The Marshall Acton IV is a compact speaker that punches well above its size. Upgraded tweeters and waveguides spread sound further across the room, so you're not stuck in one “sweet spot”. A redesigned bass port gives low-end sounds more punch and control. You'll notice deeper bass that stays tight, even when you turn the volume up. Dynamic loudness automatically tweaks highs and lows as you adjust the volume. That means late-night listening still sounds full, while louder sessions keep their balance without becoming harsh.Good to knowAuracast support lets you link multiple compatible speakers and play music in syncIts customisable M-button lets you jump to your favourite EQ setting or playlist with one pressThe Marshall Bluetooth app lets you fine-tune and optimise audio for your spaceAnalogue inputs let you connect your vinyl record playerTactile controlsSpotify Connect compatible