DMS™ 2.1

DMS™ 2.1: Distributed Music System
Pragmatic’s DMS™ 2.1 allows you to give your customers an elegant distributed music system. It is very simple to operate, highly reliable and easy to install. The DMS™ 2.1 system delivers high-quality audio at an affordable price. This simple yet elegant system provides unequaled sound quality with a cable that runs to 3000 feet. It distributes audio signals to more than 32 listening areas using only a single category 5 wire. The cables can be home run into a patch bay or can be daisy-chained. DMS™ 2.1 finds applications in industrial and commercial installations including hotels, restaurants, sports bars, shopping malls, arcades, and theme parks.

The DMS™ 2.1 offers complete music distribution with paging solution on a cost-effective category 5 wire. The in-wall amplifiers with volume control are locally powered (can be centrally powered on an 18/2 AWG along with the category 5 for signal) and daisy chained from one in-wall amplifier to another. Maximum of 32 volume-controlled amplifiers can be daisy-chain connected on a single category 5 wire. Further expansion is possible with additional repeater unit.

The system transmitter comes in a compact rack-mount enclosure. It has a built-in multi-channel audio switcher that can be controlled by an infrared remote control or a RS232/RS485 connection and a TPA™ transmitter to connect to the category 5 wire. A basic remote receiver in a single junction box connects to the category 5 wire to power the speakers directly. These include the TPA™ receiver, a rotary volume control, and the MBA™ high-performance, high-efficiency 24 Watt mono-block amplifier. The audio signal-to-noise ratio is about 96 dB, and has 20 KHz of audio bandwidth and less than 0.1% distortion. The unit operates on a standard 12 V DC power supply and has an operating temperature range of -40 to 85 degrees Celsius, so it can operate in harsh environments.

The DMS™ 2.1 uses Pragmatic’s proprietary SuperTranz™ circuit to eliminate any possibility of ground loops, AC voltage interference, noise pick-up, or hum introduction into the signal path. The DMS™ 2.1 works in category 5, category 3, and even unshielded telephone grade twisted pair wire. Despite using economical wires, DMS™ 2.1 is superior to traditional music distribution systems in performance and cost.