The MXW70 is a stereo power amplifier by Cambridge Audio that delivers 70 watts x 2. It was released in June 2025. It is a 2-channel design using a Class D output stage. Bridged to mono it delivers 250 watts, which is the usual way to use a pair of these on a demanding speaker. Speakers connect via binding posts. A minimum impedance of 4 ohms makes it compatible with a wide range of loudspeakers. The Cambridge Audio MXW70 has an MSRP of $599.
There are 2 Cambridge Audio amplifiers in our database. Below you can see the main specs of these amps.
Cambridge Audio Power 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 MXW70 is rated at 70 watts RMS into 8-ohms. Cambridge Audio provides this wattage at a THD (Total Harmonic Distortion) of 0.015% which is an important indicator of distortion at the given values (lower THD is better).
Here are the main highlights of its performance specs:
- 70 watts into 8-ohms (20 Hz-20 kHz) at 0.015%
- 125 watts into 4-ohms
- 4-ohms Min Impedance (allows compatibility with a wide range of loudspeakers)
How loud will 70 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 MXW70?
70 W into 8 ohms, 125 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 MXW70 is rated at 70 watts into 8 ohms, which puts it in our 61 to 90 watts band. The next band up is 91 to 120 watts, which is worth about 1.5dB more output. That is a real difference in headroom on peaks, and a modest one in how loud the system plays - power and loudness are not the same thing.
Before buying watts, check what your speakers actually need: the amp and speaker matcher works it out from their sensitivity, impedance and your room. Plenty of systems are better served by the Up to 60 watts band and better speakers.
When pairing the Cambridge Audio MXW70 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 MXW70, the next important feature set that you have to evaluate is the input and output selections that it offers.
Cambridge Audio MXW70 has total of 2 Analog inputs .
Inputs
- Total Number of Analog Inputs: 2
Outputs
Cambridge Audio MXW70 Pros and Cons
Drawn from the published figures on this page, not from listening.
- ✓Power nearly doubles into a harder load, 70 watts into 8 ohms rising to 125 into 4, which points to a power supply with real current in reserve.
- ✓Class D output stage, so it runs cool and wastes little power as heat - which is how it fits in a small case.
- ✓Can be bridged to mono, so a pair can be used as two larger monoblocks.
- ✓Detachable mains lead (C7 non-polarized).
- ✗A power amplifier has no volume control and no input selection - it needs a preamplifier, or a source with a variable output, in front of it.
Cambridge Audio MXW70 External Dimensions and Weight
Cambridge Audio MXW70 has external dimensions of (H x W x D) . The unit weighs
1.65 kg (3.6 lbs).
- Width: mm (8-1/2")
- Height: mm (2-1/4")
- Depth: mm (8-3/4")
- Weight: 1.65 kg (3.6 lbs)
- Base Surface Area: ~cm2 / 0.0inch2
- Volume: ~0.0 liter / 0.0 gallon
Warranty
2 Years of parts warranty and 2 Years of labor warranty is generally provided for the Cambridge Audio MXW70 by the manufacturer.
| General |
| Brand |
Cambridge Audio |
| Full Model Name |
Cambridge Audio MXW70 |
| Release Date |
June 2025 |
| Amplifier Type |
Power Amplifier |
| Number of Channels |
2 |
| Amp Class |
Class D |
| Amplifier Technology |
Solid State |
| Performance |
| Watts RMS per Channel into 8-ohms |
70 watts |
| Watts RMS per Channel into 6-ohms |
N/A |
| Watts RMS per Channel into 4-ohms |
125 watts |
| Bridged Power per Channel |
250 watts |
| Frequency Bandwidth |
20 Hz-20 kHz |
| THD |
0.015% |
| Minimum Impedance |
4 |
| Signal to Noise Ratio |
N/A |
| CONNECTIONS |
| Total Analog Inputs |
2 |
| Removable Power Cord |
C7 non-polarized |
| Speaker Connectors |
Binding posts |
| Speaker Outputs |
2 |
| Level Controls |
No |
| PHYSICAL SPECS |
| Height |
mm (2-1/4") |
| Width |
mm (8-1/2") |
| Depth |
mm (8-3/4") |
| Weight |
1.65 kg (3.6 lbs) |
| OTHER |
| Parts Warranty |
2 Years |
| THX Certification |
No |
| Labor Warranty |
2 Years |
How much power does the Cambridge Audio MXW70 have?
The Cambridge Audio MXW70 delivers 70 watts x 2. Its output almost doubles into 4 ohms, which points to a strong power supply that can hold its composure with demanding, low-impedance speakers.
Does the Cambridge Audio MXW70 use vacuum tubes?
No. The Cambridge Audio MXW70 is a solid-state amplifier - there are no vacuum tubes in it.
What amplifier class is the Cambridge Audio MXW70?
The Cambridge Audio MXW70 uses a Class D amplifier design. Class D is a modern switching design that runs cool and wastes very little energy as heat, which is how makers fit high power into a compact, light chassis.
How much does the Cambridge Audio MXW70 cost?
The Cambridge Audio MXW70 has a manufacturer's list price (MSRP) of $599.
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