The Audio Evo 300 is a streaming integrated amplifier by Cambridge Audio that delivers 300 watts x 2 channels into 8 ohms and 550 watts x 2 channels into 4 ohms. It was released in June 2026. It is a 2-channel design using a Class D output stage. A minimum impedance of 4 ohms makes it compatible with a wide range of loudspeakers. It has a built-in DAC, so you can play digital sources directly with no separate DAC unit needed. It also has a phono input, so a turntable can connect straight to it. The Cambridge Audio Evo 300 has an MSRP of $3,999.
There are 10 Cambridge Audio amplifiers in our database. Below you can see the main specs of these amps.
Cambridge Audio Integrated Amplifier Series
Performance Specs
One of the most important factors when deciding on an integrated amplifier is its power ratings and compatibility with your speaker's impedance requirements. The Cambridge Audio Evo 300 is rated at 300 watts RMS into 8-ohms.
Here are the main highlights of its performance specs:
- 300 watts into 8-ohms (20 Hz-20 kHz)
- 550 watts into 4-ohms
- 4-ohms Min Impedance (allows compatibility with a wide range of loudspeakers)
How loud will 300 watts actually play in your room? →
Wiring more than one pair of speakers to it? Check the load first →
Which speakers suit the Cambridge Audio Evo 300?
300 W into 8 ohms, 550 W into 4, rated down to 4 ohms.
We rank every passive speaker we cover against it on power, impedance safety and current
delivery.
Need more power?
Cambridge Audio Evo 300 is rated at 300 watts into 8 ohms, which puts it in our Over 180 watts band. That is the top band we cover, so there is no step up from here - if it is not enough, the answer is more sensitive speakers or a smaller room, not more watts.
When pairing the Cambridge Audio Evo 300 with a passive Bookshelf (Stand mount) or Passive Floor Standing (Tower) speaker, you have to check if their Max Power Range is below the max wattage of the amp for the given impedance levels.
Operating your amp outside of this max range may damage the speakers.
Inputs and Outputs
Besides the performance specs of the Cambridge Audio Evo 300, the next important feature set that you have to evaluate is the input and output selections that it offers.
Inputs
- Phono Input
- 1 Optical Digital Input
- 1 Coaxial Digital Input
- USB Input
Outputs
- Speaker Outputs
- Preamp Outputs
- 1/4 Headphone Output
- Subwoofer Output (Single)
Bluetooth Connectivity
Cambridge Audio Evo 300 features built-in Bluetooth 5.4 for wireless music streaming from your Bluetooth-enabled devices such as Apple iPod/iPhone/iPad, Android smartphone/tablet, Windows PC, Mac computers/laptops.
Among the amps in the same price range, these are the 5 amps that have Bluetooth Connectivity:
Phono Input
Cambridge Audio Evo 300 features two Phono Inputs which are compatible with
MM (Moving Magnet) type of phono cartridges, you can connect your turntable with MM cartridges directly to this amp without the need for a phono preamp. If you are using an MC cartridge on your turntable, you need to use a phono preamp that has MC phono stage such as the
Cambridge Duo or the
iFi ZEN Phono.
Balanced connections
Cambridge Audio Evo 300 has a balanced XLR input. A balanced cable carries the signal twice, on two conductors of opposite polarity. Interference picked up along the way lands on both equally and cancels when the two are recombined at the far end, so the longer the cable run and the noisier the surroundings, the more the connection is worth. Whether a balanced connection also yields more power depends on how the amplifier is built inside - some are balanced end to end, others convert to single-ended internally and deliver the same power either way, so it is worth reading the maker's own wording rather than assuming.
DAC and Digital Music
The Cambridge Audio Evo 300's built-in DAC allows the connection of digital sources directly, eliminating the need for an external DAC.
Cambridge Audio Evo 300 Pros and Cons
Drawn from the published figures on this page, not from listening.
- ✓Power nearly doubles into a harder load, 300 watts into 8 ohms rising to 550 into 4, which points to a power supply with real current in reserve.
- ✓300 watts per channel into 8 ohms is more than most rooms and most speakers will ever ask for.
- ✓Class D output stage, so it runs cool and wastes little power as heat - which is how it fits in a small case.
- ✓Built-in DAC handling 32-bit / 768 and DSD, so a TV, computer or streamer can connect digitally with nothing in between.
- ✓Digital inputs cover 1 optical, 1 coaxial and USB.
- ✓Phono stage built in (MM), so a turntable needs no separate preamplifier.
- ✓Streams over the network without a separate streamer: Spotify Connect and Tidal; AirPlay 2, Chromecast built-in and Roon.
- ✓Bluetooth (version 5.4) for playing straight from a phone.
- ✓Pre-outs (Yes) leave room to add a power amplifier or an active subwoofer later.
- ✓Dedicated subwoofer output (Single).
- ✓Balanced XLR inputs, worth having on a long cable run.
- ✓Headphone output (1/4).
- ✓Detachable mains lead (IEC 3-prong).
- ✗The phono stage is moving-magnet only; a moving-coil cartridge would need a step-up or an external stage.
Cambridge Audio Evo 300 External Dimensions and Weight
Cambridge Audio Evo 300 has external dimensions of (H x W x D) 3-9/16 x 15-5/16 x 14-13/16 inch (90.5 x 388.9 x 376.2 mm ). The unit weighs
7.2 kg (15.9 lbs).
Base Surface Area
Base surface area of an integrated amplifier may become an important decision factor when the space in your room or desk is limited.
The base area of the Cambridge Audio Evo 300 is approximately 1463.0cm2 / 226.8inch2.
- Width: 388.9mm (15-5/16")
- Height: 90.5mm (3-9/16")
- Depth: 376.2mm (14-13/16")
- Weight: 7.2 kg (15.9 lbs)
- Base Surface Area: ~1463.0cm2 / 226.8inch2
- Volume: ~13.2 liter / 3.5 gallon
Warranty
2 Years of parts warranty and 2 Years of labor warranty is generally provided for the Cambridge Audio Evo 300 by the manufacturer.
| General |
| Brand |
Cambridge Audio |
| Full Model Name |
Cambridge Audio Evo 300 |
| Release Date |
June 2026 |
| Amplifier Type |
Integrated Amplifier |
| Number of Channels |
2 |
| Amp Class |
Class D |
| Amplifier Technology |
Solid State |
| Performance |
| Watts RMS per Channel into 8-ohms |
300 watts |
| Watts RMS per Channel into 6-ohms |
N/A |
| Watts RMS per Channel into 4-ohms |
550 watts |
| Frequency Bandwidth |
20 Hz-20 kHz |
| THD |
|
| Minimum Impedance |
4 |
| Signal to Noise Ratio |
N/A |
| Digital Music |
| Built-in DAC |
Yes |
| Bluetooth |
Yes |
| WiFi |
802.11ac |
| Ecosystem |
| Apple AirPlay |
Yes |
| Apple AirPlay2 |
Yes |
| DTS Play-Fi |
No |
| Chromecast built-in |
Yes |
| Roon |
Ready |
| HEOS |
No |
| BluOS |
No |
| CONNECTIONS |
| Phono Input |
Yes |
| Optical Digital Inputs |
1 |
| Coaxial Digital Inputs |
1 |
| USB Input |
Yes |
| Preamp Outputs |
Yes |
| Pre-out / Main-in Loop |
No |
| Headphone Output |
1/4 |
| Removable Power Cord |
IEC 3-prong |
| PHYSICAL SPECS |
| Height |
90.5mm (3-9/16") |
| Width |
388.9mm (15-5/16") |
| Depth |
376.2mm (14-13/16") |
| Weight |
7.2 kg (15.9 lbs) |
| OTHER |
| Parts Warranty |
2 Years |
| Labor Warranty |
2 Years |