BAFFLE DIMENSIONS:
Height: 75.6"
Top width: 17.75"
Base width: 17.75" - Sides~ 7.125"
Thickness: ~1.56" Square edges, wood/foam
The Impulse response, Phase response and Frequency response shown on this page are from the RD-75 driver whose serial number ends in the digits '54'. The measurements were taken at distance of 2 meters from the baffle, and 1 meter from the floor. The baffle in the photo at left is not tilted, it is an artifact of the photo. The baffle boards are standard U.S. sized 1" x 8" Clear Douglas Fir (actual size ~ 0.75" x 7.125"). 'Chifon' acoustic damping is used; and, the baffle is of low-resonance composite construction 1.56" thick.
Details of the measurement process are to be found in the Measurements
section. The required passive notch filter was in circuit with the driver
during the measurement. Additionally, a non-standard slope 2nd order
(12dB/oct) active filter set to a -3dB point of 150Hz was also in circuit.
The rising phase response below 1000Hz reflects this fact.
BAFFLE DIMENSIONS:
Height: 75.6"
Top width: 17.75"
Base width: 17.75" - Sides~ 7.125"
Thickness: ~1.56" Square edges, wood/foam
Comparison: BG55 & BG55 Chifon - No Smoothing.
Baffle: FILL.
Table of Contents - Two-Sided Baffles.
Table of Contents - Main Menu.
