Short answer: the Marshall Middleton II. It ranks #31 of 105 large speakers by sound quality (rated 4.1/5) at $329.99 and is still sold new; the Sony SRS-XG300 ranks #77 (rated 3.1/5) and is discontinued, so it is only an option used. The Sony SRS-XG300’s replacement, the Sony ULT Field 5, is rated 3.5/5 at $348.
The Marshall Middleton II is the better-sounding, deeper-bass choice. Very deep bass for the size/weight. Its bass reaches about 38Hz before falling 10dB, against 54Hz for the Sony SRS-XG300. At 4 lbs (1.8 kg) it weighs much less than the Sony SRS-XG300 at 6.6 lbs (3 kg). It has an adjustable EQ, which the Sony SRS-XG300 lacks. Watch for: Bass boosted which drowns out the midrange.
Why pick the Sony SRS-XG300: IP67 dust/waterproof rating. The catch: Overly expensive.
Buy the Marshall Middleton II. It is rated higher for sound quality; the Sony SRS-XG300 is no longer sold new.
Want more options? Browse the full Portable Bluetooth rankings.
Specifications Side By Side
| Marshall Middleton II | Sony SRS-XG300 | |
|---|---|---|
| Price | $329.99 | $219.00 Discontinued |
| Ranked | #31 of 105 in Large Size Portable Bluetooth Speakers | #77 of 105 in Large Size Portable Bluetooth Speakers |
| App | Yes | No |
| Aux Input | Yes | Yes |
| Bass Extension (-10dB) | 38Hz | 54Hz |
| Battery Life | 30 hours (Manufacturer specified) | 25 hours (Manufacturer specified) |
| Built-in Microphone | Yes | Yes |
| EQ | Yes (5 band) | No |
| IP Rating | IP67 | IPX7 |
| Party Mode | Yes (Marshall Stack) | Yes (Party Connect up to 100 speakers) |
| Power Bank | Yes (USB-C) | Yes (USB-A, 5V/1.5A) |
| Power Input | USB-C | USB-C |
| Weight | 4 lbs (1.8 kg) | 6.6 lbs (3 kg) |
| Bluetooth | Yes | Yes |
| Bluetooth Codecs | SBC | SBC |
| Stereo | Yes | Yes |
| Omnidirectional | No | No |
| TWS | Yes | Yes |
| Bluetooth Version | 5.3 | 5.2 |
| Dimensions | 9.1” x 3.9” x 4.3” (230 x 98 x 110 mm) | 12.5” x 5.4” x 5.4” (318 x 138 x 136 mm) |
| Drivers | 2x 75mm woofers, 2x 0.625” tweeters + 2x passive radiators | 2x X-Balanced woofers, 2x 20mm tweeters |
| Frequency Response | 50Hz - 20kHz (Manufacturer specified) | - |
| Amplifier Power | 80W | 16W RMS |
| Digital Aux Input | No | No |
| Strap | Yes (detachable strap) | No |
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Prices on this page were last checked October 12, 2026 at 4:13 PM 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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The Two Speakers In Full
Marshall Middleton II: $329.99 Amazon $329.99 eBay
Older model: the Marshall Middleton (ranked lower, rated 4/5). See every Marshall Portable Speakers generation.
Same family: the Marshall Willen II (smaller model, rated 4/5), the Marshall Emberton III (smaller model, rated 2.7/5), the Marshall Stockwell III (larger model, ranked lower, rated 3/5) and the Marshall Kilburn III (larger model, ranked lower, rated 3.8/5).
Pros: Very deep bass for the size/weight. Measured bass extension of 38Hz (-10dB).
Cons: Bass boosted which drowns out the midrange. Dip around 200Hz, peak at 1kHz, dipped at 1.6kHz. Strange frequency response through the mids.
Full Marshall Middleton II review and specifications →
| Released | Jul 2025 (1 year ago) |
|---|---|
| Amplifier Power | 80W |
| App | Yes |
| Aux Input | Yes |
| Bass Extension (-10dB) | 38Hz |
| Battery Life | 30 hours (Manufacturer specified) |
| Bluetooth | Yes |
| Bluetooth Codecs | SBC |
| Bluetooth Version | 5.3 |
| Built-in Microphone | Yes |
| Digital Aux Input | No |
| Dimensions | 9.1” x 3.9” x 4.3” (230 x 98 x 110 mm) |
| Drivers | 2x 75mm woofers, 2x 0.625” tweeters + 2x passive radiators |
| EQ | Yes (5 band) |
| Frequency Response | 50Hz - 20kHz (Manufacturer specified) |
| IP Rating | IP67 |
| Omnidirectional | No |
| Party Mode | Yes (Marshall Stack) |
| Power Bank | Yes (USB-C) |
| Power Input | USB-C |
| Stereo | Yes |
| Strap | Yes (detachable strap) |
| TWS | Yes |
| Weight | 4 lbs (1.8 kg) |
- Links
- Reviews, Comparisons and Sound Samples
- Oluv Patreon: Marshall Middleton II - better with EQ? More from Oluv’Sone →
- Oluv Patreon: Marshall Middleton II - first impressions
- Dominik Reviews: Marshall Middleton II vs Middleton I - Huge Differences? - Sound Test More from Dominik Reviews →
- Mateusz Cholewa: Marshall Kilburn 3 vs Marshall Middleton 2 Opinion in Subtitles More from Mateusz Cholewa →
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Sony SRS-XG300: $219.00 Discontinued Amazon $219.00 eBay
Newer model: the Sony ULT Field 5, ranked higher, rated 3.5/5, released Apr 2025. It adds app control, adjustable EQ, AAC and LDAC.
Older model: the Sony SRS-XB43 (ranked higher, rated 3.5/5). See every Sony XB and ULT generation.
Pros: IP67 dust/waterproof rating. Bluetooth 5.2 with multipoint pairing, LDAC codec support. Retractable carry handle for easy portability. Big boomy bass-forward sound, excellent for parties. Fast-charging: 10 minutes gives 70 minutes playback. Stamina mode optimizes battery. Measured bass extension of 54Hz (-10dB).
Cons: Overly expensive. Bass not as deep as competitors. Upper mids peak. Hollow sounding. Rolled off treble. Not much clarity. Does not float. Speaker will not remain at max volume and will turn itself down automatically. Discontinued.
Full Sony SRS-XG300 review and specifications →
| Released | Jul 2022 (4 years ago) |
|---|---|
| Amplifier Power | 16W RMS |
| App | No |
| Aux Input | Yes |
| Bass Extension (-10dB) | 54Hz |
| Battery Life | 25 hours (Manufacturer specified) |
| Bluetooth | Yes |
| Bluetooth Codecs | SBC |
| Bluetooth Version | 5.2 |
| Built-in Microphone | Yes |
| Digital Aux Input | No |
| Dimensions | 12.5” x 5.4” x 5.4” (318 x 138 x 136 mm) |
| Drivers | 2x X-Balanced woofers, 2x 20mm tweeters |
| EQ | No |
| IP Rating | IPX7 |
| Omnidirectional | No |
| Party Mode | Yes (Party Connect up to 100 speakers) |
| Power Bank | Yes (USB-A, 5V/1.5A) |
| Power Input | USB-C |
| Stereo | Yes |
| Strap | No |
| TWS | Yes |
| Weight | 6.6 lbs (3 kg) |
- Links
- Reviews, Comparisons and Sound Samples
- DLX Willington: Who Sounds The Best Of Sony XG300, XB43 & JBL XTREME3 With Sound Sample BLIND CHALLENGE Reveal. More from DLXWillington →
- DLX Willington: FINALLY! Sony SRS XG300, SRS XE300, & SRS XE200 Are Here. Binaural Sound Samples & First Impressions
- Techder Audios: SONY XG300 VS SOUNDCORE MOTION BOOM More from techderaudios →
- GYMCADDY: JBL Xtreme 3 Vs Sony XG300 - Its Not Even Close More from GYMCADDY →
- GYMCADDY: Sony XG300 Review & Compared To Sony XB43
- New Stuff TV: Sony SRS-XG300 Vs JBL Xtreme 3 More from NewStuffTV1 →
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