GR-Research

new! magnepan 3.7i upgrade kit (pair) 2026 revision

magnepan “mini” upgrade kit (pair)

jbl l-112 upgrade kit

polk l400 upgrade kit (single)

kef r3 meta

av123 x-cs “encore” kit

yamaha nx-e100 upgrade kit (pair)

magnepan 2.7i upgrade

sony sscs8 center upgrade kit (single)

order allie

48×24 diffusion panel (set)

mordant short festival 3

ic8 rca interconnects (pair)

dynaudio confidence upgrade kit

verum 2 headphones

polk signature xt20

polk signature es20

order maddie

d27sn tweeter

klipsch rc-62 ii upgrade kit