Case Closed Audio
Case Closed Audio speakers lined up in the studio: orange, black and tan hard cases with big speakers on the front, plus the small black Mini

Hand-built in Montgomery County, PA

Built tough.
Hits hard.

Rugged hard-case Bluetooth speakers with a real marine speaker, an amp and a big rechargeable battery inside. Built one at a time by Brady. Pair two for true left/right stereo. Want the best sound? Get the Original with its Polk Audio speaker.

Built for the boat, the beach, the job site — sealed and water-resistant. The Original & The Street

Build yours See the speakers

TWS · True Wireless Stereo

Pair two. Double the sound.

Pair two Case Closed speakers over Bluetooth for true left/right stereo: left channel on one, right on the other. Set them up across the yard, the dock or the tailgate and the sound fills the whole space.

  • Real left/right stereo
  • Pairs over Bluetooth
  • No wires between them
Compare & pick your pair

The lineup

Three builds. Zero babying.

Best sound: the Original. Loud and tough for less: the Street. Small and magnetic: the Mini.

The Original: orange hard-case speaker with a Polk Audio marine 6x9 speaker, studio shot

The Original

Best sound

Water-resistant

TWS pairing ✓

The best-sounding build, by a lot. It runs a Polk Audio marine 6x9 coaxial speaker, and Polk has been a name-brand audio company since 1972. The sound quality is a clear step up from the Street or the Mini: crisper highs, fuller and deeper bass, cleaner vocals. If you care how your music sounds, this is the one. Sealed in a water-resistant hard case, loud enough for the boat, the beach, the tailgate or the job site.

  • Polk Audio DB692 marine 6x9 speaker: the best sound of the lineup
  • 3-way design (woofer + 2 tweeters), rated 30 Hz to 22 kHz
  • 100W amp with Bluetooth + TWS (pair two speakers) + AUX input
  • Volume, bass & treble knobs
  • 24V 4Ah lithium battery, recharges via DC port
  • Sealed switch, siliconed all the way around
  • Sound-deadening layer in the base for a sturdier, more solid build

Optional add-on: USB phone-charging panel (USB-C PD + USB-A QC3.0) with a built-in voltmeter to check the battery +$20

Case colors: Orange Tan Black

$235Order / Ask
The Street: black hard-case speaker with a honeycomb grille, studio shot

The Street

Loud + tough

Water-resistant

TWS pairing ✓

The loud, tough everyday build. Same sealed Apache 2800 case, same 100W amp, with a punchy Warzone marine speaker behind a rugged honeycomb grille, for less. Want the best sound in the lineup? That's the Original.

  • Warzone marine speaker with honeycomb grille: loud and punchy
  • 100W amp with Bluetooth + TWS (pair two speakers) + AUX input
  • 24V 4Ah lithium battery, recharges via DC port
  • Sealed switch, siliconed all the way around
  • Sound-deadening layer in the base for a sturdier, more solid build
  • Water-resistant Apache 2800 hard case with carry handle

Optional add-on: USB phone-charging panel (USB-C PD + USB-A QC3.0) with a built-in voltmeter to check the battery +$20

Case colors: Orange Tan Black

$200Order / Ask
The Mini: small black hard-case speaker with a 5.25 inch speaker, studio shot

The Mini

5.25″ + magnets

TWS pairing ✓

Small box, super strong magnets on the back. Slap it on your truck, toolbox, garage door or fridge and it stays put.

  • 5.25″ coaxial speaker
  • Super strong magnets on the back
  • Compact hard case with handle
  • Rechargeable, Bluetooth
  • Sound-deadening layer in the base for a sturdier, more solid build

Optional add-on: USB phone-charging panel (USB-C PD + USB-A QC3.0) with a built-in voltmeter to check the battery +$20

Case color: Black + ask about others

$180Order / Ask

Side by side

Compare the builds

Pick any two. The biggest difference is the speaker inside, and that's what you hear. The rest of the build is the same on every model.

✅ has it  ·  ❌ doesn't

The build

What's inside the Original

Brady's orange Original build with its Polk Audio 6x9 speaker
An actual Original, straight off the bench.
Case
Water-resistant hard-shell case with carry handle, in orange, tan or black
Speaker
Polk Audio DB692 marine 6x9, front-mounted. It's why the Original sounds so much better: a 3-way design (6x9 woofer plus 0.75″ and 0.5″ tweeters), rated 30 Hz to 22 kHz with 93 dB sensitivity.
Sealed
Sealed switch, and siliconed around the whole outside. Water-resistant, not for dunking.
Amp
100W mono amplifier board with Bluetooth and TWS (True Wireless Stereo: link two speakers together), plus an AUX input for a wired connection. Volume, bass and treble knobs.
Battery
24V 4Ah rechargeable lithium battery. Recharges via its own DC charging port, standard on every Original and Street.
Power
19mm stainless latching push-button power switch that lights up blue when it's on. Every model has the same switch.
Add-on
Optional USB phone-charging panel on the side: USB-C PD + USB-A QC3.0 ports to charge your phone off the speaker, plus a built-in voltmeter so you can check the battery level at a glance. Separate from the speaker's own DC charging port. +$20 on any model.
Made
Hand-built and tested by Brady, one at a time
Street
Same build style and sealing, with a Warzone marine speaker behind a honeycomb grille. Also water-resistant.
Inside the lid: control panel with volume, bass and treble knobs
Inside the lid: the control panel.

Quick guide

How to use your speaker

Power, Bluetooth, sound settings, charging and the voltmeter, all on one page. Tap it to open full size.

Case Closed Audio portable boombox quick guide: power on and off, Bluetooth connection, volume and sound settings, iPhone note, battery and charging, voltmeter, water resistance and tips

Options

Build yours

Pick a build, a case color and any add-on. The button writes the email for you.

Preview of the selected build
The Original in orange
Model
Case color

Orange, tan and black are standard. More case colors available on request (premium cases, extra cost) — ask.

Add-on

The Original · Orange
$235

Order this build

Custom build in mind? Different speaker, colors, mods: ask Brady.

How to order

Three steps. No checkout.

  1. 1

    Pick your build

    Choose the build and case color above, or describe a custom one.

  2. 2

    Send the email

    Tap Order. Your email app opens with the details filled in. Add your name and when you're free.

  3. 3

    Pick it up

    Brady confirms the price and timing, then you grab it locally in the Montgomery County / Pottstown, PA area.

About

Hand-built by Brady

I'm Brady, 20, from Montgomery County, PA, and a college student. Case Closed Audio is my side build: tough protective cases plus real marine speakers, sealed up and turned into Bluetooth speakers you can take anywhere.

I wire, mount and test every one myself, so if anything's ever off, you know exactly who to talk to.

Questions or orders

Email is the fastest way to reach me.

[email protected]
  • Local pickup: Montgomery County / Pottstown, PA area
  • Original $235 · Street $200 · Mini $180
  • Original & Street are water-resistant
  • Cases in orange, tan or black · custom builds welcome