Zenemig Hernández Montesinos
15 dic 2006, 11:42
Amigos.
Estoy interesado en adquirir un amplificador y he estado revisando las características del CC 4000 de Crest Audio. He trabajado mucho con otros modelos de esta marca (Pro, CA, V, VX) y son excelentes pero no tengo ninguna referencia de este modelo.
Algunos de ustedes lo ha utilizado?
http://www.crestaudio.com/media/pdf/CCseries_specs.pdf
Power Specifications 8Ω stereo* 4Ω stereo* 2Ω stereo* 4Ω bridged**
CC 4000 800 W 1,350 W 2,000 W 4,000 W
CC 2800 595 W 965 W 1,400 W 2,800 W
CC 1800 450 W 700 W 900 W 1,850 W
* 1kHz @ <0.05% T.H.D+N / **1Khz @ <0.1% T.H.D+N
(CC 2800 shown)
FEATURE OVERVIEW:
• Toroidal power transformer
• Dual, variable speed fans on CC 2800 and CC 4000,
single fan on model CC 1800
• Balanced XLR inputs
• Speakon® and 5-way binding post speaker outputs
• Mode selector switch for stereo, parallel and
bridged-mono operation
• Input sensitivity selection
• Recessed, stepped attenuators
• Front panel circuit-breaker switch
• Five year warranty*
TOURCLASS/PROTECTION CIRCUITS
ACL™ (Active Clip Limiting) prevents speaker damage by
providing gentle gain reduction when the signal approaches the
clipping threshold.
IGM (Instantaneous Gain Modulation) monitors speaker loads
to detect conditions that may overstress output devices. This allows
safe operation into nominal 2Ω speaker loads.
AUTORAMP™ gradually increases gain to the attenuator level
settings when the amplifier is turned on. This prevents abrupt turn-on
level.
Other protection features include: short circuit, DC voltage,
comprehensive thermal management and current in-rush turn-on/off
transient and subsonic input.
DESCRIPTION
Crest Audio CC Series amplifiers are designed to achieve
unsurpassed sonic performance and long-term reliability under
extreme stress in touring or fixed installation applications.
Absolute sonic accuracy is the hallmark of every Crest amplifier.
Bass is solid and defined to the limits of audibility with ample
current reserves. Wide-bandwidth output devices ensure
detailed, transparent high frequency response. And, thanks to
Crest’s exclusive IGM™ circuit, the CC Series will drive 2Ω
loads safely without compromising performance.
Product Specifications CC™ Series
CC 1800 CC 2800 CC 4000
Stereo Power: 8Ω 450 W 595 W 800 W
4Ω 700 W 965 W 1,350 W
2Ω 900 W 1,400 W 2,000 W
Bridged Mono Power: 4Ω 1,850 W 2,800 W 4,000 W
Output Voltage RMS 73 V 82 V 93 V
8Ω and 4Ω Stereo Power ratings @1kHz, <0.05% THD+N both channels driven 2Ω stereo & 4Ω Bridged Mono Power ratings @1 kHz, <0.1%THD+N
Frequency Response 10 Hz – 100 kHz; +0, -2 dB at 1 watt
Power Bandwidth 10 Hz – 35 kHz; +0, -3 dB at rated 4Ω power
Damping factor 8Ω @ 20 Hz to 1 kHz 150:1 500:1 500:1
Input CMRR @ 1 kHz > -75 dB > -65 dB > -65 dB
Gain selectable between x40 (32 dB) and x20 (26 dB)
Input Sensitivity (x40) 1.32 V +/- 3% for 1 kHz, 2Ω rated
power
1.7 V +/- 3% for 1 kHz, 4Ω rated
power
1.88 V +/- 3% for 1 kHz, 4Ω rated
power
Input Impedance 15kΩ Balanced
Hum and Noise A-weighted @ Rated power 8Ω -106 dB -111 dB -112 dB
Crosstalk 1kHz @ rated power 8Ω -55 dB -65 dB -65 dB
Class modulated rail, H switched rail, H switched rail, H
Power Supply Linear with toroid transformer
Current Draw @ 120 VAC 1/8 power 8Ω 400 W 3.4 A 570 W 4.75 A 720 W 6 A
4Ω 685 W 5.71 A 880 W 7.34 A 1,185 W 9.86 A
2Ω 1,000 W 8.34 A 1,250 W 10.41 A 1,825 W 15.21 A
1/3 power 8Ω 1,000 W 8.34 A 1,355 W 11.30 A 1,835 W 15.30 A
4Ω 1,650 W 13.75 A 2,220 W 18.5 A 2,975 W 24.8 A
2Ω 2,340 W 19.5 A 2,905 W 24.3 A 4,535 W 37.8 A
Thermal Emissions 1/3 power, 4Ω BTU/hr 2631 3579 4545
Cooling Back to front via 1 variable speed fan Back to front via 2 variable speed fans
Input connectors Balanced female XLR
Output connectors Speakon® connectors and five-way binding post
Controls
front panel: twin recessed stepped attenuators, circuit breaker/power switch
rear panel: mode select, gain select
LED indicators Signal presence, ACL™ (Active clip limiting), Active status, Temp
Construction 16-gauge steel chassis, cast aluminum front panel
Dimensions 3.5" x 19" x 14.875" (16.125" to rack ears) 88.9 mm x 482.6 mm x 377.8 mm (409.6 mm to rack ears)
Weight 32.6 lbs. (14.8 kg) 39.8 lbs. (18.05 kg.) 43.3 lbs. (19.64 kg.)
Estoy interesado en adquirir un amplificador y he estado revisando las características del CC 4000 de Crest Audio. He trabajado mucho con otros modelos de esta marca (Pro, CA, V, VX) y son excelentes pero no tengo ninguna referencia de este modelo.
Algunos de ustedes lo ha utilizado?
http://www.crestaudio.com/media/pdf/CCseries_specs.pdf
Power Specifications 8Ω stereo* 4Ω stereo* 2Ω stereo* 4Ω bridged**
CC 4000 800 W 1,350 W 2,000 W 4,000 W
CC 2800 595 W 965 W 1,400 W 2,800 W
CC 1800 450 W 700 W 900 W 1,850 W
* 1kHz @ <0.05% T.H.D+N / **1Khz @ <0.1% T.H.D+N
(CC 2800 shown)
FEATURE OVERVIEW:
• Toroidal power transformer
• Dual, variable speed fans on CC 2800 and CC 4000,
single fan on model CC 1800
• Balanced XLR inputs
• Speakon® and 5-way binding post speaker outputs
• Mode selector switch for stereo, parallel and
bridged-mono operation
• Input sensitivity selection
• Recessed, stepped attenuators
• Front panel circuit-breaker switch
• Five year warranty*
TOURCLASS/PROTECTION CIRCUITS
ACL™ (Active Clip Limiting) prevents speaker damage by
providing gentle gain reduction when the signal approaches the
clipping threshold.
IGM (Instantaneous Gain Modulation) monitors speaker loads
to detect conditions that may overstress output devices. This allows
safe operation into nominal 2Ω speaker loads.
AUTORAMP™ gradually increases gain to the attenuator level
settings when the amplifier is turned on. This prevents abrupt turn-on
level.
Other protection features include: short circuit, DC voltage,
comprehensive thermal management and current in-rush turn-on/off
transient and subsonic input.
DESCRIPTION
Crest Audio CC Series amplifiers are designed to achieve
unsurpassed sonic performance and long-term reliability under
extreme stress in touring or fixed installation applications.
Absolute sonic accuracy is the hallmark of every Crest amplifier.
Bass is solid and defined to the limits of audibility with ample
current reserves. Wide-bandwidth output devices ensure
detailed, transparent high frequency response. And, thanks to
Crest’s exclusive IGM™ circuit, the CC Series will drive 2Ω
loads safely without compromising performance.
Product Specifications CC™ Series
CC 1800 CC 2800 CC 4000
Stereo Power: 8Ω 450 W 595 W 800 W
4Ω 700 W 965 W 1,350 W
2Ω 900 W 1,400 W 2,000 W
Bridged Mono Power: 4Ω 1,850 W 2,800 W 4,000 W
Output Voltage RMS 73 V 82 V 93 V
8Ω and 4Ω Stereo Power ratings @1kHz, <0.05% THD+N both channels driven 2Ω stereo & 4Ω Bridged Mono Power ratings @1 kHz, <0.1%THD+N
Frequency Response 10 Hz – 100 kHz; +0, -2 dB at 1 watt
Power Bandwidth 10 Hz – 35 kHz; +0, -3 dB at rated 4Ω power
Damping factor 8Ω @ 20 Hz to 1 kHz 150:1 500:1 500:1
Input CMRR @ 1 kHz > -75 dB > -65 dB > -65 dB
Gain selectable between x40 (32 dB) and x20 (26 dB)
Input Sensitivity (x40) 1.32 V +/- 3% for 1 kHz, 2Ω rated
power
1.7 V +/- 3% for 1 kHz, 4Ω rated
power
1.88 V +/- 3% for 1 kHz, 4Ω rated
power
Input Impedance 15kΩ Balanced
Hum and Noise A-weighted @ Rated power 8Ω -106 dB -111 dB -112 dB
Crosstalk 1kHz @ rated power 8Ω -55 dB -65 dB -65 dB
Class modulated rail, H switched rail, H switched rail, H
Power Supply Linear with toroid transformer
Current Draw @ 120 VAC 1/8 power 8Ω 400 W 3.4 A 570 W 4.75 A 720 W 6 A
4Ω 685 W 5.71 A 880 W 7.34 A 1,185 W 9.86 A
2Ω 1,000 W 8.34 A 1,250 W 10.41 A 1,825 W 15.21 A
1/3 power 8Ω 1,000 W 8.34 A 1,355 W 11.30 A 1,835 W 15.30 A
4Ω 1,650 W 13.75 A 2,220 W 18.5 A 2,975 W 24.8 A
2Ω 2,340 W 19.5 A 2,905 W 24.3 A 4,535 W 37.8 A
Thermal Emissions 1/3 power, 4Ω BTU/hr 2631 3579 4545
Cooling Back to front via 1 variable speed fan Back to front via 2 variable speed fans
Input connectors Balanced female XLR
Output connectors Speakon® connectors and five-way binding post
Controls
front panel: twin recessed stepped attenuators, circuit breaker/power switch
rear panel: mode select, gain select
LED indicators Signal presence, ACL™ (Active clip limiting), Active status, Temp
Construction 16-gauge steel chassis, cast aluminum front panel
Dimensions 3.5" x 19" x 14.875" (16.125" to rack ears) 88.9 mm x 482.6 mm x 377.8 mm (409.6 mm to rack ears)
Weight 32.6 lbs. (14.8 kg) 39.8 lbs. (18.05 kg.) 43.3 lbs. (19.64 kg.)