Powerhouse 300
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GAIN
The amount of amplification or increase in a signal's level.
GROUND
Earth or screen of a cable when referring to connecting leads.
GRAPHIC EQUALISER
A device which, due to its many faders, can adjust many specific frequencies in the
FREQUENCY SPECTRUM. The term graphic arises from the fact that when adjusted,
the fader settings "graphically" represent the adjustments to the frequency spectrum.
HOT
The positive phase of a signal. With 2 signal wires, one is positive (hot), and the other
is negative (cold).
Hz
Measurement of frequency (Hertz). 1Hz = 1 cycle per second.
kHz
Measurement of frequency expressed to the power of 1000. 1kHz = 1000 cycles per
second.
kohm
Measurement of electrical resistance expressed to the power of1000. 1kohm =
1000ohms.
LINE LEVEL
A high level signal suitable for feeding LINE inputs, STEREO RETURNS, and the
RETURN of INSERT POINTS. The standard level is -10dBV.
LOW LEVEL
A signal which requires considerable amplification to feed a channel. MIC INPUT
XLRs on POWERHOUSE are designed for low-level signals, typically generated by
microphones and D.I. boxes.
MONITOR
This term often also refers to the FOLDBACK speakers on stage - as well as "THE
MONITORS".
NOISE GATE
A device which can remove the noise content from a signal, or be used to remove low
level noise present when an instrument is not being played.
Ohm
Measurement of electrical resistance.
PAN
A PAN control places a signal across two stereo busses (left and right). Turning it to
the left will send all the signal to the left buss, and by turning it to the right, all the
signal will be sent to the right buss. If the PAN is at its centre (0) position, an equal
amount of signal is sent to both sides, and the signal's "image" in the stereo picture
will appear to be central.
POST
Post means AFTER a part of the console - Post-fader, post-EQ etc. Post on its own
generally refers to post-fader.
PRE
Pre means BEFORE a part of the console - pre-fader, pre- EQ etc. Pre on its own
generally refers to pre-fader.
DIGITAL REVERB
An essential effect for adding "ambience" to a sound. Reverberation gives the
impression that the instruments are being played in an enclosed space. The built-in
stereo DIGITAL REVERB in the POWERHOUSE console provides 127 different
reverb programs, which can emulate room sizes and create special effects.
SIGNAL TO NOISE RATIO
The ratio between the level of signal and the level of unwanted noise.
WET
A signal which has been processed by an EFFECT (see also DRY).
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