The Cambridge Audio EXA100 is an integrated stereo amplifier with a built-in DAC, which means it combines two important jobs in one box. First, it takes the sound signal from your music sources and makes it powerful enough to drive a pair of speakers. Second, its built-in DAC (that stands for Digital-to-Analog Converter) turns digital music files, like the ones from your computer or TV, into the analog sound that speakers can actually play. Having both functions in one unit keeps your setup simpler and tidier.
Where does it fit in a music system?
The EXA100 sits right at the heart of a two-speaker (stereo) system, acting as the central hub that everything connects to. You plug your sources into it, such as a TV, a computer, or a phone, and you connect your speakers to it as well. The amplifier receives the music, processes it, boosts it, and sends it out to your speakers. Think of it as the brain and the muscle of your system working together.
Power and Sound
How much power does the EXA100 have, and does that matter?
The EXA100 delivers 100 watts per channel into 8 ohms and 155 watts per channel into 4 ohms, which is a generous amount of power for most homes. In everyday terms, "watts per channel" describes how much energy the amplifier can send to each speaker. More available power means the amplifier can handle loud passages, deep bass, and demanding speakers without straining or distorting. The reference to "8 ohms" and "4 ohms" simply describes different types of speakers, and the EXA100 delivers even more power when driving the more demanding 4 ohm kind, which is a sign of a robust design.
What does "Class AB with toroidal transformer" mean?
Class AB is a proven amplifier design that balances clean sound with efficiency, and a toroidal transformer is a high-quality type of power supply component. The class of an amplifier refers to the way it produces power. Class AB is a long-standing approach favored for delivering strong, detailed sound without wasting excessive energy. The toroidal transformer is the doughnut-shaped part that supplies steady, clean electrical power to the amplifier. A good transformer helps the music stay composed even during loud, complex moments, and it is one reason this unit has real weight to it.
Why does the EXA100 weigh so much?
The EXA100 weighs 12.8 kg (28.2 lbs), and that heft is actually a good thing in a serious amplifier. Much of that weight comes from the substantial power supply and transformer inside, along with a solidly built chassis. A heavier, well-braced enclosure reduces unwanted vibration and helps the internal components perform their best. In high-end audio, reassuring weight often signals quality parts and careful engineering rather than empty bulk.
The Built-In DAC and Digital Formats
What is the DAC and why does it matter?
The EXA100 uses an ESS Sabre ES9018K2M DAC, a well-regarded digital-to-analog converter chip that handles the important job of turning your digital music into sound. Every time you play a file from your computer, stream over Bluetooth, or listen to your TV, that digital information needs to be converted into an analog signal your speakers can reproduce. The quality of this conversion has a big effect on clarity and detail. The ESS Sabre family is respected for clean, precise, natural-sounding results.
What audio formats and quality can it handle?
The EXA100 supports high-resolution audio across its digital inputs, so you can enjoy detailed files well beyond standard CD quality. Over USB it handles files up to 384kHz/32-bit and DSD256, which are very high-resolution formats. The coaxial input supports up to 192kHz/24-bit, the optical input up to 96kHz/24-bit, and the HDMI eARC input up to 192kHz/24-bit. In plain terms, the higher those numbers, the more musical detail the file can contain, and the EXA100 is ready for the demanding files that serious listeners enjoy.
Connections and Controls
What can I plug into the EXA100?
The EXA100 offers a wide range of inputs so you can connect almost anything in a modern setup. There is a balanced XLR input for the highest-quality analog connection, multiple RCA line inputs for standard analog sources, a coaxial S/PDIF and an optical TOSLINK input for digital sources, a USB Type-B input for computers, and an HDMI eARC input designed to work neatly with a television. It also includes Bluetooth 5.0 with aptX HD for wireless playback from a phone or tablet. One thing to note is that there is no phono stage, so a turntable would need a separate phono preamp before connecting.
What outputs does it have, and what are they for?
The EXA100 includes several outputs that give you flexibility in how you build your system. There is a preamp out, which lets you send the signal to a separate power amplifier if you want to expand later. There is a subwoofer out for adding a dedicated subwoofer to reinforce deep bass. A headphone jack lets you enjoy private listening. Finally, there are two sets of speaker terminals, which give you options for connecting your speakers or running a second pair.
Can the EXA100 stream music on its own?
The EXA100 does not have built-in network streaming, but it does include Bluetooth for wireless playback from your devices. This means you can send music directly from a phone or tablet over Bluetooth 5.0 with aptX HD. For full network streaming from services and your home network, Cambridge Audio designed the EXN100 network player to pair with it, adding streaming capability while letting the EXA100 focus on being an excellent amplifier and DAC.
Design, Build, and Who It Suits
Why does Cambridge Audio build quality matter?
Cambridge Audio is a long-established British audio company known for thoughtful engineering and clean, understated design, and that philosophy shows in the EXA100. The brand has a reputation for building components that focus on faithful, natural sound rather than flashy gimmicks. The EXA100 reflects that with its solid construction, quality internal parts like the toroidal transformer and ESS Sabre DAC, and a restrained appearance meant to fit gracefully into a living space.
What are the dimensions and finish?
The EXA100 measures 115 x 430 x 341 mm (4.5 x 16.9 x 13.4 inches) and comes in a Lunar Grey finish. That size is typical for a full-featured integrated amplifier, so it fits comfortably on a standard equipment rack or shelf, as long as you leave a little room around it for air to circulate. The Lunar Grey finish gives it a modern, elegant look that pairs well with both light and dark decor.
Who is the EXA100 best suited for?
The EXA100 is ideal for someone new to high-end audio who wants one capable, well-built box to anchor a great-sounding system. It suits people who want to connect a TV, a computer, and wireless devices while enjoying real high-resolution playback and plenty of power for quality speakers. Because it offers a preamp out, a subwoofer out, and pairs with the EXN100 network player, it also rewards you if you plan to grow your system over time. If you want serious sound with room to expand, the EXA100 is a welcoming place to start.
