Fishman Loudboxpro Acoustic Amp

FISHMAN LOUDBOXPRO Details ^top

The tri-amped, 600-watt, two-channel Loudbox Pro features a 12" woofer driven by a 380-watt power amp. The 6" polypropylene mid driver is pushed by 160 watts and the three 1" soft-dome neodymium tweeters also have their own 60-watt amplifier. These
speaker components have been painstakingly designed for high power handling and a smooth, flat acoustic response. Each component is housed in its own sealed enclosure and tuned precisely for acoustic stringed instruments. For close onstage monitoring, an integrated kickstand allows you to tilt the amp back as much as 70 degrees.

The decision to use a tri-amped, three-way speaker system was driven entirely by our quest for amplified clarity and sheer volume. Most acoustic amplifiers on the market are severely underpowered and just don’t have the quality components and/or the horsepower to honestly reproduce acoustic instruments at concert levels. To achieve the sound quality and power levels were looking for, a traditional power amplifier and two-way speaker system just couldn't cut it; we’d sacrifice the system’s response or we would over-burden the drivers. Once we added a midrange driver and three power amps to the equation, all these problems evaporated.

Taking a cue from commercial sound reinforcement systems, the three power amplifiers that drive the Loudbox Pro deliver cleaner, less distorted sound through the speakers than any acoustic amplifier in its class. The high-efficiency paper-cone woofer pumps
out the bass, the polypropylene midrange driver handles the crucial mid frequencies and three soft-dome neodymium tweeters top off the treble.

The tweeters in the Loudbox Pro are identical to those used in the best studio mastering monitors; they produce a silky smooth treble that is perfect for acoustic instruments. With three of these tweeters, you get great dispersion and high SPLs, without the unpleasant “honk” of high-frequency compression drivers found in many other acoustic amplifiers.

The two-channel Loudbox Pro features ultra-high impedance instrument inputs with EQ sections that include bass, midrange, treble and brilliance controls. Loudbox Pro has a greater than 122 dB SPL rating, so the big thrills with this amp come when you step on
the gas and feel the surge of power. Fighting acoustic feedback is straightforward with the Loudbox Pro’s notch filters and phase switches. A sophisticated digital reverb with five useful settings can be assigned to either (or both) channel(s). A mute switch, dual
effects loops, and an XLR output with selectable pre/post EQ round out the features.

 

FISHMAN LOUDBOXPRO Documentation ^top

Click here for manual (pdf)

FISHMAN LOUDBOXPRO Specs ^top

Performance Specifications
Cumulative Rated Power: 600 W rms
Woofer Amp: 380 W rms max single tone sine wave at 100 Hz
Midrange Amp: 160 W rms single tone sine wave at 1 kHz
Tweeter Amp: 60 W rms single tone sine wave at 5 kHz
SPL @ 1 Meter: ≥ 122 dB SPL
Frequency Response: ≥ 4 dB 60 Hz - 20 kHz
Hum and Noise: ≥ -95 dB referred to full output
Power Consumption: 600 W max @ 120 V rms, 60 Hz
Input Impedance:
Ch 1 10 M Ω / 68 pF
Ch 2, ¼" Jack 10 M Ω / 68 pF
Ch 2 Mic Input 8 K Ω Balanced
Aux Ch 10 K Ω / 10 K Ω
Nominal Input Level:
Ch 1 - 20 dBv
Ch 2 Inst. Input - 20 dBv
Ch 2 Mic Input - 40 dBv
Aux Ch - 10 dBv
Maximum Recommended Input Level:
Ch 1 6 dBv
Ch 2, ¼" Jack 6 dBv
Ch 2 Mic XLR Input -12 dBv
Aux Ch 6 dBv
Phantom Power (Ch2 Only):
XLR Mic In: 48V / 3.3K Ω Source Impedance
Bass: ± 10 dB @ 100 Hz (Shelving)
Mid: ± 12 dB @ 1.2 kHz (Resonant)
Treble: ± 12 dB @ 10 kHz (Shelving)
Brilliance: ± 12 dB @ 10 kHz (Resonant)
Anti-feedback: -14 dB @ 20 - 400Hz (Hi - Q Resonant)
Reverb: Digital, 5 presets, equalized
Effects Send:
Output Impedance: 2.2 K Ω
Output Voltage: + 3 dBv (1.4 V rms max)
- 10 dBv Nominal
Effects Return:
Input Impedance: 20 K Ω
Input Voltage: + 3 dBv (1.4 V rms max)
- 10 dBv Nominal
XLR Out :
Output Impedance: 600 Ω
+ 3 dBv balanced
Phantom-power tolerant
Crossover:
400 Hz, 3 kHz (Tri-amplified with electronic crossover)
4th Order VCVS Implementation
Speaker System:
Woofer: 12" treated paper cone
Midrange: 6" polypropylene cone
Tweeters: 3 x 1" soft dome, rare earth magnets, Ferro fluid-cooled
Woofer and midrange installed in separate isolated and damped compartments
Baffle angles with kickstand: 40, 50, 60, and 70 degrees
Dimensions: 19 ¼" (49cm) H x 25" (63.5cm) W x 11.75" (29.8cm) D
Weight: 77 lbs (35 kg)

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