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Усилвател Lab Gruppen C28:4

Усилвател Lab Gruppen C28:4

Производител: Lab Gruppen
Цена:
Цена: 5748,00 лв.
Описание

The C 28:4 is one of two mid-power, four-channel amplifiers in the C Series family. Attractively packaged in a 2U chassis, it provides 4 × 700 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.

 

FEATURES:

 

ower density – Total output of 2800 W (4 ohms) in a 2U cabinet

Four channels – All channels bridgeable for 2- or 3-channel configurations

Lo-Z or Hi-Z (70 V / 100 V) – Selectable per channel, normal or bridged

Patented Class TD amplifier topology

Voltage Peak Limiter (VPL) – Configurable per channel to optimize each output for connected loads

Phoenix-type input connectors

Screw terminal output connectors

Comprehensive protection and warning – Excessive output current, DC, high temperature, very high frequency (VHF), short circuit, open load, mains fuse protection, and soft start

Efficient and uniform Intercooler® cooling

NomadLink® network ready

 

APPLICATIONS:

• Auditoriums

• Performing Arts Centers

• Convention Centers

• Stadiums and Arenas

• Theme Parks

• Hotels

• Houses of Worship

• Restaurants

• Clubs

• Educational Establishments

• Boardrooms

• Museums

• Offices

• Shopping Malls

• Transportation Facilities

 

SPECIFICATIONS:

 

Number of channels 4

Peak total output all channels driven 2800 W

Peak output voltage per channel 141 V

Max. output current per channel 12 Arms

 

Max. Output Power 16 ohms 8 ohms 4 ohms 2 ohms Hi-Z

 

Per ch. (all ch.’s driven) 600 W 700 W 700 W 300 W 700 W (70 Vrms / 100 V peak)

Bridged per ch. 1400 W 1200 W 600 W n.r. 1400 W (140 Vrms / 200 V peak)

 

Performance with Gain: 35 dB and VPL: 100 V

 

THD 20 Hz - 20 kHz for 1 W <0.1%

THD at 1 kHz and 1 dB below clipping <0.05%

Signal To Noise Ratio >112 dBA

Channel separation (Crosstalk) at 1 kHz >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, 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 / 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”)

 

 

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