Shure SE846. The best premium IEMs for guitarists. ... MEE Audio M6 Pro. The best entry-level IEMs for guitarists. ... Westone AM Pro X30. The best mid-range IEMs. ... Sennheiser IE 500 PRO. The best single-driver IEMs. ... Ultimate Ears UE 11 Pro. The best IEMs for bass. ... Audio-Technica ATH-E70. The best for home studio set-ups. ... 64 Audio A6t.