As I previously announced, I’m offering a special “Exclusive Tone Test Offer (15% OFF)” alongside the launch of my new model, TENORA.
Under this special offer, customers who select a wood or metal material that hasn’t yet been chosen for TENORA—and agree to assist with sound testing and data collection—can purchase the earphones at 15% off the regular price.
Materials are available on a first-come, first-served basis. Once a particular wood or metal is selected, it will be removed from the list and only offered at the regular price thereafter, so please place your order as soon as possible.
[Material List]
| Hardness | Density | Dry | Oil | ||
| A | 10 | 9 | *** | ||
| 9-10 | 9-10 | ||||
| Desert iron wood | 10 | 8-9 | ***** | ||
| B | 7-9 | 8-9 | |||
| 8-9 | 8-9 | ||||
| Tulipwood | 8-9 | 8-9 | * | ||
| Pink Ivory | 8-9 | 8-9 | |||
| Cocobolo | 7-9 | 7-9 | ** | ||
| Satine | 7-8 | 8-9 | ** | ||
| 7-9 | 9-10 | ||||
| African Sandalwood | 7-8 | 8-9 | ** | ||
| 7-8 | 6-8 | ||||
| 7-8 | 6-8 | * | |||
| Purpleheart | 7-9 | 6-8 | |||
| C | 5-8 | 6-9 | * | ||
| 5-7 | 6-8 | * | |||
| Beefwood | 5-7 | 5-7 | |||
| Granadillo | 6-8 | 6-9 | ** | ||
| D | Olivewood | 5-6 | 8-9 | **** | |
| Pallo Santo | 6-8 | 10 | ***** | ||
| 7-8 | 10 | ***** | |||
| 6-8 | 8-9 | *** | |||
| E | Ziricote | 7-8 | 6-8 | * | |
| 6-7 | 5-6 | ||||
| 6-8 | 4-6 | ||||
| 5-8 | 4-6 | ||||
| F | 6-8 | 6-8 | |||
| 6-8 | 6-8 | ||||
| 5-7 | 5-7 | ||||
| 6 | 5 | ||||
| Honduran mahogany | 6 | 5 | |||
| 6-7 | 6-7 | ||||
| 6-7 | 6-7 | ||||
| Bamboo | 5-6 | 6-7 | |||
| Black Walnut | 5-6 | 5-7 | |||
| Teak wood | 4-5 | 4-6 | |||
| 3-7 | 5-7 | ||||
| 2-5 | 4-6 | ||||
| G | 10 | 3-6 | ***** | ||
| 2-4 | 2-6 | ||||
| Stabilized Wood | 7-8 | 10 | |||
| Stainless Steel | – | – | |||
| – | – | ||||
| – | – | ||||
| – | – | ||||
| – | – | ||||
| – | – | ||||
| – | – |
Any materials that have already been selected will be shown with a strikethrough. Please note that the list is updated manually, so there may be a slight delay in reflecting the most current information.
[Differences in Sound by Wood Type]
For more information on how different woods can affect the sound, please refer to the page linked below.
About the wood of the rear housing, Part 1
About the wood of the rear housing, Part 2
About the wood of the rear housing, Part 3
About the wood of the rear housing, Part 4
About the wood of the rear housing, Part 5
About the wood of the rear housing, Part 6
[Other Materials]
If other types of wood not listed here are in stock, they may also be available. If you have a specific wood in mind based on past examples, please select “Other Material” when ordering and enter the wood’s name.
By participating in this special, hands-on testing opportunity, you can be among the first to experience TENORA at a discounted price. I hope you’ll take advantage of this offer!
[How to Order]
Please place your order via the product page linked below.






