Cambridge Audio CXA80 Integrated Amplifier

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    Rated at 80 Watts per channel this class AB amplifier design will reveal spectacular detail in your music. Separate dual mono windings on a low-flux toroidal transformer further enhance performance.

    Using a high-specification 24-bit/192kHz DAC chip, it offers a powerful upgrade for all your digital sources, featuring two optical inputs, a co-axial digital input and an asynchronous USB Audio socket.

    Analog sources are catered for with balanced XLR inputs, RCA inputs and a front 3.5mm aux jack. The floating effect of the chassis, the brushed finish, and the easy-to-read front panel, all create an amplifier that’s beautiful and well engineered.


    Separate transformer taps for left and right channels, twin rectifiers and separate PSUs give dual mono operation of the left and right power amplifiers.


    A centrally mounted audiophile grade oversize toroidal transformer, and extruded heatsinks allows a delivery of 2 x 80 Watts RMS into 8 Ohms. Into 4 Ohms, this increases to 2 x 120W.


    The internal PCB layout is optimized for minimal left/right 'crosstalk' and to maximize the quality of stereo separation. By using symmetrical and separated circuit paths for the two channels, we ensure that it delivers stunning stereo separation and minimum cross-channel interference.


    The amp utilizes two separate windings on the oversize toroidal transformer. This is like having two toroidal transformers wound onto one chassis, providing separate windings for each amplification module. If you get a huge transient in the right channel, it won’t unsettle what’s going on in the left. The output is stable and remains unflustered.


    The transistors used come with an integrated Dynamic Thermal Tracking System. This provides a far more accurate reading of the real temperature of a transistor, and relays faster because it’s not a delayed heating effect.


    Because we want to ensure there’s no unnecessary high frequency noise affecting the subwoofer, we’ve put the output filter at 3KHz. This is high enough to prevent any phase shift associated with the low pass filter affecting what happens below 200Hz. The result is a phase linear subwoofer output signal which is clean and musical.


    The amp has only 24 components in the signal path. The big difference is that there are now 500 support components as well. Their job is to guarantee those 24 key components are absolutely optimal all the time, regardless of mains fluctuations and other influences.


    In order to offer 24-bit 192kHz resolution via asynchronous USB we use a specialist XMOS device dedicated to the USB input. We’ve also written a custom driver to allow PC users to access the higher sample rates available in USB Audio 2 mode.


    We offer an optional BT100 audio receiver. To ensure that this does not interfere with other components in the amplifier, it’s isolated internally on the digital input board. We even include an extension cable which enables you get the best Bluetooth range.

    • 80 watts x 2 channels into 8 ohms (120 watts x 2 channels into 4 ohms)
    • 4-ohm capability
    • Class A/B amp design
    • Asynchronous USB technology for reduced timing jitter and better sound
    • Ground lift switch to eliminate potential noise through USB connection
    • Remote control included
    • Toroidal power transformer for low noise and high-current output
    • Separate transformer taps for left and right channels, twin rectifiers and separate power supply units for dual mono operation of the left and right power amplifiers
    • Separate left and right channel heat sinks and symmetrical separated circuit paths for maximum stereo separation and minimal cross-channel interference
    • High-quality ALPs film-type volume control provides superb low-level channel balance and stereo imaging
    • Relay-based input source switching with silver-plated contacts for maximum signal transfer
    • Full-metal casework with thick, brushed aluminum front panel and acoustically damped chassis for enhanced resonance control
    • 16-15/16"W x 4-1/2"H x 13-7/16"D
    • Weight: 19.1 lbs.
    • Wolfson WM8740 DAC


    • USB (Type B) input for computer connection
      • supported bit depth and sample rates: up to 24-bit/192kHz
      • dedicated Cambridge Audio USB 2.0 driver required for 24-bit/192kHz playback on a Windows® PC
    • 2 optical and 1 coaxial digital audio inputs
    • Balanced stereo XLR inputs provide connectivity for high-end and professional audio sources
    • 4 stereo RCA audio inputs, 1 front-panel minijack (3.5mm)
    • Bluetooth®-ready with BT100


    • 1 stereo RCA preamp output and a dedicated mono subwoofer output
    • Minijack headphone output
    • Switchable A+B speaker outputs with binding-post connectors

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