JBL PartyBox 310 vs 710: which one to rent for a villa party in Croatia
The two PartyBoxes we get asked about most. One is lighter and lasts most of a day on battery; the other is several times the power and plugs into the wall. Here is the honest split, and the crowd size where it flips.
Almost everyone who asks us for “the JBL party speaker” means the PartyBox 710. Then they see the price of the PartyBox 310 and ask the reasonable question: what am I actually losing for €35 a day?
Quite a lot, and also almost nothing, depending entirely on how many people are standing in front of it. Here is the version with the catalogue numbers in it.
The table
| PartyBox 310 | PartyBox 710 | |
|---|---|---|
| Per day | €75 | €110 |
| Per week | €370 | €540 |
| Power | 240W | 800W RMS |
| Runtime | ~18h on battery | Built-in battery (~6h moderate output) + mains (AC, 100-240V) |
| Weight | 17.4kg | 27kg (has wheels) |
| Water | IPX4 | IPX4 splashproof |
| Inputs | 2× mic, guitar, Bluetooth, USB | 2× mic, guitar, Bluetooth 5.1, USB, RCA |
| Refundable damage hold | €200 | €300 |
| Right now | on request | in stock |
One caveat on the top row before you do arithmetic with it: JBL does not quote these two on the same basis. The 310 is listed at 240W and the 710 at 800W RMS, and an RMS figure and a bare wattage are not the same kind of number. Read that row as an ordering — the 710 is substantially the bigger amplifier — not as a ratio you can multiply.
The only question that actually decides it
How many people, and are they inside or outside?
Walls are free volume. A speaker in a stone villa living room is working with every surface in the room helping it; the same speaker on an open terrace is firing into the dark and getting nothing back. That is why the honest answer changes so sharply around the same headcount.
- Up to about 30, mostly indoors or on a small terrace — the 310. It has the headroom, and the money saved is better spent on almost anything else.
- 30 to 60, or a real dance floor, or outdoors — the 710. This is not a close call. 240W runs out of top end outdoors and the way you notice is not “it is quiet”, it is that someone keeps pushing it past where it sounds good.
- Past 60 on an open terrace — neither. Skip to the last section.
When the 310 is the right call
Default for daytime, for smaller villas, and for the second speaker.
At €75/day it is the cheapest thing in the catalogue that still looks and behaves like a party speaker rather than a Bluetooth box, and three things make it the smarter rent more often than people expect.
~18h of battery. This is the one that surprises people: the cheaper, smaller PartyBox has by far the longer runtime. The 710’s own figure is Built-in battery (~6h moderate output) + mains (AC, 100-240V) — around six hours of moderate output before it wants a socket. The 310 will do a pool day, a sunset, and the start of the evening without anyone thinking about power. If your week is mostly daytime with one big night in it, the 310 is the speaker that fits the week and the 710 is the speaker that fits the night.
Nearly ten kilos lighter. The 310 weighs 17.4kg against the 710’s 27kg (has wheels). Both have wheels, and wheels solve flat ground. They do not solve the staircase in a converted stone house in Stari Grad, or a Split apartment with no lift, or the fifty metres of gravel between where a van can stop and where the pool is. That gap is the difference between one irritated person and two.
Two of them beat one of anything. At this price we can send a pair — €150/day for the two — and put one at the pool and one on the roof terrace, which is what actually happens at a villa. Real coverage in the two places people stand beats more volume in one place they are not.
Skip the 310 if the party is the point rather than the soundtrack, or anything is happening outdoors past about forty people.
When the 710 is the right call
Default for the one big night, and for anywhere with a socket.
It runs off the wall. The 710’s power source is listed as Built-in battery (~6h moderate output) + mains (AC, 100-240V), and that is the real separation between the two — not the battery, the socket. Plugged in, the runtime question disappears entirely and you get the amplifier’s full behaviour for as long as the night lasts. Croatian villas are on ordinary 230V sockets and the 710 ships with what it needs. If there is mains within reach of where the party is, the 710’s six-hour battery figure stops mattering and the 310’s eighteen-hour one stops being an advantage.
800W RMS. Outdoors, on a terrace, with sixty people talking over it, this is what you are paying for. The 710 holds its composure at a level where the 310 is already being asked for more than it has.
Built-in synced LED show. Both of these are the wheels-and-lights formula — that is the whole reason people pick a PartyBox over a Bose S1 Pro+ — and on the 710 the light show is the cheapest single upgrade to how a room feels. It is also the reason to not rent one, which we get to below.
Skip the 710 if it has to go up stairs, onto a boat, or anywhere sand and salt are involved.
The lights are a feature and a liability
Worth saying plainly, because it is the most common regret we hear. A synced LED show is exactly right for a Zrće pre-drinks session or a villa full of twenty-somethings, and exactly wrong for a fortieth birthday where the in-laws are at the table. It is not a thing you can turn down to taste — the speaker either looks like a nightclub or it is off.
If the brief is “music, but grown-up”, neither PartyBox is your speaker. The Bose S1 Pro+ at €85/day is deliberately plain, and the three-way battery speaker comparison covers that argument properly.
When neither PartyBox is the answer
- A boat, a tender, a beach, anything with salt or sand. Both are rated IPX4, which covers splashes and light rain, not dust and not immersion. The Soundboks Go is IP65 (dust + spray) at 9.2kg and is what we send for a week on the water.
- A sunset dinner, a speech, a ceremony. The Bose S1 Pro+ has 2x combo XLR/TRS, Bluetooth, 3.5mm and 11h of battery, weighs 7.2kg, and does not announce itself.
- A hundred people on an open terrace. This is PA territory, not party-speaker territory. Two Mackie Thump 215 tops on stands are €175/day and the PA and audio system page sizes it properly.
- Eight people in an apartment and a real budget. The JBL EON ONE Compact at €65/day is the smallest thing here we would still put our name on.
What to add, whichever one you take
The 310’s inputs are listed as 2× mic, guitar, Bluetooth, USB; the 710’s as 2× mic, guitar, Bluetooth 5.1, USB, RCA. Two microphone channels on each, which is genuinely useful and mostly goes unused.
- Speeches or karaoke on the cheap. A Shure SM58 is €15/day and plugs straight into one of those mic channels. It is Dynamic cardioid on a XLR cable and there is nothing to go flat.
- Speeches where the speaker moves. The Sennheiser EW-D wireless handheld at €75/day, ~100m line-of-sight of range.
- Someone wants to DJ. The 710 lists RCA among its inputs, so a Pioneer DDJ-FLX4 at €65/day plugs in without a mixer. The Zrće Pre-Drinks package is that exact pairing at €125/day, against €175/day for the two rented separately.
What a week actually costs
Weekly rates are not seven times the daily. The 310 is €370 for the week against €525 at the day rate; the 710 is €540 against €770. On a seven-night villa booking the gap between the two speakers over the whole week is €170 — about one group dinner, which is usually how the decision gets made in the end.
Add a refundable damage hold — €200 on the 310, €300 on the 710 — charged with the rental and returned when the gear comes back working. How it works has the detail.
Then delivery, which is per booking rather than per day: €100 doorstep in Split, €360 to Hvar with the ferry both ways, €440 to Pag and Zrće, €520 to Dubrovnik. Pickup from our Split base is free if anyone in the group has a car. Where to base yourself goes through that trade-off, and the Split villa party gear guide breaks a full villa rig down by group size.
One practical note on availability: the 710 is in stock and the 310 is on request, which in July and August is not a small difference. On-request items are ordered in, so they need real notice.
The short version
Take the 310 if the speaker has to last all day, go up stairs, or serve a group under thirty — or if you would rather have two speakers in two places than one loud one.
Take the 710 if there is one night the whole trip is built around, there is mains within reach of it, and the crowd is past thirty.
Take neither if it is going on a boat, if anyone is giving a speech at a dinner, or if the terrace has a hundred people on it.
Dates, a villa address and a rough headcount at /reserve/ and we will come back with a firm quote including the delivery line. We are dry hire — the gear arrives cabled and tested and we show you how to run it, but nobody stays to operate it.
— Party Rental Croatia
