O W N E R ’ S M A N U A L
AB-800 SUBWOOFER
10
Phase
▪
When adjusting the phase, use familiar music with strong bass content. The effect of the phase
adjustment is most noticeable at the crossover frequency.
Begin with the phase at 0 degrees. Switch the phase between 0 and 180 degrees and listen to the
balance and strength of the mid-bass frequencies. Select the phase position where the bass sounds
the most natural. If the bass becomes overly strong in one position it may be necessary to reduce the
subwoofer’s cut-off frequency and/or input level a little. The effect of the phase adjustment can be subtle
and it may be necessary to take some time to become acquainted with the sound of the system before
changing the setting.
Power Mode Switch
▪
The AB-800 contains a circuit that automatically powers up the amplifier when a signal is detected. The
same circuit also places the AB-800 into standby mode when no signal has been detected for a period of
approximately 20 minutes. This signal sensing circuit can be bypassed by switching the Auto switch to
the ON position if it is preferable to control the AB-800’s power with a remotely operated power source.
Placing the switch in the Standby mode turns the subwoofer off.
Frequency Response
: ..................... 28Hz – 200Hz (System Response)
Crossover Frequency
: .................... 50Hz – 150Hz (Low-pass filter with bypass position)
Phase Adjustment
: ......................... 0 – 180 degrees (2-position switch)
Amplifier Output Power
: ................ 110 watts RMS, with thermal and clipping limiters
Audio Inputs
: .................................. Summing stereo line level (RCA x2)
LFE (RCA shared with Right input connector)
Input Impedance
: .......................... Line Level – 20k ohms, Unbalanced
Input Power
: ................................. 100V – 240V 50-60Hz AC
Input Power Connection
: ............... IEC C8 receptacle
Power Modes
: ................................. Auto signal sensing, always on, Standby
Auto Off Delay
: ............................... ~10 minutes
Dimensions
:
(without feet) ................................... 13
"
W x 13
"
H x 13
"
D, (330W x 330H x 330D)mm
Weight
: ........................................... 22 lbs (10 kg)
Shipping Dimensions
: .................... 17
"
W x 17.3
"
H x 17
"
D, (430W x 440H x 430D)mm
Shipping Weight
: ............................ 26 lbs (11.8 kg)
S E T U P (continued)
Fine Tuning the Controls (continued)
S P E C I F I C A T I O N S
