These are not really the same size class, and that is the honest framing here. The JBL Partybox Stage 320 ranks #3 of 51 party speakers by sound quality at $499.95; the Sony ULT Tower Max ranks #1 of 13 large party speakers by sound quality at $1,498.
The PartyBox Stage 320 is a portable party speaker. Two 6.5-inch woofers and two tweeters run on a removable battery rated for 18 hours, and its handle and wheels make the 36.4 lbs (16.5 kg) cabinet easy to move. It keeps more bass at high volume than the PartyBox 310, has a mic input with echo for karaoke, and links over Auracast.
The ULT Tower Max is an AC-only event system. Nine drivers, including three 11-inch woofers, make it far louder: AudioTribe measured 110.6dBC at about 6m outdoors. It adds a 10-band EQ, LDAC, RCA and XLR inputs, and an XLR output. At 124.1 lbs (56.3 kg) with no battery, it needs a power outlet and stays in place once set up.
Buy the JBL Partybox Stage 320 at $499.95 if you want a party speaker. Buy the Sony ULT Tower Max at $1,498 if you want a large party speaker instead.
Want more options? Browse the full Portable Bluetooth rankings.
An excellent sounding party speaker, with deep bass that holds up at high volume, wheels, a removable battery and mic inputs.
A very loud party speaker, with three big woofers for huge bass at large events.
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Specifications Side By Side
| JBL Partybox Stage 320 | Sony ULT Tower Max | |
|---|---|---|
| Price | $499.95 | $1,498.00 |
| Ranked | #3 of 51 in Party Size Portable Bluetooth Speakers | #1 of 13 in Large Party Size Portable Bluetooth Speakers |
| App | Yes | Yes (Sony Sound Connect) |
| Aux Input | Yes | RCA input |
| Battery Life | 18 hours (Manufacturer specified) | No Battery |
| Bluetooth | Yes | Yes |
| Bluetooth Codecs | SBC | SBC, AAC, LDAC |
| Bluetooth Version | 5.4 | 5.3 |
| Drivers | 2x 6.5” woofers, 2x 25mm tweeters | 9 drivers: 3x 11” woofer (2 front, 1 rear), 2x 4.7” midrange, 2x 1” tweeter, 2x 1.6” rear tweeter |
| EQ | Yes (5 band) | Yes (10 band; ULT1 / ULT2 / Flat / Live) |
| Guitar Input | Yes | No |
| IP Rating | IPX4 | Splashproof top surface |
| Microphone Input | Yes (Karaoke mode with echo effect) | Yes (6.3mm) |
| Party Mode | Yes (Auracast) | Yes (Party Chain) |
| Power Bank | Yes (USB-A, 5V/2.1A) | Yes (USB charging) |
| Power Input | AC Power cord | AC 120-240V, 50/60Hz |
| Removable Battery | Yes | No |
| Stereo | Partially | Yes |
| Omnidirectional | No | Yes (360 degree Party Sound) |
| TWS | Yes | Yes (Stereo Pair) |
| USB Playback | Yes | Yes (USB-A) |
| Weight | 36.4 lbs (16.5 kg) | 124.1 lbs (56.3 kg) |
| Amplifier Power | 240W | 2,150W (manufacturer specified) |
| Digital Aux Input | No | No |
| Lights | Yes | Yes |
| Wheels | Yes | Yes |
| Dimensions | 26.3”H x 13.2”W x 15.2”D (669 x 335 x 385 mm) | 21” x 41.8” x 18.6” (534 x 1062 x 472 mm) |
| Strap | No | No |
| Built-in Microphone | - | No |
| Wi-Fi | - | No |
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