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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).

Содержание Powerhouse 300

Страница 1: ......

Страница 2: ...9 3 3 How to get the input sound through to the headphones 9 3 4 The equalisation section on the input channels 10 3 5 REV AUX and MON 10 3 6 The graphic equalisers 12 3 7 Tape record and playback so...

Страница 3: ...ctions 1 2 IMPORTANT AC POWER INFORMATION PLUG WIRING INFORMATION As the colours of the wires in the AC Power Lead of this apparatus may npt correspond with the coloured markings identifying the termi...

Страница 4: ...the selector round until the pointer is pointing to the correct voltage then press it back in You will have noticed a fuse while the selector was out This is the console s AC fuse It is a 20x5mm T2A...

Страница 5: ...with 16dB of boost cut at 2kHz 4c Low Frequency control is a shelving type with 16dB of boost cut at 60Hz 5 REV Turning this control clockwise sends the input channel signal to the 127 program DIGITAL...

Страница 6: ...y for each type effect selected The time is selected by using the SPECIAL TIME button in the same way as the TYPE button When SPECIAL has been selected the SPECIAL TIME button is used to select any of...

Страница 7: ...red Sleeve Ground Tip Signal These are the main outputs from the POWERHOUSE mixing console for connecting to an external amplifier P A system They allow a signal to leave the POWERHOUSE before the bui...

Страница 8: ...r the MON buss are routed to the PHONES socket 23 PHONES This is the output volume control for the headphones 24 PHONES socket For stereo headphones 0 25 stereo jack wired Sleeve Ground Ring Right Tip...

Страница 9: ...eaker systems Effects can also be connected here if required 4 OUTPUTS These XLRs are the amplifier outputs and connect directly to loudspeakers min impedance 4ohms 5 COOLING FAN This vent MUST NOT be...

Страница 10: ...ust this control until it reads about 20 on its scale The signal within the input channel has its level determined by this control 2 The CLIP indicator Check that this LED is not lit This LED will onl...

Страница 11: ...an EQ network that when mastered can make mediocre sounds good and good sounds excellent Practise is recommended 3 5 REV AUX MON The POWERHOUSE consoles have three controls on each input channel whic...

Страница 12: ...l For a mono effect use only the LEFT jack of the STEREO RETURN The other place the effect can be returned is a LINE input The effect return would then be treated like any other input signal and route...

Страница 13: ...n be individually sent via the GRAPHIC EQUALISERS to the left and right busses The TRIM FADER on each equaliser allows the signal level into the equaliser to be adjusted This is only required when exc...

Страница 14: ...L R MON button below the TO AMP level control must be released However more power may be required for the P A system in which case amplifiers may be connected to the LINE OUTS The built in power ampl...

Страница 15: ...alculations every second necessary to synthesise the many echoes found in natural reverberation The results of these calculations are then converted back to analogue sound The versatile digital reverb...

Страница 16: ...ROOM TYPES are slightly less smooth and are useful for a more intimate sound on vocals and guitar The PLATE TYPES are very smooth and slightly shrill ideal for vocals or percussion Selecting DARK simu...

Страница 17: ...TIME control 4 5 SPECIFICATIONS Frequency Response 20Hz to 10kHz 4 1dB Effect 11Hz to 25kHz 1dB Dry T H D 0 1 1kHz 0dBm effect Output Noise 71dBm DIN Audio 4dBm mode 82dBm DIN Audio 10dBV mode 98dBm...

Страница 18: ...RANGE MIC Gain Range 15 to 60dB LINE Gain Range 5 to 40dB SIGNAL TO NOISE RATIO MIC Input to Master Output 77dB ref to 0dBm output MIC Gain 50dB Output Faders at O CROSSTALK Input to Adjacent Input Be...

Страница 19: ...3dB 4Hz to 100kHz TOTAL HARMONIC DISTORTION At rated power output 1kHz test signal 0 02 INPUT IMPEDANCE 10kohm INPUT SENSITIVITY 0dBm RESIDUAL HUM NOISE 70dB SIGNAL TO NOISE RATIO Greater than 100dBm...

Страница 20: ...ound a short time later DRY A signal which has not been sent to an effect see also WET EFFECT A general term used to refer to an external piece of equipment which can be used to fix signals which soun...

Страница 21: ...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 bein...

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