Page 9
BasX A-400Z
6. AC Power Switch
Switches the main AC power to the A-400Z On and Off. When this switch is Off, no controls
operate (the A-400Z cannot be turned On from the front panel or by a trigger signal).
7. High Pass Filter Switch
The BasX A-400Z has a built-in high-pass (crossover) which can be enabled for use with a
subwoofer. When this switch is set to Full Range, the A-400Z operates normally. When this switch
is set to High Pass, the signal at the input of the A-400Z is passed through an 80 Hz 12 dB/octave
high-pass filter.
Note: The signal at the Low Level Unbalanced Outputs is always full-range and is NOT affected
by the setting of the High Pass Filter switch or the Master Volume control.
Note: When the A-400Z is used in a typical stereo installation the High Pass Filter switch is
normally set to Full Range. When the A-400Z is used in a system with a subwoofer, the High
Pass Filter switch is typically set to the High Pass position, applying an 80 Hz high-pass filter to
the signal provided to the main speakers by the A-400Z. The subwoofer or subwoofers are then
connected to the Low Level Unbalanced line level outputs, which provide a full-range signal,
and the controls on the subwoofer are used to match the frequency response and gain of the
subwoofer to those of the main speakers powered by the A-400Z.
8. Low Level Unbalanced (RCA) Outputs
These outputs provide a line level stereo signal which is a buffered copy of the input signal for
use with additional zone amplifiers or powered subwoofers. The signal present at the Line Level
Unbalanced Outputs is NOT affected by the settings of the Master Volume control or the High Pass
Filter switch.
9. IEC Power Cord Receptacle
The A-400Z can be powered by 115 VAC or 230 VAC at 50/60 Hz. The IEC power cord receptable
accepts a standard removable IEC AC power cable (a high-quality commercial power cable is
included).
