The Kicker Bullfrog BF400 ranks #41 out of 89 total Boombox Size Portable Bluetooth Speakers for sound quality. See all Portable Bluetooth rankings for every top pick.
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#41 Kicker Bullfrog BF400: $399.99 Discontinued eBay
Pros: In a five speaker side by side from Livin’ Loud with Andy it had the clearest sound of the group, ahead of the JBL Xtreme 3, JBL Flip 5 and Kicker’s own Bullfrog BF100, with a flatter pink noise response through the mids and highs. In Williston Audio Labs’ test most listeners also preferred it to the much bigger Turtlebox Original Gen3 and Pioneer PBM5 for its cleaner sound. Two full range drivers and two passive radiators fire from both sides for 360° sound. IP66, a rated 20 hours at medium volume, an FM tuner, aux input, a USB power bank output, the Kicker Connect app with five EQ presets, and DoubleKICK pairing with a second Bullfrog.
Cons: It trades bass for that clarity: listeners heard less low end than from the JBL Flip 5 and the Turtlebox. It isn’t very loud either, peaking at about 96 dB in Williston Audio Labs’ test against 102 dB for the Turtlebox and 105 dB for the Pioneer, from a modest 20W amplifier. Battery life falls to about 3 hours at loud volume, and it charges only from its own 15V barrel plug adapter. The evidence is listening comparisons, not measurements of its tuning. Discontinued.
How it compares: Just above it: JBL Authentics 300 - $100 cheaper, 12 fewer hours of battery life. Just below it: B&O Beolit 20 - $349 more, 12 fewer hours of battery life.
| Amplifier Power | 20W |
|---|---|
| App | Yes (Kicker Connect) |
| Aux Input | Yes |
| Battery Capacity | 37Wh (11.1V, 3350mAh) |
| Battery Life | 20 hours at medium volume, 3+ hours loud (Manufacturer specified) |
| Bluetooth | Yes |
| Built-in Microphone | No |
| Charging Time | 2.5 hours |
| Dimensions | 10.6”H x 6”W x 7.7”D (269 x 152 x 196 mm) |
| Drivers | 2x 76mm (3”) full range drivers + 2x 76x102mm (3x4”) passive radiators |
| EQ | Yes (5 presets) |
| FM Tuner | Yes |
| IP Rating | IP66 |
| Maximum SPL | 96dB (measured by Williston Audio Labs) |
| Omnidirectional | Yes |
| Power Bank | Yes (USB-A, 2.1A) |
| Power Input | DC Barrel Connector (15V/2.66A) |
| Strap | No |
| TWS | Yes (DoubleKICK Connect) |
| Weight | 8.6 lbs (3.9 kg) |
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