Battle of the $10 thrift store speaker! Which would you choose - Insignia NS -B2111 (kind of a KEF knockoff with a cult following), or the 1990s era Polk S4? : r/BudgetAudiophile
Insignia NS-B2111 - YouTube
Average Joe Audiophile: Insignia NS-SP213, Best Buy did something right... and cheap
Sound Advice: Budget bookshelf speakers provide a surprisingly rich sound
INSIGNIA スピーカー NS-B2111 美品です|PayPayフリマ
Insignia NS-B2111 Bookshelf Speakers For Sale - Canuck Audio Mart