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FUNCTIONS
D12S / D15S / D18S
1. Link Outputs
These are balanced XLR sockets connected in parallel to the
inputs. They allow you to link or daisy-chain another device,
such as an additional active speaker system, for extended sound
coverage.
2. INPUT
Connect audio units with line-level output, like mixers or
preamplifiers. These connections provide the input for the
subwoofer.
3. Crossover Frequency Control
This function lets you adjust the upper crossover frequency of the
low-pass filter. You can fine-tune the frequency range from 40
Hz to 250 Hz to match the subwoofer's performance with other
speakers.
4. HIGH PASS OUT
This provides a high- pass filtered line output in the frequency
range of 80 Hz to 18 kHz. It's used for connecting active
top speakers, ensuring that the subwoofer handles the low
frequencies, and the top speakers handle the mid and high
frequencies.
5. SIGNAL/LIMIT
This indicator serves as a signal input indicator, lighting up blue
when a signal is present and then turning red when the input
signal level is too high. The limiter function will then reduce the
signal level to protect the speakers. If the LED frequently lights up
red, it's a clear indication to reduce the volume of the input signal.
6. Power Indicator
This LED indicator shows whether the subwoofer is powered on
(ON) or not.
7. SUB LEVEL
Use this control to adjust the level or volume of the subwoofer to
match the desired sound output.
8. GROUND LIFT SELECTOR SWITCH (GND)
When engaged, this switch separates the signal ground from the
housing ground. It can help eliminate unwanted mains related
noise.
9. SHAPE
This switch allows you to enable or disable a bass boost, altering
the bass response to suit your preferences.
10. PHASE
This switch provides the option to change the phase of the
subwoofer from 0° to 180°. It's useful when multiple speakers
are operated in parallel, ensuring that they are in phase with
each other.
11. POWER SWITCH
This is the main power switch for the subwoofer. Switching it up
turns the subwoofer on, and switching it down turns it off. Please
ensure the level control is down before turning it on to avoid
sudden loud noises during startup.
12. IEC SOCKET WITH FUSE HOLDER
This is where you plug the IEC power cable into the subwoofer.
In case of a fuse burnout, it's crucial to ensure the unit is turned
off and disconnected from the AC outlet before replacing the
fuse to prevent the risk of fire and damage to the unit. This socket
includes a fuse holder for safety.
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