Onkyo P-3000R
Onkyo P-3000R
Onkyo P-3000R

Onkyo P-3000R: Preamplifier designed to connect both analogue and digital sources

The Onkyo P-3000R preamplifier is designed to connect both analogue and digital sources with a full range of inputs, including a dedicated moving magnet input, plus the same types of digital inputs as at the output of a branded CD player. There’s also a USB input for delivering high-resolution decoded digital audio from a PC. Since the built-in DAC is built on a dual PCM1795 chip supporting a signal with a resolution of 32 bits and a sampling rate of 192 kHz, and includes the same proprietary jitter suppression circuitry as the CD player, the user can safely connect the included source digitally without fear deterioration in sound quality.

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Today, the most serious path for working with the USB bus is perhaps implemented in the Onkyo P-3000R. Japanese engineers took a two-channel audiophile-grade preamplifier as a basis and supplemented it with the most advanced path on dual 32-bit Burr-Brown DACs. The digital and analog sections, of course, receive power from different stabilizers. The first, in addition to USB, has other inputs, incl. even AES/EBU, and therefore allows you to connect any digital source. The analog section is equipped with a switch for four RCA inputs, a built-in RIAA equalizer, a tone block, a tape recorder output, an adjustable Preout and a balanced output for the final amplifier. The second feature of the P-3000R is the ability to divide the signal into frequency bands to implement bi-amping.

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Of course, the device has a remote control, there is also an input for a 12-volt trigger, which allows you to turn all components on and off with the press of a single key. Like all other components in the series, the Onkyo P-3000R is built on a solid anti-vibration chassis. The display shows the name of the active input, as well as the volume level as it is adjusted. Regardless of whether you decide to use a digital or analog path to connect signal sources, it will be as “clean” as possible, since the circuits are completely separated from each other both in topology and in power supply.

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The Onkyo P-3000R case has a complex design. The side panels, front and top are made of aluminum and are mounted separately, which increases resistance to vibrations and resonances. The front panel includes a display with large characters, which is impressively and stylishly arranged with a volume control and input selector. The input selector knob can be used to adjust other parameters. At the bottom of the facade there is a button for selecting settings for a specific function – balance, timbres, etc., as well as an SRC button for increasing the signal sampling frequency by 2 or 4 times (via the USB port only 2 times). The Digital button turns off the display of digital sources. On the left side of the front panel there are power supply and standby keys. On the right there is a 6.3 mm discrete headphone amplifier jack and a Direct key, which bypasses the tone control circuits.

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Inputs: four line RCA (including jacks for recording monitoring), MM phono jacks, balanced AES/EBU (XLR), two each coaxial and optical, USB port (with C-Media CM6631 chip), which operates in asynchronous mode at installation of the appropriate driver on the PC and can receive files in 32-bit/192 kHz resolution. Outputs: optical, RCA for recording and Pre Out (RCA) pair. Using the latter, you can organize a bi-amping connection. It is possible to create a through channel by connecting the source to the Line 2 input and switching the preamplifier outputs to a fixed mode, which is convenient when working in DC systems. There is an RI jack for controlling the proprietary Onkyo Dock and a trigger output (12 V).

Features of Onkyo P-3000R 

DIDRC (Dynamic Intermodulation Distortion Reduction Circuitry) technology
Separate circuits for digital and analog sections
Separate power transformers for digital and analog circuits (toroidal for analog circuits)
Separate anti-vibration aluminum panels – top, front, side
New PCB design to minimize vibration
Ultra-low jitter PLL technology
Sample rate control (up to 192 kHz)
Separate 192 kHz/32-bit Burr-Brown DACs for right and left channels
Direct mode
Tone controls (Bass/Treble)
Independent headphone amplifier
Phono preamplifier jack (MM)
USB input 192 kHz / 32 bit for HD audio playback from a personal computer (software must be downloaded from the manufacturer’s website)
5 digital inputs (AES/EBU, 2 optical, 2 coaxial) and optical output
Gold plated 19 -millimeter terminals for connecting acoustics
12 V trigger output

Characteristics of Onkyo P-3000R 

Total harmonic distortion 0.005% (20 Hz – 20 kHz)
Sensitivity/impedance RCA line inputs: 200 mV/47 kOhm, MM phono stage input: 2.7 mV/ 47 kOhm
Output voltage/impedance (Pre Out, RCA) nominal: 1 V/330 Ohm, maximum: 5 V/330 Ohm
Frequency range (line inputs) 5 Hz – 100 kHz (0 dB, -3 dB)
HF tone control: ± 8 dB (20 kHz), LF: ± 8 dB (50 Hz)
Signal-to-noise ratio (phono input/line input) 80 dB/110 dB
Inputs 4 RCA line inputs, MM phono input, balanced AES/EBU (XLR, Amphenol (up to 192 kHz), 2 coaxial (up to 192 kHz), 2 optical (up to 96 kHz), asynchronous USB port (32 bit/192 kHz)
Outputs headphone jack (6.3 mm), RCA for recording, 2 RCA (Pre Out)
Other switching trigger output (12 V), RI bus connector for dock control, ground terminal
Display switchable, 2 brightness modes
Dynamic intermodulation distortion suppression circuit DIDRC yes
PLL technology (phase locked loop) to reduce jitter yes Power
supply 2 transformers Power
consumption 29 W
Remote control RC-797S, universal
Dimensions (WxHxD) 435x99x333 mm
Weight 11 kg