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# Marshall Acton IV
- URL: https://www.unknowndivide.com/marshall-acton-iv/
- Published: 2026-07-11T01:28:38.000Z
- Updated: 2026-07-11T01:28:38.000Z
- Author: unknowndivide staff
- Tags: gear

The Acton has always been the entry point to [Marshall's](https://en.wikipedia.org/wiki/Marshall%5FAmplification?ref=unknowndivide.com) home speaker line: the smallest cabinet, the lowest price, the same brass-and-tolex look scaled down to a bookshelf. The new [Acton IV](https://www.marshall.com/us/en/product/acton-iv?pid=1009789&ref=unknowndivide.com), $329.99 in black or cream, keeps that job but fixes the two things that made previous Actons easy to outgrow. It finally has a proper input for a turntable, and it's no longer a dead end if you want sound in more than one room.

## What's new in the Acton IV

Three changes matter. First, a redesigned bass port that Marshall says delivers cleaner, tighter low end at higher volumes and lets the speaker sit flush against a wall, which is where a speaker this size actually ends up living. Second, improved tweeters with waveguides for a wider soundstage from a cabinet only 10.6 inches wide. Third, and biggest, built-in [Auracast](https://www.bluetooth.com/auracast/?ref=unknowndivide.com), the [Bluetooth](https://en.wikipedia.org/wiki/Bluetooth?ref=unknowndivide.com) broadcast standard that lets multiple speakers play in sync. Pair it with [Heddon](https://www.marshall.com/us/en/product/heddon?ref=unknowndivide.com), Marshall's music streaming hub, and the Acton IV becomes one node of a whole-home system, no proprietary mesh required. That's Marshall building its answer to [Sonos](https://en.wikipedia.org/wiki/Sonos?ref=unknowndivide.com) on an open standard instead of a walled garden, a bet worth watching beyond this one speaker.

## The turntable detail

The addition our readers will care about most: the Acton IV gains an RCA input alongside the 3.5mm AUX. Previous Actons made vinyl setups awkward; this one takes a phono preamp's output directly, which turns a $330 speaker into a legitimately compact record-player companion. One honest caveat from the [spec sheet](https://www.marshall.com/us/en/product/acton-iv?pid=1009789&ref=unknowndivide.com): there's no built-in phono stage, so your [turntable](https://en.wikipedia.org/wiki/Phonograph?ref=unknowndivide.com) needs its own preamp or an external one. Most current entry decks have one built in.

## Marshall Acton IV specs

- **Drivers:** one 4-inch woofer, two 0.75-inch tweeters with waveguides
- **Amplification:** 60W Class D for the woofer, two 25W Class D for the tweeters
- **Frequency range:** 37 Hz to 38 kHz, 95 dB max SPL at 1 meter
- **Wireless:** Bluetooth 5.3 with multipoint, Auracast broadcast receiving
- **Codecs:** SBC, AAC, [LDAC](https://en.wikipedia.org/wiki/LDAC%5F%28codec%29?ref=unknowndivide.com), and LC3
- **Inputs:** RCA and 3.5mm AUX
- **Controls:** brass top panel with bass, treble, volume knobs, media jog, source button, and a customizable M-button with [Spotify](https://en.wikipedia.org/wiki/Spotify?ref=unknowndivide.com) Tap
- **App:** Marshall app with EQ and room calibration
- **Size and weight:** 260 x 171 x 150mm, 2.65 kg (5.84 lb)
- **Colorways:** black, cream

LDAC support is quietly notable at this price; most lifestyle speakers stop at AAC, and hi-res-capable Bluetooth from an Android phone is a real bump for streaming quality.

## Built to be repaired

The part of the spec sheet most brands bury: the Acton IV is officially repairable. Knobs, feet, and the grille are sold as [spare parts](https://www.marshall.com/us/en/support/speakers?ref=unknowndivide.com) on Marshall's site; authorized repair is offered after warranty; the MDF cabinet is [FSC](https://en.wikipedia.org/wiki/Forest%5FStewardship%5FCouncil?ref=unknowndivide.com)\-certified; and 13 percent of the speaker's weight is recycled material, including recycled neodymium in the magnets. Marshall also routes 1 percent of member purchases on marshall.com to grassroots music venues. A lifestyle speaker you can fix instead of replace is still rare enough to count as a feature.

## Marshall Acton IV vs Acton III

If you own an [Acton III](https://www.marshall.com/us/en/speakers?ref=unknowndivide.com), the IV's case rests on the RCA input, Auracast multi-room, LDAC/LC3 codecs, and the reworked bass port. The look is nearly identical, which is the point; Marshall hasn't meaningfully changed the design language since the line launched, and it doesn't need to. If none of those four things matter to you, a discounted III does the same job.

At $329.99, the [Acton IV](https://www.marshall.com/us/en/product/acton-iv?pid=1009789&ref=unknowndivide.com) fixes the small Marshall's two historical weaknesses in one revision: it now belongs in a vinyl setup, and it now has a future in a multi-room home. The look you already know is doing what it has always done. The changes are all underneath, which is exactly where they belong.