Replacement Woofer for NS-10M For decades, the NS-10M was the nearfield monitor of choice for countless engineers and producers; and since Yamaha discontinued it, aftermarket components have become less available and more expensive. If you have consigned a pair of these iconic speakers to your closet due to blown woofers, GearNuts has good news. Avantone Pro is making affordable, direct-replacement low-frequency drivers for the NS-10M! Drawing upon their decades of driver design, Avantone reverse engineered the original drivers, meticulously reproducing the components and updating the materials to comply with todays RoHS requirements.Physically and sonically identical The Avantone Pro AV10 MLF is physically and sonically identical to the original; its engineered with the same voicing for an exact match throughout the frequency range.No-hassle direct replacement The AV10 MLF is a no-hassle “bolt-in” direct replacement for the original NS-10M woofer, requiring no modifications to the cabinet in the installation process.Avantone Pro AV10