PIONEER A-20-K 50W Stereo Amplifier with Direct Energy Design and Aluminium Panels (Black) 3 Years waranty

Main Features

Output Power per Channel50W
Impedance at Output Level• 4 Ω - 16 Ω (A / B)
• 8 Ω - 32 Ω (A + B)
• 4 Ω - 16 Ω (Bi-wiring)
Number of Channels2
Input Connections• SACD/CD
• Phono (MM)
• Aux
• Network
• Recorder
• Tuner
Output Connections• Recorder
• Phones
Remote ControlYes
Input & Output connections
HeadphoneYes
Large speaker terminalsYes
Phono InputYes
Speaker A/BYes
Audio Features
Bass/Treble Tone ControlsYes
'DIRECT' SwitchYes
Loudness (+)Yes
MutingYes
Source DirectYes
Power Output
Power output per channel50 W
Condition20 Hz - 20 kHz, 4Ω, 0.1 % КНИ
Rated Power Output50 W per channel
Power RequirementsAC 220 - 230 В / 50 Гц
Power Consumption (in use / standby)135 W / 0.30 W
Auto Power DownYes

Construction
Direct Construction (+)Yes
Design- Direct Energy Design Amp
- Symmetrical Power Amp
- Clean Ground Construction
- Isolated Power Supply
- Source Direct Mode
- Trans-Stabiliser
- Speaker A, B, A+B Selector
- Aluminium Panels
- Auto Power Down
Amplifier Specifications
Dimensions (W x H x D)435 x 128 x 360  mm
Weight7.2 kg

Overview

Integrated Amplifier with DAC mode

Integrated Amp with USB-DAC for High-res Audio and "Simple & Straight” Engineering Design from High-end Models

• 2 x 160 W (4 ohm) output
• Advanced Ultra High Current (UHC)-MOS Single Push-Pull Circuit Power Amplifier with new Schottky barrier diodes
• DAC Master Clock Design
• USB-B input for High Resolution Audio up to 384 kHz / 32 bit and 11.2 MHz DSD
• Digital isolator to eliminate high-frequency computer noise on the USB-B
• Low noise OLED display for source and sample rate indication
• Analog Mode for pure audio reproduction switching off digital audio circuitry and display
• Advanced AL32 Processing Plus
• Direct Mechanical Ground Construction to minimize unwanted vibration
• Chassis construction with 6 independent blocks to eliminate noises
• Leakage-cancelling-mounted twin transformers
• Main transformer with separate power supplies for analogue and digital circuits
• Wide dynamic range playback, supporting high-resolution audio sources
• High-grade volume control for precise adjustment
• 2 Digital Optical and 2 Digital Coaxial inputs
• High performance MM & MC Phono Equalizer Amp
• Available in Premium Silver

Denon is one of the rare audio brands that continued to actively develop Hi-Fi components and accumulate, refine, and pass down Hi-Fi audio technologies. The 2500NE series, designed for todayʼs age, has been developed by both veteran engineers and talented young engineers who have inherited the Denon technologies and expertise that have been cultivated over many years and decades. And the performance of the PMA-2500NE goes well beyond that of Denonʼs previous PMA-2000 series. With its ultimate built-quality, unique Denon technologies and state-of-the-art connectivity, the PMA-2500NE truly is a masterpiece of sound technology. Thanks to the rear USB-B input and embedded high quality D/A converter, the PMA plays high resolution files up to 384kHz/32bit and DSD up to 11.2MHz from a computer in impeccable sonic quality. For the best performance from analogue inputs, the PMA features an Analog Mode which allows to switch off all unutilized sections like the digital input circuitry or the low noise display for an unaltered audio reproduction.

Channels 2

Digital in: USB-B / optical / coaxial / USB-A / 2 / 2 /

Sample Rate digital In 192 kHz / 24-bit

USB-B DSD Audio Streaming (DoP): DSD2.8 / DSD5.6

The PM6006 is an upgraded successor of the multi-award-winning PM6005. We've retained the pre-amp and power-amp sections that exclusively feature discrete components - not a single IC in sight of the signal path. The PM6006 is upgraded for peak current at the amplifier stage, which makes it possible to refine the sound for you in much more detail.

• Yamaha high sound quality, created by rich experience and tradition, and high technological expertise
• Pure Direct Mode for greater sound purity
• Simple and sophisticated design
• Phono MM terminal for vinyl playback
• Screw-type speaker terminals
• Speaker selector and speaker terminals for two systems
• Simple design remote control
• Head phone terminal

Audioengine N22 General Specifications
Type: Compact Integrated Stereo Amplifier Power Output: 80W peak total (22W RMS/40W peak per channel), AES Amplifier type: Dual Class A/B Voltages: 110-240V, 50/60Hz auto-switching for worldwide voltages Inputs: RCA and 1/8" (3.5mm) mini-jack Outputs: RCA variable preamp Speaker outputs: 5-way binding posts SNR: >95dB A-weighted THD+N: