---
product_id: 14707904
title: "Dynamat DynaBox in-Ceiling Speaker Enclosure System – Universal Fit"
brand: "dynamat"
price: "¥71765"
currency: JPY
in_stock: true
category: "Dynamat"
url: https://www.desertcart.jp/products/14707904-dynamat-dynabox-in-ceiling-speaker-enclosure-system-universal-fit
store_origin: JP
region: Japan
---

# Reduces sound transfer between rooms Improves speaker clarity & bass Flexible retrofit installation Dynamat DynaBox in-Ceiling Speaker Enclosure System – Universal Fit

**Brand:** dynamat
**Price:** ¥71765
**Availability:** ✅ In Stock

## Summary

> 🎶 Elevate your ceiling speakers to pro-level sound—because your space deserves the best.

## Quick Answers

- **What is this?** Dynamat DynaBox in-Ceiling Speaker Enclosure System – Universal Fit by dynamat
- **How much does it cost?** ¥71765 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/14707904-dynamat-dynabox-in-ceiling-speaker-enclosure-system-universal-fit)

## Best For

- dynamat enthusiasts

## Why This Product

- Trusted dynamat brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Effortless Universal Fit:** Ultra-flexible design collapses to fit existing ceiling openings—perfect for retrofits or new builds.
- • **Trusted Industry Pioneer:** From hot rods to home theaters, Dynamat’s legacy guarantees premium sound performance and durability.
- • **Complete Acoustic Upgrade Kit:** Includes SoundSnake and Back-Wave Foam inserts to optimize sound clarity and protect your investment.
- • **Crystal-Clear Audio Precision:** Encases your speaker to eliminate back-wave distortion for sharper, immersive sound.
- • **Seamless Soundproofing Barrier:** Blocks unwanted noise migration, keeping your home theater experience private and uninterrupted.

## Overview

The Dynamat DynaBox is a universal in-ceiling speaker enclosure system designed to enhance audio clarity by reducing back-wave distortion and tightening bass response. Its flexible, collapsible design allows easy retrofit installation through existing ceiling openings. The kit includes acoustic foam inserts that reduce sound transfer between rooms, creating an immersive and private listening environment. Engineered in the USA, Dynamat is a trusted brand known for premium soundproofing solutions favored by audio enthusiasts and professionals alike.

## Description

desertcart.com: Dynamat DynaBox in-Ceiling Speaker Enclosure System – Universal Fit | Retrofit Acoustic Enclosure Improves Speaker Clarity, Reduces Sound Transfer & Stops Back-Wave Distortion : Electronics

## Features

- IMPROVES IN-CEILING SPEAKER PERFORMANCE – DynaBox completely encases your in-ceiling speaker to reduce back-wave distortion and project clearer, more accurate sound into the room. The result is improved speaker clarity, tighter bass, and a more immersive listening experience.
- REDUCES SOUND TRANSFER BETWEEN ROOMS – Creates an acoustic barrier that helps reduce unwanted sound migration through ceilings and floors, so you can enjoy your home theater, media room, or whole-home audio system with less noise reaching adjacent spaces.
- FLEXIBLE DESIGN FOR EASY RETROFIT INSTALLATION – Ultra-flexible enclosure collapses to fit through existing speaker openings for fast retrofit installations or new construction. Includes SoundSnake acoustic decoupler and Back-Wave Foam for enhanced acoustic performance.
- COMPLETE SPEAKER ENCLOSURE SYSTEM – Kit includes (1) DynaBox enclosure (17" × 12" × 6.5"), (1) SoundSnake acoustic foam strip, and (1) Back-Wave Foam insert to reduce distortion, provide a moisture barrier, protect your speaker, and optimize in-ceiling speaker performance.
- THE BRAND THAT CREATED THE CATEGORY – Engineered and manufactured in the United States, Dynamat is the preferred choice of top hot rod and custom builders, car audio enthusiasts, and daily drivers. Our products have been featured in major media outlets: MotorTrend, HOT ROD, and CarAudioNow.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B002DS3P40 |
| Additional Features | Soundproofing, Flexible Design |
| Audio Driver Type | Dynamic Driver |
| Audio Output Mode | Surround |
| Best Sellers Rank | #37,453 in Electronics ( See Top 100 in Electronics ) #50 in Ceiling & In-Wall Speakers #158 in Audio & Video Speaker Accessories |
| Brand | Dynamat |
| Built-In Media | DynaBox (rubber enclosure), SoundSnake (two layers of foam), Back-wave foam (egg-crate style foam), Installation Instructions |
| Color | ['Charcoal grey'] |
| Customer Package Type | Standard Packaging |
| Customer Reviews | 4.4 4.4 out of 5 stars (115) |
| Is Waterproof | FALSE |
| Item Dimensions D x W x H | 13.3"D x 19"W x 6.9"H |
| Item Type Name | speaker enclosure |
| Item Weight | 7 pounds |
| Manufacturer | Dynamat |
| Model Name | 50306 DynaBox |
| Model Number | 50306 |
| Mounting Type | Ceiling Mount |
| Number of Audio Channels | 2 1 |
| Number of Items | 1 |
| Power Source | Corded Electric |
| Speaker Size | 54 inches |
| Speaker Type | In Ceiling |
| UPC | 769103503060 |
| Unit Count | 1 Count |
| Wireless Technology | Bluetooth |

## Product Details

- **Audio Output Mode:** Surround
- **Brand:** Dynamat
- **Model Name:** 50306 DynaBox
- **Mounting Type:** Ceiling Mount
- **Speaker Type:** In Ceiling

## Images

![Dynamat DynaBox in-Ceiling Speaker Enclosure System – Universal Fit - Image 1](https://m.media-amazon.com/images/I/51YsyxG1fTL.jpg)
![Dynamat DynaBox in-Ceiling Speaker Enclosure System – Universal Fit - Image 2](https://m.media-amazon.com/images/I/51uIV-r7k7L.jpg)
![Dynamat DynaBox in-Ceiling Speaker Enclosure System – Universal Fit - Image 3](https://m.media-amazon.com/images/I/410IAkk797L.jpg)
![Dynamat DynaBox in-Ceiling Speaker Enclosure System – Universal Fit - Image 4](https://m.media-amazon.com/images/I/41aWvUB1O7L.jpg)
![Dynamat DynaBox in-Ceiling Speaker Enclosure System – Universal Fit - Image 5](https://m.media-amazon.com/images/I/51t+dzOUtoL.jpg)

## Questions & Answers

**Q: What does a DynaBox in-ceiling speaker enclosure do?**
A: DynaBox creates an acoustic enclosure behind in-ceiling speakers to reduce back-wave distortion, improve bass response and clarity, and help reduce sound transfer between rooms.

**Q: Will DynaBox fit my in-ceiling speakers?**
A: DynaBox is designed to fit most standard in-ceiling speakers. Its flexible design compresses for easy retrofit installation and also works well in new construction projects.

**Q: Is DynaBox worth the investment?**
A: Yes. DynaBox improves speaker performance, reduces sound transfer, protects speakers from dust and insulation, and installs without major ceiling modifications, delivering long-term value.

**Q: Can DynaBox reduce noise between rooms?**
A: Yes. DynaBox helps reduce sound transfer through ceilings by containing more sound around the speaker, making it ideal for home theaters, media rooms, and whole-home audio systems.

**Q: Why choose DynaBox instead of a generic speaker back box?**
A: DynaBox combines acoustic performance, easy retrofit installation, speaker protection, and premium U.S.-made quality in one complete solution for in-ceiling speaker installations. It delivers superior performance compared to other options.

## Frequently Bought Together

- Dynamat DynaBox Ceiling Speaker Enclosure System – Reduces Vibration & Projects Clearer Sound into Your Room – Made in USA – 9 sq ft
- Dynamat En-Wall Speaker Enclosure System – Reduces Vibration & Projects Clearer Sound into Your Room – Easy Install – for 6 Inch Walls – Made in USA

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**Shop now:** [https://www.desertcart.jp/products/14707904-dynamat-dynabox-in-ceiling-speaker-enclosure-system-universal-fit](https://www.desertcart.jp/products/14707904-dynamat-dynabox-in-ceiling-speaker-enclosure-system-universal-fit)

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-10-15*