background image

2 CONTROLS & OPERATION

Tuner/Amp

ACOUSTI-Q

TUBE ACOUSTIC PREAMP/BLENDER

Created, Designed and Manufactured

by PreSonus Audio Electronics In The USA

Footswitch

-20dB Output

Effects Loop

Main Output

Tip = Output

Ring = Input

Sleeve = GND

Tip = Mute

Ring = Cut/Boost

Sleeve = GND

POWER

18 VAC

1

2

3

Cable Wiring Diagram for Input and Output XLR

2.2.1 OUTPUT

The Main Output (XLR) connector is balanced and operates at 0dB = 0dBu.

2.2.2 TUNER/AMP

The Tuner/Amp Output Phone Connector is unbalanced and operates at -20dB. 
As the label describes, it has been provided as a signal source for Tuners and for 
guitar amplier inputs. This output is unaffected by the Mute switch on the front 
panel or the Mute function on the optional footswitch.

10

Output Level

A sixteen segment LED meter has been provided to monitor the output level. It 
goes from 42dBu to +24dBu and meters the signal level at the Main output.

Cut/Boost

An LED labeled Cut/Boost is located directly above the Brilliance/Bass control 
on the top of the ACOUSTI-Q front panel. This LED is lighted when the optional 
Cut/Boost footswitch is engaged.

2.2 BACK PANEL

The back panel of the ACOUSTI-Q contains the input for the power supply and 
optional footswitch, the 20dB Tuner/Amp output, the insert for the Effects Loop 
and the Main Output (XLR)

PIN 1 = GND

PIN 2 = High (+)

PIN 3 = Low (-)

Содержание ACOUSTI-Q -

Страница 1: ...Copyright 2001 PreSonus Audio Electronics Inc ALL RIGHTS RESERVED ACOUSTI Q Tube Preampli er Blender USER S MANUAL 1 0 ...

Страница 2: ... 6 2 1 3 Equalizer 7 2 1 4 Master 9 2 1 5 Metering 9 2 2 Back Panel 10 2 2 1 Output 10 2 2 2 Tuner Amp 10 2 2 3 Effects Loop 11 3 Connections 12 3 1 Instrument Input Blender 12 3 2 Vacuum Tubes 12 3 2 1 Replacing The Vacuum Tube 12 3 3 Wiring Scenerios 15 4 Technical Speci cations 16 5 PreSonus Limited Warranties 18 TABLE OF CONTENTS i ...

Страница 3: ...product PreSonus Audio Electronics is committed to constant product improvement and believes the best way to accomplish this task is by listening to the experts on our gear our valued customers We appreciate the support you have shown us through the purchase of this product Please pay close attention to how you connect your ACOUSTI Q to your system Improper grounding is the most common cause of no...

Страница 4: ... the Master output This design applies the aural enhancement capabilities of the tube on the input while minimizing unwanted audio artifacts 12V Phantom Power The ACOUSTI Q has 12VDC Phantom power available to the Ring of the 1 4 TRS input When the Phantom power switch is engaged 12VDC power is supplied for use by mini condenser microphones installed in some acoustic instruments Use caution when e...

Страница 5: ...abeled Bass boosts or cuts 12dB 100Hz and below Master Section The Master section of the ACOUSTI Q contains a Mute switch and a dual concentric control for use in setting the level of the Main output and the level of the Cut Boost feature The Mute feature is provided for use in conjunction with an external tuner Engaging this switch mutes the Main output while allowing the signal to remain present...

Страница 6: ... provided to the RING of the input connector of the ACOUSTI Q for powering mini condenser microphones installed in acoustic instruments These microphones are typically utilized in conjunction with a transducer style pick up The 12VDC supplied by way of the RING portion of FREQ LEVEL 12dB 12V PHASE FREQ LEVEL 12dB BRILLIANCE BASS LEVEL CUT BOOST PEDAL 12dB MUTE INPUT POWER 42 36 30 24 18 12 6 3 0 3...

Страница 7: ...r hand favoring the pick up over the mini condenser mic will result in a sound that is brighter and punchier and will bring out the percussive qualities of the performance The Blender feature provides a palette of subtle tonal colors for instruments equipped with both a mini condenser mic and a pick up Feel free to paint your sound CONTROLS OPERATION 2 the TRS connector is designed to ful ll the p...

Страница 8: ...encies governed by this control are graduated incrementally from 92Hz inner knob rotated completely counter clockwise to 494Hz inner knob turned completely clockwise These frequencies are effec tive at controlling feedback because they correspond to the speed of the vibra tions of speci c musical notes ex 92Hz F that may resonate feedback inside an acoustic instrument such as a guitar The shape of...

Страница 9: ... the rst fret Continue fretting the lowest string moving up the neck one fret at a time until the resonant frequency is located While keeping the note on the guitar fretted turn the Boost Cut outer control counterclockwise about halfway Slowly rotate the Frequency control from the 92Hz position clockwise until the feedback is reduced Try to zero in on the feedback by very slowly advancing the freq...

Страница 10: ...ntric control is labeled Brilliance The frequencies of 8kHz and above can be increased or decreased by adjusting this knob The twelve o clock position is zero and no effect on the high frequencies is heard By rotating the Brilliance control clockwise from the twelve o clock 0 position the brighter more treble portion of the signal becomes more pronounced If the instrument seems dull and lifeless b...

Страница 11: ... the output Level of the unit s Main output The Level control adjusts from 80 fully counter clockwise to 20 completely clockwise which is the loudest position Unity zero occurs at the twelve o clock position The outer knob is labeled Cut Boost Footswitch and adjusts from 12 rotated fully counter clockwise to 12 completely clockwise at the loudest boost position Once again zero is at the twelve o c...

Страница 12: ...l source for Tuners and for guitar ampli er inputs This output is unaffected by the Mute switch on the front panel or the Mute function on the optional footswitch 10 Output Level A sixteen segment LED meter has been provided to monitor the output level It goes from 42dBu to 24dBu and meters the signal level at the Main output Cut Boost An LED labeled Cut Boost is located directly above the Brillia...

Страница 13: ...eated if the 1 4 jack is fully inserted To send a signal to both input channels of the sound card requires the 1 8 stereo plug to have the tip and ring connected to one another Tip Ring Sleeve Sleeve Ring Tip Cable Wiring Diagram for Effects Loop Output TRS Plug If the Main output of the ACOUSTI Q is to be used to feed a computer s sound card this can be done by using a cable with a female XLR con...

Страница 14: ...ey might provide 3 2 1 REPLACING THE VACUUM TUBE 1 Disconnect the ACOUSTIC Q from it s electrical outlet 2 Remove the six screws that attach the top of the unit s chassis The vacuum tube is mounted in a horizontal fashion in the middle of the ACOUSTI Q s body 3 Carefully remove the vacuum tube from it s receptacle Be sure to hold the socket in place while gently wiggling the vacuum tube out 4 Inse...

Страница 15: ...13 Mounting Diagram for the PreSonus Amp Stand Mount CONNECTIONS 3 ...

Страница 16: ...us Audio Electronics In The USA Tip Ring C Sleeve POWER 18 VAC Foots AMP FOOT PEDAL EFFECT 14 3 CONNECTIONS 3 3 WIRING SCENERIOS Foot Pedal Optional A TRS B TRS Amp C TS D TS Effects Loop E TRS F TS G TS Sound Card H TS I 1 8 Stereo Mixer J XLR Female K XLR Male Possible ACOUSTI Q Hook Up Scenerios ...

Страница 17: ...STI Q MP BLENDER anufactured In The USA 20dB Output Effects Loop Main Output Tip Output Ring Input Sleeve GND Tip Mute Ring Cut Boost Sleeve GND Footswitch AMP MIXER SOUND CARD EFFECTS PROCESSOR Possible ACOUSTI Q Hook Up Scenerios ...

Страница 18: ...rn 50K Ohms Sleeve Ground GND Performance THD Noise Unweighted 0 005 0dBu output 0 05 10dBu output 0 3 20dBu output Signal to Noise 90dB Ampli er Type Dual Servo Panel Controls 12VDC Phantom Power Ring Only Phase Invert Ring Only Tip Gain 0dB 40dB Ring Gain 0dB 40dB Notch Filter 12dB 92 494 Hz Equalizer 12dB 250Hz 5kHz Bass Bass 12dB 400Hz Brilliance 12dB 8kHz Mute Main Output Only Master Level 80...

Страница 19: ...the future without prior noti cation TECHNICAL SPECIFICATIONS 4 Power Supply Type Linear Supply Input 18 VAC 100mA Power 20 Watts Transformer External Wall Mount Physical Weight 7 lbs Size U Rack Dimensions 8 X 4 5 X 1 75 Mounting Proprietary Rack Adapter or Universal Rack Tray Insert Chassis Steel Front Panel Brushed Aluminum ...

Страница 20: ...ge due to abuse neglect alteration or attempted repair by unauthorized personnel and is limited to failures arising during normal use that are due to defects in material or workman ship in the product Any implied warranties including implied warranties of merchantability and tness for a particular purpose are limited in duration to the length of this limited warranty Some states do not allow limit...

Страница 21: ... in the country where purchased or to the PreSonus factory in the U S in the original packaging or a replacement supplied by PreSonus with all transportation cost and full insurance paid each way by the purchaser or owner All remedies and the measure of damages are limited to the above services It is possible that economic loss or injury to person or property may result from the failure of the pro...

Отзывы: