JL Audio MBT-RXv2

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Water-resistant Audio Receiver with BLUETOOTH® Wireless Technology

The MBT-RXv2 wireless receiver is designed to easily add high-quality streaming audio capability to virtually any sound system.

Equipped with BLUETOOTH wireless technology and the Qualcomm® aptX™ HD audio codec, the MBT-RXv2 wireless receiver sends top-quality sound directly to any amplifier or source unit with line-level inputs via a pair of crystal-clear preamp outputs (4-volt RMS).

Housed in a sealed and water-resistant (IPX7-rated) chassis, this premium audio receiver is ideally suited for challenging outdoor applications, plus its tiny design can easily fit in almost any installation location. A simple procedure is all it takes to pair MBT-RXv2 to your device, with automatic reconnection afterward. All playback, including volume and media selection, is controlled by using your compatible streaming device from up to 35’ (11 meters) away.

The receiver includes +12-volt (1 amp) remote turn-on output for amplifier control.

Bluetooth® Wireless Technology

Summary:
Secure and convenient wireless connectivity across a wide range of electronic device platforms.

Detailed Information:
Inspired by the Danish King, Harald Bluetooth, who unified Denmark and Norway in the 10th century, Bluetooth® wireless technology is used throughout the world today, enabling billions of electronic devices to connect wirelessly. With its uniform specification structure, low power consumption and ease of use, a wide range of Bluetooth® equipped devices are securely connected to each other (a process known as "pairing"), affording them seamless communication and data transfer.

Bluetooth® is the global standard for wirelessly connecting electronic devices.

* The Bluetooth® word mark and logos are registered trademarks owned by Bluetooth SIG, Inc., and any use of such marks by JL Audio is under license.

Qualcomm® aptX™ Audio Coding Technology

Summary:
Bluetooth® streaming audio can now get closer than ever before to CD-quality sound, when using a streaming device equipped with the Qualcomm® aptX™ audio codec.

Detailed Information:
Originally developed in the 1980's at Queen's University Belfast, the aptX™ coding algorithm has been the secret weapon of the professional audio and film industries because of its ability to deliver CD-like quality audio over low-power Bluetooth® wireless connections.

When sound waves are transmitted over Bluetooth® as digital audio, they are first compressed to reduce their size using a coding method called "SBC", which stands for Low Complexity Sub Band Coding. the compression process takes a series of snapshots of the audio at specific moments in time known as "samples" and, with enough samples, a Bluetooth® receiver can convert them back into a full sound wave.

Since Bluetooth® is limited by a maximum available bandwidth and because SBC was designed to use as little processing power as possible, some of the data is discarded using a process called "psychoacoustic modeling". Psychoacoustic modeling removes portions of data that theoretically cannot be heard to reduce file size. The result is less than accurate audio reproduction.

To overcome the low-power constraints of SBC and the bandwidth limits of Bluetooth® audio, the patented aptX™ coding algorithm applies a different approach at bit rate reduction. By using a method of "time domain ADPCM" to encode the audio, aptX™ uses fewer bits per sample, so the files are smaller and arrive transparently and intact. The result is full bandwidth audio reproduction that requires less energy and size for transmitting.