User manual FISHMAN LOUDBOX PRO

[. . . ] Owner's Manual Read Me! Take a few minutes to read through this manual before you power-up the Loudbox Pro. To jump in immediately, start with the Important Safety Instructions and the Getting Started sections. While this information will get you on your way, it is not considered a substitute for reading the entire manual. Read Me! 11. Use only with a cart, stand, tripod, bracket or table specified by the manufacturer, or sold with the apparatus. [. . . ] With the knob set at 12 o'clock, the control is effectively out of the circuit. hannel 1 Gain Low Mid High Brilliance A Fee Clip Loudbox Pro TM Off Anti-Feedback A fixed-level, variable-frequency notch filter -14dB @ 20 - 400Hz. If you encounter low-frequency feedback, sweep this control to isolate and eliminate it. Many guitars will benefit with the Anti-Feedback knob set at about 11 o'clock. The Anti-Feedback filter is off at the 7 o'clock position. Gain Low Mid High Brilliance ip Anti Feedback Phase Loudbox Pro TM Off Phase Use the phase switch in conjunction with the Anti-Feedback filter to eliminate acoustic feedback. Gain Low Mid High Brilliance Anti Feedback Phase oudbox Pro TM Off 5 About Acoustic Feedback Feedback usually occurs in the lowest octave of your instrument, generally with two notes about a half step apart. Like blowing air across a bottle, the lower type of feedback (cavity resonance) starts when the sound pressure coming out of the speakers excites the resonant air chamber inside your instrument. We have found that it is effective to tune out an instrument's cavity resonance feedback with the Anti-Feedback (notch filter) in the Loudbox. For acoustic guitar this occurs at G# on the low E-string, or at about 100Hz. Turn the Anti-Feedback knob to about 11 o'clock to dial out this resonance. Note that the circuit can be effectively defeated by moving the dial to the OFF (7 o'clock ) position. The higher range of feedback (top resonance) usually starts about a half or whole step above cavity resonance of the instrument. Top resonance feedback happens when the sound pressure coming off the speakers excites the resonant frequency of the soundboard of your instrument. Push the Phase switch in and out until you find the position that subdues top resonance feedback. Front Panel - Channel 2 (microphone or instrument channel) Channel 2 XLR Phantom Power Gain Low XLR Input Plug in any balanced dynamic or condenser microphone here. You may also connect an outboard preamp with balanced XLR out to this input. This control affects how well the instrument blends in or stands out in the mix. With the dial set at 12 o'clock, the control is effectively out of the circuit. Clip Gain Low Mid High Brilliance Anti Feedback Off High Shelving treble, ±12dB @ 10kHz. With the knob set at 12 o'clock, the control is effectively out of the circuit. Clip Gain Low Mid High Brilliance Anti Feedback Off Brilliance A resonant-style tone circuit, ±12dB @ 10kHz. With the knob set at 12 o'clock, the control is effectively out of the circuit. Clip Gain Low Mid High Brilliance Anti Feedback Off Anti-Feedback A fixed-level, variable-frequency notch filter -14dB @ 20 - 400Hz. If you encounter low-frequency feedback, sweep this control to isolate and eliminate it. Many guitars will benefit with the Anti-Feedback knob set at about 11 o'clock. The Anti Feedback filter is off at the 7 o'clock position. Brilliance Anti Feedback 1 2 3 Digital Reverb 4 5 Level Lo C Phase Off Ch 1 Ch 2 Brilliance Anti Feedback 1 2 3 Digital Reverb 4 5 Level Lo C Phase Use the phase switch in conjunction with the Anti-Feedback filter to eliminate acoustic feedback. See "About Acoustic Feedback" on page 6. Off Phase Ch 1 Ch 2 Digital Reverb Program The five program numbers correspond to a graduated sequence of reverbs starting with small room (1) to large hall (5). Low Cut Switch Push in this switch if the sound is too bassy or if low frequency feedback cannot be managed by the Anti-Feedback and phase controls. Anti Feedback 1 2 3 Digital Reverb 4 5 Level Lo Cut Aux I Phase Off Ch 1 Ch 2 Aux Channel Lo Cut Aux In Aux Level Master Volume Mute Power Aux Input Plug a CD player into this input. [. . . ] Input Ch 2 Mic Input Aux Ch Maximum Recommended Input Level: Ch 1 Ch 2, ¼" Jack Ch 2 Mic XLR Input Aux Ch Phantom Power (Ch2 Only): XLR Mic In: Bass: Mid: Treble: Brilliance: Anti-feedback: Reverb: Effects Send: Output Impedance: Output Voltage: Effects Return: Input Impedance: Input Voltage: 20 K + 3 dBv (1. 4 V rms max) - 10 dBv Nominal 600 2. 2 K + 3 dBv (1. 4 V rms max) - 10 dBv Nominal 600 W rms 380 W rms max single tone sine wave at 100 Hz 160 W rms single tone sine wave at 1 kHz 60 W rms single tone sine wave at 5 kHz 122 dB SPL 4 dB 60 Hz - 20 kHz -95 dB referred to full output 600 W max @ 120 V rms, 60 Hz 10 M / 68 pF 10 M / 68 pF 8 K Balanced 10 K / 10 K - 20 dBv - 20 dBv - 40 dBv - 10 dBv 6 dBv 6 dBv -12 dBv 6 dBv 48V / 3. 3K Source Impedance ± 10 dB @ 100 Hz (Shelving) ± 12 dB @ 1. 2 kHz (Resonant) ± 12 dB @ 10 kHz (Shelving) ± 12 dB @ 10 kHz (Resonant) -14 dB @ 20 - 400Hz (Hi - Q Resonant) Digital, 5 presets, equalized XLR Out : Output Impedance: + 3 dBv balanced Phantom-power tolerant Crossover: 400 Hz, 3 kHz (Tri-amplified with electronic crossover) 4th Order VCVS Implementation Speaker System: Woofer: Midrange: Tweeters: 12" treated paper cone 6" polypropylene cone 3 x 1" soft dome, rare earth magnets, Ferro fluid-cooled Woofer and midrange installed in separate isolated and damped compartments 40, 50, 60, and 70 degrees 19 ¼" (49cm) H x 25" (63. 5cm) W x 11. 75" (29. 8cm) D 77 lbs (35 kg) Baffle angles with kickstand: Dimensions: Weight: Because we continually improve our products, the specifications and information in this manual are subject to change without notice. 10 CH 1 CH 1 Effects Send Effects Return CH 1 Instrument Input Treble + HI-Z Input Buffer 20Hz HPF Gain Stage Tone Control Section Feedback and Tone CH 1 Phase Phase Inverter Stage _ Balanced XLR/DI Out Gain Pre/Post EQ Switch Balanced DI Amplifier Pre Eq Mixer Bass Mids CH 1 Clipping Indicator Brilliance Comparator Red LED Anti Feedback Mixer Post Eq Post Eq CH 2 CH 2 Effects Send Effects Return Treble CH 2 Instrument Input Mixer HI-Z Input Buffer 20Hz HPF Gain Stage Tone Control Section Feedback and Tone CH 2 Phase + Phase Inverter Stage _ CH 2 Microphone Input Gain Bass Mic Pre +20dB Fixed Gain Mids CH 2 Clipping Indicator Brilliance Comparator Red LED 120Hz Switchable HPF Anti Feedback 48V Phantom Power Post Eq Digital Reverb Master Volume 48V HPF Bypass Switch Crossover Tweeter Tweeter Amplifier Ferro Fluid Cooled 3 Dome Tweeter Array Midrange Midrange Amplifier 6" Polypropylene Cone Midrange CH 3 Aux Input (Stereo Compatible) Mixer Woofer Gain Stage Mixer Buffer Bass Amplifier 12" Woofer with treated paper cone Gain 11 Limited Warranty Save your original sales receipt. It is your proof of purchase if you require warranty service. Fishman Acoustic Instrument Amplifiers ("Products") are warranted to the original consumer purchaser to be free of defects in materials and workmanship under normal use and service for a period of one (1) year from the date of purchase, with the exception of the speaker components, which are warranted for a period of ninety (90) days from the date of purchase. If the Product fails to function properly due to defects in materials or workmanship during the applicable warranty period, Fishman Transducers Inc. ("Fishman"), at its option, will repair or replace the Product, with no charge for labor or materials. [. . . ]