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AUSTRALIA'S #1 ACOUSTIC GUITAR SPECIALIST
AUSTRALIA'S #1 ACOUSTIC GUITAR SPECIALIST
I-M-14TB
The National M-14T ‘ThunderBox’ Resonator Guitar takes the celebrated M-14 series to bold new heights, delivering greater volume, punch, and low-end response. With its deeper 4" body, the ThunderBox produces a thunderous yet balanced sound that resonates with warmth and clarity. Its carefully selected tonewoods and expert craftsmanship ensure the unmistakable character that players expect from National, while offering a livelier, woodier twist on the classic resonator voice.
Built for performance as well as playability, the ThunderBox features a solid mahogany neck paired with an ebony fingerboard for smooth, responsive fretting. Mother-of-pearl inlays add a refined touch, while the satin polyester finish highlights the natural beauty of its construction. Complete with a National Deluxe Hardshell Case, this guitar is as road-ready as it is stage-worthy. The ThunderBox is designed to inspire musicians seeking a resonator with depth, power, and unmatched tonal personality.
Features
Deeper 4" body for enhanced volume and low-end response
Laminate top and back with solid mahogany sides for rich, resonant tone
Smooth ebony fingerboard with elegant mother-of-pearl inlays
Reliable National tuners and slotted headstock design
Includes National Deluxe Hardshell Case for premium protection
Body Mahogany (laminate top/back, solid sides)
Neck Mahogany
Fingerboard Ebony
Headstock Slotted
Tuners National
Finish Satin polyester
Case National Deluxe Hardshell
Instruments & Amps
Free courier shipping on orders over $1499 to eligible metro areas
$49–$69 standard shipping on lower-value orders
Express shipping available for an additional fee
Regional and remote areas may incur higher freight costs
Accessories
Free standard shipping on orders over $99
Flat $8.99 shipping under $99
$15 express shipping available
Delivery Details
All orders ship with tracking
Instruments and large items require signature on delivery
If freight costs exceed expectations, we’ll contact you before shipping
Shipping rates, eligibility, and delivery options are confirmed at checkout based on your location.
Buy Now, Pay Later
Zip – 3 months interest-free under $1,000, 6 months interest-free over $1,000
Afterpay – available at checkout
Pay in Full
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Rent to Own
Studio19 Rentals – low monthly payments with the option to buy later
All prices are in AUD and include GST. Payment options are shown at checkout.
If something’s not right, please contact us first and we’ll help you work through the best solution
Returns, exchanges, repairs, or credits are available for faulty or misdescribed items
Return requests should be made within 7 days of delivery
Freight charges aren’t refundable
Non-faulty returns may incur return shipping and a small restocking fee
Opened consumables (including strings and picks) can’t be returned
Returns are assessed case-by-case so we can ensure the fairest outcome for everyone.
We aim to show the exact guitar in stock whenever possible
For one-of-a-kind or preowned instruments, photos will always be of the actual guitar you’ll receive
Production models may vary slightly in timber grain, colour, finish, or hardware due to natural materials
If you’d like to see the exact guitar before buying, just ask — we’re happy to send photos of the instrument in stock
Where multiple guitars are available, you can choose the exact one you receive
Please note: natural cosmetic variations aren’t considered faults, but if you have any questions about appearance, we’re always happy to help before purchase.
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