The Alpine Corporation Solar Bluetooth Rock Speaker is a Bluetooth speaker with a rock-like design that's intended for outdoor use. It comes with a solar panel on top, which you can use to charge its battery while it's playing. It has an incredibly long-lasting battery life, and you can pair it with up to two devices at the same time. Unfortunately, its sound profile is quite uneven, so vocals and lead instruments are honky and harsh while it struggles to reproduce a thumpy low-bass. There aren't any sound customization features available, unfortunately.
Our Verdict
The Alpine Corporation Solar Bluetooth Rock Speaker is disappointing for music. Its sound profile is quite uneven, and it lacks a lot of low-bass, so you don't feel the thump and punch in your audio. Its mid-range is overemphasized, so vocals and lead instruments are forward, boxy, and honky in the mix, while sibilants like S and T sounds are dull and dark. Unfortunately, there aren't any sound customization features available, and its soundstage performance is poor. It doesn't get very loud, either, but at least there isn't a lot of compression when you play it at max volume.
- Not a lot of compression at max volume.
- Doesn't get very loud.
- Lacks low-bass.
- Poor soundstage performance.
The Alpine Corporation Solar Bluetooth Rock Speaker is poor for videos and movies. It struggles to reproduce low-bass, so you don't feel the thumps and rumbles in action-packed scenes. Dialogue can also sound forward and harsh due to the overemphasized mid-range. Its soundstage performance is poor, and it has to downmix stereo content into mono, so you don't feel very immersed in your videos. On the upside, its low latency with iOS and Android devices via Bluetooth is suitable for movies, but some apps compensate for latency differently.
- Not a lot of compression at max volume.
- Low latency via Bluetooth.
- Doesn't get very loud.
- Lacks low-bass.
- Poor soundstage performance.
The Alpine Corporation Solar Bluetooth Rock Speaker is fair for podcasts. You can pair it with up to two devices at the same time, which is handy if you like to switch your audio source frequently. However, its sound profile is a bit uneven, especially in the mid-range where vocals are reproduced, so they can sound forward, boxy, and even harsh. This speaker also doesn't get very loud, but on the upside, there isn't a lot of compression present at max volume.
- Supports multi-device pairing.
- Not a lot of compression at max volume.
- Doesn't get very loud.
- Poor soundstage performance.
The Alpine Corporation Solar Bluetooth Rock Speaker doesn't have a microphone and doesn't support voice assistants.
The Alpine Corporation Solar Bluetooth Rock Speaker is passable for outdoor use. It's battery-powered, so you can use it outside without having to plug it into an outlet, and it has long-lasting battery life. You can also charge it via its built-in solar panel. It has a decent build quality, and the manufacturer advertises it as water-resistant. However, it doesn't get very loud, and its poor soundstage performance means that audio doesn't really sound clear from all angles. It also isn't very portable.
- 22-hour battery life (and more with solar recharging).
- Advertised water resistance.
- Supports multi-device pairing.
- Doesn't get very loud.
- Lacks low-bass.
- Poor soundstage performance.
Changelog
-
Updated May 01, 2025:
We referenced the Lodge Solar Speaker 4 Series 2 in the Style box.
- Updated Sep 06, 2024: We've updated the Battery scores and text, as we've reevaluated how the Battery Life, Charge Time, and Power Saving scores are weighted. We've also updated the relevant usage boxes.
- Updated Sep 09, 2021: Updated the text to provide more information regarding its solar charging capabilities.
- Updated Mar 24, 2021: Updated battery life results.
Check Price
Differences Between Sizes And Variants
The Alpine Corporation Solar Bluetooth Rock Speaker comes in 'Grey' and 'Brown' color variants. We tested the 'Grey' variant, and you can see the label for the model we tested here. We expect both color variants to perform similarly.
If you come across another version, let us know in the comments, and we'll update our review.
Popular Speaker Comparisons
The Alpine Corporation Solar Bluetooth Rock Speaker is a budget-friendly outdoor speaker with a very unique, rock-like design that can help it blend in with your landscaping. It has an exceptionally long battery life that's suitable for long days outside, and there's also a built-in solar panel to charge it. That said, its sound profile is quite uneven and may not be ideal for fans of a more neutral sound.
See our recommendations for the best Bluetooth speakers, the best Bluetooth speakers under $100, and the best waterproof Bluetooth speakers.
Depending on your listening habits, you may prefer either the JBL Flip 5 or the Alpine Corporation Solar Bluetooth Rock Speaker. The JBL is smaller, more portable, and offers a better-balanced sound profile that can produce a more extended low-bass. It also has better directivity, resulting in a more natural-sounding soundstage than the Alpine. The Alpine Corporation can get louder and has an outdoor-friendly, rock-like design with a built-in solar panel. It also has a longer-lasting battery life, though this can depend on your usage.
The Ultimate Ears HYPERBOOM is a better speaker than the Alpine Corporation Solar Bluetooth Rock Speaker. The Ultimate Ears can play stereo content without downmixing it to mono, resulting in a more immersive soundstage. It also has a more neutral and better-balanced sound profile, suitable for a wide variety of audio content. You can customize its sound thanks to the graphic EQ and presets featured in its companion app. It can get louder, and its built-in carrying handle also makes it more portable. That said, this rock-like speaker is designed to better blend in with outdoor landscaping, which some users may prefer.
The Pohopa EF-B210G speakers are better for the outdoors than the Alpine Corporation Solar Bluetooth Rock Speaker overall. They come in a pair of two speakers that can be paired together. They also have unique lantern designs with LED lights that alternate colors to the beat of your music. Unlike the Alpine, they can play stereo content without downmixing it to mono. They also get louder and have a more extended low bass, though their sound profile is a bit uneven. They're also rated IP54 for dust and water resistance. However, the Alpine has better latency performance with iOS and Android devices than the Pohopa speakers, and some users may prefer its rock-like design with a built-in solar panel.
The JBL Xtreme 3 is a better speaker than the Alpine Corporation Solar Bluetooth Rock Speaker. The JBL is better-built, is more portable, and can play stereo content without downmixing it to mono. Also, its out-of-the-box sound profile is more neutral, and it reproduces a more extended low-bass. That said, some listeners may prefer the Alpine Corporation's rock-like design for their outdoor decor, and it also has a longer battery life.
Test Results
for pictures & test results
for pictures & test results
for pictures & test results
