly in tight spaces, while the ultra thin 36AWG cable is more flexible and easier to route. Built into this small package is an active HDMI chipset, which ensures the most reliable signal transmissions to support 4K, 3D, and other bandwidth intensive features.