On-Stage AP3500 Acoustical Wall Treatment 100845220 They featureLinkwitz-Riley 24dB per octave

They featureLinkwitz-Riley 24dB per octave filters

Internal or external 7200 RPM storage drive highly recommended

36" x 2: hook side for your pedals for secure

electronically balanced/unbalanced inputs and servo balanced/unbalanced outputs

On-Stage AP3500 Acoustical Wall Treatment 100845220 They featureLinkwitz-Riley 24dB per octaveOn Stage AP3500 Acoustical Wall Treatment On Stage Acoustic Panels are designed to reduce reflections and flutter echo in listening areas such as spaces for recording or rehearsal, music rooms, control rooms, and home theaters. Using these acoustic panels to minimize reflections from a room's hard surfaces helps keep sound enjoyable and clear, especially important for speech or vocals, and in public spaces like auditoriums and houses of worship.