Related Manuals for PRESONUS ACOUSTI-Q
Summary of Contents for PRESONUS ACOUSTI-Q
- Page 1 ACOUSTI-Q Tube Preamplier/Blender USER’S MANUAL 1.0 Copyright © 2001, PreSonus Audio Electronics, Inc. ALL RIGHTS RESERVED...
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Page 2: Table Of Contents
2.2.2 Tuner/Amp ................10 2.2.3 Effects Loop ................11 Connections ................12 Instrument Input/Blender ............12 Vacuum Tubes ................12 3.2.1 Replacing The Vacuum Tube ............12 Wiring Scenerios ............... 15 Technical Specications ............16 PreSonus Limited Warranties ..........18... -
Page 3: Overview 1
Thank you for purchasing the PreSonus ACOUSTI-Q Tube Preamp/Blender. This preamp was designed using state of the art components to deliver crystal clear audio for an innite period of time. We believe the ACOUSTI-Q Tube Preamp/Blender to be an exceptional sounding unit and an exceptional value. -
Page 4: Features
Varying the signal’s phase may also be used to achieve an intentional ‘out-of-phase’ sound. Experiment! Notch Filter The ACOUSTI-Q has a Notch lter on the front panel for isolating and controlling low frequencies that may be prone to feedback. - Page 5 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.
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Page 6: Controls & Operation
Phantom Power Phantom Power (12 Volts) is 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... -
Page 7: Gain Controls/Blender
Ring Cable Wiring Diagram for Phantom Power TRS Plug 2.1.1 GAIN CONTROLS/BLENDER The ACOUSTI-Q Gain potentiometers give the user independent control over the amount of input signal from the Tip (Ch.1) and Ring (Ch.2). The Blender feature lets you change the characteristics of the ampli- 3(dB) ed sound of your instrument if it is equipped with both... -
Page 8: Notch Filter
Fender® Stratocaster™. It can be especially effective for rhythm guitar. 2.1.2 NOTCH FILTER The ACOUSTI-Q has been outtted with a Notch lter for controlling feedback without greatly altering the instrument’s sound. A Notch lter affects a very narrow frequency bandwidth with minimal overlap into adjacent frequencies. -
Page 9: Equalizer
The Notch lter can be effective at boosting a decient frequency, however, the Bass control of the Equalizer section of the ACOUSTI-Q should be the rst choice for increasing the low end of an instrument’s voice. - Page 10 2 CONTROLS & OPERATION boosted (fully clockwise) by as much as 12dB. As a rule, it is preferable to cut a frequency rather than to boost one. The ear is more sensitive to frequency boosts than it is to cuts and, therefore, the effect of boosting a frequency is much more pronounced.
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Page 11: Master
The dual concentric control of the Master section is used to set the output level of the ACOUSTI-Q. The inner knob adjusts 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. -
Page 12: Back Panel
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... -
Page 13: Effects Loop
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 connector to a 1/8”... -
Page 14: Connections
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. - Page 15 CONNECTIONS 3 Mounting Diagram for the PreSonus Amp/Stand Mount...
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Page 16: Wiring Scenerios
H = TS I = 1/8” Stereo Mixer J = XLR (Female) POWER K = XLR (Male) 18 VAC ACOUSTI-Q TUBE ACOUSTIC PREAMP/BLENDER Created, Designed and Manufactured by PreSonus Audio Electronics In The USA FOOT PEDAL MUTE CUT/BOOST Possible ACOUSTI-Q Hook-Up Scenerios... - Page 17 CONNECTIONS 3 MIXER Tip = Mute Tip = Output Ring = Cut/Boost Tuner/Amp Ring = Input Sleeve = GND Sleeve = GND Footswitch -20dB Output Effects Loop Main Output EFFECTS PROCESSOR SOUND CARD Possible ACOUSTI-Q Hook-Up Scenerios...
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Page 18: Technical Specifications
4 TECHNICAL SPECIFICATIONS Input 1⁄4” TRS Impedance, TIP..............10 Meg Ohms Impedance, Ring ......10 Meg Ohms (No +12V Phantom Power) 3.2K Ohms (With +12V Phantom Power) Output Main Output Impedance, XLR ......... 51 Ohms (Balanced) -20dB Tuner/Amp ............51 Ohms (Unbalanced) Sleeve = Ground ................ - Page 19 Mounting....... Proprietary Rack Adapter or Universal Rack Tray Insert Chassis ..................Steel Front Panel ..............Brushed Aluminum As a commitment to constant improvement, PreSonus reserves the right to change any specication stated herein at any time in the future without prior notication.
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Page 20: Presonus Limited Warranties
Some states do not allow limitations on how long an implied warranty lasts, so the above limitation may not apply to you. In no event will PreSonus be liable for incidental, consequential or other damages resulting from the breach of any express or... - Page 21 1) arising Out of materials or workmanship not provided or furnished by PreSonus, or 2) resulting from abnormal use of the product or use in violation of instructions, or 3) in products repaired or serviced by other than authorized PreSonus repair facilities, or 4) in products with removed or defaced serial numbers, or 5) in components or parts or products expressly warranted by another manufacturer.
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