American Audio Mixer QFX Pro Manual
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24. CHANNEL BASS CONTROL - This knob is used to adjust the low frequency levels of a channel allowing for a maximum bass gain of 1 2 dB or maximum signal decrease of -30dB. Turning the knob in a counter-clockwise direction will decrease the amount of bass applied to a channel signal, turning the knob in a clockwise direction will increase the amount of bass applied to a channel signal. 25. FEATHER FADER PLUS CROSSFADER - This fader is used to blend the output signals of chan- nels one and two together. When the fader is in the full left position (channel 1), the output signal of channel one will be controlled by the master volume level. The same fundamentals will apply for chan - nel two. Sliding the fader from one position to another will vary the output signals of channels one and two respectively. When the crossfader is set in the center position, the output signals of both the channels one and channels two will be even. 26 . Q-START ON/OFF SWITCH - This function works in conjunction with a compatible American DJ® or American Audio ® “Q” Start CD player. When used with a compatible CD player, you can use the crossfader to start and stop a CD Player with the slide of the mixer’s CROSSFADER ( 25). The ON/OFF “Q" START SWITCH activates the FADER “Q" START feature. When in the ON position, the FADER “Q" START automatically returns the CD player to the preset CUE POINT. For example; Assuming you have two compatible American Audio™ CD players or a compatible dual CD player connected to channels one and two. When the Fader "Q" Start option is turned on, sliding the crossfader to the far left position will trigger playback on CD player 1. When the crossfader is pushed to the far right position, playback on CD player 2 will begin, and CD player 1 will return to the cue position. Refer to your American Audio CD player user manual for setting CUE POINTS. Turn the ON/OFF SWITCH to the OFF position to disengaged “Q” Start function and resume to a normal fader. 27 . CUE SELECTOR BUTTON - These buttons are used to activate a channels “CUE” mode. The red CUE LED will glow when a channels cue mode is activated. The Cue function sends a channels incoming signal to the headphones. The cue level is adjusted by the CUE LEVEL KNOB ( 19). Be sure the CUE MIXING KNOB (20) is set to the “CUE” position to hear a selected channel source. 28 . MIC 2 VOLUME CONTROL - This knob controls the output volume of MICROPHONE 2 (36). However, master volume is controlled by the MASTER VOLUME CONTROL (7). 29 . MIC 1 VOLUME CONTROL - This knob controls the output volume of MICROPHONE 1 (1). However, master volume is controlled by the MASTER VOLUME CONTROL (7). 30 . MICROPHONE BASS CONTROL - This knob is used to adjust the low frequency levels of the micro- phone with a maximum signal gain of 1 2 dB or maximum signal decrease of -30 dB. Turning the knob in a counter-clockwise direction will decrease the amount of bass applied to the microphone signal, turn - ing the knob in a clockwise direction will increase the amount of bass applied to microphone signal. 31 . MICROPHONE TREBLE CONTROL - This knob is used to adjust the treble levels of the Microphone with a maximum signal gain of 1 2 dB or maximum signal decrease of -30 dB. Turning the knob in a counter-clockwise direction will decrease the amount of treble applied to the microphone signal, turning the knob in a clockwis e direction will increase the amount of treble applied to microphone signal. 32 . MIC 1 ON/OFF BUTTON - This switches M IC 1 O n and Off. 33 . MIC 2 ON/OFF BUTTON - This switches M IC 2 O n and Off. ©American Audio® - www.americanaudio.us - Q-FXPRO Instruction Manual Page 11 Q-FXPRO CONTROLS AND FUNCTIONS cont.
©American Audio® - www.americanaudio.us - Q-FXPRO Instruction Manual Page 12 34. GND (GROUND TERMINAL) - Be sure to connect turntable ground leads to either or both of the two available ground terminals. This will reduce the humming and popping noises associated with magnetic phono cartridges. 35 . MICROPHONE 3 CONNECTOR - This jack is used to a connect a microphone to the mixer. Con - nect you microphone via this 1/4 inch (6.3mm) jack. This microphone will be controlled through the channel 3 fader. The channel 3 EQ will also effect the microphone output. Be sure to flip the SOURCE SELECTOR SWITCH (2) to the “MIC 3” position to operate this microphone’s input signal. 36 . MICROPHONE 2 CONNECTOR - This jack is used to a connect a microphone to the mixer. Connect you microphone via this 1/4 inch (6.3mm) jack. The volume output level for this microphone will be controlled by its own respective CHANNEL KNOB (28). 37 . MICROPHONE 4 CONNECTOR - This jack is used to a connect a microphone to the mixer. Con - nect you microphone via this 1/4 inch (6.3mm) jack. This microphone will be controlled through the channel 4 fader. The channel 4 EQ will also effect the microphone output. Be sure to flip the SOURCE SELECTOR SWITCH (2) to the “MIC 4” position to operate this microphone’s input signal. 38. CHANNEL LINE LEVEL SELECTOR SWITCHES - These switches are used to change the volt - age line levels of there respected Phono / Aux RCA inputs jacks. When connecting turntables with magnetic cartridges to these jacks be sure the corresponding switch is in the “PHONO” position, and when using line level input devices be sure this switch is in the “AUX” position. Always be sure main power is shut off before change the position of the Line Level Selector Switch. 39 . CHANNEL 1: PHONO 1/AUX 1 INPUT - The type of input must directly reflect the selected mode of the LINE LEVEL SELECTOR SWITCH (38). Turntables equipped with MM pickup cartridge (All DJ turntable use MM pick-up cartridges) may be connected to these jacks as long as the LINE LEVEL SELECTOR SWITCH (38) is in the “PHONO 1” position. CD players, Tape Decks and other line level instruments may only be connected to these jacks as long as the LINE LEVEL SELEC - TOR SWITCH (38) is in the “AUX 1” position. Never connect line level instruments (CD players, tape decks, etc.) to these jacks when the LINE LEVEL SELECTOR SWITCH (38) is in the “PHONO 1” posi - tion , THIS MAY SERIOUSLY DAMAGE YOUR MIXER! The red colored RCA jack represents the right channel input and the white represents the left channel input. Input volume will be controlled by the channel three fader . The channel SOURCE SELECTOR SWITCH (2) must be in the "Phono 1/Aux 1" position, to monitor any source connected to these jacks. REAR PANEL3434 4445485254433747464241384039383653 Q-FXPRO CONTROLS AND FUNCTIONS cont. 35 515049
©American Audio® - www.americanaudio.us - Q-FXPRO Instruction Manual Page 13 40. CHANNEL 1: LINE 1 INPUT JACKS - DO NOT CONNECT TURNTABLES TO THESE JACKS! CD players, Tape Decks and other line level instruments may be connected to these jacks. The red colored RCA jack represents the right channel input and the white represents the left channel input. Input volume will be controlled by channel three fader . The channel SOURCE SELECTOR SWITCH (2) must be in the "Line 1" position, to monitor any source connected to these jacks. 41 . CHANNEL 2: PHONO 2/AUX 2 INPUT - The type of input must directly reflect the selected mode of the LINE LEVEL SELECTOR SWITCH (38). Turntables equipped with MM pickup cartridge (All DJ turntable use MM pick-up cartridges) may be connected to these jacks as long as the LINE LEVEL SELECTOR SWITCH (38) is in the “PHONO 2” position. CD players, Tape Decks and other line level instruments may only be connected to these jacks as long as the LINE LEVEL SELEC - TOR SWITCH (38) is in the “AUX 2” position. Never connect line level instruments (CD players, tape decks, etc.) to these jacks when the LINE LEVEL SELECTOR SWITCH (38) is in the “PHONO 2” posi - tion , THIS MAY SERIOUSLY DAMAGE YOUR MIXER! The red colored RCA jack represents the right channel input and the white represents the left channel input. Input volume will be controlled by the channel three fader . The channel SOURCE SELECTOR SWITCH (2) must be in the "Phono 2/Aux 2" position, to monitor any source connected to these jacks. 42 . CHANNEL 2: LINE 2 INPUT JACKS - DO NOT CONNECT TURNTABLES TO THESE JACKS! CD players, Tape Decks and other line level instruments may be connected to these jacks. The red colored RCA jack represents the right channel input and the white represents the left channel input. Input volume will be controlled by channel three fader . The channel SOURCE SELECTOR SWITCH (2) must be in the "Line 2" position, to monitor any source connected to these jacks. 43. CHANNEL 3: AUX 3 INPUT - The type of input must directly reflect the selected mode of the LINE LEVEL SELECTOR SWITCH (38). CD players, Tape Decks and other line level instruments may only be connected to these jacks as long as the LINE LEVEL SELECTOR SWITCH (38) is in the “AUX 3” position. Never connect line level instruments (CD players, tape decks, etc.) to these jacks when the LINE LEVEL SELECTOR SWITCH (38) is in the “PHONO 3” position, THIS MAY SERIOUSLY DAMAGE YOUR MIXER! The red colored RCA jack represents the right channel input and the white represents the left channel input. Input volume will be controlled by the channel three fader . The channel SOURCE SELECTOR SWITCH (2) must be in the "Phono 3/Aux 3" position, to monitor any source connected to these jacks. 44 . CHANNEL 3: LINE 3 INPUT JACKS - DO NOT CONNECT TURNTABLES TO THESE JACKS! CD players, Tape Decks and other line level instruments may be connected to these jacks. The red colored RCA jack represents the right channel input and the white represents the left channel input. Input volume will be controlled by channel three fader . The channel SOURCE SELECTOR SWITCH (2) must be in the "Line 3" position, to monitor any source connected to these jacks. 45 . CHANNEL 4: LINE 4 INPUT JACKS - These Jacks are used for line level inputs. Connect CD players or Tape Decks to line level inputs. Line level musical instruments with stereo outputs such as Rhythm Machines or Samplers should also be connected to line level inputs. The red colored RCA jack represents the right channel input and the white represents the left channel input. Input volume will be controlled by the channel four fader. Do not connect turntables to these jacks, turntables should only be connected to “Phono” inputs. 46 . REC OUTPUT JACKS - This is a low current unbalanced output source designed for various tape and CD recorders. The Record Out (REC OUT) level is dictated by the CHANNEL FADER LEVEL (6) , it is not influenced by the MASTER VOLUME CONTROL (7). 47 . ZONE LEVEL OUTPUT - Use this separate output signal to drive a booth monitor or separate Q-FXPRO CONTROLS AND FUNCTIONS cont.
sound system. The output level for these jacks will be controlled by the ZONE VOLUME KNOB (22). These RCA jacks send a low current, unbalanced output signal. These jacks should only be used for shorter cable runs (under 15 feet) to signal processors or looping to another mixer. 48 . RCA MASTER OUTPUTS - The Master Output includes a pair XLR BALANCED JACKS (52) as well as a pair of RC A Unbalanced Jacks. The RCA jacks send a low current unbalanced output signal. These jacks should only be used for shorter cable runs to signal processors or looping to another mixer. For cable runs greater than 15 feet use the XLR BALANCED JACKS (52). 49 . PLAYER A CONTROL - This jack is used to control the “Q-Start” function between the mixer and a compatible American Audio ® or American DJ® CD Player. Using the mini plug included with your CD player, connect from the CD player controller out jack to this jack. Player A “Q-Start” functionallity will be controlled by the left side of the CROSSFADER (25). For more information on “Q-Start” functionallity refer to the user manual included with your CD player. Be sure to only use the mono tip mini plug included with your CD player to avoid damage to the mixer and/or the CD player. 50 . PLAYER B CONTROL - This jack is used to control the “Q-Start” function between the mixer and a compatible American Audio ® or American DJ® CD Player. Using the mini plug included with your CD player, connect from the CD player controller out jack to this jack. Player B “Q-Start” functionallity will be controlled by the right side of the CROSSFADER (25). For more information on “Q-Start” functionallity refer to the user manual included with your CD player. Be sure to only use the mono tip mini plug included with your CD player to avoid damage to the mixer and/or the CD player. 51 . TRIM OUTPUT - This knob is used to adjust the maximum voltage output level. Output voltage wil range from 0v ~ 9v. This function may be used to limit the maximum siganl output level. 52 . BALANCED XLR MASTER OUTPUTS JACKS - The Master Output includes a pair of XLR Balanced jacks as well as a pair of RCA UNBALANCED JACKS (48) . The 3-pin XLR jacks send a high current balanced output signal. These jacks should be used when you will be driving an amp or other audio equipment with a balanced input, or whenever you will be running a signal line greater than 15 feet. Always, use these jacks whenever possible. 53 . AC CONNECTION - This connector is used to supply main power to the unit via the included detachable power cord. The power connection uses an I.E.C. type connector, use only the supplied, polarized AC power cord. Use only a power cord that matches this type of connection. Be sure to only c onnect this unit to a power outlet that matches the printed power label on the unit . Never use a power cord when the ground prong has been removed or broken off . The ground prong is used to reduce the risk of electrical shock in case of an electrical short. This cord is designed to fit in one direction only. Do not attempt to force a cord if it does not fit, be sure the cord is being inserted properly. 54 . AC VOLTAGE SELECTOR - This switch is used to change the operating voltage. Operating voltage can be toggled between 115v or 230v/50~60Hz. Be sure the selector is set to the proper voltage for your area before attempting to operate the unit. Always be sure main power is shut off before change the position of the Voltage Selector Switch. ©American Audio® - www.americanaudio.us - Q-FXPRO Instruction Manual Page 14 Q-FXPRO CONTROLS AND FUNCTIONS cont.
©American Audio® - www.americanaudio.us - Q-FXPRO Instruction Manual Page 15 Q-FXPRO DSP EFFECT CONTROLS AND FUNCTIONS 58575655 55. EFFECTS INDICATOR - When any of the eight effects are in use, these indicators will glow to match any of the eight effects that may be functioning. 56 . DEPTH FEEDBACK DISPLAY - The Depth Feedback digital display will indicate the parameter ratio percentage. Turning the DEPTH FEEDBACK KNOB (12) in a clockwise direction will increase your ratio percentage. Turning the knob in a counter-clockwise direction will decrease the ratio percent - age. 57 . TIME ARRAY DISPLAY - This display will signify the pitch percentage (speed). Any adjustments will be based on this default setting. Turning the knob in a clockwise direction will increase your pitch. Turning the knob in a counter-clockwise direction will decrease the pitch. 58 . BPM (BEATS PER MINUTE) DISPLAY - This meter will display the master output BPMs.
©American Audio® - www.americanaudio.us - Q-FXPRO Instruction Manual Page 16 Q-FXPRO TYPICAL MIXER SET-UP This image details a typical DJ Set Up consisting of a microphone, turn- tables, CD players, and a tape deck. Note: Turntables can only be connected to the PHONO LEVEL RCA JACKS. Be sure the LINE LEVEL SELECTOR SWITCHES are in the "PHONO" position when using turntables. 0023 000700080006000500070001000200040003 000700080006000500070001000200040003
©American Audio® - www.americanaudio.us - Q-FXPRO Instruction Manual Page 17 Q-FXPRO TYPICAL MIXER SET-UP Speaker Cables Balanced XLR male to XLR female Cables C A S S E T T E D E C K American Audio V4001™ Typical Balanced Output Set-up This image details a typical stereo output layout. Note the use of the Balanced XLR Jacks on both the mixer and the amplifier. Always use the balanced output jacks whenever possible. The balanced output jacks should always be used for cable runs in excess of 15 feet. Using the balanced jacks will ensure a clean signal through out the entire audio system. RCA to RCA Patch Cables
©American Audio® - www.americanaudio.us - Q-FXPRO Instruction Manual Page 18 Due to fog residue, smoke, and dust, cleaning the mixer should be carried out periodically to residue build up. 1. Use normal glass cleaner and a soft cloth to wipe down the outside casing. 2. Use a cleaner specially designed for electronics to spray in and around the knobs and switch. This will reduce small particle built up that can effect the proper operation of the mixer. 3. Cleaning should be carried out every 30-60 days to prevent heavy built up. 4. Always be sure to dry all parts completely before plugging the mixer in. Cleaning frequency depends on the environment in which the mixer operates (i.e. smoke, fog residue, dust, dew). The crossfader is “Hot Swapable” which means it may be replaced at any time, even when power is applied. Only replace with American Audio Part Feather Fader Plus. Replacing with any other model fader may seriously damage your mixer. Replacing the Crossfader: 1. Disconnect the mixers main power supply 2. Using a number two Phillips screw driver, unscrew the each of the stainless steel retain screws that hold the crossfader in place. 3. Gently remove the crossfader from its seated position. You may need to wiggle the crossfader slightly to remove it. 4. After removing the crossfader, disconnect the ribbon cable that attaches the crossfader to the PC board. Grasp the crossfader by its base and pull the ribbon cable by its connector not the actual cables. The connector is designed to only fit one way, so don’t worry about the connec tors orientation. 5. Connect the new crossfader to the ribbon cable and replace in reverse order. Q-FXPRO CLEANING Q-FXPRO CROSS FADER REPLACEMENT
©American Audio® - www.americanaudio.us - Q-FXPRO Instruction Manual Page 19 Q-FXPRO TROUBLESHOOTING Trouble Shooting: Listed below are common problems you may encounter, and solutions. There is no power to the unit: Be sure you have connected the power cord to a correct wall outlet. There is little or no sound: 1. Check the input selector switch. Make sure it is set to the device that is currently playing. 2. Check to see if the connection cables are connected properly. 3. Check the Trim Output level control on the rear panel, make sure it is not set to low. The sound is distorted: 1. Check the Trim Output level control on the rear panel, make sure it is not set to high. 2. Make sure that the Gain level control is not set to high. Crossfader is not working: Check and see if any channels have been assigned to the crossfader. Effects are not working: 1. Check to see if the effects have been activated. Activate them by pressing the “FX ON” button. 2. Make sure a channel has been selected in which to apply effects to. Cannot measure BPM, or measured BPMs seem incorrect: Sometimes the BPM cannot be measured, depending on the music. If this happens, you will have to set the BPM manually, by using the TAP button (15). See TAP button (15) on page 10.
©American Audio® - www.americanaudio.us - Q-FXPRO Instruction Manual Page 20 1-YEAR LIMITED WARRANTY A. American Audio ® hereby warrants, to the original purchaser, American Audio® products to be free of manufacturing defects in material and workmanship for a period of 1 Year (365 days) from the date of purchase. This warranty shall be valid only if the product is purchased within the United States of America, including possessions and territories. It is the owner’s responsibility to establish the date and place of purchase by acceptable evidence, at the time service is sought. B. For warranty service, send the product only to the American Audio ® factory. All shipping charges must be pre-paid. If the requested repairs or service (including parts replacement) are within the terms of this warranty, American Audio ® will pay return shipping charges only to a designated point within the United States. If the entire instrument is sent, it must be shipped in its original package. No acces - sories should be shipped with the product. If any accessories are shipped with the product, American Audio® shall have no liability whatsoever for loss of or damage to any such accessories, nor for the safe return thereof. C. This warranty is void if the serial number has been altered or removed; if the product is modified in any manner which American Audio ® concludes, after inspection, affects the reliability of the product; if the product has been repaired or serviced by anyone other than the American Audio ® factory unless prior written authorization was issued to purchaser by American Audio ®; if the product is damaged because not properly maintained as set forth in the instruction manual. D. This is not a service contract, and this warranty does not include maintenance, cleaning or peri - odic check-up. During the period specified above, American Audio ® will replace defective parts at its expense, and will absorb all expenses for warranty service and repair labor by reason of defects in material or workmanship. The sole responsibility of American Audio ® under this warranty shall be limited to the repair of the product, or replacement thereof, including parts, at the sole discretion of American Audio ®. All products covered by this warranty were manufactured after January 1, 1990, and bear identifying marks to that effect. E. American Audio ® reserves the right to make changes in design and/or improvements upon its prod- ucts without any obligation to include these changes in any products theretofore manufactured. F. No warranty, whether expressed or implied, is given or made with respect to any accessory sup - plied with products described above. Except to the extent prohibited by applicable law, all implied warranties made by American Audio ® in connection with this product, including warranties of mer- chantability or fitness, are limited in duration to the warranty period set forth above. And no warran - ties, whether expressed or implied, including warranties of merchantability or fitness, shall apply to this product after said period has expired. The consumer’s and or Dealer’s sole remedy shall be such repair or replacement as is expressly provided above; and under no circumstances shall American Audio® be liable for any loss or damage, direct or consequential, arising out of the use of, or inability to use, this product. G. This warranty is the only written warranty applicable to American Audio ® Products and supersedes all prior warranties and written descriptions of warranty terms and conditions her etofore published. The Q-FXPRO carries a one year limited warranty. We recommend you fill out the enclosed warranty card to validate your purchase. All returned service items whether under warranty or not, must be freight pre-paid and accompany a R.A. (return authorization) number. If the mixer is under warranty, you must provide a proof of purchase invoice. You may obtain a R.A. number by contacting our customer support team on our toll free number. Please contact American Audio® customer support at (800) 322-6337 for a R.A. number. All package not displaying a R.A. number on the outside of the package will be returned to the shipper. Q-FXPRO WARRANTY