| Content | High sound quality and sophisticated design based on Yamahaʼs rich experience and high-end model concepts. A HiFi Amplifi er for enjoying excellent sound.
- 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
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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 |
Advanced original amplifier circuitry and elimination of signal loss—resulting in a truly
emotional and dynamic sound. This is a high-grade integrated amplifier that has inherited
the new sound of Yamaha in the pursuit of rich musicality..
- Floating and Balanced Power Amplifier with MOSFETs
- All-stage fully discrete construction, balanced transmission and low impedance design
- Superior quality electronic volume control for optimum sound
- Large capacity power supply unit delivers energetic, dynamic sound with fast response
- Symmetrical design in pursuit of ideal stereo reproduction
- Discretely configured phono amp
- Headphone amp with fully discrete configuration
- Level meters visually reflect the dynamics in the music
- Elegant design with luxurious real wood panels
- Original speaker terminals combine ease of use and beauty with high sound quality
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Τi 60 tube
Integrated tube amp.Four line inputs.
2X12AU7, 4x EL34, 1x12AX7
35 Wrms per chan.4-8 ohm.
Class AB push-pull
Remote control included.
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Technical specification
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Integrated Amplifier
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Frequency response:
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10 Hz - 50 kHz (± 0.5 dB)
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Total harmonic distortion (THD):
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1 % (1 kHz)
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Signal-to-noise ratio:
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92 dB
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Input Impedance:
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100 kOhm
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Vacuum tube:
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4x KT88/EL34, 2x 12AU7, 2x 12AX7, 2x 6SN7
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Dimensions W x H x D:
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440 x 220 x 390 mm
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Weight:
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28 kg
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Accessories:
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Remote Control
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Input Terminals:
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Tape, CD, AUX, Tuner
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Output terminals:
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Tape out
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Circiut:
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Class A/B P.P.
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Colour:
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Chassis chrome, transformer black
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Colour front:
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black, silver
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Sensitivity
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590 mV
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Output Impedance:
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4 Ohm, 8 Ohm
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Power Output:
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2 x 70 Watt @ 1 % THD
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Consumption:
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max. 380 Watt
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Highlights
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switchable reduction of feedback
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The 851W has class XD amplification at 200W into 8 Ohms in stereo mode or 500W RMS per amp in mono bridged mode, separate toroidal transformers for the power amp and input/other circuitry, and terrapin impedance buffering modules. All in all it\'s the best sounding amplifier we have ever made.
Our proprietary Class XD amplification
Separate toroidal transformers for power amp and input/other circuitry
Our bespoke Terrapin impedance buffering modules – separating amplifier and signal impedance
200W into 8 Ohms stereo mode or 500W RMS per amp mono bridged mode
CAP5 protection from DC spikes, overheating and clipping
All metal chassis with premium components
Remote Control – Compatible with the entire 851 range
Power output – stereo/mono 200W per channel into 8 Ohms
350W per channel into 4 Ohms
Power output – bridged mono 500W 8 Ohms
800W 4 Ohms
THD (unweighted) < 0.001% 1 kHz
< 0.005% 20 Hz - 20 kHz
Frequency response 5Hz – 80kHz
S/N ratio (ref 1W / 8 Ohn) >90dB (unweighted)
Sensitivity – stereo or mono 1.5V rms unbalanced
1.5 + 1.5V rms balanced
Sensitivity – bridged mono 0.775V rms unbalanced
0.775V + 0.775V rms balanced
Input impedances Balanced input 38 kOhm
Unbalanced input 68 kOhm
Power amp damping factor > 110 at 1 kHz
Max. power consumption 2400W
Standby power consumption Standby | High sound quality and sophisticated design based on Yamaha\'s rich experience and high-end model concepts. A HiFi Amplifi er for enjoying excellent sound.
- 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
Specs
Receiver / Integrated Amplifier
| Maximum Power (4 ohms, 1kHz, 0.7% THD, for Europe) |
140 W + 140 W |
| Maximum Power(8 ohms, 1 kHz, 10% THD) |
100 W + 100 W |
| High Dynamic Power/Channel (8/6/4/2 ohms) |
125 W/150 W/165 W/180 W |
| Frequency Response |
10 Hz-100 kHz(0 ± 0.5 dB / 0 ± 3.0 dB) |
| Total Harmonic Distortion (CD to Sp Out, 20 Hz-20 kHz) |
0.2% |
| Signal-to-Noise Ratio (CD) |
100 dB (S: 500 mV) |
| Input Sensitivity (CD) |
500 mV / 47 k-ohms |
| Standby Power Consumption |
0.5 W |
| Dimensions (W x H x D) |
435 x 141 x 333 mm; 17-1/8" x 5-1/2" x 13-1/8“ |
| Weight |
6.7 kg; 14.8 lbs. |
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