Ashdown PIBASS - 240 User Manual

Page 3

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Ashdown Amplifiers reserve the right to change specifications without notice. E & O E. All contents © Ashdown 2013.

USER MANUAL

PiBASS

USER MANUAL

PiBASS

INPUT

A single input jack socket is Provided for your instrument. This is a high impedance input

designed to perfectly match the impedance of the pick-ups on a passive bass. It also has

sufficient headroom available to allow active basses to be used. Use the input gain control to

adjust for the sensitivity of your instrument.

ACTIVE

This enables an input pad for active instruments.

BRIGHT

The bright function is permanatly set to ‘Bright’ giving the tone a high end lift pre EQ. Pushed

in the ‘Bright’ button dulls the sound for a more vintage tone pre EQ.

E.Q.

The main EQ controls consist of a shelving, +/- 15dB BASS control, a variable frequency

+/- 15dB shelving TREBLE control with a variable range from 3.5kHz to 10kHz, and two semi

parametric +/- 15dB - MID controls, each with a 1 octave bandwidth covering frequencies

from 180Hz to 1.6kHz and 750Hz to 7.5kHz respectively for adjusting the LO-MID and HI-

MID sound components.

These controls work together as follows:- there are four slider controls used to boost or cut

each frequency range by up to 15dB. To the left of the LO-MID, HI-MID and TREBLE sliders

are rotary controls marked FREQ-HZ. These are used to select the frequency at which the

sliders boost or cut the signal.

These EQ facilities can be used in a number of ways – the BASS slider will boost and cut all

frequencies below 100Hz – the TREBLE slider will boost and cut the highest frequencies above

the range set by its FREQ-HZ control.

The effect of both the BASS and TREBLE sliders can be further modified by the setting of the

HI-MID and LO-MID controls, for instance if the HI-MID frequency is set to beyond 3.5kHz and

this frequency range boosted using the slider then this will add further to the high frequency

lift provided by the TREBLE control. Similarly the BASS will be affected if the LO-MID

frequency is set to its lowest range. This can be a useful way of further enhancing the upper

and lower frequencies or for making fine adjustments to these.

However where the LO-MID and HI-MID controls really start to perform their magic is

when their FREQ-EQ controls are set to somewhere within the centre of their ranges and

the selected frequencies either boosted or cut. This can produce some unique sound shapes

that are very useable. Experiment with this and see what you discover, remember that

sometimes cutting the signal at a particular centre frequency can produce just as useful

sounds as boosting. An example of this is the SHAPE facility that boosts the High and Low

frequencies and also introduces a Cut in the Mid frequencies. More is not always better

when it comes to sound sculpturing for bass.

OUTPUT

Use the output level control to adjust the playing volume of the amplifier.

HEADPHONES

A headphone jack socket is provided to allow stereo headphones to be plugged into the

amplifier for silent practice. This cuts out the main speaker when a jack plug is inserted.

DIRECT INJECT (D.I.)

A balanced D.I. Is provided on the rear panel XLR socket. This provides a post E.Q. Post

effects signal. The output signal from this XLR socket is set to a level and impedance suitable

for connecting directly into a balanced microphone input of a mixing desk for either direct

injection into the pa system or for recording. Also there is a ground lift on the DI to get rid

of any unwanted mains hum.

FUSED MAINS INLET SOCKET

This is for connection of the unit to your countries mains power supply. Please ensure that

the type and rating of mains fuse marked on the rear panel is used when this is replaced.

ON/OFF MAINS SWITCH - Using the mains cable supplied the amplifier may be connected

the to the correct voltage mains supply , Once this is done turn the power to the MiBass 2.0

on by using the rear panel ON/OFF switch. POWER ON is indicated by illumination of the

BLUE LINE Logo on the front of the amp.

SPEAKER OUTPUT

ONE SPEAKER OUTPUT is provided on SPEAKON/JACK connection socket that is able to

handle the high powers produced by these amplifiers. 8 Ohm Min Load.

FRONT PANEL:

BACK PANEL:

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