Quick Answer: The Polk Audio Signa S4 is the best projector speaker upgrade for most home theaters — a 3.1.2-channel Dolby Atmos soundbar with a wireless subwoofer and HDMI eARC, optical, and Bluetooth inputs, around $399. The Amazon Fire TV Soundbar 2.0 ($120, often on sale near $80) is the budget pick for any projector with HDMI ARC, the JBL Flip 6 ($90) is the rugged Bluetooth speaker to pair with a battery-powered portable or outdoor projector, the Edifier R1280T ($100-150) is the wired bookshelf pair for projectors without Bluetooth or ARC, and the Sonos Ray ($279) fits a household already running Sonos speakers elsewhere in the house.
Every projector in our best home theater projector pillar ships with a speaker, and almost none of them are good. Manufacturers spend their engineering budget on the lens and light source, not a chassis that also has to fit an amplifier and driver — the result is thin, boxy audio that’s fine for background noise but falls apart the moment a movie needs real bass or dialogue clarity at volume. This guide picks external speakers for every connection type a projector might actually offer: HDMI ARC, optical, Bluetooth, and plain analog. Ceiling-mounted your projector already? Our best HDMI cable for projector guide covers the video-side cable run, and if you’re setting up outdoors, our best outdoor projector picks call out which models already have strong built-in audio worth keeping.
By the numbers: Per BenQ’s own spec sheet, the HT2060 home theater projector ships with 5W x2 chambered speakers (10W total), and Epson’s Home Cinema 2350 spec sheet lists a single 10W speaker — both typical of the category. Every pick in this guide clears that ceiling by a wide margin: the Amazon Fire TV Soundbar 2.0 runs two 20W drivers (40W total), per Amazon’s own listing, four times a typical projector’s output, while the Polk Signa S4 packs a 7-driver array across its 3.1.2 Dolby Atmos configuration, per Polk’s spec page. Bluetooth audio also isn’t free of tradeoffs: pairing over Bluetooth typically introduces 100-200 milliseconds of latency versus a wired connection, which is enough to notice as slightly delayed lip sync on dialogue-heavy content.
Our top picks at a glance
| Speaker | Best for | Connections | Power | Price |
|---|---|---|---|---|
| Polk Audio Signa S4 | Best overall | HDMI eARC, optical, Bluetooth 5.0 | 3.1.2ch, 7 drivers | ~$399 |
| Amazon Fire TV Soundbar 2.0 | Best budget | HDMI ARC/eARC, Bluetooth | 2x20W (40W) | ~$120 (sale ~$80) |
| JBL Flip 6 | Best for portable/outdoor | Bluetooth 5.1 | ~30W, IP67 | ~$90 |
| Edifier R1280T | Best wired, no Bluetooth needed | Dual RCA / 3.5mm | 42W RMS | ~$100-150 |
| Sonos Ray | Best for multi-room Sonos setups | Optical only | 2 tweeters, 2 mid-woofers | ~$279 |
1. Polk Audio Signa S4 — Best Overall
Polk Audio Signa S4
- 3.1.2-channel Dolby Atmos with a 7-driver array, including dedicated up-firing elevation speakers.
- Wireless subwoofer adds real low-end without a cable run to the soundbar.
- HDMI eARC, optical, and Bluetooth 5.0 inputs cover almost any projector's audio-out.
- VoiceAdjust and BassAdjust let you tune dialogue clarity and bass independently.
For a dedicated home theater projector, the Signa S4 is the biggest single upgrade you can make short of replacing the projector itself. Its 3.1.2 layout adds genuine height channels for Dolby Atmos content, something no projector’s built-in speaker attempts, and the wireless subwoofer fills in the low end a projector’s thin chassis simply can’t produce. Connectivity is the other reason it tops this list: HDMI eARC handles a receiver or streaming box passthrough, optical covers older sources, and Bluetooth 5.0 lets you stream music directly when nothing’s playing on screen.
A projector needs something to play through it — Prime includes Prime Video. Try it free for 30 days.
2. Amazon Fire TV Soundbar 2.0 — Best Budget
Amazon Fire TV Soundbar 2.0
- Two 20W drivers (40W total) — 4x a typical home theater projector's built-in output.
- DTS Virtual:X processing simulates a wider soundstage from a single 24-inch bar.
- HDMI ARC/eARC input plus Bluetooth for streaming from a phone or tablet.
- Slim 2.5-inch profile sits under most projector shelf mounts without blocking the lens.
If your projector has an HDMI ARC or eARC port — check the spec sheet, since plenty of budget and portable models skip it — the Fire TV Soundbar is the cheapest way to quadruple your output over the built-in speaker. Its DTS Virtual:X processing does a reasonable job faking width from a single bar, which matters more on a projector setup than a TV since the image is often much larger than the speaker driving it. It regularly discounts to around $80, making it one of the best per-dollar upgrades in this guide.
3. JBL Flip 6 — Best for Portable or Outdoor Projectors
JBL Flip 6
- IP67 waterproof and dustproof — safe on a patio table or by a pool.
- Rated for roughly 12 hours of playtime per JBL's spec sheet, matching most portable projectors' runtime.
- PartyBoost pairs two Flip 6 units for real stereo separation.
- No outlet needed — pairs over Bluetooth to any projector, including battery-powered models.
Battery-powered portables and outdoor projectors — the kind covered in our best portable projector and best outdoor projector guides — often already have a decent 2.1-channel speaker built in, but on a windy patio or a backyard with a crowd spread out, one small speaker still struggles to fill the space. The Flip 6 solves that without a cable in sight: it’s IP67-rated for dew and splashes, its roughly 12-hour battery outlasts most portable projectors’ own runtime, and pairing two units with PartyBoost gives you actual left/right separation for a bigger backyard screen.
4. Edifier R1280T — Best for Projectors Without Bluetooth
Edifier R1280T
- 42W RMS powered bookshelf pair with a 4-inch bass driver and 0.5-inch silk tweeter per side.
- Dual RCA inputs, plus a bundled 3.5mm-to-RCA cable for direct projector hookup.
- Bass and treble dials let you tune the sound without a phone app or remote menu.
- No Bluetooth or HDMI — a deliberate, lower-cost tradeoff for wired-only setups.
Some projectors — especially older or budget-focused business and classroom models — offer only a basic 3.5mm audio-out with no HDMI ARC and no Bluetooth at all. Buying a soundbar built around wireless streaming is wasted money on that hardware, which is where a plain wired pair like the Edifier R1280T fits. Its dual RCA inputs (with a bundled 3.5mm adapter cable) connect directly to a projector’s headphone jack, and 42W RMS across two real bookshelf drivers outclasses any single-chip projector speaker on clarity and bass alike. It’s also a genuinely durable choice for a classroom projector setup that needs to survive years of daily use.
5. Sonos Ray — Best for Multi-Room Setups
Sonos Ray
- Compact soundbar with dual mid-woofers and dual tweeters plus split waveguides for wide stereo.
- Optical-only input — no HDMI, no Bluetooth, controlled entirely through the Sonos app.
- Groups with other Sonos speakers in the house for synced multi-room audio.
- Supports Dolby Digital 5.1 and DTS Digital Surround via optical passthrough.
The Ray is a narrower recommendation than the other picks here — no HDMI, no Bluetooth, and setup lives entirely inside the Sonos app — but for anyone who already owns Sonos speakers elsewhere in the house, it’s the only pick that groups seamlessly into that ecosystem for whole-home audio. It connects to a projector’s optical output specifically, so confirm your projector has a Toslink port before buying, and expect to control volume through the app or a universal remote rather than the projector’s own remote.
How to match a speaker to your projector’s outputs
- Check the port list first. HDMI ARC/eARC, optical (Toslink), 3.5mm analog, and Bluetooth are the four realistic options — and not every projector has all four, especially budget and portable models.
- Wired beats Bluetooth for lip sync. Bluetooth audio typically adds 100-200 milliseconds of latency versus a wired HDMI, optical, or analog connection — noticeable on dialogue, less so on music or ambient content.
- Battery-powered projectors need battery-powered speakers. Pair a portable or outdoor projector with a Bluetooth speaker like the JBL Flip 6 rather than a soundbar that needs its own outlet.
- More watts means more headroom, not just more volume. A 40W+ external speaker clears even a large room without distorting, versus the 5-10W speakers built into most home theater projectors.
- Don’t overbuy connectivity you won’t use. A wired-only pair like the Edifier R1280T is cheaper and just as effective if your projector’s only output is a 3.5mm jack.
The bottom line
For most home theater projectors, the Polk Audio Signa S4 is the biggest audio upgrade available — genuine Dolby Atmos, a wireless subwoofer, and inputs for whatever your setup already uses. The Amazon Fire TV Soundbar 2.0 delivers most of that improvement for a third of the price if your projector has HDMI ARC, the JBL Flip 6 is the right call for anything battery-powered or outdoors, the Edifier R1280T is the honest wired option for projectors without Bluetooth, and the Sonos Ray makes sense specifically if you’re already invested in a Sonos multi-room system. Still shopping for the projector itself? Our best home theater projector pillar and best outdoor projector guide cover current picks, and our best HDMI cable for projector roundup handles the video side of the same setup.
Prices and specs verified July 2026 and subject to change; check the current listing before buying.