Look, I’ve been in the pro audio manufacturing side for over ten years. And one question keeps popping up from small brand owners, event rental guys, and even Amazon sellers: “I see all these China factories on Alibaba – but who actually builds a decent 3‑way line array PA loudspeaker without constant driver failures or weird Bluetooth issues?”
Fair question. Because a cheap line array that dies during a wedding gig is not a bargain. It’s a nightmare.
I work with Lesound – we’re a PA speaker sound system OEM factory that has shipped thousands of portable line arrays worldwide. Not the biggest factory, but one that actually cares about what leaves the door. Let me tell you about our VS4000 system, and more importantly, answer the real questions customers ask before they wire a deposit.
What Customers Actually Ask Us (Before They Buy)
Forget the fancy brochure. Here are the exact questions people type into Google, send via WhatsApp, or ask on a factory tour. I’ve turned them into a quick table – because that’s how real buyers think.
| Question from real customers | How the VS4000 (from Lesound) answers it |
|---|---|
| “Will eight 4‑inch speakers be loud enough for 200 people outside?” | Max SPL 121dB @1m – we’ve tested this at a beach party. Eight 4” drivers + dual 15” subs (one active, one passive) cover 200‑300 guests easily. |
| “Can I change the color and put my own logo on it?” | Yes. We are a 4 inches line array manufacturer China that does full ODM – logo on grille, different paint, even custom packaging for Amazon FBA. |
| “How long does the amp last if we run it all day at a festival?” | Class‑D digital, 1800W peak (3×600W). Thermal + RMS protection + limiter. We burn‑in every unit for 48 hours. No sudden shutdowns if you don’t abuse it. |
| “Does Bluetooth actually work, or is it the cheap kind that drops every 10 minutes?” | TWS Bluetooth 5.0 with MP3 and LCD. Pair two systems for stereo. Works fine at 30 meters line‑of‑sight. Also has USB playback. |
| “I have a mixer with XLR – how do I connect?” | Two combo jacks (XLR/TRS), plus two 6.35mm jacks, RCA L/R. Outputs include Speakon to link the passive sub. No adapters needed. |
| “Is this thing heavy to carry? I’m a one‑man operation.” | Subs are MDF (heavy but sturdy), but the line array boxes are PP plastic – each 4” box is maybe 4‑5 kg. Comes with poles, brackets, and cables. Two people can load it into a minivan. |
| “Can I get one set to try before ordering 100?” | Absolutely. Sample order welcome. We even help Amazon sellers with retail packaging design. |
These aren’t made‑up questions. I’ve answered each one at least 20 times in the last year alone. The VS4000 was designed specifically to solve them.
Why Go With a 3 Way Line Array PA Loudspeaker Custom Solution?
Most cheap portable PAs are just two full‑range speakers on sticks. That works for a classroom speech. But for live music or outdoor dancing, you need proper separation of lows, mids, and highs.
Here’s what the VS4000 does differently:
- 15” active subwoofer handles 55Hz‑120Hz – that’s the kick drum and bass guitar.
- Eight 4” full‑range drivers cover 120Hz up to 2.5kHz – where vocals and most instruments live.
- One 25mm HF driver takes over above 2.5kHz – cymbals, hi‑hats, and that “air” in the sound.
The crossover points (120Hz and 2.5kHz) are preset. But because we are a 3 way line array OEM ODM China partner, we can adjust those frequencies for your specific need – maybe you want the sub to go higher for more punch, or lower for a smoother blend. Just ask.
What Makes Lesound Different From Other PA Speaker China Factories?
I’ll be honest: there are hundreds of factories in Guangzhou that can glue a speaker together. But very few act like a real PA speaker China factory for Amazon brands. What do I mean?
1. We Actually Do Custom Work (Not Just Stick a Sticker)
- Custom grille color – not just black. We’ve done white, grey, even custom RAL.
- Logo – laser engraved or silk‑screened on the sub and line array boxes.
- Packaging – color box for retail or simple kraft for rental.
- Electrical tweaks – change EQ bands, limiter thresholds, remove MP3 player to save cost.
We are a sound system custom supplier China that doesn’t say “no” immediately. Tell us your budget and your market, we’ll find a way.
2. Quality That Won’t Bite Your Amazon Account
If you sell on Amazon, you know one return hurts your ranking. Two returns and you’re in trouble. So we test:
- 48‑hour burn‑in at full power.
- Every amp module, every driver, every Bluetooth pairing checked.
- MDF subwoofer with internal bracing – less rattling.
- Steel grille with acoustic foam – protects the driver but doesn’t muffle highs.
We have ISO‑9001 processes. Not because it’s fancy, but because we got tired of customer complaints.
3. Real Power Numbers (Not Fake Peak Watts)
- 1800W peak, 900W RMS total (3×300W RMS). Enough for small stages, school gyms, wedding tents.
- Coverage: 60° horizontal × 90° vertical – the line array behaviour throws sound farther without blasting the front row.
- Frequency response: 55Hz‑20kHz – you don’t need an extra sub for most pop/rock. But the included passive sub adds even more low end.
Technical Specs – No Fluff
| Parameter | Value |
|---|---|
| System type | Powered 3‑way line array + dual 15” subs (1 active, 1 passive) |
| Frequency response | 55Hz – 20kHz (±3dB) |
| Max SPL (calculated) | 121dB @1m |
| Crossover frequencies | 120Hz, 2.5kHz |
| Sensitivity (1W/1m) | 97dB |
| Amplifier power | Class‑D, 3×300W RMS, 3×600W Peak |
| Line array drivers | 8×4” full‑range + 1×25mm HF driver (per full system) |
| Subwoofer driver | 15”, 2.5” voice coil, 50 oz ferrite magnet |
| Coverage (H×V) | 60°×90° |
| Inputs | Combo (XLR/¼”) ×2, 6.35mm Jack ×2, RCA L/R, USB‑A |
| Outputs | 6.35mm Jack ×2, RCA L/R, Speakon (for passive sub) |
| Protections | Thermal, RMS, limiter |
| Functions | TWS Bluetooth 5.0, MP3 player with LCD, 5‑band ±12dB EQ per channel |
| Power supply | AC 110V‑220V (auto‑switching) |
| Box materials | MDF (woofer), PP plastic (line array), steel grille |
| Included in system | 15” subwoofer ×2, 4” line array ×8, speaker poles ×2, brackets ×2, speaker cables ×2 |
All numbers are measured in our lab – not guessed.
Why Being a 4 Inches Line Array Manufacturer China Actually Helps You
Big line arrays use 6.5” or 8” drivers. They sound great but weigh a ton. A 4 inches line array is the sweet spot for portable systems. Light enough to carry, but still delivers true line‑source behaviour: sound drops less over distance compared to a point‑source speaker.
We are a 4 inches line array manufacturer China that spent extra time on the waveguide and driver spacing. Cheap copies have comb filtering – that’s a fancy term for “some frequencies cancel out.” Our VS4000 uses a proper second‑order crossover on the HF section (12dB/octave with poly‑caps and air‑core inductors). Result: cleaner sound, less ear fatigue.
Also, we are a 3 way line array China manufacturer that doesn’t cheap out on the passive crossover inside the line array boxes. Many factories just put a capacitor on the tweeter and call it a day. We don’t.
Ready to Talk Details? Let’s Skip the Sales Pitch.
You don’t need a long sales call. You need answers:
- OEM (your logo on our VS4000) – yes.
- ODM (we design from scratch or modify heavily) – yes, for reasonable MOQ.
- Low MOQ to test an Amazon listing – we can do 50‑100 sets.
- Ship directly to FBA or your warehouse – yes.
We have helped over 30 audio brands launch line array products on Amazon US, DE, and UK. Our PA speaker OEM manufacturer China advantage is simple: we answer emails, we send real photos, and we don’t disappear after you pay.
Stop searching for “PA speaker China factory for Amazon” and getting generic quotes. Contact Lesound directly with:
- Your target quantity
- Your market (US, EU, etc.)
- Any custom requests (color, logo, packaging)
We reply within 24 hours. Samples available.
Email: sales@lesound.com.cn
Website: www.le-sound.com
WhatsApp/WeChat: +86 13957818349
Let’s build a line array that makes your brand sound good – literally and figuratively.
Lesound – Professional 3 way line array PA loudspeaker custom manufacturer. ISO certified. Ready for your OEM/ODM project.
Post time: May-15-2026