The Eastwood OM-150 is a modern take on the classic octave mandolin, designed for players who crave rich, resonant tone with the comfort and playability of a well-crafted electric instrument. Whether you're expanding your mandolin family, scoring cinematic textures, or diving into Celtic, folk, or progressive styles, the OM-150 delivers a bold, expressive voice with rock-solid performance.
Tuned one octave below a standard mandolin (GDAE), the OM-150 opens up a lower register that blends beautifully with guitar, fiddle, and voice—making it a perfect tool for both solo work and ensemble playing.
The OM-150 Octave Mandolin is built for players who want to explore new textures without sacrificing feel or tone. It’s familiar, yet entirely fresh—and ready to go wherever your creativity takes it.
Features & Specs
Body: Archtop, 3" Deep (at rims)
Body Material: Basswood with Maple Veneer
Neck: Set Maple
Fingerboard: Rosewood, Dot Markers
Pickup: Custom Mini-Humbucker x2
Controls: 2x Volume, 2x Tone
Bridge: Floating, Adjustable Rosewood
Scale Length: 23"
Width at the Nut: 1 11/32"
Hardware: Nickel/Chrome
Strings: 26/46, 18/34, 09/24, 10/10 tuned gG, dD, aA, ee (Custom Tuning available on request)
Eastwood Custom Hardshell Case INCLUDED
Case Fit
Custom Hardshell Case INCLUDED
Shipping Details
The Tenor Guitars fulfillment warehouse is located in Nashville, TN., USA. Ground shipping throughout contiguous USA is FREE.
No matter where you live, we offer affordable worldwide shipping with a 100% delivery guarantee. If an item is lost or misplaced during transit, we've got your back. However, if you would prefer to require a signature on delivery, you can select that at checkout.
*Please note that additional tax and duties may apply for residents outside of the USA.
Returns
If you've simply decided that the item you ordered is not for you, you can send it back within 45 days of purchase for refund, credit, or exchange, minus shipping. Simply contact us, and someone from our returns department will be in touch as soon as possible. If your order qualified for free shipping, the shipping cost will be deducted from the refund or credit.
If you think your instrument has arrived damaged or defective in any way, please contact our support team as soon as possible. If approved, we will cover shipping expenses* (within contiguous USA) for you to return the item. From there, we will work with you personally to sort out compensation whether by exchange, refund, or credit.
Between 45 - 120 days, if you wish to return your item, we will retain a 20% restocking fee from your refund amount. After that time we will entertain returns or exchanges on a case by case basis only.
