The GlitchMod knowledge base

Shielded Speakers List

If you are using speakers near a CRT monitor, it is important that you use magnetically shielded ones that will prevent the magnets inside of the speakers from interfering with your image. Even if it is not immediately apparent that it is …

2 min readUpdated Oct 9, 2026

If you are using speakers near a CRT monitor, it is important that you use magnetically shielded ones that will prevent the magnets inside of the speakers from interfering with your image. Even if it is not immediately apparent that it is affecting your image, over time it can cause distortion in your image.

Note that there has been cases where there is a model revision that removes shielding. If you come across one of these models, please clarify that.

Under Development: dedicated area for Gauss Meter Testing

Verified Shielded

Model Speaker Count Verified By
Acoustic Audio AA5170 Home Theater 5.1 ?
Acoustic Audio by Goldwood - AA5400 5.1 ?
Altec Lansing MX5021 2.1 FirebrandX
Ascend Acoustics CBM-170 SE 2.0 RetroRGB
Behringer MS-16 2.0 ?
Bose Companion 2 (2004-2006) 2.0 Phoenix
Bose Companion 2 Series II (2006-2013) 2.0 Derf
Bose Companion 3 (2003-2006) 2.1 Phoenix
Bose Companion 3 Series II (2006-2016?) 2.1 Phoenix
Bose Companion 5 (2006-2015) 2.1 Phoenix
Bose Computer MusicMonitor (2007-2017) 2.0 Phoenix
Bose MediaMate (1997?-2006) 2.0 Phoenix
Bose RoomMate Computer monitor (1994-1999) 2.0 Phoenix
HTD Level THREE 5.1 MuNaught
Kanto Ora 4 0.1 RetroRGB
Infinity Primus P152 0.1 numbski
Klipsch R-41PM 2.0 ?
Klipsch R-51PM 2.0 ?
Micca COVO-S 2.0 TurnedToast
Polk Monitor 40 Series II 2.0 TurnedToast
RCA PRO-X44AV

(These are a newer revision of the Optimus Minimus 7, it appears the Minimus 7 was *NOT* shielded)

2.0 TurnedToast
Yamaha MSP5 Studio Monitor 2.0 RetroRGB

Verified Unshielded

Model Speaker Count Verified By
Bose Companion 2 Series III (2013-2023) 2.0 Phoenix
Bose Companion 20 (2011-2021) 2.0 Phoenix
ELAC Debut 2.0 B5.2 2.0 RetroRGB
ELAC Debut 2.0 B6.2 2.0 RetroRGB
Emotiva Airmotiv B1+ 2.0 TurnedToast
KEF Q550 (black or walnut) 4.0 RetroRGB
Micca MB42X (likely MB42 as well) 2.0 TurnedToast
Pioneer CS-K531 2.0 TurnedToast
Polk RT15i 2.0 TurnedToast