Instrukcja obsługi Radial Engineering StageBug SB-4

Radial Engineering Niesklasyfikowane StageBug SB-4

Przeczytaj poniżej 📖 instrukcję obsługi w języku polskim dla Radial Engineering StageBug SB-4 (2 stron) w kategorii Niesklasyfikowane. Ta instrukcja była pomocna dla 2 osób i została oceniona przez 2 użytkowników na średnio 4.5 gwiazdek

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To view the 3-year transferable warranty details and
product specifications please visit www.radialeng.com
StageBug™ SB-4 piezo optimized direct box
USER GUIDE
+ =
AB
Inverting the phase of the floor monitor (A) in relation to the
stage amp turns the feedback hotspot into a null.
+ =
AB
In-phase frequencies from the floor monitor (A) and the stage
amp (B) combine and create a feedback hotspot.
AB
Phantom LED
Thank you for purchasing your very own StageBug SB-4 Piezo direct box! We are excited
about producing a personal DI that is so small, it can actually fit inside a violin case! With
an SB-4 in hand, you can be ‘at the ready’ anytime you need to connect to a PA or
recording system. Although the SB-4 Piezo is designed to be plug & play easy to use,
please take a minute to read this short manual. It will give you insight on how to best use
your Radial direct box and get the most out of it.
OVERVIEW
The StageBug SB-4 is an active direct box that has been optimized for use with acoustic
instruments that commonly employ passive piezo transducers like a violin, mandolin, cello
and upright bass. Part of the magic is the ultra-high input impedance that tames piezo
transducers by smoothing out their response. This warms up the tone, eliminates squawk
and does away with the peaks that can make piezo equipped instruments sound
unpleasant. The rest is of course the magic that is built into every Radial DI box! With the
SB-4, you do not need a preamp in between the pickup and the PA. Just plug in and play!
CONNECTING TO THE PA SYSTEM
Before making connections, always turn audio levels down or the PA off. This will help
eliminate turn-on transients that can damage more sensitive components like tweeters.
Connect your instrument to the SB-4 input using a standard ¼” instrument cable. The SB-4
is designed to capture the sound right from the pickup without requiring an instrument
preamp in between. In fact, you will find the SB-4 to produce a much warmer and richer
tone than when using most instrument preamps. Simply connect to the PA system’s
microphone input using a standard XLR cable and then set the levels as needed.
USING THE FILTER
When using acoustic instruments on a live stage, the low frequencies generated by the PA
system can often cause the top of the instrument to resonate and create feedback. This is
all the more acute when using a piezo transducer affixed to the top or bridge. The
StageBug SB-4 is equipped with a high-pass (low-cut) filter that gently reduces the low
frequency content and eliminates the resonance. This not only solves the feedback
problem, but also helps clean up the mix for a more natural sounding performance.
USING THE 180° POLARITY REVERSE
Sometimes the sound from the PA system and reverberant field in the room will combine
to create hot-spots on stage. These hot spots are known as room modes and form when
two ‘like’ frequencies combine at a certain location on stage. When the two frequencies
are in phase this causes them to amplify which in turn, can cause resonant feedback.
Reversing the phase can often reduce the feedback by electronically moving the problem out
of the way. To use, make sure you are standing where you intend to perform. Have someone
reverse the polarity while you are playing to find the setting that works best. Keep in mind that
since each venue is a different size, the phase issues will be different. Adjust to suit.
RECORDING DIRECT WITH THE SB-4
Using a direct box to match the impedance will produce a warmer more natural tone
versus plugging the instrument directly into the recording system. The StageBug SB-4 is
well suited for this as it both balances the signal and matches the impedance
simultaneously. Simply connect the SB-4’s output to the mic input on your recording
system. Top engineers will often combine the sound of a direct recording with a mic and
blend them to suit. You will find the SB-4 will work very well with piezo equipped acoustic
guitars and other instruments too!
As an active direct box, the SB-4 requires 48V phantom power from the console to make
it work. Phantom power is a standard feature that is readily available on all consoles and
must be turned on. Once activated, the LED on the SB-4 will illuminate to let you know that
it is powered and ready for use.
ADDING A TUNER OR STAGE AMPLIFIER
The SB-4 is equipped with an AUX output that lets you plug in a tuner for quick
adjustments on stage. The AUX output can also be used to feed a stage amplifier if you so
desire or a separate monitoring system. This lets you create a comfortable sound on stage
that is completely unaffected by the PA system.
USING THE GROUND LIFT
Sometimes when connecting to both the PA and your stage amplifier via the SB-4, you can
encounter hum and buzz caused by a ground loop. If you encounter noise, try using the
side-access GND LIFT switch. The switch is recessed to prevent hitting it accidentally. Use
a small screwdriver or paper clip to push in the switch. If noise persists, connect your stage
amp’s power cable to the same AC outlet that is feeding the PA using a power bar. This
brings all of the electrical grounds together and often helps to eliminate ground loops.

Specyfikacje produktu

Marka: Radial Engineering
Kategoria: Niesklasyfikowane
Model: StageBug SB-4

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