Different classes, so treat this as a step-up-or-not question rather than a head-to-head. The Sony ULT Tower 7 ranks #1 of 39 party speakers by sound quality at $649.99; the Electrotec Stage One ranks #2 of 14 battery-powered PA speakers by sound quality at $1450.
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 $649.99 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 $649.99 if you want a party speaker. Buy the Electrotec Stage One at $1450 if you want a battery-powered PA speaker instead.
Battery life favors the Electrotec Stage One: rated for 100 hours against 30 hours for the Sony ULT Tower 7.
Looking for alternatives? See the complete Portable Bluetooth rankings and PA & Live Sound rankings.
Specifications Side By Side
| Sony ULT Tower 7 | Electrotec Stage One | |
|---|---|---|
| Price | $649.99 | $1450 |
| Ranked | #1 of 39 in Party Size Portable Bluetooth Speakers | #2 of 14 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 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) | Not specified |
| 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 | - |
| 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 | - |
| 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 |
| Cabinet Material | - | Not specified |
| Rigging | - | Not specified |
| Coverage | - | Not specified |
| Maximum SPL | - | Not specified |
| Bass Extension (-3dB) | - | Not specified |
| DSP | - | App-controlled EQ |
| Bluetooth | - | Yes |
| Frequency Response | - | Not specified |
Related Speaker Comparisons
How Sony ULT Tower 7 compares with other leading options:
- Sony ULT Tower 7 vs JBL Partybox 330
- Sony ULT Tower 7 vs JBL Partybox Stage 320
- Sony ULT Tower 5 vs Sony ULT Tower 7
- Sony ULT Tower 7 vs Sony SRS-XP700
- Sony ULT Tower 7 vs Sony SRS-XP500
Prices on this page were last checked September 15, 2026 at 12:52 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
Sony ULT Tower 7: $649.99 Amazon eBay
Pros: A compelling large-party value at $649.99: 420W output, an IPX4-rated 30-hour battery, 360-degree sound, wheels and four carry handles at 22.8kg. The full review praises its punchy, clean ULT1 bass, ULT2’s higher-output mode, simplified controls and unusually complete I/O: USB-C, USB-A, RCA, balanced XLR and mic input.
Cons: The reviewer notes that Auracast pairing is not backward-compatible with Sony’s older Party Connect speakers, and the hard-plastic corners lack protective rubber bumpers. IPX4 is splash resistance rather than full weatherproofing; the 30-hour claim requires lights off.
Full Sony ULT Tower 7 review and specifications →
| Amplifier Power | 420W |
|---|---|
| App | Yes (Sony Sound Connect) |
| Aux Input | RCA input |
| Battery Life | 30 hours (lights off; manufacturer specified) |
| Bluetooth Codecs | SBC, AAC, LDAC |
| Bluetooth Version | 5.3 |
| Built-in Microphone | No |
| Digital Aux Input | Yes (USB-C) |
| 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 |
| EQ | Yes (10 band; ULT1 / ULT2 / Flat) |
| Guitar Input | No |
| IP Rating | IPX4 |
| Lights | Yes |
| Microphone Input | Yes |
| Omnidirectional | Yes (360 degree Party Sound) |
| Party Mode | Yes (Auracast) |
| Power Bank | Yes (USB charging) |
| Power Input | AC power cord |
| Removable Battery | No |
| Stereo | Yes |
| TWS | Yes (Stereo Pair) |
| USB Playback | Yes (USB-A) |
| Weight | 50.3 lbs (22.8 kg) |
| Wheels | Yes |
| Wi-Fi | No |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
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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 |
| Bass Extension (-3dB) | Not specified |
| Battery Life | 100 hours (Manufacturer specified) |
| Bluetooth | Yes |
| Bluetooth Codecs | SBC |
| Cabinet Material | Not specified |
| Configuration | Battery-powered active PA |
| Coverage | Not specified |
| DSP | App-controlled EQ |
| Digital Aux Input | No |
| Dimensions | Not specified |
| Drivers | Dual 1.5" compression drivers (tweeters) + 2x 4" woofers + passive radiators (PA system configuration) |
| EQ | Yes |
| Frequency Response | Not specified |
| IP Rating | IPX6 |
| Inputs | 2x XLR/6.3mm combo (mic/line), 3.5mm stereo, USB-C audio, USB media player, Bluetooth |
| Maximum SPL | Not 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 | Not specified |
| SKAA | Yes |
| SKAA Latency | 19ms |
| Stereo | No |
| TWS | Yes |
| USB Playback | Yes |
| Weight | 39.9 lbs (18.1 kg) |
| XLR Input | Yes |
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