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Amperes QP2250 Power Amplifier with AFS
Amperes QP2250 Power Amplifier with AFS Amperes Public Address System Johor Bahru JB Malaysia Supply Supplier, Services & Repair | HMI Audio Visual Sdn Bhd
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Product Details:
QP Series are available from 125W to 500W 100V line in 2 hu height, with enhanced circuitry for higher efficiency, better frequency response and with extra protection features. It is digitally controlled and thus enable the unit to be monitored and controlled remotely via RS485. They can be linked to PMX II LAN software for remote setting and monitoring, enabling control flexibility for the user. Another distinctive feature is its Auto Fault Sensor ( AFS ) circuitry which auto detects faulty output of the unit and would enable a dry contact to initiate an alarm for fault. The internal Fault Standby Changeover relay would allow a faulty unit to be taken over by a standby amplifier if one of the duty amplifiers failed. A feature that reduces the equipment count in the system as well as reducing cabling complexity

Features:
  • Available in 125 / 250 / 375 / 500W 100V line output in compact 2hu height
  • Digital setting for various control features such as bass, treble, fan speed, etc
  • Built in Auto Fault Sensor and Changeover relay for standby fault changeover
  • RS485 data port for remote monitoring
  • Fan speed option ensures longer lifespan of the unit
  • Overload, thermal cut off, short circuit and fuse protections
  • High efficiency for lower power consumption and lesser back up battery capacity
Technical Specifications:
 
  QP2250
Operating voltage 220-240V AC or 24V DC back up supply
Power consumption (240V AC) 447VA (2.9A)
Current Consumption (24V DC) 10.6A
Standby current (24V DC) 0.7A
Input Signal 1V/10 K Ohm; balanced via XLR female
Input gain control -40 to 0 dB
Outputs 70/ 100V line and 4 Ohm
Rated output (100V, RMS) 250W
4 ohm output voltage 31.6V
Output impedance (max load) 40 Ohm
Frequency response @ 1 KHz 3dB 70 Hz-15 KHz
S/N ratio >70 dB @ 1 KHz, 1V
THD + N <0.18%
Protections Thermal, Short circuit, Overload, Fuse
Cut off temperature 75 Deg C
Cooling system Auto temperature controlled fan speed with auto on
Indications LCD with temp, audio level and address
Communication RS485, 19.2 kbps
Fault sensing Internal Pilot Tone, Detection at 15 to 25 secs at 10 secs intervals
Fault detection response Standby amplifier relay activation, fault dry contact
Dimension (W x H x D) 482d x 88 x 335 mm
Net Weight 12.7 kg
Packing Weight 14.6 kg
 


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