Cambridge Audio has added RoomMagic, a room correction feature, to both its L/R M and L/R X active stereo speakers that promises better sound without the need for any additional equipment.

The feature arrives as a free software update through Cambridge Audio’s StreamMagic platform, allowing owners to adjust their speakers’ sound to suit their room using nothing more than a smartphone or tablet. It’s a particularly welcome addition for the L/R M, giving the speakers an extra trick.

RoomMagic tackles a familiar problem with home audio: even a well-tuned pair of speakers can sound quite different once they’re placed in someone’s living room. Everything from the size of the space to nearby walls and furniture can affect how bass behaves, sometimes leaving music sounding heavier or less controlled than intended.

Rather than requiring a separate measurement microphone, Cambridge Audio uses the one already built into your phone or tablet. The setup takes place entirely within the StreamMagic app and involves two measurements, starting with a microphone calibration near the speaker before taking another reading from your usual listening position. The software then creates a correction profile based on how the speakers are expected to perform under ideal conditions.

Interestingly, RoomMagic concentrates on bass and lower frequencies rather than trying to adjust the entire sound. That’s where room acoustics tend to cause the most noticeable problems, and Cambridge Audio says leaving the midrange and treble untouched helps preserve the speakers’ original character. In other words, the aim isn’t to give the L/R M a completely different sound, but to make sure the room isn’t getting in the way of what they’re already capable of.

There’s some flexibility for listeners who prefer a different balance, too. RoomMagic offers three target curves, alongside a slider for adjusting how strongly the correction is applied. That should come in handy if you want a little more bass rather than having the software make every decision for you.

The update also makes room correction considerably more approachable than systems that rely on dedicated microphones or additional hardware. It’s all handled through the existing StreamMagic app, with no separate subscription, trial period or extra purchase required.

RoomMagic begins rolling out to the Cambridge Audio L/R M and L/R X from 11 November 2026, arriving as a free over-the-air update for both models. Cambridge Audio says the feature will continue to improve through future StreamMagic updates.