Short answer: the JBL Partybox 300. It ranks #8 of 44 party speakers at $300; the Electrotec Stage One ranks #10 and costs $1450, so there is not much of a tradeoff to weigh.
What the Electrotec Stage One gets right: Gigantic dual swappable battery. The tradeoff: Designed for more loudness than deeper bass.
On the JBL Partybox 300 side: Exceptional sound quality with crisp, crystal clear highs and midranges, hard punchy bass without muddiness. The catch: Hard to carry, too tall, drags on the ground.
One note: the JBL Partybox 300 is discontinued, but it still ranks #8 of 44 party speakers, ahead of most of what is still sold new, so it is worth considering used.
Buy the Electrotec Stage One if the price matters more than the ranking. Buy the JBL Partybox 300 if the ranking matters more than the price.
Specifications Side By Side
| Electrotec Stage One | JBL Partybox 300 | |
|---|---|---|
| Price | $1450 | $300 Discontinued |
| Ranked | #10 of 44 in Party Size Portable Bluetooth Speakers | #8 of 44 in Party Size Portable Bluetooth Speakers |
| App | Yes | No |
| Aux Input | Yes | Yes |
| Aux Output | Yes | - |
| Bass Extension (-10dB) | 48Hz | 40Hz |
| Battery Life | 100 hours (Manufacturer specified) | 18 hours (Manufacturer specified) |
| EQ | Yes | No |
| IP Rating | IPX6 | None |
| Microphone Input | Yes | Yes |
| Party Mode | Yes (SKAA) | No |
| Power Bank | Yes | Yes |
| Power Input | AC Power cord | AC Power cord |
| Removable Battery | Yes (dual) | - |
| SKAA | Yes | - |
| SKAA Latency | 19ms | - |
| Stereo | No | Yes (lying down) |
| TWS | Yes | Yes |
| USB Playback | Yes | Yes |
| Weight | 39.9 lbs / 18.1 kg | 35.3 lbs / 16 kg |
| XLR Input | Yes | - |
| XLR Output | Yes | - |
| Bluetooth Codecs | SBC | SBC |
| Drivers | Dual 1.5" compression drivers (tweeters) + 2x 4" woofers + passive radiators (PA system configuration) | 2x 6.5" (165mm) woofers + 3x 2.25" (57mm) tweeters |
| Bluetooth Version | - | 4.2 |
| Dimensions | - | 27" x 13" x 12.7" (685.8 x 330.2 x 322.6 mm) |
| Frequency Response | - | 45Hz - 20kHz (Manufacturer specified) |
| Guitar Input | - | Yes |
| Output Power | - | 120W |
| Discontinued | - | Yes |
The Two Speakers In Full
Electrotec Stage One: $1450 Electrotecaudio
Pros: Gigantic dual swappable battery. Longest runtime of any speaker at 100+ hours. Sounds very balanced. 12+ hour battery at full blast. Extremely loud.
Cons: Designed for more loudness than deeper bass. Pretty expensive
| App | Yes |
|---|---|
| Aux Input | Yes |
| Aux Output | Yes |
| Bass Extension (-10dB) | 48Hz |
| Battery Life | 100 hours (Manufacturer specified) |
| Bluetooth Codecs | SBC |
| Drivers | Dual 1.5" compression drivers (tweeters) + 2x 4" woofers + passive radiators (PA system configuration) |
| EQ | Yes |
| IP Rating | IPX6 |
| Microphone Input | Yes |
| Party Mode | Yes (SKAA) |
| Power Bank | Yes |
| Power Input | AC Power cord |
| Removable Battery | Yes (dual) |
| SKAA | Yes |
| SKAA Latency | 19ms |
| Stereo | No |
| TWS | Yes |
| USB Playback | Yes |
| Weight | 39.9 lbs / 18.1 kg |
| XLR Input | Yes |
| XLR Output | Yes |
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JBL Partybox 300: $300 Discontinued
Pros: Exceptional sound quality with crisp, crystal clear highs and midranges, hard punchy bass without muddiness. 2x 6.5” woofers + 3x 2.25” tweeters, bass boost function, 45Hz-20kHz frequency range. 18-hour battery with 10400mAh capacity. Multiple inputs (RCA, USB, 3.5mm aux, mic, guitar). LED light modes (meter/pulse/party). True Wireless Stereo pairing up to 2 units.
Cons: Hard to carry, too tall, drags on the ground. Max spl and bass extension are only as good as the Partybox 100. No real reason to ever get one, get a Partybox 100 instead. Note, JBL daisychain is not compatible with any other non-JBL speaker and is possibly a fully digital signal. Discontinued.
| App | No |
|---|---|
| Aux Input | Yes |
| Bass Extension (-10dB) | 40Hz |
| Battery Life | 18 hours (Manufacturer specified) |
| Bluetooth Codecs | SBC |
| Bluetooth Version | 4.2 |
| Dimensions | 27" x 13" x 12.7" (685.8 x 330.2 x 322.6 mm) |
| Discontinued | Yes |
| Drivers | 2x 6.5" (165mm) woofers + 3x 2.25" (57mm) tweeters |
| EQ | No |
| Frequency Response | 45Hz - 20kHz (Manufacturer specified) |
| Guitar Input | Yes |
| IP Rating | None |
| Microphone Input | Yes |
| Output Power | 120W |
| Party Mode | No |
| Power Bank | Yes |
| Power Input | AC Power cord |
| Stereo | Yes (lying down) |
| TWS | Yes |
| USB Playback | Yes |
| Weight | 35.3 lbs / 16 kg |
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Product prices and availability were last checked August 9, 2026 at 6:57 AM UTC 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.