Cambridge Audio has spent decades building a reputation as a British hi-fi house that pursues clean, honest sound engineering without theatrics. The company has long championed the idea that a source component should get out of the way, delivering the signal with as little added coloration or noise as the electronics allow. The CXN100 is the latest expression of that philosophy in the CX series, sitting as the network streamer and digital preamplifier that anchors a modern separates system. It is a source-first, digital-first component built around a serious DAC and a mature streaming platform, and this deep dive unpacks exactly why each design decision was made and what it does for your ears and your rack.
Core Architecture and Conversion
What DAC does the CXN100 use and why does it matter?
The CXN100 uses the ESS ES9028Q2M, a chip from the SABRE32 family. This matters because the converter is the single component most responsible for turning digital samples back into an analog waveform, and the ES9028Q2M is a well-regarded 32-bit design that leans on ESS's proprietary HyperStream modulator architecture. HyperStream is a multi-bit delta-sigma topology that oversamples aggressively and shapes quantization noise well outside the audible band, which in practice yields low distortion and a very low noise floor. The Q2M variant is a two-channel part, so it is applied directly to the stereo task rather than being borrowed from a multichannel design. The audible payoff is clean, low-glare high frequencies and strong low-level resolution, meaning quiet detail such as reverb tails and room ambience survives intact.
How high a resolution can the CXN100 actually play?
The CXN100 handles PCM up to 768kHz and 32-bit, DSD up to DSD512 played natively, and native MQA decoding. That range covers everything a realistic library will ever contain and then some. The important word for DSD is native, which means the streamer feeds the DSD bitstream to the converter without first transcoding it to PCM, preserving the format's intended noise-shaping behavior. Native MQA means the CXN100 performs the final rendering and unfolding of MQA files internally rather than relying on a partial software decode. For file containers, it reads WAV, FLAC, ALAC, AIFF, WMA, MP3, AAC, and OGG, so lossless and lossy sources alike are covered without needing a separate media server to convert them.
Does the CXN100 work as a preamplifier?
Yes, the CXN100 includes a digital preamp mode, which lets it act as the volume-controlling hub feeding a power amplifier directly. This works by applying gain and attenuation in the digital domain ahead of, or within, the DAC stage rather than adding an extra analog volume stage. The practical benefit is a shorter signal path when you want to run straight into a power amp or active speakers, avoiding a separate line preamplifier and its associated circuitry and cost. If you prefer to run the CXN100 into an integrated amplifier's line input instead, you can leave it at fixed output and let the downstream volume control take over, so it adapts to either system topology.
Analog Output Stage, Power, and Build
What outputs does the CXN100 provide and why include balanced XLR?
The CXN100 offers unbalanced RCA and balanced XLR line outputs, plus coaxial and optical digital outputs. The inclusion of balanced XLR is significant because a balanced connection carries the signal as two mirror-image copies on separate conductors, and the receiving device rejects any noise that is common to both. Over longer cable runs, or in electrically noisy environments, that common-mode rejection keeps hum and interference out of the audio. The unbalanced RCA output remains for the many amplifiers that use it, so you are not forced into either connection type. The digital outputs let you bypass the internal DAC entirely and send the raw bitstream to an external converter, which is useful if you later add a standalone DAC and want to use the CXN100 purely as a transport and streaming brain.
What is not included on the CXN100, and why?
The CXN100 has no analog inputs, no headphone output, and no dedicated subwoofer output. These omissions are deliberate rather than oversights. This is a digital source and digital preamp, so an analog input would require an extra analog-to-digital conversion stage that would compromise the purity of the digital-first path. Leaving off a headphone amplifier avoids bolting a compromised low-power amp stage into a component whose job is line-level and preamp duty, and it keeps the internal layout focused. Subwoofer management is generally handled downstream by an integrated amp or a subwoofer's own high-level or line inputs, so the CXN100 keeps its output stage simple and clean. Understanding these choices helps you plan the system around it: it wants a power amp or integrated amp, and it wants digital or network sources.
How is the CXN100 built and how large is it?
The CXN100 measures 430 x 85 x 305 mm (16.9 x 3.4 x 12.2 inches) and weighs 3.55 kg (7.83 lbs), in the Lunar Grey finish. That 430 mm width is the standard full-size component footprint, so it stacks and aligns cleanly with other CX series separates and most standard racks. The relatively modest weight reflects a compact, efficiently laid out streamer rather than a heavily built power component, which makes sense given that it is a source device rather than an amplifier full of large transformers and heatsinks. The Lunar Grey casework continues the understated CX series aesthetic, with the enclosure serving both to shield sensitive circuitry and to present a clean, low-resonance chassis.
Why does the power supply design matter in a streamer?
Power supply quality matters in a streamer because the DAC and its clocking circuitry are extremely sensitive to noise on their supply rails, and any ripple or interference riding on the power can translate into jitter and elevated noise in the output. A well-executed source component isolates the digital streaming and networking sections, which are electrically noisy by nature, from the sensitive analog and conversion stages. The goal is to give the converter and its reference a clean, stable feed so the low-level resolution the ES9028Q2M is capable of is not squandered. In listening terms, a quiet, stable supply is what lets a streamer present a truly black background against which fine detail and dynamic contrasts stand out.
Streaming Platform and Connectivity
What streaming services and protocols does the CXN100 support?
The CXN100 supports AirPlay 2, Chromecast built-in, Roon Ready, Spotify Connect, Tidal Connect, Qobuz, Amazon Music, Deezer, Internet Radio, and UPnP. This breadth matters because it means the streamer speaks the native protocol of nearly every major ecosystem rather than forcing you into a single walled garden. Roon Ready certification is particularly relevant for enthusiasts, since it means the CXN100 acts as a certified Roon endpoint with bit-perfect delivery and tight integration into Roon's library management and DSP. Tidal Connect and Spotify Connect let you start playback from within those native apps and hand the stream directly to the CXN100, keeping the audio path clean and the control familiar. UPnP support lets it pull from a local network-attached library, so your own ripped and downloaded files are first-class citizens.
How do you get audio into the CXN100 from wired and wireless sources?
The CXN100 accepts audio through USB-B, USB-A, coaxial S/PDIF, optical TOSLINK, and Bluetooth 5.1 with aptX HD. Each input serves a distinct purpose. The USB-B input is asynchronous and handles up to 768kHz/32-bit PCM and DSD512, making it the highest-bandwidth path for a directly connected computer; asynchronous operation means the CXN100's own clock governs timing rather than the computer's, which reduces jitter. The USB-A port is for connecting media such as a USB drive so you can play files without a network. Coaxial and optical S/PDIF accept the outputs of disc players, televisions, and other digital sources, with optical additionally providing galvanic isolation since it carries light rather than an electrical connection. Bluetooth 5.1 with aptX HD covers casual wireless playback from phones and tablets at higher quality than the baseline SBC codec.
How does the CXN100 connect to your network?
The CXN100 connects via dual-band Wi-Fi or wired Ethernet. Dual-band Wi-Fi means it can use both the 2.4GHz and 5GHz bands, and choosing 5GHz where available reduces congestion and interference for more reliable high-resolution streaming. For the most stable connection, especially with large high-resolution files, the Ethernet port provides a wired link that removes wireless variability entirely. Giving you both means you can place the component wherever it looks and sounds best and still get a dependable connection, whether that is next to your router or across the room.
What does the StreamMagic app do and does the CXN100 have EQ?
The CXN100 is controlled by the StreamMagic Gen 4 app, which includes a 7-band EQ. The app is the primary control surface, unifying your services, local libraries, inputs, and presets into a single interface and handling firmware updates that keep the platform current over time. The 7-band EQ is notable because it gives you room and taste correction directly within the source, letting you tame a bright room or reinforce a thin bottom end without inserting an outboard equalizer into the signal chain. Because the adjustment happens in the digital domain within the streamer, it is repeatable and non-destructive, and you can dial it back to flat whenever you want the untouched signal.
What information does the front display show?
The CXN100 has a large high resolution color screen at 1280 x 574 pixels. That resolution is high enough to render album artwork crisply along with track metadata, sample rate, and source information from across the room. For a source component, the display does real work: it confirms at a glance what format and resolution are actually playing, which is exactly the feedback an enthusiast wants when verifying that a high-resolution or MQA stream is being handled as intended rather than silently downsampled. It turns the streamer into something you can operate without always reaching for the app.
Positioning and Conclusion
Where does the CXN100 sit in the Cambridge Audio lineup?
The CXN100 sits as the dedicated network streamer and digital preamp within Cambridge Audio's CX series of separates, the tier designed to be combined into a modular system. It represents an evolution of the company's long-running network player line, updating the DAC to the ESS ES9028Q2M, moving to the StreamMagic Gen 4 platform, and adopting the large high resolution color display. Relative to Cambridge Audio's all-in-one and integrated solutions, the CXN100 is the choice for listeners who want to build around separate amplification and retain the flexibility to change components independently. Its digital preamp mode also lets it serve as the control center of a streamlined system running straight into a power amp or active speakers.
Who is the CXN100 for and what does its design add up to?
The CXN100 is for the enthusiast who has embraced digital and network sources and wants a single, well-engineered brain to manage them with high fidelity. Every choice reinforces that mission: a capable SABRE32 converter for clean, resolving conversion, native handling of DSD512 and MQA so nothing in your library is compromised, balanced and unbalanced outputs plus digital passthrough for system flexibility, a broad and certified set of streaming protocols so it fits any ecosystem, and an asynchronous USB-B input that keeps timing under the streamer's control. The deliberate absence of analog inputs and a headphone stage keeps the signal path focused on what it does best. In the CX series, it is the modern digital source that lets you assemble the rest of the system on your own terms.