“I want a soundproof room, but how much does it actually cost?”
When you look it up online, are you troubled by prices that just say “Please inquire” and find yourself unable to set a budget?
In this article, as your Kind Life Advisor, I will disclose the real price market for soundproof rooms by size and performance.
Soundproof Room Price Market: Size-specific List#
First, let’s look at the prices of the most popular unit-type soundproof rooms.
| Size | Usage Examples | Price Market (New) |
|---|---|---|
| 0.5 Mats | Narration recording, vocal/guitar | 300,000 - 500,000 JPY |
| 0.8 Mats | Piano, electronic drums | 500,000 - 700,000 JPY |
| 1.2 Mats | Guitar + Vocals, streaming | 600,000 - 900,000 JPY |
| 1.5 Mats | Upright piano, VTuber streaming | 800,000 - 1,200,000 JPY |
| 2.0 Mats | Grand piano, band practice (1-2 people) | 1,200,000 - 1,800,000 JPY |
*For manufacturers such as Yamaha (Avitecs) and Kawai (Nasal).
Price Differences by Performance (Dr-value)#

The performance of a soundproof room is expressed by the “Dr-value (decibels)”. The higher the value, the higher the soundproofing performance (= the less sound leaks).
| Dr-value | Performance Image | Estimated Price (1.5 Mats) |
|---|---|---|
| Dr-30 | Ordinary conversation can be heard. Piano sound is halved | 600,000 - 800,000 JPY |
| Dr-35 | Piano sound is “faintly” heard. For general streaming | 800,000 - 1,000,000 JPY |
| Dr-40 | Piano sound is almost unheard. For full-scale instrument practice | 1,000,000 - 1,500,000 JPY |
Conclusion: For every increase of 5 in the Dr-value, the price goes up by approximately 200,000 yen.
Price Range by Manufacturer#
Yamaha “Avitecs” (No. 1 Market Share)#
- Features: High quality, extensive maintenance system
- Price: Slightly higher (900,000 - 1,200,000 JPY for 1.5 mats)
- Recommendation: Long-term use, professionals
Kawai “Nasal”#
- Features: 20-30% cheaper than Yamaha
- Price: Focus on cost-performance (700,000 - 1,000,000 JPY for 1.5 mats)
- Recommendation: For those who want to keep the budget down
VERYQ / “Danbotchi”#
- Features: Super compact, DIY assembly
- Price: Extremely cheap (100,000 - 150,000 JPY for less than 1 mat)
- Caution: Soundproofing performance is low (around Dr-25)
Hidden Costs: Installation and Delivery Fees#
It’s not just the price of the soundproof room unit itself. The following additional costs will definitely occur.
| Item | Cost Market |
|---|---|
| Delivery/Assembly Fee | 50,000 - 100,000 JPY |
| Air Conditioner Installation | 100,000 - 200,000 JPY (Dedicated model) |
| Vibration Mat | 10,000 - 30,000 JPY |
| Additional Lighting | 10,000 - 50,000 JPY |
Important: Make sure to check the “Total Cost (All-in-one)” when getting an estimate.
Choosing the Right Soundproof Room for Your Budget#
Budget: Under 300,000 JPY#
- Options: Danbotchi, used 0.5 mat units
- Usage: Streaming, narration recording
Budget: 500,000 - 800,000 JPY#
- Options: Yamaha 0.8 mat (Dr-30), Kawai 1.2 mat
- Usage: Electronic drums, guitar, piano (upright)
Budget: 1,000,000 JPY or more#
- Options: Yamaha 1.5 mats or larger (Dr-35 to Dr-40)
- Usage: Full-scale instrument practice, recording
Summary: Experience It at a Showroom First#
A soundproof room cannot be judged by “numbers (Dr-value)” alone. It is most important to actually go inside and check the resonance, the sense of enclosure, and usability.
Yamaha and Kawai both have showrooms nationwide, so first make a reservation and visit them.
