Designed as a low-end option in its Solid Bass family of earphones, Audio-Technica's new ATH-CKS55i ($80) reuses a familiar-looking housing to "provide overwhelming bass sound." Though it includes four sets of silicone rubber tips that help the earphones stay in your ear canals, ATH-CKS55i achieves its low-end performance by using large earbud housings, featuring twin air chambers that create additional bass resonance. Each earbud has an adjustable…
