Heco Aleva GT Sub 322A - Manual (Page 9)

9
Level control (4)
This control is used to set the bass volume according to your preferences. Proceed as follows::
1. set the bass control of your amplifier into its centre (linear) position.
2. Important: set the level control to its left stop (lowest volume).
3. Now, play back some music and set the volume control of the amplifier to the desired level.
4. set the subwoofer level control to the desired bass level.
Cross-over frequency control (5)
used to set the upper limit of the subwoofer operating range. The cross-over frequency should be set
to 50 to 150 hz when the system is used in combination with shelf loudspeakers or 50 to 100 hz when
used with stand loudspeakers.
Bass EQ control (6)
The low bass range level at around 50 hz may be varied by +/- 3db with this control. Which makes
adapting low bass sounds to the room as well as to personal taste easy.
Phase switch (7)
In normal use the phase switch should be set to 0°. however, in rare cases it may be advantageous to
set the phase to 180° (e.g. if the subwoofer is far away from the front loudspeakers or in the event of
unfavourable acoustics in the room). Generally speaking: the setting where the lower base tone area has
a fuller sound is the correct one.
Fuse (10)
Only use a fuse with the parameters indicated inside the triangle next to the fuse holder, on the rear of
the amplifier.
MAIntEnAnCE
The surface is best cleaned with a mild household cleaner. On no account use furniture polish or similar
products.
SPECIFICAtIOnS
Configuration:
bass reflex, sidefire
Fitted with 30 cm long-stroke driver
Output power RMs/Max.: 180 / 320 watts
Frequency range: 20 – 150 hz
Cross-over frequency: 50 – 150 hz, adjustable
Dimensions (WxhxD): 290 x 500 x 464 mm
Accessories: mains cable
Subject to technical change.