BAFFLE DIMENSIONS:
Height: 75.6"
Top width: 17.75"
Base width: 17.75" - Sides~ 7.125"
Thickness: ~0.75" Square edges
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 '55'. 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").
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: ~0.75" Square edges
The Listening Room Measurements - Baffle: BG54 Chifon.
The Listening Room Measurements - Baffle: BG55 Chifon.
The Listening Room Measurements -
Two-Sided Baffles - Table of Contents.
Acoustic Line Source Research - Table of Contents.
