Denon PMA-2500NE Integrated Amplifier

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  • Denon PMA-2500NE Integrated Amplifier - Jamsticks

Denon PMA-2500NE Integrated Amplifier

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  • Denon PMA-2500NE Integrated Amplifier

    Product Description

    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 Denon PMA-2500NE series, designed for today’s 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 Denon’s previous PMA-2000 series. With its ultimate built-quality, unique Denon technologies and state-of-the-art connectivity, the Denon 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.



    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

    Advanced UHC-MOS Single Push-Pull Circuit

    To achieve impeccable balance between delicate details and vigor in sound, the Denon PMA-2500NE employs Ultra High Current MOS (UHC-MOS) FETs, capable of producing ample current in a single push-pull configuration which deliver superior linearity in the output stage throughout the sonic range from musical details to robust current. The technique of driving multiple amplifier devices in parallel to secure robust current has solved the problem of muddiness in sound caused by uneven performance among the devices. And to achieve musical expression filled with the delicate nuances of sound, Denon has continued to focus on amplification performed by one pair of devices. The Denon PMA-2500NE is endowed with high-voltage, large-capacity UHC-MOS FETs (peak current of 210A). In addition, the Dual FET + cascade bootstrap connection maintains a constant voltage for the UHC-MOS while improving temperature stability, to reliably bring out the superior acoustic characteristics of UHC-MOS.


    DC amp circuitry

    Active servo circuitry and coupling capacitors have been completely eliminated from input to output to create a thoroughly “simple & straight” design for the circuits. To achieve amp circuitry with highly stable direct current (DC), a simple passive circuit with capacitors and resistors have been used in the DC servo circuit. In addition, a re-examination of the FET differential input amp circuitry using a Dual FET + cascade bootstrap connection has resulted in improved DC characteristics and more stable playback in the lower range compared with conventional designs.

    Robust power supply circuitry

    The Denon PMA-2500NE is equipped with two transformers that have been mounted facing opposite directions in a leakage cancelling (LC) mount system to cancel mutual influences of magnetic flux, a source of noise, leaking from the transformers. Denon’s custom-designed, large-capacity electrolytic capacitors have been used for rectification, and low-loss, low-noise, high-speed Schottky barrier diodes have been used in the rectifier circuitry. This ensures a sufficient supply of clean current. To achieve a “simple & straight” circuit configuration, the connection unit between the diode unit and the block capacitor has been removed to drastically shorten the current supply line to the power amp. Extremely thick OFC wiring material has been used for the power line to reduce impedance.


    USB-DAC supporting 11.2-MHz DSD and 384-kHz/32-bit PCM

    The Denon PMA-2500NE provides USB-DAC functions that support high-resolution 11.2-MHz DSD and 384-kHz/32-bit PCM input signals. DSD transmission methods support ASIO native playback and DSD Audio over PCM Frames (DoP). Since asynchronous transfer is controlled by the Denon PMA-2500NE master clock rather than the clock of a computer the transfer is free of jitter. The D/A converter used in the PMA-2500NE is the same 384-kHz/32-bit and DSD capable top class DAC Burr Brown PCM1795 used in the DCD-2500NE to deliver a clean, high-grade sound.


    DENON PMA-2500NE



    Channels 2

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

    Sample Rate digital In192 kHz / 24-bit

    USB-B DSD Audio Streaming (DoP):DSD2.8 / DSD5.6 <=11.2

    DAC chip PCM1795

    Asynchronous mode rear USBo

    Bit-perfect transmission o

    AL 32 Processing Advanced AL32 Plus

    DAC Master Clock Design o

    Streaming audio from PC o

    UHC-MOS single push pull circuit o (Advanced)

    LC mounted twin transformer o

    Wide range amplifier o

    High current dynamic power supply o

    Power amp discrete construction o

    Micro processor auto off o

    Balance / Bass / Treble / Loudness o / o / o / -

    Solid Heat Sinks o

    Low Noise OELD display o

    Source Direct o

    Power Amp direct o


    Audio Inputs 5

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

    Phono Input: MM / MC o / o

    Audio Outputs 1

    Power Amp Direct IN o

    Gold plated Cinch o

    Number of terminals 2



    Output power 8 Ohm (20 Hz - 20 kHz, T.H.D. 0.07%) 80 W

    Output power 4 Ohm (1 kHz, T.H.D. 0.7%) 160 W

    Total Harmonic Distortion 0.01 %

    Input Sensitivity: MM 2.5 mV / 47 kohm

    Input Sensitivity: MC 200 µV / 100 ohm

    Signal to Noise Ratio: MM/MC 89 dB / 74 dB

    Input Sensitivity: High level 135 mV / 47 kohms

    Signal to Noise Ratio: High level 110dB

    Treble Control ± 8 dB at 10 kHz

    Bass Control ± 8 dB at 100 Hz



    Available Colours: Premium Silver / Black o / -

    Metal Front Panel o

    Power Consumption in W 310

    Standby Consumption in W 0.2

    Auto Power Off o

    Detachable Power Cable o

    Remote Control RC-1207

    System Remote Function o

    All eligible company warranty and service support is being provided on Denon PMA-2500NE