amazon Denon PMA-50 reviews
Simple, beautiful and smart design
Denon PMA-50 is compact in appearance, unlike Denon’s traditional hifi products. The dimension horizontal x height x depth of the machine corresponds to 154 x 80 x 240mm and weighs only 2.4kg. The casing is made of aluminum and is painted beautifully. The entire front is black mica, the inside of which has a clock display. In order for the user to easily position the device, the PMA-50 is designed for vertical or horizontal positioning, and the display information can also be rotated in the direction of the amplifier.
An efficient DAC device
You will be very interested in the DAC component of this amplifier. Integration in the PMA-50 is a quality DAC that even audiophile audiences are hard to overlook. The core of a DAC is the signal processing chip, and the PMA-50 owns the best-of-breed Denon processor. In addition to the DAC chip that can handle high-resolution 192kHz / 24bit music files, accepting 2.8MHz and 5.6MHz DSD tracks, the PMA-50 also features Advanced AL32 Digital Audio Processing Output signal quality level up several times.
This structure uses data interpolation algorithms to achieve higher sampling frequency and bit rate. Interpolation in mathematics is an expression-based solution that has been used to estimate function values at data defects. Similarly, this technique applies to the AL (Adaptive Line Pattern Harmonized Algorithm) circuit, by analyzing the large sample frequency before and after decoding the music file, simulating it, and interpolating the missing values. This technology allows the reproduction of a finer and closer waveform to the original sound. Thus, the quality of the music produced by the DAC in the PMA-50 will be excellent.
Multiple terminals are useful
PMA-50 has 5 digital inputs. In addition to USB-B, this amplifier has two optical and one coaxial input. In addition, there is a RCA input to connect directly to the CD player. Including Bluetooth, the PMA-50 has six digital inputs and allows simultaneous connection to multiple music devices to enjoy high quality audio from this compact amplifier.
Notably, if connected via USB-B, the processor is capable of receiving and processing 2.8MHz and 5.6MHz DSD tracks. This is a very useful feature for anyone who owns these high quality music files (DSD is the encoding file for SACD disks).
Multifunctional Bluetooth and NFC
The PMA-50 is capable of connecting to portable digital devices via Bluetooth to stream music from mobile sources to the system. To simplify the establishment of Bluetooth connectivity, the PMA-50 features an NFC feature that makes it easy to connect to other NFC-enabled devices without entering the pin code.
In particular, the PMA-50 is equipped with a multi-point Bluetooth receiver that allows up to three mobile devices to connect at the same time. When the signal from device 1 pauses, PMA-50 automatically connects the device waiting. The screen will display the name of the device being connected and played.
In addition, the PMA-50 Amplifier features the latest CSR aptX Low Latency decoding, optimizing the sync time when playing music from video sources without the delay between audio and video.
Headamp for audiophile
The PMA-50 is used as a high-end headphone with circuitry designed specifically for headphone output with wideband characteristics, ultra-low distortion and extremely high transmission rates. For connection to many types of headphones, the PMA-50 features impedance control with three low, medium and high levels, which help match the impedance of each headset, giving a much better sound.
Powerful power and detailed sound
PMA-50 has class D amplifier, capacity up to 50W / channel for 4Ω speaker. The amplifier has a DDFA specification that provides high performance and low distortion. DDFA technology developed by CSR and applied to Class D amplifiers to improve sound quality. DDFA stands for Direct Digital Feedback Amplifier. The DDFA architecture uses a high-speed, high-precision digital feedback circuit to create a Class D audio amplifier that opens the digital input, setting a higher standard in the sound quality of the digital amplifier. Closed-loop feedback circuits are also capable of offsetting distortion error frequency at the output power stage, nonlinear filters and source transformers. To eliminate digital noise via USB, the PMA-50 is equipped with a separate block for the D / A converter, preventing interference from propagating into the audio circuit.
where can you get a Denon PMA-50 online
Denon PMA-50 Compact Digital Amplifier: Buy it now
Device experience
With a nominal 50W class D power, many people will think the PMA-50 can only pair with a few small bookshelf speakers for personal music. However, the selection process for mating, indicates the ability of the PMA-50 to be very powerful. This device can be paired up with multiple speakers from the bookshelf to the speaker stand easily and provide subtle, detailed sound and soft bass precision.
First, we paired the PMA-50 with a pair of 120W bookshelf speakers, 88Db sensitivity and 8Ω impedance. That is the pair of Monitor 2 Silver 2 speakers. The music source is a Bluetooth signal from the iPhone. Sound quality is very clear, soft bass though deep down. The second speaker is the Monitor Audio Silver 6 150W, 90dB sensitivity and 8Ω impedance, including a treble and 2 mid / bass 150mm diameter. Sound is still very good and has stronger internal force and bass. If the room is larger than 20m2, the PMA-50 will still satisfy its coverage. When connected to a laptop, listeners should download the driver from the Denon website or use the installation disc included with the machine. All operations are smooth, lossless music files in computer hard drive format FLAC, WAV and AIFF are all running well.
Another Tannoy speaker, Revolution XT, was also chosen for the mix. The Revolt XT 6 bookshelf and the XT 6F standalone speakers make us very happy with the sweet, clear sound. If you choose the high quality files of light music, the listener will see the amplifier combined with this DAC show or great.
Commentary overview
With a price of $600 and a range of advanced features and facilities combined with the quality of the Denon brand, we consider this an excellent DAC amplifier. The trend of enjoying high quality digital music is booming in globally. Denon grasped this sensation and launched the right product in many market segments. On the other hand, Denon is also a manufacturer of audio equipment that has the power to capture demand and quickly respond precisely to consumer tastes. The integrated PMA-50 DAC amplifier is a real testament to this statement.