Short answer: the Teufel Rockster Cross if sound quality matters most, the W-King D8 if price matters most. The Teufel Rockster Cross ranks #21 of 78 large speakers at $199.99. The W-King D8 ranks #43 at $69.99, $130 cheaper.
What the Teufel Rockster Cross offers: Pretty neutral frequency response. More vocal/midrange-focused than the JBL Xtreme 4, thanks to a larger mid/bass driver - better suited to rock and jazz. Nicer upper-bass detail than the JBL Xtreme 4. Punchy, well-controlled bass that suits rock music, unlike the Soundcore Boom 2 Plus’s overboosted, uncontrolled bass even at stock tuning. Clear, detailed audio with good vocal presence and solid Bluetooth codec support even a couple years after release. Watch for: Outdoor mode can sound somewhat harsh due to the 4khz peak. Not as deep or full-sounding in the bass as the JBL Xtreme 4.
What the W-King D8 offers: At 2.43 kg, W-King D8 combines 2x 70mm woofers + 2x 31mm tweeters + passive radiators with Bluetooth and aux. Claimed 24 hours (manufacturer specified) battery life, ipx7 protection, up to 101db and stereo playback make its feature set practical for its intended room or portable use. Watch for: Bass is limited by its 49Hz specification. There is no companion app. No EQ adjustment.
Buy the Teufel Rockster Cross when sound quality outweighs the price for you, and the W-King D8 when the price outweighs sound quality instead.
There is a real battery-life gap here: the W-King D8 is rated for 24 hours, the Teufel Rockster Cross only 16 hours.
Looking for alternatives? See the complete Portable Bluetooth rankings.
Specifications Side By Side
| Teufel Rockster Cross | W-King D8 | |
|---|---|---|
| Price | $199.99 | $69.99 |
| Ranked | #21 of 78 in Large Size Portable Bluetooth Speakers | #43 of 78 in Large Size Portable Bluetooth Speakers |
| Aux Input | Yes | Yes |
| Bass Extension (-10dB) | 51Hz | 49Hz |
| Battery Life | 16 hours (Manufacturer specified) | 24 hours (Manufacturer specified) |
| IP Rating | IPX5 | IPX7 |
| Power Input | DC barrel jack | USB-C |
| TWS | Yes | No |
| Weight | 5.3 lbs (2.4 kg) | 5.4 lbs (2.43 kg) |
| App | No | No |
| Bluetooth Codecs | SBC, aptX | SBC |
| Built-in Microphone | Yes | Yes |
| EQ | No | No |
| Party Mode | No | No |
| Power Bank | Yes (USB-A) | Yes (USB-A) |
| Stereo | Partially | Yes |
| Omnidirectional | No | No |
| Bluetooth Version | 5.0 | - |
| Dimensions | 15" x 6.3" x 5.1" (380 x 160 x 130 mm) | 12.6" x 4.8" x 4.7" (320 x 121.9 x 119.4 mm) |
| Drivers | 5" woofer, 2x textile dome tweeters + 2x passive radiators | 2x 70mm woofers + 2x 31mm tweeters + passive radiators |
| Frequency Response | 50Hz - 20kHz (Manufacturer specified) | - |
| Amplifier Power | 30W | 90W max / 50W RMS |
| Digital Aux Input | No | No |
| Maximum SPL | - | 101dB (measured by Alan Ross Reviews) |
| MicroSD Playback | - | Yes |
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Prices on this page were last checked September 16, 2026 at 12:41 AM 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
Teufel Rockster Cross: $199.99 Amazon eBay
Pros: Pretty neutral frequency response. More vocal/midrange-focused than the JBL Xtreme 4, thanks to a larger mid/bass driver - better suited to rock and jazz. Nicer upper-bass detail than the JBL Xtreme 4. Punchy, well-controlled bass that suits rock music, unlike the Soundcore Boom 2 Plus’s overboosted, uncontrolled bass even at stock tuning. Clear, detailed audio with good vocal presence and solid Bluetooth codec support even a couple years after release. Measured bass extension of 51Hz (-10dB).
Cons: Outdoor mode can sound somewhat harsh due to the 4khz peak. Not as deep or full-sounding in the bass as the JBL Xtreme 4.
Full Teufel Rockster Cross review and specifications →
| Amplifier Power | 30W |
|---|---|
| App | No |
| Aux Input | Yes |
| Bass Extension (-10dB) | 51Hz |
| Battery Life | 16 hours (Manufacturer specified) |
| Bluetooth Codecs | SBC, aptX |
| Bluetooth Version | 5.0 |
| Built-in Microphone | Yes |
| Digital Aux Input | No |
| Dimensions | 15" x 6.3" x 5.1" (380 x 160 x 130 mm) |
| Drivers | 5" woofer, 2x textile dome tweeters + 2x passive radiators |
| EQ | No |
| Frequency Response | 50Hz - 20kHz (Manufacturer specified) |
| IP Rating | IPX5 |
| Omnidirectional | No |
| Party Mode | No |
| Power Bank | Yes (USB-A) |
| Power Input | DC barrel jack |
| Stereo | Partially |
| TWS | Yes |
| Weight | 5.3 lbs (2.4 kg) |
- Links
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W-King D8: $69.99 Amazon eBay
Pros: At 2.43 kg, W-King D8 combines 2x 70mm woofers + 2x 31mm tweeters + passive radiators with Bluetooth and aux. Claimed 24 hours (manufacturer specified) battery life, ipx7 protection, up to 101db and stereo playback make its feature set practical for its intended room or portable use. Measured bass extension of 49Hz (-10dB).
Cons: Bass is limited by its 49Hz specification. There is no companion app. No EQ adjustment.
Full W-King D8 review and specifications →
| Amplifier Power | 90W max / 50W RMS |
|---|---|
| App | No |
| Aux Input | Yes |
| Bass Extension (-10dB) | 49Hz |
| Battery Life | 24 hours (Manufacturer specified) |
| Bluetooth Codecs | SBC |
| Built-in Microphone | Yes |
| Digital Aux Input | No |
| Dimensions | 12.6" x 4.8" x 4.7" (320 x 121.9 x 119.4 mm) |
| Drivers | 2x 70mm woofers + 2x 31mm tweeters + passive radiators |
| EQ | No |
| IP Rating | IPX7 |
| Maximum SPL | 101dB (measured by Alan Ross Reviews) |
| MicroSD Playback | Yes |
| Omnidirectional | No |
| Party Mode | No |
| Power Bank | Yes (USB-A) |
| Power Input | USB-C |
| Stereo | Yes |
| TWS | No |
| Weight | 5.4 lbs (2.43 kg) |
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