Denon PMA-50: integrated stereo digital amplifier with Advanced AL32

The audio manufacturer has developed the PMA-50 stereo digital amplification system, What, among other benefits, plays high-fidelity audio and allows you to transfer the files contained from a portable device via Bluetooth.

Denon PMA-50 is the new integrated stereo digital amplifier from this manufacturer, marketed in Spain by Gaplasa, that delivers high-fidelity sound when connected to digital audio sources from 16, 20 and 24 Bit, for what it uses the Advanced AL32 digital audio processing of the firm.

This results in an upconversion, digital filtering and reduction of low-bitrate data noise up to 32 Bit, to achieve optimal dynamic range and improve bass resolution.

In addition, uses a Class D digital amplifier that incorporates DDFA technology. The output stage circuit features a discrete construction for a better signal-to-noise ratio and less distortion., plus high sound fidelity and high performance 50 watts/4 ohms.

With the aim of reducing jitter, Denon PMA-50 has been built with a DAC master clock design regenerated by a PWM modulator, which translates into a correct location of the sound and an extremely natural acoustic space. In addition, integrates Bluetooth technology with NFC to transmit audio tracks stored on portable devices wirelessly by simply pressing the Bluetooth button on the front panel. It is also possible to establish this communication using NFC technology.

The PMA-50 amplifier features low-latency aptX decoding, ensuring CD-quality sound and optimal time synchronization when playing video sources. Thanks to the integration of multipoint connectivity technology, Three Bluetooth devices can be connected simultaneously.

USB and more connectivity

The system also adds a USB-B input with which it is possible to connect a PC or Mac and listen to the audio files contained in the computer in high resolution. specifically, Denon PMA-50 is capable of playing high-resolution PCM files up to 24 bits/192 KHz, as well as high-resolution DSD files of 2,8 MHz and 5,6 mhz.

To eliminate digital noise generated by the USB input, The system has a specific noise isolation block, located before the digital amplifier and D/A converter block (digital/analog), Prevents digital noise from reducing sound fidelity. It also has two optical digital audio inputs and one coaxial digital audio input., plus a stereo analog input.

With a compact size and matt aluminum finish, PMA-50 can be placed both horizontally and vertically and is equipped with flexible legs and screw caps for perfect adaptation. It integrates an automatic orientation function of its display that detects if the amplifier is in one position or another and adjusts it accordingly.

The amplifier is completed with a headphone output with a three-position impedance selector (casualty, Medium & High) in order to ensure an optimal fit. This socket includes a 6,3 Mm, Compatible with consumer and professional headphone models, In addition, there is a remote control that incorporates a navigation course, Source and volume selection controls, Settings Menu, as well as return buttons, Bluetooth activation and screen dimming.

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