spn series
6
6. spn6a / spn8a connection panel (fig. 2)
1. Input COMBO connector: according to the LINE/MIC
selector position (see point 3), you can connect line or
microphone signals. For the connection use BALANCED
signal cables with XLR or JACK connectors.
2. XLR-M connector producing the same signal that is
connected to the INPUT COMBO (LINK): it can be use to
daisy-chain several speakers together.
3. LINE/MIC selector: use this button to select the input
sensitivity of the built-in amplifier. In the LINE position
(button up) the input accepts line signals from equipment
with high-level outputs. In the MIC position (button down) the
input accepts the signal coming from a dynamic microphone
connected directly to the speaker without the need of an
external mixer.
Nota: use a sharp object (such as a pen or a small
screw-driver) to push this button. DO NOT CONNECT LINE
SIGNALS WHEN THE SELECTOR IS IN THE MIC POSITION:
the signal's high level could damage the amplifiers and
the speakers.
4. Level control of the signal sent to the built-in amplifiers:
the nominal sensitivity is different according to the LINE/MIC
selector's position (LINE +4dB / MIC -40dB).
5. PRESET selector: the 4 PRESETS available in spn6a
and spn8a have been prepared in order to provide the
loudspeaker systems with different acoustical responses
suitable for different applications, different kind of signal
and different tastes. Here below you can find a short
description that can help you in the choice.
- MUSIC: this PRESET has been prepared to provide the
best frequency response for the reproduction of recorded
music and is suitable for DJs, installations in public venues
and multimedia applications.
- LIVE: this PRESET provides a flat response, suitable for
LIVE setups and for any applications requiring the ‘natural’
response of the loudspeaker system.
- MONITOR: this is the PRESET to be chosen when the
spn are used as stage monitors. The frequency response
has been adjusted in order to compensate the reflections
from the floor, while the mid-high EQ provides a clear and
intelligible sound.
- VOICE: this PRESET can be used when you connect a
dynamic microphone directly to the speaker's input. The
equalization contained in this PRESET allows to get from the
microphone a brilliant and intelligible response even without
using a mixer.
6. LIMIT LED: it indicates when the CLIP LIMITER starts
operating following the detection of a too high signal
level being fed to the amplifiers. In this case, the LIMITER
lowers the signal level to avoid damage to the enclosure
components and amplifier clipping.
7. Control for separating the electrical earth from that of the
chassis: under certain conditions, the SHIELD selector can
enable to break earth loops and to eliminate hum or other
annoying noises.
8. This LED glows when the unit is switched ON.
Note: it is normal for this LED keep glowing for a few
seconds when the units is switched off.
9. ON/OFF switch.
10. Mains cable (spn6a) / Power supply socket (spn8a).
7. spn12sa connection panel (fig. 3)
1. STEREO XLR-F + JACK sockets connected in parallel for
the signal input and linking.
2. Level control of the signal sent to the built-in amplifier:
the nominal sensitivity (knob fully rotated clock-wise) is
+4dB.
3. PRESET selector: the 4 PRESETS available in the
spn12sa have been prepared in order to provide an
optimal coupling of the sub-woofer with different satellites.
Therefore, they include different parameters for the
crossover filters, the EQ filters and the level of the signal
sent to the satellites.
- spn6x2: PRESET for the use of one sub-woofer with
two spn6a (see fig. 6).
- spn6x4: PRESET for the use of one sub-woofer with
four spn6a (see fig. 7).
- spn8x1: PRESET for the use of one sub-woofer with
one spn8a. In this configuration, a stereo system
includes 1 sub and 1 satellite for each side (see fig. 10).
- spn8x2: PRESET for the use of one sub-woofer with
two spn8a (see fig. 9).
4. STEREO XLR-M + JACK sockets connected in parallel for
the connection of the satellites: they send out the signal
filtered by the built-in STEREO crossover and must be
connected to the satellite's inputs.
5. Control for separating the electrical earth from that of the
chassis: under certain conditions, the SHIELD selector can
enable to break earth loops and to eliminate hum or other
annoying noises.
6. ON/OFF switch.
7. Power supply socket.
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