...

EXPLORE OUR PRODUCTS

Shop

Browse all Electrotech Speakers and accessories.

User Guides & Manuals

Quick setup + how-to manuals.

GET SUPPORT

Product Registration

Activate your Stage One warranty.

Warranty & Repairs

1-year warranty with proof of purchase.

CONNECT WITH US

About Us

Meet the team behind the sound.

Blog

Insights, stories & music culture.

“The Knowledge” Stage One XB Subwoofer

Wireless Power Where It Matters Most

In the age of portable sound systems, low end is often the first thing sacrificed.

Plenty of systems get loud. Plenty claim “bass.”
But very few deliver true sub-bass impact—the kind you don’t just hear, but feel—without latency, distortion, or bulky wired complexity.

Stage One XB was created to solve that problem.

This guide exists for performers, DJs, sound designers, and serious listeners who understand that bass isn’t an accessory—it’s the foundation of the entire system.

Physics Over Hype

The portable audio market is flooded with products that exaggerate bass through DSP tricks, artificial resonance, and distortion-heavy tuning. It may sound impressive for a moment—but it collapses under real volume, real music, and real use.

Stage One XB takes the opposite approach.

Instead of gimmicks, it relies on acoustics, cabinet physics, and motor strength to deliver bass that stays tight, controlled, and musical at any level.

What actually matters:

  1. Low-frequency extension – how deep the system can go without rolloff
  2. Transient response – how fast the bass reacts to musical changes
  3. Phase integrity – how cleanly the low end integrates with full-range speakers
  4. SPL without distortion – output that holds together at real performance levels

Stage One XB is engineered to deliver authoritative low end from 28Hz upward, while remaining perfectly locked to Stage One in time, phase, and feel.

This isn’t boosted bass.
It’s structural bass.

Stage One XB — The Missing Dimension

Stage One XB is a next-generation mobile wireless subwoofer designed specifically to expand the Stage One system into a full-range, high-impact performance rig.

When paired together, Stage One and XB form a stackable or pole-mounted wireless sound system capable of covering everything from intimate gatherings to large outdoor environments—without cables, delay, or compromise.

At the core of Stage One XB are dual custom Electrotec 10-inch neodymium woofers, engineered to move serious air with speed and control. The cabinet is tuned to produce not just volume, but dimension—allowing bass notes to breathe, punch, and decay naturally.

The result:

  1. Deep, physical low end
  2. Tight transient response
  3. Massive output with studio-grade clarity

This is not “more bass.”
This is the full dimension of sound.

Industry-First Wireless Subwoofer Integration

Stage One XB uses SKAA and SKAA Pro wireless technology exclusively—the same ultra-low-latency system trusted by professional audio manufacturers worldwide.

This allows Stage One XB to integrate seamlessly with Stage One and other SKAA-enabled systems, delivering rock-solid synchronization with no audible delay and no signal drift.

Unlike Bluetooth-based subwoofers, Stage One XB remains phase-accurate and locked in time—so the low end hits exactly when it should.

  1. No pairing chaos.
  2. No latency.
  3. No cables.

Just a unified system that behaves like a single instrument.

Built for the Road. Built for Real Use.

Stage One XB isn’t designed for living rooms.
It’s built for transport, repetition, and demanding environments.

Every detail—from cabinet construction to power delivery—was engineered to survive real-world use without sacrificing sound quality.

Built to Perform Anywhere

  • Dual hot-swappable batteries for extended playtime
  • Stackable enclosure designed to integrate perfectly with Stage One
  • Pole-mount capability for flexible system layouts
  • Pro-level inputs and outputs for serious setups
  • Touring-grade cabinet construction using professional sound-system materials

Even at extreme volume levels, Stage One XB maintains tight, controlled, distortion-free bass—the kind that anchors a system instead of overwhelming it.

For Those Who Demand More Than Hype

Stage One XB exists for people who actually care about sound.

It turns Stage One into a complete, high-impact wireless performance system—one that delivers real low end, real power, and real control without compromise.

 

  • No marketing tricks.
  • No inflated specs.
  • Just engineering, execution, and performance you can trust.
Sale!

PRE SALE STAGE ONE XB – Wireless Portable Subwoofer

Original price was: $1,399.00.Current price is: $1,299.00.

-

* Nothing is too expensive if it’s worth more than you paid for it.

This is the most powerful subwoofer in its class — with dual hot-swappable batteries, pro-level inputs, and reliable wireless audio over SKAA. Built for party makers, DJs, musicians, content creators, event pros, and anyone who demands elite performance and epic sound.

Add to Wishlist
Add to Wishlist
The converted amount may vary depending on current exchange rates and will be adjusted at checkout.
SKU: ea-s1-g1-1 Category:

Shipping Domestic

Free domestic shipping on all orders within the continental United States (excludes Hawaii and Alaska). Ships within 3–5 business days. International shipping available — delivered in 2–4 days (subject to customs clearance).

International Shipping (DHL Express Worldwide)

We proudly ship Stage One across the globe via DHL Express Worldwide — the gold standard for fast, secure international delivery. Most orders arrive in 2–5 business days, subject to your country’s customs process. Terms Apply

Every shipment includes:
End-to-end DHL tracking
Reinforced protective packaging for long-distance travel
Priority handling for batteries & pro-audio electronics
Multiple delivery attempts with local pickup options

Warranty & Returns

We stand behind every Stage One speaker. Your purchase includes a 2-year warranty.

Want even more peace of mind? Upgrade to a full 36-month extended warranty for just $149.

You also get 90 days to try it out, risk-free — if you’re not blown away, send it back for a full refund. Terms Apply

What You Get

Every Stage One XB package includes:

  • Stage One Speaker

  • 2 Hot-Swappable Batteries (30% Charged)

  • High Speed Battery Charger

  • Documentation + Quick Start Guide

  • Optional All-Black Grill Logo

  • QR Code for the full video manual covering all operational features.
  • Protective Weather Bag

Finance

Break your purchase into easy monthly payments with Affirm — starting as low as $94/month for qualified buyers.
Just select “See if you qualify” at checkout — no hidden fees, no impact on your credit score.

Let’s Check The Specs

About Stage One XB

App compatible with iPhone and Android devices
Works with any SKAA/SKAA Pro Transmitter or Nadja Hub and any SKAA Receiver

Connectivity/Inputs

  • SKAA & SKAA PRO
  • 3.5mm stereo input
  • Combo XLR/TRS

Outputs

  • SKAA & SKAA PRO Transmission
  • 3.5mm Stereo Out
  • XLR Output

Drivers

  • 2 Electrotec Custom 10 inch Neodymium x In-house Custom Designed Woofer

Driver Impedance

  • Woofer 2Ω

Amplification

  • 2 x 200-Watt RMS Infineon Merus MA5302MS

Frequency Response

  • Reference:  130db Peak Max Output, 1 watt – 1 Meter AES Standard
  • SNR A-weighted, Ref 1w at 997Hz, SKAA Mode 82db
  • Digital Resolution 48k Sample/s, 16 bits

    Battery Specifications

    • 115 Wh, 22.2V at 7Ah
    • Battery Management System on board battery
    • Power Supply 100-240 VAC, 50/60Hz Output 26V 125W
    • 100+ Hours at mid-volume (using both batteries)
    • 8+ hours at full volume (using both batteries)
    • 2.5 Hours Rapid Charge to full per battery

    Cabinet

    • Material: Phenolic & Vinyl coated Poplar
    • Dimensions: 15.75 x 14.5 x 26.25 Inches

    Wireless

    • SKAA Range up to 50-meter reliable range

    RF

    • RF Power +18dBm
    • Antenna Type FE

    SKAA

    • SKAA Standard Compatibility SKAA OS 2.1 and later
    • SKAA Latency 36.71ms +/- 1.5 samples & 19ms +/- 1.5 samples (PRO Mode)

    Features

    • SKAA & SKAA PRO Wireless Connectivity
    • 3.5mm stereo Input and Outputs
    • Combo XLR/TRS Inputs and Outputs
    • Adjustable Low Pass Filter from 50Hz – 150Hz
    • Adjustable Phase
    • Routing
    • XLR Out High Pass Filter
    • XLR Routing
    • Dual Hot Swappable Batteries

    Frequently Asked Questions

    Questions & Answers to Help You

    Is Stage One XB a standalone subwoofer or does it require Stage One?

    Does Stage One XB connect via Bluetooth?

    How does Stage One XB integrate wirelessly with Stage One?

    What frequency range does Stage One XB cover?

    How loud is Stage One XB on its own and when paired with Stage One?

    Can I run multiple Stage One XB subwoofers together?

    Does Stage One XB have adjustable crossover and phase controls?

    What inputs and outputs are available on Stage One XB?

    Does the app give you EQ capabilities?

    The Stage One app comes loaded with professionally tuned EQ presets for incredible sound right out of the box — plus the freedom to create and save your own custom presets.

    How long does the battery last, and can it be hot-swapped?

    Is Stage One XB weather-resistant and safe for outdoor use?

    My cart
    Your cart is empty.

    Looks like you haven't made a choice yet.