Short answer: the Marshall Woburn III. It ranks #2 of 28 powered desktop speakers by sound quality, rated 4.1/5, at $599.99. The Marshall Stanmore III ranks #6, rated 3.8/5, at $388.04, $211.95 cheaper, which does not close the gap in sound quality.
The Woburn III is the larger speaker in every spec that matters. It steps up to a 6 inch woofer, 2x 2 inch midranges, and 2x 0.75 inch dome tweeters, driven by 150W total output against the Stanmore III’s 80W. Its frequency response reaches down to about 35Hz versus the Stanmore III’s 45Hz spec, and it’s rated for stereo playback outright rather than the Stanmore III’s partial stereo, which relies on a single woofer. Its cons note bass is still limited by that ~45Hz extension figure in practice, so don’t expect true sub-bass from either model.
The Stanmore III is the more compact option for a smaller room. It uses a 5 inch woofer, a second 5 inch midrange, and 2x 0.75 inch dome tweeters at 80W, and its cons flag the same kind of bass ceiling relative to its size, limited by its 45Hz to 20kHz spec.
Everything else matches: both are AC-powered with no battery, include Bluetooth plus RCA and aux inputs, offer bass and treble EQ, and use a ported cabinet.
Buy the Woburn III if you want true stereo, deeper bass, and more headroom, and have the space and budget for a noticeably bigger speaker.
Buy the Stanmore III if you want the smaller footprint and lower price and can live with partial stereo from its single woofer.
Still deciding? The full Powered Home rankings cover every ranked option.
A mid size home speaker with classic Marshall amp styling, Bluetooth, and RCA and aux inputs for a turntable or other source.
A big, loud stereo home speaker with classic Marshall styling and an HDMI ARC input that makes it a capable TV speaker too.
Prices on this page were last checked October 23, 2026 at 8:27 AM UTC. Product prices and availability are accurate as of that date/time and are subject to change; the price and availability shown on Amazon at the time of purchase will apply to the purchase of this product.
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Specifications Side By Side
| Marshall Stanmore III | Marshall Woburn III | |
|---|---|---|
| Price | $388.04 each | $599.99 each |
| Ranked | #6 of 28 in Medium Size Powered Desktop Speakers | #2 of 28 in Medium Size Powered Desktop Speakers |
| App | Yes | Yes |
| Aux Input | Yes | Yes |
| Battery Life | No Battery | No Battery |
| Bluetooth Codecs | SBC | SBC |
| Bluetooth Version | 5.2 | 5.2 |
| Dimensions | 13.8” x 8” x 7.4” (350 x 203 x 188 mm) | 15.7” x 12.5” x 8” (400 x 317 x 203 mm) |
| EQ | Yes (Bass/Treble) | Yes (Bass/Treble) |
| Frequency Response | 45Hz - 20kHz (Manufacturer specified) | 35Hz - 20kHz (Manufacturer specified) |
| IP Rating | None | None |
| Inputs | Bluetooth, RCA, Aux | Bluetooth, HDMI ARC, RCA, Aux |
| Drivers | 5” (midrange/woofer), 1x 5” midrange, 2x 0.75” Dome tweeters | 6” woofer, 2x 2” midranges, 2x 0.75” Dome tweeters |
| Party Mode | No | No |
| Power Bank | No | - |
| Power Input | AC Power cord | AC Power cord |
| Stereo | Partially (1 woofer) | Yes |
| TWS | No | No |
| Weight | 9.7 lbs (4.4 kg) | 16.4 lbs (7.44 kg) |
| Wi-Fi | No | No |
| Woofer Cabinet | ported | ported |
| Amplifier Power | 80W (Woofer: 50W, Tweeters: 2x15W) | 150W (Woofer: 90W, Midrange: 2x15W, Tweeters: 2x15W) |
| XLR Input | No | No |
| RCA Input | Yes | Yes |
| TRS Input | No | No |
| Optical Input | No | No |
| Coaxial Input | No | No |
| USB Input | No | No |
| HDMI Input | No | Yes |
| AES Input | No | No |
| Bluetooth | Yes | Yes |
| Bass Extension (-10dB) | - | ~45Hz |
| Maximum SPL | - | 100.5dB @ 1m |
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