Soundcore Rave 3S AI Party Speaker — Black (Model A31A3)
The Soundcore Rave 3S is a 200W portable PA-style party speaker that combines a line-array driver configuration with AI-powered karaoke features — including real-time vocal removal and a custom NPU chip — to serve as a self-contained entertainment system for home, backyard, and outdoor events. Two wireless microphones with anti-feedback technology ship in the box, along with reverb and guide vocal features for karaoke. The 6.5-inch NdFeB woofer and three 2.5-inch full-range speakers in a vertical line-array produce 108 dB of output capable of filling spaces up to 200 square metres. A 6.5 mm wired instrument input furthermore makes the Rave 3S a functional amplifier for guitars and wired microphones.
Important — Auracast, not PartyCast: The Rave 3S uses Auracast wireless protocol for multi-speaker linking, which is not compatible with PartyCast. It cannot synchronise with the Soundcore Boom 2 Plus, Boom 3i, or Glow Mini. Auracast supports up to 100+ Rave 3S units. Two units produce stereo output; three or more units produce mono.
Wireless microphones are not waterproof. The Rave 3S body carries IPX4 splash resistance. The included wireless microphones carry no water resistance rating — keep them away from water during outdoor events.
Technical Specifications
Audio
| Attribute | Detail |
|---|---|
| Output power | Up to 200W |
| Max SPL | 108 dB |
| Drivers | 1× 6.5-inch NdFeB woofer + 3× 2.5-inch full-range (line-array) |
| Frequency response | 40 Hz – 20,000 Hz |
| Bass technology | BassUp |
| Light effects | 8 preset music-synced effects; customisable via soundcore app |
| Orientation modes | Line-Array (upright); Spatial (flat) |
Microphone & Instrument
| Feature | Detail |
|---|---|
| Wireless microphones | 2× included; auto-connect to host speaker |
| Wireless mic batteries | 4× AA alkaline (included) |
| Wireless mic waterproofing | None — not waterproof |
| Wired input | 6.5 mm (6.3 mm) jack — microphone and guitar compatible |
| Wired mic controls | Panel knob for volume and reverb (clockwise = increase) |
| AI Vocal Removal | 4%–100% adjustable; near-zero delay; 95%+ separation accuracy |
| Reverb | 5 levels; 4 presets |
| Guide Vocal | Yes — plays original vocal quietly as pitch reference |
Connectivity
| Attribute | Detail |
|---|---|
| Bluetooth version | 5.3 |
| Bluetooth codecs | SBC, AAC |
| Multi-speaker | Auracast (100+ speakers; NOT compatible with PartyCast) |
| TWS stereo | 2× Rave 3S via Auracast (3+ units = mono) |
| AUX input | 3.5 mm jack |
| TV connection | AUX (recommended) or Bluetooth |
| App | soundcore app (iOS and Android) |
Battery & Charging
| Attribute | Detail |
|---|---|
| Battery life (50% vol, BassUp off, lights off) | Up to 12 hours |
| Charge time | Approximately 6 hours (recommended: 15W / 5V/3A) |
| Charge port | USB-C (1.5 m cable included) |
| Wall charger | Not included |
| Auto power-off | 20 minutes of inactivity (adjustable via soundcore app) |
Durability & Build
| Attribute | Detail |
|---|---|
| IP rating | IPX4 (splashproof — not submersible) |
| Colour | Black |
| Handle | Built-in carry handle (top rear) |
Package Contents
| Item | Detail |
|---|---|
| Speaker | Soundcore Rave 3S |
| Microphones | 2× wireless microphones |
| Batteries | 4× AA alkaline batteries |
| Cable | 1.5 m USB-C to C charging cable |
| Guide | Quick Start Guide (including safety information) |
| Wall charger | Not included |
Use Cases
Home and Backyard Karaoke Parties
The Rave 3S ships as a complete karaoke system — two wireless microphones, AI Vocal Removal, reverb, and guide vocal arrive in the box without additional purchase. One-tap vocal removal converts any Bluetooth playlist into a backing track, and the adjustable removal level accommodates songs where full removal produces audible artefacts in the instrumental. The Spatial Mode orientation spreads sound across a backyard or living room for ambient listening, while Line-Array Mode projects vocals clearly across a crowd.
Outdoor Events and Garden Parties
The IPX4 rating covers moderate rain and incidental splashes — sufficient for outdoor use in light weather. At 108 dB with BassUp active, the Rave 3S fills open outdoor spaces that smaller portable speakers cannot compete with at volume. Auracast links up to 100+ additional Rave 3S units for larger event coverage — each additional speaker adds both output and spatial coverage across a site. Note that the wireless microphones should remain dry and away from direct water exposure at outdoor events.
Live Instrument Practice and Amplification
The 6.5 mm instrument input accommodates electric guitars and bass guitars directly, making the Rave 3S a functional practice amplifier with reverb. The 200W output at moderate levels provides more headroom than most dedicated practice amps in its price range — with the addition of a microphone input for vocal monitoring alongside the instrument feed. The wired mic reverb control on the panel adjusts independently, allowing balanced levels between vocal and instrument.
TV Karaoke and Home Entertainment
The Rave 3S connects to a television via AUX cable (recommended) or Bluetooth, playing the TV audio through the speaker while AI Vocal Removal strips out on-screen vocals for karaoke from music video channels or streaming services. Soundcore recommends the AUX connection over Bluetooth for TV use due to the lower latency of the wired signal — avoiding lip-sync mismatches during video karaoke.
Considerations
Battery, Protocol and Waterproofing
Battery life drops significantly with BassUp and lights active. The 12-hour figure applies at 50% volume with BassUp off and lights off. Running BassUp at higher volumes with light effects active during a party will reduce playtime substantially — plan for 5–8 hours under typical party conditions. Charge time is 6 hours with the recommended 15W charger; no wall charger ships in the box.
Auracast does not connect with PartyCast devices. The Rave 3S uses Auracast protocol exclusively for multi-speaker linking. It cannot synchronise with any PartyCast-enabled Soundcore speaker — including the Boom 2 Plus, Boom 3i, Glow Mini, or earlier Rave series models. Buyers who already own PartyCast speakers and want to extend them should note this incompatibility before purchasing the Rave 3S.
IPX4 covers splashing — not submersion. The Rave 3S resists rain and incidental water contact but does not survive submersion or heavy poolside splashing. Buyers seeking a fully waterproof speaker should consider the Boom 3i (IP68) or Boom 2 Plus (IPX7). Additionally, the wireless microphones carry no water resistance rating whatsoever — treat them as indoor electronics at outdoor events.
Low-battery shutdown has a 24-second charging delay. After automatic shutdown due to low battery, the Rave 3S requires 24 seconds on charge before it resumes charging, and a further 2 minutes before it powers back on. This is a built-in safety protection per EU IEC62680 certification — not a fault.
Frequently Asked Questions
How long does the Soundcore Rave 3S battery last?
Up to 12 hours at 50% volume with BassUp off and lights off, tested in Soundcore’s laboratory. Real-world party use with BassUp on, lights active, and volume above 50% will reduce this significantly — plan for 5–8 hours under typical conditions.
Are the wireless microphones waterproof?
No. The Rave 3S body carries IPX4 splash resistance; the wireless microphones carry no water resistance rating. Keep the microphones away from water, pools, and rain during outdoor events.
Can the Rave 3S connect with my Boom 3i or Boom 2 Plus?
No. The Rave 3S uses Auracast protocol, which is not compatible with the PartyCast protocol used by the Boom 3i, Boom 2 Plus, and Glow Mini. The Rave 3S only links with other Auracast-enabled devices. Soundcore has stated it will expand the Auracast product range in the future.
How does AI Vocal Removal work?
A dedicated NPU chip in the Rave 3S analyses the incoming Bluetooth audio signal and separates the vocal frequencies from the instrumental in near-real time. Pressing the AI Vocal button on the speaker enables removal at a preset level. Adjusting the level on the wireless microphone’s AI Vocal button cycles through four levels (25%, 50%, 75%, 100%) plus off — and the speaker retains this setting between restarts.
Can I connect a guitar to the Rave 3S?
Yes. The 6.5 mm input on the rear panel accepts standard guitar and bass guitar cables. Connect the instrument directly to the input and adjust volume and reverb using the dedicated panel knobs. The Rave 3S functions as a portable guitar amplifier with reverb at this connection.
How do I connect the Rave 3S to my TV?
Soundcore recommends the AUX method: connect a 3.5 mm cable from the TV’s headphone or audio-out port to the Rave 3S AUX-IN port, then set the TV’s audio output to the headphone or AUX-out mode. Alternatively, connect via Bluetooth by enabling Bluetooth on the TV and pairing with “Rave 3S” (not “Rave 3S ble”).
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