Cambridge Audio has spent decades cultivating a reputation for what the London company calls "Great British Sound," a house voicing that prioritizes tonal neutrality, wide bandwidth, and low distortion without the artificial warmth or aggressive top end that plagues lesser electronics. The EVO ONE represents the culmination of that philosophy poured into a single chassis. Where the earlier EVO 75 and EVO 150 were all-in-one amplifiers that still required external loudspeakers, the EVO ONE closes the loop entirely: it is a complete music system with its own 14-driver active array built in. For the enthusiast, this is a fascinating engineering proposition, because it removes the amplifier-speaker interface variables that normally dominate system performance and lets Cambridge Audio control the entire signal chain from bits to acoustic output.
What exactly is the Cambridge Audio EVO ONE?
The EVO ONE is an all-in-one music system with a built-in 14-driver active speaker array, meaning it combines streaming, amplification, and loudspeaker into one enclosure with no external speakers required. This is a categorically different product from a traditional integrated amplifier. Because the drivers are permanently matched to dedicated amplifier channels and tuned by Cambridge Audio's DSP, the entire acoustic result is engineered as a unified system rather than assembled by the user. That eliminates impedance mismatches, cable variability, and the guesswork of pairing a speaker with an amp, which is exactly why the EVO ONE can deliver predictable, repeatable performance out of the box.
Where does the EVO ONE sit in the Cambridge Audio lineup?
The EVO ONE sits at the top of the EVO family as the most integrated and self-contained option, distinct from the EVO 75 and EVO 150 which are just-add-speakers amplifiers. If you already own loudspeakers you love and want to drive them, the EVO 150 with its higher output and speaker terminals is the logical choice. If you want a genuinely complete, single-box solution with no cabling to external cabinets, the EVO ONE is purpose-built for that. It carries the same design language and the same StreamMagic streaming intelligence, but its mission is convenience without compromising the core signal quality Cambridge Audio is known for.
Amplification and Driver Architecture
How does the 14-driver array actually work?
The 14-driver array works by dividing the frequency spectrum and the spatial radiation pattern across four 1 inch silk dome tweeters, four 2.25 inch aluminum midranges, and six 2.75 inch long-throw woofers, arranged to fire from the front, sides, and rear. This is a multi-way, multi-direction design. The front-firing drivers establish a stable, focused stereo image and vocal intelligibility, while the side and rear firing drivers energize the room to create a broader, more enveloping soundstage than a single pair of forward-facing drivers could produce from one cabinet. Distributing the load across many small drivers also reduces the excursion demanded of any single unit, which lowers intermodulation distortion and keeps the presentation clean at higher levels.
Why silk dome tweeters, aluminum midranges, and long-throw woofers?
Each material is chosen for the physical behavior best suited to its band. Silk dome tweeters use a soft, self-damping fabric that resists ringing and breakup, producing a smoother, less fatiguing high frequency response than harder domes that can exhibit a sharp resonant peak. The 2.25 inch aluminum midranges use a rigid metal cone that stays pistonic across the critical vocal and presence region, resisting flex-induced coloration so voices and instruments retain their true timbre. The six 2.75 inch long-throw woofers trade cone diameter for excursion; a long-throw design moves further in and out to displace the air volume needed for low frequency output despite the compact driver size, which is how a slim chassis can still generate meaningful bass.
What does 700 watts total across 14 drivers really mean?
The 700 watts total is the combined amplifier power distributed among all 14 drivers, not a single big amplifier feeding a passive crossover. In an active system like this, each driver group is powered by its own amplification and fed by an active crossover implemented in DSP rather than passive components. This matters because passive crossovers dissipate energy in resistors and inductors, introduce phase shifts, and interact with driver impedance in complex ways. By crossing over in the digital domain before amplification, Cambridge Audio achieves precise filter slopes, time alignment between drivers, and driver-specific equalization, then delivers each band its own clean power. The practical benefit is tighter transient control, better driver integration, and headroom that is allocated where the music needs it.
Why did Cambridge Audio choose Class D amplification here?
Class D was chosen because it is the only practical topology for packing 700 watts of amplification into a slim, cool-running chassis alongside 14 drivers and a full streaming platform. Class D amplifiers switch their output devices rapidly rather than operating them in a dissipative linear region, which yields very high efficiency and minimal waste heat. That efficiency is what allows this much power in a cabinet only 129 mm tall without massive heatsinks or a huge, hot power supply. Modern Class D implementations, when properly designed with good output filtering and feedback, deliver low distortion across the audio band, and in an active system the amplifier can be matched exactly to its known driver load, which removes the stability concerns that Class D sometimes faced with unpredictable passive speaker impedances.
Digital Engine, Power, and Formats
What digital formats can the EVO ONE play?
The EVO ONE handles PCM up to 384kHz/32-bit and DSD128, along with FLAC, ALAC, AIFF, WAV, WMA, MP3, AAC, and OGG. That upper PCM ceiling of 384kHz/32-bit covers every commercially available high-resolution download and streaming tier with headroom to spare, so nothing in your library gets downsampled at the digital front end. DSD128 support means direct playback of double-rate DSD files for those with SACD-derived collections. The broad codec list, from lossless FLAC and ALAC down to lossy AAC and MP3, ensures the system plays whatever you throw at it without transcoding hurdles, which matters when your library spans decades of acquisition habits.
How does the streaming platform work?
Streaming runs on StreamMagic Gen 4, Cambridge Audio's fourth-generation network platform, which manages both the hardware streaming stage and the app-based control experience. It provides native support for Roon Ready, Tidal Connect, Qobuz, Spotify Connect, Amazon Music, Deezer, and Internet Radio, plus AirPlay 2 and Chromecast built-in for casting from Apple and Android ecosystems. The advantage of native integrations over simple Bluetooth is that the audio stream stays digital and full-resolution across your network right up to the DAC, avoiding the lossy compression and re-encoding that Bluetooth imposes. Roon Ready certification in particular signals that the device meets Roon's requirements for bit-perfect delivery and reliable endpoint behavior, which is what serious library managers look for.
Does the wired and wireless networking matter for sound?
Yes, because the EVO ONE offers both dual-band Wi-Fi and Ethernet, giving you a choice between convenience and the lowest-jitter, most reliable connection. A wired Ethernet link removes the packet retransmission and interference variables of wireless networks, which is the preferable path for high-resolution 384kHz/32-bit streams where sustained bandwidth matters. Dual-band Wi-Fi provides flexibility where running a cable is impractical, and the 5GHz band typically offers cleaner throughput in congested environments than 2.4GHz. Bluetooth 5.1 rounds out the wireless options for casual, quick-connect playback from any phone or tablet.
The DAC is not published, so what can we say about it?
Cambridge Audio does not publish the specific DAC chip in the EVO ONE, so the honest answer is that the converter model is undisclosed. What we can say with confidence is that the digital-to-analog stage must be capable of decoding the full stated envelope of PCM up to 384kHz/32-bit and DSD128, which places it firmly in the high-resolution capable category. In an active system, the DAC's output feeds directly into the DSP crossover and amplifier chain within a single controlled enclosure, which means Cambridge Audio can engineer the entire conversion and amplification path as one voiced system rather than relying on a specification sheet number to tell the story.
Physical Connectivity and Integration
What can you physically plug into the EVO ONE?
You can connect an RCA line source, a Moving Magnet turntable via the built-in phono input, an optical TOSLINK digital source, a USB-A drive for media playback, and a television or other device through HDMI eARC, plus Bluetooth 5.1 for wireless. This is a genuinely complete input roster for a single-box system. The RCA line input accepts any analog source, the TOSLINK handles digital sources like game consoles or older players, and USB-A lets you play files directly from a thumb drive or hard disk without a network. Between these, the EVO ONE can serve as the hub for an entire living space.
Why does the built-in Moving Magnet phono stage matter?
The built-in Moving Magnet phono stage matters because it lets you connect a turntable fitted with an MM cartridge directly without needing a separate external phono preamplifier. A phono stage does two essential jobs: it applies the RIAA equalization curve that reverses the frequency shaping baked into every vinyl record during cutting, and it provides the substantial gain needed to bring a cartridge's tiny output up to line level. Having this integrated means vinyl playback is fully realized inside the system, keeping the signal path short and eliminating an extra box and interconnect. Note that it is specified for Moving Magnet cartridges, so a low-output Moving Coil cartridge would require its own step-up before the input.
How does HDMI eARC improve television sound?
HDMI eARC allows the EVO ONE to receive high-bandwidth audio directly from your television over a single cable, and it enables volume control and power linkage through the TV remote. The enhanced Audio Return Channel carries far more data than the older ARC standard, supporting higher-quality multichannel and lossless audio streams from apps and connected sources on the TV. For anyone using this as the audio system for a screen, eARC means dialogue clarity and full-range sound reproduced through that 14-driver array, with the practical daily benefit of controlling everything from one remote.
What are the output limitations to be aware of?
The EVO ONE has no external speaker terminals, no preamp output, and no subwoofer output, because its only output is the built-in 14-driver array. This is the defining trade-off of the self-contained concept. It cannot drive a separate pair of loudspeakers, feed a power amplifier, or add an external subwoofer, so if your ambitions include expanding into a larger separates system later, the EVO 150 with its speaker terminals is the more open-ended platform. The EVO ONE's design intent is a fully realized, finished system in one box, and the acoustic tuning assumes exactly the drivers it contains.
Build, Display, and Everyday Use
What is the display and how do you interact with it?
The EVO ONE features a 6.8 inch IPS color screen at 1280 x 480 resolution, providing a large, high-contrast window for album art, source selection, and playback information. IPS panel technology delivers wide viewing angles and accurate color, so the display remains legible whether you are seated directly in front or off to the side. At this size and resolution, artwork and metadata are genuinely readable across a room, which reinforces the idea of the EVO ONE as a living-room centerpiece rather than a component hidden in a rack.
How is the EVO ONE built and finished?
The EVO ONE is offered in Midnight Black and in Walnut, the latter being FSC-certified real wood rather than a printed vinyl wrap. The FSC certification indicates the timber is sourced from responsibly managed forests, and real wood veneer gives each unit natural grain variation and a tactile quality that laminate cannot replicate. At 14.5 kg (32 lbs) in a chassis measuring 129 x 675 x 290 mm, the EVO ONE is dense and substantial for its slim profile, which speaks to solid internal construction, adequate driver bracing, and the mass needed to keep a many-driver active enclosure acoustically stable at volume.
How should you interpret the specifications overall?
Read as a whole, the specifications describe a system engineered for coherence rather than headline numbers. The 700 watt total figure is meaningful only in the context of 14 actively driven, DSP-crossed drivers, where power is precisely allocated per band. The 384kHz/32-bit and DSD128 ceiling confirms a fully high-resolution capable front end. The generous input list with a Moving Magnet phono stage and HDMI eARC shows a product designed to be the single hub of a room. The absence of speaker, preamp, and subwoofer outputs is not an oversight but the honest boundary of an all-in-one concept. The EVO ONE asks you to trust Cambridge Audio's system engineering, and the internal consistency of these choices, active amplification, matched drivers, multi-direction radiation, and comprehensive digital support, suggests that trust is well placed for the listener who wants serious sound without assembling a system.