Crest Audio ProTour 4004d

CAPT4004D

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Overview

Pro Tour Series power amplifiers are highly flexible, poweriul and intelligent multi-channel amplifiers delivering a variety of configurations and power levels to satisfy the most demanding portable and fixed installation system requirements. Providing high output power, onboard DSP , USS/Ethernet for monitoring and control and Dante™ network connectivity for seamless inclusion of two, three or four channels of Class D power amplification.

The Pro Tour includes an efficient Switch Mode Power Supply, which provides power to the output stages. The output stages utilize Class D power modules with full bandwith PWM modulators to obtain ultra low distortion, high efficiency and circuit protection. The Clip/Limiter function provides output monitoring to prevent speaker damage with gentle gain reduction at clip threshold, in addition to the efficient heat dissipation system and Over-Heat protection, ensuring uncompromised reliability.

Each model is also a sophisticated loudspeaker processor, thanks to its powerful internal DSP engine sampling at 96 kHz/24 bit (96 bits precision for the internal intermediate processes) and high performance 24bit AD/DA converters. Each model offers up to four channels of slope up to 48d8/0ctave. IIR HP/LP Crossover filters, or up to 512 taps FIR filters (FIR coefficients can be imported as a .txt file from the external application), RMS Compressor, Parametric EQs, Alignment Delay and an internal white/pink noise generator.

• Channels: 4
• Per Channel @ 8 Ω: 700W
• Per Channel @ 4 Ω: 1000W
• Bridged @ 8 Ω: 2000W
• Per Channel @ 70V: 1000W
• Min Load: 4 Ω
• Freq Response: >102 db
• Analogue Input: 4 x XLR

DSP Features

DSP Resolution: 24 bit (data) x 24 bit (coefficient)
Parametric EQ: 12-bands per input, 4-bands per output
Filter Types: Bell, Shelving, HP/LP, Band Pass, Notch Filter, All Pass
Filter Gain: -15dBu to + 15dBu in 0.5dBu increments
Filter Q/BW: Bell: Q from 0.4 to 104, Shelving: Q from 0.1 to 5.1, 100
Bandpass/Notch: Q from 4 to 104 (increments of 100 steps)
Input/Output Gain: -12dB, +12dB, 0.1dBu resolution
IIR Crossover: Butterworth 6/12/18/24/36/48dB per octave, Bessel 12/24d B per Octave Linkwitz-Riley 12/24/36/48dB per Octave
FIR Crossover: HP/LP/BP Filters, Taps from 256 to 512, Attenuation up to -120dB
HPF/LPF: Window type as Rect/Sinc/Keiser/ Hanning/Hamming/Blackman/Nuttal/Sine
Noise Generator: White/Pink Noise, Level -40dBu to 0dBu
Input RMS Compressor: Threshold from -16dBu to+ 14dBu Ratio: 2:1 - 32:1, Knee: 0 - 100%, Attack Time: 5ms to 200ms, Release Time: 0.1 sec to 3 sec
Output Peak Limiter: Threshold: -16dB to +14dBu, Attack Time: lms to 900ms, Release Time: 0.1 sec to 5 sec
Routing: Full matrix/mixing mode

Specification

Weights & Dimensions