2.5 inch 70mm Full Range Speaker 4ohm 15W For Peerless TC7FD00-04 2PCS - AliExpress
Order the Peerless PLS-P830985 woofer - SoundImports
GHXAMP 2 INCH 4OHM Bluetooth Portable Speaker Full Range Neodymium Low Frequency LoudSpeaker For Peerless Speakers DIY 2PCS - Price history & Review | AliExpress Seller - GHXAMP Worldwide Store | Alitools.io
Peerless by Tymphany 830656 5-1/4" Paper Cone SDS Woofer - Walmart.com