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The 255i is Perreaux's most powerful, most sophisticated integrated amplifier. It's performance and specifications are truly impressive, but hearing the 255i is when you will truly appreciate the quality engineering, design and craftsmanship. The 255i is the most advanced integrated amplifier Perreaux has ever produced.

 

Optional internal 32-bit/384kHz Digital to Analogue Converter (DAC) and Moving Magnet/Moving Coil (MM/MC) Phono Preamplifier modules ensure complete integration of digital source components (such as network music servers and set-top digital receivers), as well as turntables, into a high-performance system.

Perreaux 255i Stereo Integrated Amplifier

£6,895.00Price
Module Add-On
  • General Features

    High Power Design

    The 255i is designed to handle difficult speaker loads with ease. With it's high powered MOSFET design, the 255i is capable of continuously delivering a genuine 360Wrms into an 8Ω load and a huge 530Wrms into 4Ω.

    High-current Custom Power Supply

    At the heart of any great amplifier is a great power supply. 3 separate transformers feeding 4 independent power supplies ensure the 255i will drive difficult speakers with ease, producing controlled, quality audio.

    High Damping Factor

    The 255i's performance features a high damping factor. Ensuring absolute authority and control of any loudspeaker.

    Advanced Microprocessor Control

    The extensive range of user functions and complex functions are managed by a powerful onboard microprocessor. This gives you more control but is electrically isolated from the audio paths, ensuring faithful sound reproduction.

    Advanced Stepped Volume Control

    3rd generation microprocessor controlled analogue volume control. The éloquence has advanced all the benefits of a pure unaltered analogue signal path which is merely "switched" to your exact desired volume. This gives you convenience and complete control with the cleanest signal path possible.

    Advanced Lossless Stepped Off-Set Balance Control

    3rd generation microprocessor controlled analogue balance control. There is no loss of music quality due to the left and right volume controls being analogue "switched" independently without added circuitry. This is the ultimate in allowing you to perfectly adjust the balance volume left or right without signal loss.

    Non-Invasive Protection

    The 255i features sophisticated microprocessor protection for the amplifier and connected load. The protection covers supply (soft-charge), over-current, over-temperature, DC offset, internal AC supply and DC fuse protection. The protection is non-invasive and does not degrade the signal path.

    Internal Headphone Amplifier

    The headphone amplifier gives the user all the benefits of the 255i's engineering and design advances, with the convenience of headphones.

    Dual sets of speaker binding posts

    For ease of bi-wiring loudspeakers and enhanced sound quality.

    Balanced (XLR) input

    For use with balanced sources. Enabling you to take full advantage of the benefits of balanced audio.

    Home Theatre/Pass-Through Loop

    Allows the integration of the éloquence into a home theatre/external system as a two channel power amp, then back to full a stereo integrated for music listening.

    iPod Input

    Plug your iPod directly into the front panel for convenient iPod connectivity.

    IR (infrared) input and output

    Enables additional remote control options to be connected and controlled by the éloquence Integrated Amplifier.

    Trigger input and output

    Allows the 255i to have standby contol over, or be controlled by, connected equipment. Offering high system integration and convenience.

    Isolation Feet Options

    To minimize vibrations, aftermarket "feet" can be easily attached if desired. Also, the éloquence has the ability to go from 4 feet to 3 feet to further ensure mechanical isolation

    User Controls

    Interactive Menu System
    Infrared (IR) Remote Control
    Volume Up/Down

    I/O Compliment

    Inputs

    1 pair Balanced Inputs (XLR)
    4 pairs Unbalanced Inputs (RCA)
    1 Amp In (RCA)
    1 Auxiliary (3.5mm jack)

    Outputs

    1 pair Unbalanced Line Outputs (RCA)
    1 pair Unbalanced Preamplifier Outputs (RCA)
    2 pairs Binding Posts per channel
    1 Headphone (6.35mm jack)

    Misc

    1 Trigger input (3.5mm jack)
    1 Trigger output (3.5mm jack)
    1 External IR input (3.5mm jack)
    1 IR output (3.5mm jack)
    1 RS232 serial port (RJ45)

    Optional Modules*

    USB Digital to Analogue Converter (DAC)

    32-bit/384kHz upsampling allows high quality digital audio connections to be made. Inputs include 2x Coax, 2x Optical (Toslink) and 1x USB audio.

    MM/MC Phono Stage

    Allowing both Moving Magnet (MM) and Moving Coil (MC) cartridge connection.

    * These optional modules are retrofittable and available after purchase

  • Dimensions

     
    Width: 426mm (16.8")
    Depth: 344mm (13.5")
    Height: 149mm (5.9")
    Weight: 25kg (55lb)

    Amplifier

     
    Rated Power Output (per channel): 250W into 8Ω
    500W into 4Ω
    Maximum Power Output (prior to clipping, per channel): 360W into 8Ω
    530W into 4Ω
    Total Harmonic Distortion + Noise
     Typically: 
     20Hz to 20kHz:

    0.002% @ 1kHz, 250W into 8Ω 
    0.010%, 250W into 8Ω
    Frequency Response
     20Hz to 20kHz:
     5Hz to 60kHz:

    +0.00dB, -0.15dB
    +0.00dB, -0.50dB
    Damping Factor: 800 @ 1kHz, 250W into 8Ω
    Signal to Noise Ratio (unweighted): better than 98dB, ref. 250W

    Preamplifier

     
    Input Impedance
    Unbalanced:
    Balanced:

    12kΩ
    22kΩ
    Input Overload
    Unbalanced:
    Balanced:

    8Vrms
    8Vrms
    Volume Control Range: -95.5dB to +31.5dB
    Volume Control Resolution: 0.5dB per step
    Input Volume Trim Range: ±40dB
    Balance Resolution: 0.5dB
    Balance Range: ±40dB

    Headphone Amplifier

     
    Headphone Rated Power Output: 1.0W into 32Ω
    150mW into 300Ω

    Headphone Total Harmonic Distortion + Noise

    Typically:
    20Hz to 20kHz:
    0.001% @ 1kHz, 1.0W into 32Ω
    less than 0.002%, 1.0W into 32Ω
    Headphone Volume Trim Range: ±40dB

    255i DAC Module Specifications

    Digital Inputs: 2 SPDIF Coax (RCA)

    2 SPDIF Optical (Toslink)
    1 USB (Type B)

    Chipsets: ES9038PRO Sabre DAC / XMOS chipset solution (32 bit / 140db noise floor)
    Input Sample Rate: 32, 44.1, 48, 88.2, 96, 176.4, 192kHz (Coax, Optical)
    32, 44.1, 48, 88.2, 96, 176.4, 192, 352.8, 384 kHz /  DSD 64, 128, 256  (USB)
    Input Word Length (maximum): 32-bit (Coax, Optical)
    32-bit (USB)
    Input Impedance: 75Ω (Coax)
    Transformer Coupled
    Coax:
    Optical:
    USB:

    Yes
    No
    Asynchronous and Galvanically Isolated

    Analogue Section

     
    Digital to Analogue Conversion: 32-bit/384kHz
    Output Voltage: 2.0Vrms @ 0dBFS
    Total Harmonic Distortion + Noise 0.002%, 20Hz-20kHz @ 0dBFS

    Frequency Response

    20Hz to 20kHz:
    5Hz to 94kHz:
     

    +0.0dB, -0.1dB
    +0.0dB, -3.0dB

    Dynamic Range (unweighted): better than 115dB @ 0dBFS
    Signal to Noise Ratio (unweighted): better than 115dB @ 0dBFS
    Channel Separation: better than 110dB @ 0dBFS
    Stop Band: 105kHz
    Stop Band Attenuation: 125dB

    255i Phono Module Specifications

    Input Impedance
    Low Gain (MM):
    High Gain (MC):

    47kΩ
    100Ω
    Input Capacitance:

    22pF

    Gain
    Low Gain (MM):
    High Gain (MC):

    40dB
    60dB

    Total Harmonic Distortion + Noise
    Typically:
    20Hz to 20kHz:


    0.002% @ 1kHz, low gain setting
    less than 0.010%, low gain setting
    RIAA Accuracy: ±0.5dB, 20Hz-20kHz
    Signal to Noise Ratio (unweighted):

    better than 85dB, low gain setting

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