Explanation
S.Yairi / 1970s YD-304
This model from S.Yairi—a brand that remains immensely popular among fans even today and is highly regarded among Japanese-made acoustic guitars—features the finest-grade rosewood for the sides and back. 
The top is made of spruce.
It has a honey-brown patina and checking that gives it the look of a vintage Martin.
The playwear that tells the story of its history is not a flaw; rather, it feels like a testament to the instrument’s legacy.
The back is a three-piece construction of laminated Jacaranda and maple.
By today’s standards, this is a truly luxurious combination.
Like the back, the sides of the body are also made of laminated rosewood. 
The YD-304 is known for being used by Yosui Inoue during his debut days, including at live performances.
I’m sure there are still people today who look up to him, just as they did back then.
You can see that, unlike 1970s Martins, the neck does not feature an adjustable rod but instead has a steel truss rod installed.
It features a slightly thicker, rounded shape similar to Martins from the same era.
This guitar was crafted by Japanese artisans following these classic design principles.
In addition to the crisp, firm tone characteristic of Japanese-made instruments, the sturdy neck contributes to its appealing, resilient bass and bright, lively treble.
The attack is crisp, and when strumming chords with a softer pick, it produces a lovely, subtle tone.
[Specifications/Included Case]
TOP: Solid Spruce
BACK/SIDES: Brazilian Rosewood/Maple 3P
FINGERBOARD: Ebony
BRIDGE: Rosewood
NECK: Mahogany
NUT WIDTH: 44.0 mm
SCALE: 645 mm
CASE: Non-Original Hard Shell Case
[Repair/Modification History / Replaced Parts / Cosmetic Condition, etc.]
*As this is a used/vintage item, the information provided is based on our store’s inspection to the best of our knowledge.
Please be aware of this in advance.
-The cosmetic condition is consistent with its age.
[Playability]
- String action at the 12th fret: 2.0 mm on the 6th string side, 1.7 mm on the 1st string side
- Saddle projection: approx. 3.0 mm–4.0 mm
- There are no playability issues such as buzzing or muffled sound.
[No Warranty]
[Mail-Order Assurance Service]
Since we are unable to offer customers the opportunity to try out the instrument when purchasing via mail order, we provide a 6-day trial period after the product arrives.
Please take your time to thoroughly test the product at home, and if you are not satisfied, we will refund the purchase price.
*The customer is responsible for round-trip shipping costs.
Payment & Security
Your payment information is processed securely. We do not store your credit card details or access your credit card information.
Warranty for Used Products
Please see here for detailed warranty terms:
Electric Guitars/Electric Basses/Effectors/Amplifiers (Tuning Warranty: Up to 5 years)
If your instrument malfunctions or stops producing sound after purchase, we will repair it free of charge. The warranty period varies by product.
Acoustic Guitars (Peace of Mind Warranty: Up to 6 months)
For 1 month or 6 months after purchase, we will repair any defects resulting from normal use free of charge.
Wind Instruments (Up to 1 Year)
Upon arrival, we clean the interior of the instrument, replace consumables as needed, and perform any necessary repairs and maintenance. If the instrument malfunctions or stops producing sound during normal use, we will repair it free of charge.
◯ There is no warranty on junk items.