Short answer: the Electrotec Stage One for runtime, the JBL Partybox 330 for sound. The Stage One’s gigantic dual swappable battery gives it the longest runtime of any speaker at 100+ hours, but it is designed for more loudness than deeper bass and it is pretty expensive. The 330 is convenient to move on handle and wheels, though its sound is nearly identical to the 310 and Stage 320 despite the power bump.
What the JBL Partybox 330 offers: Handle and wheels are convenient. Set against that: Sound quality is nearly identical to the 310 and Stage 320 despite the power bump, so probably not worth an upgrade if you already own either of those.
Buy the JBL Partybox 330 at $629.95 for a party speaker, or the Electrotec Stage One at $1,450 for a battery-powered PA speaker instead.
If battery life is a priority, the Electrotec Stage One is rated for 100 hours versus 18 hours for the JBL Partybox 330.
Want more options? Browse the full Portable Bluetooth rankings and PA & Live Sound rankings.
Specifications Side By Side
| JBL Partybox 330 | Electrotec Stage One | |
|---|---|---|
| Price | $629.95 | $1450 |
| Ranked | #2 of 44 in Party Size Portable Bluetooth Speakers | #2 of 14 in Battery-Powered PA Speakers |
| App | Yes | Yes |
| Aux Input | Yes | Yes |
| Battery Life | 18 hours (Manufacturer specified) | 100 hours (Manufacturer specified) |
| Bluetooth | Yes | Yes |
| Bluetooth Codecs | SBC | SBC |
| Bluetooth Version | 6.0 | - |
| Charging Time | 3 hours | - |
| Drivers | 2x 6.5” (165mm) woofers + 2x 1” (25mm) PEN dome tweeters | Dual 1.5” compression drivers (tweeters) + 2x 4” woofers + passive radiators (PA system configuration) |
| EQ | Yes (Smart EQ mode) | Yes |
| Guitar Input | Yes | Yes |
| IP Rating | IPX4 | IPX6 |
| Microphone Input | Yes (Karaoke mode with echo effect) | Yes |
| Inputs | Optical | 2x XLR/6.3mm combo (mic/line), 3.5mm stereo, USB-C audio, USB media player, Bluetooth |
| Party Mode | Yes (Auracast) | Yes (SKAA) |
| Power Bank | Yes (USB-C, 5V/1A) | Yes (USB-A + USB-C) |
| Power Input | AC Power cord | AC Power cord |
| Removable Battery | Yes | Yes (dual) |
| Stereo | Partially | No |
| Omnidirectional | No | No |
| TWS | Yes | Yes |
| USB Playback | Yes | Yes |
| Weight | 37.7 lbs (17.1 kg) | 39.9 lbs (18.1 kg) |
| Amplifier Power | 280W | 400W |
| Digital Aux Input | No | No |
| Lights | Yes | - |
| Wheels | Yes | - |
| Dimensions | 26.1”H x 13.1”W x 14.8”D (662.5 x 334 x 375 mm) | - |
| Strap | No | - |
| Outputs | - | Aux, XLR |
| Bass Extension (-10dB) | - | 48Hz |
| SKAA | - | Yes |
| SKAA Latency | - | 19ms |
| XLR Input | - | Yes |
| Configuration | - | Battery-powered active PA |
| DSP | - | App-controlled EQ |
| Cabinet Material | - | Phenolic and vinyl coated birch plywood |
| Rigging | - | Pole mount |
| Maximum SPL | - | 128dB max output (Manufacturer specified) |
Related Speaker Comparisons
How JBL Partybox 330 compares with other leading options:
- Sony ULT Tower 7 vs JBL Partybox 330
- JBL Partybox 330 vs JBL Partybox Stage 320
- JBL Partybox 310 vs JBL Partybox 330
- Sony ULT Tower 5 vs JBL Partybox 330
- JBL Partybox 330 vs JBL Partybox Club 120
Prices on this page were last checked October 4, 2026 at 9:58 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 Partybox 330: $629.95 Amazon B&H Photo Video eBay
Older models: the JBL Partybox Stage 320 (ranked lower, rated 4.6/5), the JBL Partybox 310 (ranked lower, rated 4.5/5) and the JBL Partybox 300 (ranked lower, rated 4.3/5).
Pros: A highly complete rolling party speaker: removable battery, telescoping handle and wheels, light show, Auracast, USB-C lossless and optical inputs, plus dual mic/guitar inputs. It supplies a little more power than the JBL Partybox 310 and JBL Partybox Stage 320, while reviewers report better midrange clarity than the older JBL Partybox 310 and the same deep party-speaker bass.
Cons: It remains very large and heavy, and the sound improvement over the JBL Partybox Stage 320 is modest rather than transformational. JBL removed the dedicated mic gain/control knobs found on earlier models, a real drawback for frequent karaoke use. Do not upgrade from a JBL Partybox 310 or JBL Partybox Stage 320 just for the higher watt figure.
Full JBL Partybox 330 review and specifications →
| Amplifier Power | 280W |
|---|---|
| App | Yes |
| Aux Input | Yes |
| Battery Life | 18 hours (Manufacturer specified) |
| Bluetooth | Yes |
| Bluetooth Codecs | SBC |
| Bluetooth Version | 6.0 |
| Charging Time | 3 hours |
| Digital Aux Input | No |
| Dimensions | 26.1”H x 13.1”W x 14.8”D (662.5 x 334 x 375 mm) |
| Drivers | 2x 6.5” (165mm) woofers + 2x 1” (25mm) PEN dome tweeters |
| EQ | Yes (Smart EQ mode) |
| Guitar Input | Yes |
| IP Rating | IPX4 |
| Inputs | Optical |
| Lights | Yes |
| Microphone Input | Yes (Karaoke mode with echo effect) |
| Omnidirectional | No |
| Party Mode | Yes (Auracast) |
| Power Bank | Yes (USB-C, 5V/1A) |
| Power Input | AC Power cord |
| Removable Battery | Yes |
| Stereo | Partially |
| Strap | No |
| TWS | Yes |
| USB Playback | Yes |
| Weight | 37.7 lbs (17.1 kg) |
| Wheels | Yes |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
- JBL Partybox 330 vs JBL Partybox Stage 320
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- JBL Partybox 330 vs JBL Partybox 310
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Electrotec Stage One: $1450 Electrotec Audio eBay
Pros: An exceptionally capable battery-powered PA: dual removable batteries deliver a claimed 100-hour runtime, and high-efficiency drivers deliver very high output with a measured 48Hz -10dB bass point. It adds app EQ, IPX6 protection, mic and XLR inputs/outputs, USB playback and low-latency SKAA linking, making it unusually flexible for events and performers. Measured bass extension of 48Hz (-10dB).
Cons: It prioritizes maximum output and endurance over truly deep bass, so it will not replace a dedicated subwoofer for low-frequency-heavy music. At 18.1kg it is a substantial carry, and its focused PA-style presentation is less suitable for wide, relaxed living-room listening.
Full Electrotec Stage One review and specifications →
| Amplifier Power | 400W |
|---|---|
| App | Yes |
| Aux Input | Yes |
| Bass Extension (-10dB) | 48Hz |
| Battery Life | 100 hours (Manufacturer specified) |
| Bluetooth | Yes |
| Bluetooth Codecs | SBC |
| Cabinet Material | Phenolic and vinyl coated birch plywood |
| Configuration | Battery-powered active PA |
| DSP | App-controlled EQ |
| Digital Aux Input | No |
| Drivers | Dual 1.5” compression drivers (tweeters) + 2x 4” woofers + passive radiators (PA system configuration) |
| EQ | Yes |
| Guitar Input | Yes |
| IP Rating | IPX6 |
| Inputs | 2x XLR/6.3mm combo (mic/line), 3.5mm stereo, USB-C audio, USB media player, Bluetooth |
| Maximum SPL | 128dB max output (Manufacturer specified) |
| Microphone Input | Yes |
| Omnidirectional | No |
| Outputs | Aux, XLR |
| Party Mode | Yes (SKAA) |
| Power Bank | Yes (USB-A + USB-C) |
| Power Input | AC Power cord |
| Removable Battery | Yes (dual) |
| Rigging | Pole mount |
| SKAA | Yes |
| SKAA Latency | 19ms |
| Stereo | No |
| TWS | Yes |
| USB Playback | Yes |
| Weight | 39.9 lbs (18.1 kg) |
| XLR Input | Yes |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
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