Short answer: the Electrotec Stage One for marathon runtime, the Sony ULT Tower 7 for party coverage and price. The Stage One claims 100 hours from dual removable batteries plus IPX6 weatherproofing and low-latency SKAA linking, against the Tower 7’s claimed 30 hours. The Tower 7 still wins on price at $548, rolls on wheels and uses a seven-driver 360-degree layout suited to a living-room-to-backyard party.
This pits Sony’s Tower 7, a 360-degree consumer party speaker, against the Electrotec Stage One, a performer-focused battery PA. The Tower 7 offers seven drivers for 360-degree sound, a claimed 30-hour battery, wheels, IPX4 splash resistance, 10-band EQ and a full RCA/XLR/USB-C/mic input section. The Electrotec Stage One offers dual removable batteries for a claimed 100-hour runtime, IPX6 weatherproofing, low-latency SKAA wireless linking, app EQ and XLR mic/line I/O.
Choose the Tower 7 for wheels for easier transport, immersive 360-degree party sound and a lower price: Its wheels also make it easier to roll between rooms or events. Its 360-degree drivers and ULT1/ULT2/EQ modes suit a living-room-to-backyard party speaker better than a performer-focused PA cabinet. At $548 it also costs less.
Choose the Electrotec Stage One for marathon battery life and weatherproofing: Its claimed 100h battery beats the Tower 7’s 30h.
Buy the Sony ULT Tower 7 at $548 if you want a party speaker. Buy the Electrotec Stage One at $1,450 if you want a battery-powered PA speaker instead.
Looking for alternatives? See the complete Portable Bluetooth rankings and PA & Live Sound rankings.
A big, loud party speaker on wheels with punchy bass, a 30 hour battery, 360 degree sound and inputs for mics and instruments.
A battery PA speaker with very high output, a claimed 100 hour battery and weather resistance, built for events.
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Specifications Side By Side
| Sony ULT Tower 7 | Electrotec Stage One | |
|---|---|---|
| Price | $548.00 | $1450 |
| Ranked | #1 of 51 in Party Size Portable Bluetooth Speakers | #2 of 17 in Battery-Powered PA Speakers |
| App | Yes (Sony Sound Connect) | Yes |
| Aux Input | RCA input | Yes |
| Battery Life | 30 hours (lights off; manufacturer specified) | 100 hours (Manufacturer specified) |
| Bluetooth | Yes | Yes |
| Bluetooth Codecs | SBC, AAC, LDAC | SBC |
| Bluetooth Version | 5.3 | - |
| Built-in Microphone | No | - |
| Digital Aux Input | Yes (USB-C) | No |
| Dimensions | 13.7” x 16.6” x 28” (348 x 422 x 711 mm) | - |
| Drivers | 7 drivers: 1x woofer, 2x midrange, 2x front tweeter, 2x rear tweeter | Dual 1.5” compression drivers (tweeters) + 2x 4” woofers + passive radiators (PA system configuration) |
| EQ | Yes (10 band; ULT1 / ULT2 / Flat) | Yes |
| Guitar Input | No | Yes |
| IP Rating | IPX4 | IPX6 |
| Microphone Input | Yes | Yes |
| Omnidirectional | Yes (360 degree Party Sound) | No |
| Amplifier Power | 420W | 400W |
| Party Mode | Yes (Auracast) | Yes (SKAA) |
| Power Bank | Yes (USB charging) | Yes (USB-A + USB-C) |
| Power Input | AC power cord | AC Power cord |
| Removable Battery | No | Yes (dual) |
| Stereo | Yes | No |
| TWS | Yes (Stereo Pair) | Yes |
| USB Playback | Yes (USB-A) | Yes |
| Weight | 50.3 lbs (22.8 kg) | 39.9 lbs (18.1 kg) |
| Wi-Fi | No | - |
| Lights | Yes | - |
| Wheels | Yes | - |
| Strap | No | - |
| Passive | - | No |
| Outputs | - | Aux, XLR |
| Bass Extension (-10dB) | - | 48Hz |
| Inputs | - | 2x XLR/6.3mm combo (mic/line), 3.5mm stereo, USB-C audio, USB media player, Bluetooth |
| 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) |
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