Short answer: the Marshall Middleton. It ranks #33 of 126 large speakers by sound quality (rated 4.0/5) at $257.52 and is still sold new; the Sony SRS-XG300 ranks #87 (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 is the better-sounding, deeper-bass option. A waterproof stereo speaker with very deep bass for its size, a long battery, a power bank and a detachable strap. Its bass reaches about 39Hz 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). The catch: 5db dip at 1.7kHz and 6.3kHz.
Why pick the Sony SRS-XG300: A waterproof party speaker with bass forward sound, a long battery, fast charging, and a retractable handle, now discontinued. The catch: Overly expensive.
Buy the Marshall Middleton. It is rated higher for sound quality; the Sony SRS-XG300 is no longer sold new.
Looking for alternatives? See the complete Portable Bluetooth rankings.
Prices on this page were last checked November 14, 2026 at 6:17 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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Specifications Side By Side
| Marshall Middleton | Sony SRS-XG300 | |
|---|---|---|
| Price | $257.52 | $199.99 Discontinued |
| Ranked | #33 of 126 in Large Size Portable Bluetooth Speakers | #87 of 126 in Large Size Portable Bluetooth Speakers |
| Aux Input | Yes | Yes |
| Bass Extension (-10dB) | 39Hz | 54Hz |
| Battery Life | 20 hours (Manufacturer specified) | 25 hours (Manufacturer specified) |
| Maximum SPL | 99dB (measured by Alan Ross Reviews) | - |
| Party Mode | Yes (Marshall Stack) | Yes (Party Connect up to 100 speakers) |
| Power Bank | Yes (USB-C) | Yes (USB-A, 5V/1.5A) |
| Weight | 4 lbs (1.8 kg) | 6.6 lbs (3 kg) |
| App | No | No |
| Bluetooth | Yes | Yes |
| Bluetooth Codecs | SBC | SBC |
| Built-in Microphone | Yes | Yes |
| EQ | No | No |
| IP Rating | IPX7 | IPX7 |
| Power Input | USB-C | USB-C |
| Stereo | Yes | Yes |
| Omnidirectional | No | No |
| TWS | Yes | Yes |
| Bluetooth Version | 5.1 | 5.2 |
| Dimensions | 9.1” x 3.7” x 4.3” (230 x 95 x 109 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 | 50W | 16W RMS |
| Digital Aux Input | No | No |
| Strap | Yes (detachable strap) | No |
Where the Ratings Come From
- Marshall Middleton: reviews by Oluv, Alan Ross and Mateusz Cholewa.
- Sony SRS-XG300: reviews by DLX Willington, Techder Audios and GYMCADDY.
This comparison is generated from the ratings, specifications and measurements on each product’s own page, and it updates when that data changes. How we rank explains how each rating is decided.
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