CROWN CT-8150 POWER POWER AMPLIFIER 8x150W/8Ω

Model    CT475
Product Type    Amplifier
Channels    4
Sensitivity    1.4V
Rated Power Output    75W per Channel into 8 ohms
Signal to Noise Ratio (below rated power 20Hz to 20kHz, A-Weighted    110dB
Total Harmonic Distortion (THD) (full rated power, 20Hz - 20kHz)    Intermodular Distortion (from 0dB down to -40dB)    Frequency Response (at 1W into 4/8 ohms)    ± 0.5dB
Crosstalk (below rated power 20Hz to 1kHz)    > 70dB
Common Mode Rejection (20Hz to 1kHz)    > 55dB, typically > 70dB
Dimension (H x W x D)    1.75" x 19" x 14.25“
Weight    10 lbs (4.5 kg)

• 4 x 75 Watts into 4 Ohms; 4 x 50 Watts into 8 Ohms
• ATR (Accelerated Transient Response) technology for ultimate punch and clarity
• Ultra-light, ultra-low noise and ultra-efficient switch-mode power supply for noise-free audio, superior transient response and low power consumption
• Independent limiters for each channel offer maximum output level with reliable overload protection
• Detented gain controls for precise setting and matching of sensitivity
• Precise Power, Signal and Clip LEDs to monitor performance
• Servo-balanced XLR and 1/4" TRS inputs plus professional speaker connectors
• Independent DC and thermal overload protection on each channel automatically protects amplifier and speakers without shutting down the show
• “Back-to-front" ventilation system including air filter for reliable operation
• “Built-like-a-tank“, impact-resistant and all-steel 1U rackmount chassis
• Minimum depth chassis (10.1" / 257 mm) and ultra-light weight design (8.8 lbs / 4.0 kg) fits into compact, inexpensive effects racks
• High-quality components and exceptionally rugged construction ensure long life

The C 16:4 is one of two mid-power, four-channel amplifiers in the C Series family. Attractively packaged in a 2U chassis, it provides 4 × 400 W output into 4 ohm loads.

C Series amplifiers are uniquely capable of adapting to a wide variety of demanding load conditions. Each channel has an individually configurable Voltage Peak Limiter (VPL™), which allows the output to be optimized for any loudspeaker load – whether a single large subwoofer or a series of small 100/70 V loudspeakers. VPL works in combination with adjustable input gain to achieve maximum headroom regardless of input levels or output impedances.

Every C Series is ready for the NomadLink® network right out of the box. With NomadLink, key amplifier parameters are displayed via DeviceControl software, and remote control of channel mutes and power on/off is under network control.

Specifications C 16:4

General
Number of channels 4
Peak total output all channels driven 1600 W
Peak output voltage per channel 141 V
Max. output current per channel 8.5 Arms
Max. Output Power 16 ohms 8 ohms 4 ohms 2 ohms Hi-Z
Per ch. (all ch.’s driven) 400 W 400 W 300 W n.r. 400 W (70 Vrms / 100 V peak)
Bridged per ch. 800 W 600 W n.r. n.r. 800 W (140 Vrms / 200 V peak)
Performance with Gain: 35 dB and VPL: 100 V
THD 20 Hz - 20 kHz for 1 W 70 dB
Frequency response (1 W into 8 ohms) +0/-3 dB 6.8 Hz - 34.2 kHz
Input impedance 20 kOhm
Input Common Mode Rejection, CMR 50 dB
Output impedance @ 100 Hz 30 mOhm
Voltage Peak Limiter (VPL), max. peak output
VPL, selectable per ch. 3) 141, 118, 100, 85, 71, 59, 50, 42 V
VPL, selectable when bridged 3) 1) 282, 236, 200, 170, 142, 118, 100, 84 V
Voltage Peak Limiter mode (per ch.) Hard / Soft
Gain and Level
Amplifier gain selectable (all channels) 1)
– rear-panel switches
23, 26, 29, 32, 35, 38, 41, 44 dB
Default gain 35 dB
Level adjustment (per ch.) Front-panel potentiometer, 21 position detented from -inf to 0 dB, hidden behind security panel/dust filter grille
Connectors and switches
Input connectors (per ch.) 3-pin Phoenix, electronically balanced
Output connectors (per ch.) Barrier strip 2-pole screw terminals
Output bridge mode A+B and/or C+D, inputs A and C are input source
NomadLink® network On board, 2 x RJ45 connectors
Intelligent fans (on/off) Yes, depending on presence of output signal
Power on/off and Remote enable on/off Individual switches on front-panel
Cooling Two fans, front-to-rear airflow, temperature controlled speed
Front-panel indicators
Common NomadLink® Network; Power Average Limiter (PAL) 2); Power on
Per channel
Signal present / High-impedance; -10 dB and -4 dB output signal; Voltage Peak Limiter (VPL); Current Peak Limiter (CPL);
Very High Frequency (VHF); High Temperature; Fault; Mute
Power
Operating voltage, 230 V / 115 V nominal 130 -265 V / 65-135 V
Minimum power-up voltage, 230 V / 115 V 171 V / 85 V
Power Average Limiter (PAL) 2) Yes
Soft start / Inrush current draw Yes / max. 5 A
Mains connector 230 V CE: 16 A, CEE7; 115 V ETL: 20 A / NEMA 5-20P
Dimensions (W/H/D) W: 483 mm (19”), H: 88 mm (2 U), D: 343 mm (13.5”)
Weight 12 kg (26.4 lbs.)
Finish Black painted steel chassis with gray painted steel front
Approvals CE, ANSI/UL 60065 (ETL), CSA C22.2 NO. 60065, FCC
Note 1): Automatic -6 dB gain compensation when bridging channels. Ch.’s A+B and/or C+D, can be bridged individually.
Note 2): PAL can reduce the maximum output power to keep the power supply operating safely, and/or to prevent excessive current draw tripping the mains breaker.
Refer to Operation Manual.
Note 3): For sine waves, peak voltage output values translate to Vrms with the formula V/1.41 = Vrms. E.g. 100 V peak equals app. 70 Vrms.
Hence, outputs can be set for high-impedance loads without requiring a transformer.
All specifications are subject to change without notice.

Power Output Level: QD4240                     

8ohm (Quad Ch)      40W     
4ohm (Quad Ch)      60W                                                          

8ohm bridged mono 120W

Input Sensitivity (8ohm, 1kHz)  0.775Vrms
Input Impedance 20kohm Balanced 
Slew Rate (8ohm, Full Swing) ±30V/?sec
Frequency Response (±0.5dB) 20kHz ~ 50kHz 
T.H.D. (f=20Hz~20kHz, Half Power) 0.03% 
Signal to Noise Ratio 105dB
Damping Factor (8ohm, 1kHz)  100
Rasidual Noise  -85dB
Channel Separation (8ohm, 1kHz)  80dB
Voltage Gain (4ohm)  26dB 29dB 32dB
Power Source  100-120VAC or 220-240VAC ; 50/60Hz
(supplied AC mains transformer depends on country requirements)
Power Consumption  300W 420W 770W
Weight  11.5kg/25.3lb 15.5kg/34.2lb 17kg/37.5lb
Dimensions  482(W) x 88(H) x 369(D) mm
/19(W) x 3.5(H) x 14.5(D) in

Electro Voice PA 4150L features:

    * 100 Watts / 8 Ohms
    * 160 Watts / 4 Ohms
    * The amplifier channels can be bridged for more flexibility
    * Frequency response (-1dB): 10 Hz - 40 kHz
    * Signal-to-Noise Ratio: 100 dB
    * Provides excellent headroom for a wide dynamic range on music signals
    * Protection: audio limiters, high temperature, peak current limiters, turn-on delay
    * Marked level controls on the rear panel provide hidden reliable level adjustments for each channel
    * Front panel LEDs indicate signal present, 0 dB, and limit
    * Phoenix type connectors for inputs and outputs provide an easy rack wiring
    * Cooling: front-to-rear
    * Power requirements: 120V or 230V, 50 Hz - 60 Hz
    * Dimensions (WxHxD): 483 x 88 x 406 mm / 19" x 3.5" x 16"
    * Weight: 18 kg / 39.65 lbs