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Harmony Audio HA-RS12 Car Stereo Rhythm Loaded 12 Vented 600W Sub Box Enclosure

Based on 1 reviews
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Harmony Audio HA-RS12 Car Stereo Rhythm Loaded 12" Vented 600W Sub Box Enclosure
Harmony Audio HA-RS12 Car Stereo Rhythm Loaded 12" Vented 600W Sub Box Enclosure

Ultimate Sub Enclosures

Harmony Audio loaded enclosures were designed with one thing in mind, big time bass output while being the smallest psychical footprint possible. They also happen to look great while doing it with durable black and gray carpet and Harmony Audio embroidered logo on each model. Common features include high quality MDF wood construction, custom designed port on vented models, spring loaded terminal cup and recessed subwoofers for a clean look.



  • Loaded Single 12" Rhythm Series Vented Sub Box
  • Power Handling:
    • Peak: 600 watts
    • RMS: 300 watts
  • Sensitivity: 88.2dB
  • Frequency Response: 25Hz - 300Hz
  • Enclosure Material: 5/8" MDF Wood
  • Enclosure Port Tuning: 33Hz
  • Enclosure Dimensions: 19-11/16" Width x 15-3/4" Height x 12-1/2" Top Depth x 14-7/8" Bottom Depth
  • 2 Ohm @ Terminal Cup


  • Compact Design Ideal for Trunk
  • Custom Designed Vented Port
  • Recessed Subwoofer Clean Look
  • Durable Black and Gray Carpet
  • Embroidered Harmony Audio Logo
  • Spring Loaded Terminal Cup
This item is New
1 Year Manufacturer's Warranty
Proposition 65 Warning for California Consumers

WARNING: This product can expose you to chemicals which is known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to

Ratings and Reviews


1 product ratings

Excellent Subwoofer from Honest Professionals!

Aug 28, 2022

My experience with HiFiSoundConnection has been nothing but solid! I'm sticking with them for all my audio needs. I purchased this sub and box little less than a year ago and just got around to installing it only to find out it had a defective voice coil. HiFiSoundConnection let me return it for a full exchange and now it's in my car sounding AMAZING! It's everything I was hoping for and more. I was really just hoping for a satisfying subwoofer but I was blown away how much bass this 12" sub really thumps. It's clean with no additional feedback, just pure low frequency bass. Bought the matching 600W amp to go with it along with the same Harmony Audio brand wiring kit. This was my first time setting up an amp and sub in my car on my own so it took some research but it turned out amazing! I will be getting rear speakers from here in the near future.

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Frequently Asked Questions for this Product:

When will my order ship?
Most orders placed before 3:00 PM CST will ship within 24 hours. If you need a product by a specific time please contact us at 1-877-275-4434 before ordering.
When will I receive my tracking number?
Most tracking numbers are sent out around 5:30 PM CST of the following business day. Please allow 24-business-hours after ordering before requesting tracking information.
How fast will I receive my product?
Depending on your location it may take 3-4 business days for your order to arrive. Your tracking number will tell you the exact day your order will arrive. If you need an order by a specific date we recommend you call us at 1-877-275-4434

Return Policy
You may return this item in its original condition within 30-Days for a refund, minus a 20% restocking fee, and minus any shipping charges we paid to get the item to you.