Check the listing for details. Replacement Diaphragm RCF NX15-SMA Speakers for Drivers 8 Ω 44.4mm. Condition: New. Listed at 39.99 USD. This Is A Brand NEW AFTERMARKET Replacement DiaphragmFor RCF NX15-SMA ART710, ART712A Mk1, ART712 Mk2, ART715A, Mk1, & Mk2 Speaker Cabinets.Also For RCF ND350 Diaphragm (8 Ohm) P/N 15420035 For ND350, CD350 & CD400 Driver. Do Not Confuse This Diaphragm With RCF N350 It's Not The Same. Please Look And Confirm The Diaphragm You Are Ordering Matches The Pictures Above & The Specs Below. Specs:Voice Coil Diameter :44.4mm, 1.75"Impedance : 8 OhmDome Material : PolyesterWe Carry A Full Line Of RCF, 18 Sound, Celestion & Eminence Speakers & DriversIf You're Looking A Particular Model And You Don't See It Here Please Send Us A Message FREE SHIPPING ONLY In the Lower 48 StatesMost Orders Placed Before 3PM and Paid thru' PayPal Are Shipped The Same Day; Monday to Friday