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Harmony Audio HA-RS15 Car Stereo Rhythm Loaded 15 Vented 900W Sub Box Enclosure

Based on 1 reviews
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Ultimate Sub Enclosures

Harmony Audio loaded enclosures were designed with one thing in mind, big time bass output while being the smallest physical 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.


  • 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
Harmony Audio HA-RS15 Car Stereo Rhythm Loaded 15" Vented 900W Sub Box Enclosure


  • Loaded Single 15" Rhythm Series Vented Sub Box
  • Power Handling:
    • Peak: 900 watts
    • RMS: 450 watts
  • Sensitivity: 87.6dB
  • Frequency Response: 22Hz - 300Hz
  • Enclosure Material: 5/8" MDF Wood
  • Enclosure Port Tuning: 23Hz
  • Enclosure Dimensions: 25-5/8" Width x 17" Height x 19" Top Depth x 21-1/2" Bottom Depth
  • 2 Ohm @ 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

Honest review

Oct 8, 2021

The loaded box is a great value. The 15 inch speaker is ok for the money. Remember price point and value here. This will not handle 2,000 watts and hit 150 db. That's not what you are buying here. I plays low, sounds good and is a good value. The box is excellent for the money and worth the price without the sub. Great attention to detail and the speaker attachments are by Allen bolts. Nice touch. Box is great for an upgrade in speaker if you choose. Again the 15 it comes with is nearly free. The best part is the customer service. You can buy here risk free. They will help out and take care of any issues. Some of the best customer service ive had online. Not afraid to purchase anything from this site. If you are on a budget and have realistic expectations this is a good buy. I have 6 currently in a pole barn with concert speakers and they run fine on 500-600 watts each.

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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.
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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.