Harmony Audio

Harmony Audio Harmony Audio is a trusted brand of reliable and quality car audio products and pro audio equipment Live in harmony.

Harmony Audio products offer unparalleled performance and value all combined a sleek product line that simply cannot be

matched. The full line encompasses both Pro and Car Audio products that feature cutting edge technology for the best audio

experience.

10/17/2026

🔊 Show us your Harmony Audio and tag us.

Doesn’t matter if it’s a finished build or a sub sitting in the garage waiting on an amp. We want to see it.

Tag us and we’ll feature you on the page.

💯 Harmony Audio is our own brand, built in-house.

vid by: (Harrison Aguanno)

🔊 The definition of power. That's not us talking, that's the name on the box.Harmony Audio ML Series (Monolith) Subwoofe...
10/17/2026

🔊 The definition of power. That's not us talking, that's the name on the box.

Harmony Audio ML Series (Monolith) Subwoofers

This is the top of the Harmony Audio line. Competition grade paper cone, a 3 inch CCAW voice coil, and a die-cast aluminum basket that isn't going anywhere. Built for people who already know what they want and just need the sub to keep up.

✅ HA-ML121 / HA-ML122: 12 inch, dual 1 ohm or dual 2 ohm, 1500W RMS / 3000W peak, 9.5" depth
✅ HA-ML151 / HA-ML152: 15 inch, dual 1 ohm or dual 2 ohm, 1600W RMS / 3200W peak, 10.8" depth
✅ HA-ML181 / HA-ML182: 18 inch, dual 1 ohm or dual 2 ohm, 1750W RMS / 3500W peak, 12" depth
✅ Competition grade paper cone, stitched high roll foam surround
✅ 3 inch CCAW voice coil, tinsel leads woven into the spider
✅ Die-cast aluminum basket, high flux ferrite magnet
✅ Fin design heatsink for thermal management
✅ Spring-loaded push terminals

The 18 goes down to 30 Hz. You'll feel that one before you hear it.

💯 Harmony Audio is our own brand, built in-house.

🔗 See the full Monolith line: https://www.harmonyaudio.com/car-audio/subwoofers/ml-series

10/16/2026

🔊 Speakers and subs, all Harmony Audio.

Justin went all in on this one. Harmony Audio speakers up front, Harmony Audio subs in the back, one brand doing the whole job.

That’s the kind of customer we build for.

👇 Got any vids or photos? Show us your build and tag us, we’ll feature you.

💯 Harmony Audio is our own brand, built in-house.

10/16/2026

POV: you finally built the truck you always wanted.

's Silverado, and you can tell this one took time. Trucks like this don't happen in a weekend. They happen over months of one thing at a time, saving for the next piece, getting it right instead of getting it done.

Harmony Audio subs in the build. All his work.

💯 Harmony Audio is our own brand. We build the subs, the wire and the enclosures ourselves. Authorized dealer, 25 years.

How long did your build take? 👇

🚗 Shop subwoofers:
https://www.hifisoundconnection.com/Car-Audio-Subwoofers

10/15/2026

🔊 That’s an 18.

showing off his Harmony Audio 18.

👇 Running Harmony Audio? Tag us and we’ll feature your build.

💯 Harmony Audio is our own brand, built in-house.

🎧 Only what you need. Nothing you'll never touch.Harmony Audio Concert Series Powered PA SpeakersFour sizes, all powered...
10/15/2026

🎧 Only what you need. Nothing you'll never touch.

Harmony Audio Concert Series Powered PA Speakers

Four sizes, all powered, all with a built-in mixer. No rack, no outboard amp, no menu diving. Plug in a mic, plug in a source, set the gain, and go. If you've ever stood behind a mixer you only use three k***s on, this line is the answer to that.

✅ HA-C8A: 8 inch, 150W RMS / 300W peak, 60 Hz to 20 kHz, 93.9 dB
✅ HA-C10A: 10 inch, 200W RMS / 400W peak, 50 Hz to 20 kHz, 92.3 dB
✅ HA-C12A: 12 inch, 400W RMS / 800W peak, 45 Hz to 20 kHz, 95.1 dB
✅ HA-C15A: 15 inch, 500W RMS / 1000W peak, 32 Hz to 20 kHz, 95.4 dB
✅ 1 inch titanium compression tweeter on every model
✅ Built-in mixer with bass and treble, independent gain per input
✅ XLR line out for daisy-chaining a second cabinet
✅ Impact-resistant ABS cabinet, steel mesh woofer guard
✅ Three heavy duty handles, 35mm recessed pole mount
✅ Switchable 110 to 230V

The 12 and 15 add a second mic input with XLR, so two vocals are covered without adding a mixer.

💯 Harmony Audio is our own brand, built in-house.

🔗 See the Concert Series: https://www.harmonyaudio.com/pro-audio/concert-series

10/14/2026

🔊 Two 18s in a Tahoe.

running a pair of Harmony Audio 18 inch subs in his GMT800 Tahoe.

👇 Running Harmony Audio? Tag us and we’ll feature your build.

💯 Harmony Audio is our own brand, built in-house.

10/14/2026

🔊 Getting close.

on his fourth Harmony Audio Monolith 18. His words: gonna hear it tomorrow hopefully.

Four builds in, and he’s still counting down the last day like the first one.

👇 Running Harmony Audio? Tag us and we’ll feature your build.

💯 Harmony Audio Monolith is our own brand, built in-house.

🔊 No room for a box? That's not the end of the conversation.Harmony Audio F Series SubwoofersLimited storage, unlimited ...
10/14/2026

🔊 No room for a box? That's not the end of the conversation.

Harmony Audio F Series Subwoofers

Limited storage, unlimited bass. The Flatline series is built for trucks, hatchbacks, and anything else where a deep-mount sub was never going to happen. Slim profile, shallow mounting depth, and less airspace needed, so you keep your cargo room and still get real low end.

✅ HA-F104: 10 inch, single 4 ohm, 350W RMS / 700W peak, 4 1/16" mounting depth
✅ HA-F124: 12 inch, single 4 ohm, 400W RMS / 800W peak, 4 1/2" mounting depth
✅ Polypropylene cone with butyl rubber surround
✅ 2 inch copper voice coil, Kapton former
✅ Fin-shaped heatsink for cooling
✅ Spring-loaded push terminals
✅ 25 to 300 Hz frequency response

💯 Harmony Audio is our own brand, built in-house.

🔗 See the full F Series: https://www.harmonyaudio.com/car-audio/subwoofers/f-series

10/13/2026

🔊 Silverado owners, this one's for you.

showing off his Harmony Audio sub build in his Silverado. Truck builds are their own puzzle: less cabin than an SUV, a cab shape that does interesting things to low end, and a seat you're always working around.

He solved his. Now we want to see yours.

If you've got a Silverado, which Harmony Audio subs are you building with? Size, box, where it's going. Tell us below 👇

💯 Harmony Audio is our own brand. We build the subs, the wire and the enclosures ourselves. Authorized dealer, 25 years.

🚗 Shop subwoofers:
https://www.hifisoundconnection.com/Car-Audio-Subwoofers

Address

1738 N Gregory Drive
Nixa, MO
65714

Opening Hours

Monday 8:30am - 9pm
Tuesday 8:30am - 9pm
Wednesday 8:30am - 9pm
Thursday 8:30am - 9pm
Friday 8:30am - 9pm

Telephone

+18888512589

Website

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