Short answer: the JBL Xtreme 4 for features, the Dockin D Fine+ 2 for deep bass at a lower price. The Xtreme 4 adds a removable battery, slightly deeper bass than the Xtreme 3 and a recommended EQ, but is high priced with bass boost and an upper-bass-to-midrange dip no EQ can fix. The D Fine+ 2 digs quite deep for the category, though it gives up midrange clarity to other top ranked speakers and has a dip at 1.8kHz.
In the JBL Xtreme 4’s favor: it has a removable battery, slightly deeper bass than the Xtreme 3, and there’s a recommended EQ that improves the sound further. Working against it: it’s high priced, has some bass boost, a dip in the upper bass to midrange that sounds strange and can’t be EQ’d out, and some upper mids and treble boost at high volumes.
The pitch for the Dockin D Fine+ 2: quite deep bass for the category. On the downside: it doesn’t have as much midrange clarity as other top ranked speakers and has a dip at 1.8kHz.
Buy the JBL Xtreme 4 if you want one new; the Dockin D Fine+ 2 is discontinued, so only look for it used.
Battery life favors the JBL Xtreme 4: rated for 24 hours against 16 hours for the Dockin D Fine+ 2.
Want more options? Browse the full Portable Bluetooth rankings.
Specifications Side By Side
| JBL Xtreme 4 | Dockin D Fine+ 2 | |
|---|---|---|
| Price | $309.95 | $150 Discontinued |
| Ranked | #40 of 83 in Large Size Portable Bluetooth Speakers | #29 of 83 in Large Size Portable Bluetooth Speakers |
| App | Yes | No |
| Aux Input | No | Yes |
| Battery Life | 24 hours (Manufacturer specified) | 16 hours (Manufacturer specified) |
| EQ | Yes (5 band) | Yes (Bass boost 3 steps) |
| IP Rating | IP67 | IPX5 |
| Bluetooth Latency | 220ms | - |
| Maximum SPL | 106dB (measured by Alan Ross Reviews) | 96dB (measured by Alan Ross Reviews) |
| Party Mode | Yes (Auracast) | No |
| Power Bank | Yes (USB-C) | Yes |
| Power Input | USB-C | USB-C |
| Removable Battery | Yes | - |
| TWS | Yes | Yes |
| Weight | 4.6 lbs (2.1 kg) | 5.1 lbs (2.3 kg) |
| Bluetooth Codecs | SBC | SBC |
| Built-in Microphone | Yes | Yes |
| Stereo | Yes | Yes |
| Omnidirectional | No | No |
| Bluetooth Version | 5.3 | 5.0 |
| Dimensions | 11.7” x 5.9” x 5.6” (297 x 149 x 141 mm) | 12.2” x 4.1” x 4.1” (310 x 103 x 103 mm) |
| Drivers | 2x 70mm woofers, 2x 19mm tweeters + 2x passive radiators | 2x tweeters, 2x midrange/bass drivers + 2x passive radiators |
| Frequency Response | 44Hz - 20kHz (Manufacturer specified) | - |
| Amplifier Power | 100W | 50W |
| Digital Aux Input | No | No |
| Strap | Yes (detachable shoulder strap) | - |
| Bass Extension (-10dB) | - | 45Hz |
Related Speaker Comparisons
More top alternatives to Dockin D Fine+ 2:
- JBL Xtreme 5 vs Dockin D Fine+ 2
- Dockin D Fine+ 2 vs Soundcore Motion Boom
- Bose SoundLink Max vs Dockin D Fine+ 2
- Dockin D Fine+ 2 vs Sony ULT Field 5
- JBL Xtreme 4 vs Soundcore Motion X600
Prices on this page were last checked September 26, 2026 at 11:14 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
JBL Xtreme 4: $309.95 Amazon B&H Photo Video eBay
Newer model: the JBL Xtreme 5, ranked higher, rated 4.6/5.
Pros: A rugged 2.1kg portable with IP67 protection, a replaceable battery, USB-C power-bank output, Auracast, stereo pairing and a useful 5-band app EQ. Independent reviews find the midrange detailed and the sound clear, punchy and refined for outdoor use; it also reaches a strong 106dB maximum level and has excellent real-world battery life.
Cons: It cannot produce the deep rumble of a larger speaker, and bass compression increases near maximum volume. The front-facing layout has only modest off-axis consistency, Bluetooth latency is high for video, and the default balance benefits from EQ adjustment. There is no aux input, so wired sources are not supported. Out of the box it leans bass-boosted, with a dip between the upper bass and midrange that EQ cannot fix, and it pushes the upper mids and treble at high volume. It is also expensive.
Full JBL Xtreme 4 review and specifications →
| Amplifier Power | 100W |
|---|---|
| App | Yes |
| Aux Input | No |
| Battery Life | 24 hours (Manufacturer specified) |
| Bluetooth Codecs | SBC |
| Bluetooth Latency | 220ms |
| Bluetooth Version | 5.3 |
| Built-in Microphone | Yes |
| Digital Aux Input | No |
| Dimensions | 11.7” x 5.9” x 5.6” (297 x 149 x 141 mm) |
| Drivers | 2x 70mm woofers, 2x 19mm tweeters + 2x passive radiators |
| EQ | Yes (5 band) |
| Frequency Response | 44Hz - 20kHz (Manufacturer specified) |
| IP Rating | IP67 |
| Maximum SPL | 106dB (measured by Alan Ross Reviews) |
| Omnidirectional | No |
| Party Mode | Yes (Auracast) |
| Power Bank | Yes (USB-C) |
| Power Input | USB-C |
| Removable Battery | Yes |
| Stereo | Yes |
| Strap | Yes (detachable shoulder strap) |
| TWS | Yes |
| Weight | 4.6 lbs (2.1 kg) |
- Links
- Reviews, Comparisons and Sound Samples
- JOY‘s 🎧3D🔈Audio-Show: JBL Charge 6, Xtreme 4 & Earfun UBoom X - taking sound to the top More from Oluv’Sone →
- JOY‘s 🎧3D🔈Audio-Show: JBL Charge 6 vs JBL Xtreme 4 - outdoor test
- JOY‘s 🎧3D🔈Audio-Show: JBL Charge 6 vs JBL Xtreme 4 - basstest (bigger=better?)
- Alan Ross Reviews: JBL Xtreme 4 vs Flip 7 vs Charge 6 – The ULTIMATE JBL Speaker Showdown! More from alanrossreviews →
- Oluv Patreon: SoundCore Boom 3i - first impressions & EQs
- Mateusz Cholewa: TRIBIT StormBox LAVA Deep BASS 🆚 JBL XTREME 4 More from Mateusz Cholewa →
- Mateusz Cholewa: Marshall Middleton👌🎶 🆚 JBL Xtreme 4 🎶📢
- Oluv Patreon: JBL Xtreme 4 - sound analysis
- Oluv Patreon: JBL Xtreme 4 - unboxing & first impressions
- Oluv Patreon: Harman Kardon go+play 3 vs JBL Xtreme 4 - first impressions
- Dominik Reviews: JBL Xtreme 4 vs JBL Xtreme 3 Sound Test 😍 Best upgrade in the history? 😂 More from Dominik Reviews →
- M1MTechChannel: Welche JBL Partybox ist die BESTE ? Alle Partyboxen im Vergleich | 2026 More from M1MTechChannel →
- Mateusz Cholewa: BOGASING S8 Pro Max 100W vs JBL Xtreme 4 Audio Test
- Mateusz Cholewa: LOEWE We HEAR Pro Super Stereo vs JBL Xtreme 4
- Head-to-Head Comparisons
Dockin D Fine+ 2: $150 Discontinued eBay
Older model: the Dockin D Fine+ (ranked lower, rated 3.9/5).
Pros: Dockin D Fine+ 2 uses 2x tweeters, 2x midrange/bass drivers + 2x passive radiators. Its 2.3 kg, claimed 16 hours (Manufacturer specified) battery life, IPX5 protection, aux input, up to 96dB and stereo playback make it a practical option for its intended room or portable use. Quite deep bass for its size. Measured bass extension of 45Hz (-10dB).
Cons: Bass is limited by its 45Hz specification. There is no companion app. Less midrange clarity than the top-ranked speakers. Discontinued.
Full Dockin D Fine+ 2 review and specifications →
| Amplifier Power | 50W |
|---|---|
| App | No |
| Aux Input | Yes |
| Bass Extension (-10dB) | 45Hz |
| Battery Life | 16 hours (Manufacturer specified) |
| Bluetooth Codecs | SBC |
| Bluetooth Version | 5.0 |
| Built-in Microphone | Yes |
| Digital Aux Input | No |
| Dimensions | 12.2” x 4.1” x 4.1” (310 x 103 x 103 mm) |
| Drivers | 2x tweeters, 2x midrange/bass drivers + 2x passive radiators |
| EQ | Yes (Bass boost 3 steps) |
| IP Rating | IPX5 |
| Maximum SPL | 96dB (measured by Alan Ross Reviews) |
| Omnidirectional | No |
| Party Mode | No |
| Power Bank | Yes |
| Power Input | USB-C |
| Stereo | Yes |
| TWS | Yes |
| Weight | 5.1 lbs (2.3 kg) |
- Links
- Reviews, Comparisons and Sound Samples
- Alan Ross Reviews: Dockin D Fine+ 2 vs Soundcore Motion Boom 50w vs 30w 😱 More from alanrossreviews →
- Alan Ross Reviews: Dockin d fine plus 2 v w king d8 budget boombox - 2020 50 watt speakers
- Alan Ross Reviews: Dockin D Fine+ 2 - overview - specs - sound test
- Alan Ross Reviews: Dockin d fine+ mk2 stereo test - two Dockin Speakers - wow!
- Alan Ross Reviews: Sony xb43 JBL Xtreme 2 W-King d8 Dockin D Fine
- Head-to-Head Comparisons