Heco Victa Sub 251A, Owner'S Manual/Warranty Document

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AV input (2)
Connect your receiver's low-level subwoofer output (sub-pre-out) to the subwoofer's AV input (see Fig.
3). You will require a mono-cinch cable for this (not supplied).
High-level inputs (1)
For connection to the high-level (speaker) outputs of the receiver/amplifier, refer to Fig. 2.
Level control (3)
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 (4)
Used to set the upper limit of the subwoofer operating range. The cross-over frequency should be set to
100 to 150 Hz when the system is used in combination with shelf loudspeakers or 50 to 100 Hz when
used with stand loudspeakers.
Fuse (9)
Only use a fuse with the parameters indicated inside the triangle next to the fuse holder, on the rear of
the amplifier.
SPECIFICATIONS
Configuration: bass reflex, frontfire
Fitted with 25 cm long-stroke driver
Output power RMS/Max.: 100 / 200 watts
Frequency range: 23 – 200 Hz
Cross-over frequency: 50 – 150 Hz, adjustable
Dimensions (WxHxD): 320 x 425 x 405 mm
Accessories: mains cable
Subject to technical change.