AKG Pro Audio
 CU 4000
 Analog Wireless Microphones Systems

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CU 4000


Product Code: cu4000
 LaCie d2 Network 2 301504

 The CU 4000 revolutionizes battery management for wireless systems. The heart of the supply system is the BP 4000 rechargeable battery pack with built-in active monitoring circuitry. An integrated microprocessor continuously monitors battery status and accurately calculates the remaining battery life. This puts an end to the nightmare of batteries failing in the middle of a performance. A processor controlled pulse charging system charges the battery pack quickly yet gently, and the integrated "Charge Balance Management" feature makes sure that only as much energy is fed to the battery pack as had previously been drawn from it. In addition, several monitoring circuits and a temperature sensor prevent the battery pack from being overcharged.

A self-discharge counter does not only measure battery discharge during operation but also determines the charge level after prolonged storage periods. As charging begins, the BP 4000 circuitry sends all relevant data to the CU 4000 charger to "tailor" the charging process exactly to the needs of the battery pack. To eliminate memory effect, the CU 4000 automatically checks whether the battery pack needs a recovery cycle and automatically starts the cycle after the user has con- firmed the start command. The charger provides two dedicated compartments for charging two HT 4000/4500 or PT 4000/4500 or SPR 4 transmitters or two battery packs at the same time. The BP 4000 plus CU 4000 system is an investment that will quickly help reduce battery cost and reduce environmental hazards from used batteries.
Features
  • Intelligent battery supply system comprising CU 4000 charging unit and BP 4000 battery pack
  • Microprocessor controlled charge/discharge monitoring function
  • One-hour quick charging and Battery Recovery Management
  • Charging compartment allows battery pack to be charged inside the transmitter
Specifications
  • Carrier frequency range: 500 to 530, 570 to 600, 650 to 680, 680 to 710, 720 to 750, 760 to 790, 790 to 820, 835 to 863 MHz
  • Audio bandwidth: 35 to 20,000 Hz
  • THD: <0.3% typical
  • Signal/noise ratio: >120 dB(A) typical
  • Modulation: FM
  • Audio outputs balanced: 3-pin XLR; unbalanced TS 1/4" jack; output level adjustable to -30, 0, +6 dB
  • Dimensions: 200 x 44 x 190 mm (7.8 x 1.7 x 7.4 in.)
  • Net weight: 972 g (2.2 lbs.)
  • Patent(s): Remaining playing time (Patent no. AT 408.280, GB 2.349.230, US 6.344.730)

Standard Accessories

  • BP 4000 (Discontinued), Rechargeable battery pack
  • Power supply
 

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