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BackStopp™

Acoustic Speaker Insert

Absorb distortion-producing reflected waves and reduce sound transmitted through walls.

• Absorbs harmful reflected waves that cause speaker distortion.
• Helps balance mid-range response and "tighten" sound cavity acoustics.
• Reduces sound transmitted through back wall into others rooms.
• Adds 'R value insulation to BackBoxx™ installations.
• Effective on all open-back drivers.

Sound Absorption values for one pair of speakers:

Frequency (Hz) 125 250 500 1000 2000 4000
NRC/AVG .13 .37 .96 1.08 1.07 1.07 .85
Fire Safety: Cal 117
R-Value: Minimum 13 Rating