XPA 2004

XPA 2004

1. Provide a compact, energy efficient audio amplifier that shall support four analog inputs and four amplified outputs with 100 or 200 watts rms power output per channel.
   1. Compact amplifier with four channels of 100 or 200 watts rms power output and Ecofficient Level 3 qualification
      1. Input Requirements
         1. Shall support four, balanced or unbalanced line level signals on four 3-pole, 3.5 mm captive screw connectors
         2. Shall support wiring of a mono source to either input 1 or input 3 for bridged output operation
      2. Output Requirements
         1. Shall support four speaker level signals on two 4-pole, 5 mm screw-lock captive screw connectors
         2. Shall provide a total of 800 watts rms output power with 200 watts rms per channel into 4 ohms, or 100 watts rms per channel into 8 ohms measured at 1 kHz with less than 0.05% THD
         3. Shall support bridging of either pair of outputs to provide 400 watts rms output power into 8 ohms measured at 1 kHz with less than 0.05% THD
         4. Shall provide a signal-to-noise ratio of 100 dB measured from 20 Hz to 20 kHz, unweighted
         5. Shall support a minimum load impedance of 4 ohms under normal operation or 8 ohms during bridged operation
         6. Shall provide a THD+N measurement of 0.1% measured from 20 Hz to 20 kHz, at 1 kHz and 3 dB below clipping
         7. Shall provide damping factor of greater than 100 at 8 ohms
      3. Amplifier Requirements
         1. Shall utilize an efficient Class D amplifier design
         2. Shall provide Class D Ripple Suppression technology
         3. Shall be convection cooled and operate without fans or vents
         4. Shall provide an automatic clip limiter to detect onset of clipping by comparing input and output waveforms and automatically reduce gain without audible artifacts to eliminate clipping distortion
         5. Shall provide multiple protection circuits that activate during output shorts, thermal overload, or DC faults
         6. Shall provide power factor correction technology to remove harmonic content on the AC power line
      4. Power Requirements
         1. Shall draw 146.5 watts during typical (1/8 power) operation with four output channels driven with 4 ohm loads
         2. Shall draw 89.3 watts during typical (1/8 power) operation with four output channels driven with 8 ohm loads
         3. Shall draw 28.7 watts during quiescent operation
         4. Shall provide a low power standby mode
            1. Shall enter standby mode after 25 minutes (+/- 5 minutes) of inactivity
            2. Shall draw less than 1 watt while in standby mode
            3. Shall return to full power status in less than one second upon signal detection while in standby mode
            4. Shall feature an input signal detection threshold of -40 dBu, +/- 3 dB on a balanced input to deactivate standby mode
         5. Shall meet Ecoffiient Level 3 requirements
         6. Shall provide internal universal power supply with IEC power socket and support for international 100-240 VAC, 50/60 Hz standards
      5. Control Requirements
         1. Shall support remote standby control on one 2-pole, 3.5 mm captive screw connector
      6. Front Panel Requirements
         1. Shall provide an LED for power indication that lights green when the unit is receiving power and active, and lights amber when the unit is in standby mode
         2. Shall provide an LED for indication of the enclosure temperature exceeding the optimal value
         3. Shall provide green LEDs for input signal presence indication
         4. Shall provide red LEDs for indication of clip warning and protection circuit activation
      7. Rear Panel Requirements
         1. Shall provide four inputs on four 3-pole, 3.5 mm captive screw connectors
         2. Shall provide four outputs on two 4-pole, 5 mm screw-lock captive screw connectors
            1. Shall support 22 AWG to 12 AWG speaker cables
         3. Shall provide standby control port on one 2-pole, 3.5 mm captive screw connector
         4. Shall provide recessed, detented potentiometers for attenuation adjustment
         5. Shall provide two switches for selecting bridged operation of either pair of outputs
         6. Shall provide an LED for power indication that lights green when the unit is receiving power and active, and lights amber when the unit is in standby mode
         7. Shall provide green LEDs for input signal presence indication
         8. Shall provide red LEDs for indication of clip warning and protection circuit activation
      8. General Requirements
         1. Shall be enclosed in a rack-mountable 1U, full rack width metal enclosure
         2. Shall meet regulatory compliances
            1. Shall meet safety compliances under BSMI, CCC, CE, c-UL, GS, PSE, S-Mark, and UL
            2. Shall meet UL 60065, IEC 60065, and BSEN 60065 for safety
            3. Shall meet EMI/EMC compliances under CE, CISPR Class B, CISPR 24, C-tick, ED55103-1, EN55103-2, FCC Class B, ICES, KCC, and VCCI Class B
            4. Shall comply with appropriate requirements of EU code of conduct, RoHS, and WEEE
         3. Shall provide three years parts and labor warranty
   2. Approved device shall be the Extron XPA 2004, part number 60-563-02; no alternates or equals.