Avantgarde Acoustic Duo SD

Marsoni

M251S

$18450.00

Get it in 3 business days with 1 day shipping. Friday, May 29

Avantgarde Acoustic Duo SDThe Duo SD takes the Uno SD recipe (detailed elsewhere) and scales it up, both physically and also technologically. In comparison the Duo features a larger mid range horn which means it can work down to even lower frequencies and therefore reduce the crossover point to the bass system. The driver is larger too, up from 5" to 7" and an Alnico magnet is used, which are rightly prized for their improved texture, speed, reduced grain and more natural

Easy Shipping

Quick Dispatch:

Your Avantgarde Acoustic Duo SD orders ship within 1-2 business days.

Delivery Options:

Standard: 3-7 business days
Fast: 2-3 business days
Express: 1-2 business days

Order Tracking:

You'll receive a tracking link by email once your Avantgarde Acoustic Duo SD ships.

Need Help?
Questions about Avantgarde Acoustic Duo SD, sizing, or delivery? We're just an email away.

Live Shipping Estimates:
Enter your location at checkout to see available shipping methods and costs for Avantgarde Acoustic Duo SD in your area.

Get Shipping Estimates

Country Zip/Postal Code

Exchange/Return Notes

We offer a 30-day return/exchange service after receiving.
Final sale items are not eligible for returns or exchanges.
To process your return/exchange, please contact us at [email protected]
Please click here for more details>>> Return & Exchange Policy

These bags are a nice size and seem durable, especially for larger items. However, they arrived with a very strong odor that was noticeable as soon as I opened the package. I'm hoping the smell fades over time, but it was disappointing and worth mentioning. Overall, the bags are functional, but the odor keeps me from giving a higher rating.

WAS THIS REVIEW HELPFUL?YesReportShare

Reviewed in the United States on June 2, 2026

Verified Purchase

Liz A

Bozeman, US

★★★★★ 5

Exactly what I was looking for

Color: Extra Large - 3Pcs

Needed it for a shoe box gift & a couple other small clothing items & they fit perfectly. Loved that it came with some tissue paper as well. Pretty sturdy.

WAS THIS REVIEW HELPFUL?YesReportShare

Reviewed in the United States on December 27, 2025

Verified Purchase

Lorie Patton

Grantham, US

★★★★★ 5

Great quality

Color: Extra Large - 3Pcs

Great quality. I would purchase again.

WAS THIS REVIEW HELPFUL?YesReportShare

Reviewed in the United States on February 16, 2026

Verified Purchase