Wangine WPA-120

Data

General

  • Manufacturer: Wangine
  • Model: WPA 120
  • Color: Silver
  • Type: Stereo
  • Power consumption: max 800 watts
  • Dimensions: 422x140x318mm (WxHxD)
  • Weight: 16,3 kg
  • Original price: 789 DM (October 1983)


Technical data

  • Continuous power

8 Ohm: 2x120W

  • dynamic power
    • 8 Ohm: 2x240W
  • Distortion factor
    • Total Harmonic Distortion <0,015% at rated power output 8 Ohm

Inter Modulation Distortion <0,009% at rated power output 8 Ohm

  • Attenuation Factor: 200 (8 ohms, 1,000 Hz)

S/N Ratio: 110dB (IHF, A-weighted)

  • Frequency range: 5Hz - 200,000 Hz (+0, -3 dB)
  • Input impedance: 50 kOhm
  • Input sensitivity: 1 Volt
  • Output: 4 - 16 Ohm


Other

  • Spectrum Analyzer

32 Hz

    • 63 Hz
    • 125 Hz
    • 250 Hz

500 Hz

    • 1 kHz
    • 2 kHz
    • 4 kHz
    • 8 kHz
    • 16 kHz
  • Display switching
    • 1 => 1 Watts to 240 Watts
    • 0.1 => 0.1 Watts to 24 Watts
    • 0.01 => 0.01 Watts to 2.4 Watts
  • Control Switch
    • A, B, A+B


Semiconductor

  • 2 FET
  • 10 IC
  • 71 transistors
  • 91 LEDs
  • 46 diodes
  • 3 bridge rectifier


Note

The above performance data are original data. Own measured power at 50 Hz sine input signal:

~ 145 W into 8 Ohm

~ 225 W into 4 Ohm

Measured at an appropriate load resistor with optical control by oscilloscopes for a 'clean' output signal. Only one channel was measured under power. Because of the construction as a double mono power amplifier (separate power supplies) this power should be reached on both power amplifiers at the same time. Whether this power represents a continuous power was not checked, but these powers were reached cleanly over a period of about 15 minutes. After that, the measurement was stopped to protect the load resistors, as they were not sufficiently dimensioned in terms of power.


The output stage has a switch-on delay and a protection circuit. This protective circuit is partially sensitive to mains interference. A sufficiently dimensioned mains filter can remedy this.

Remarks

Other models of the same series:

Pictures

Wangine WPA120 01.jpg

Wangine WPA120 02.jpg

Wangine WPA120 03.jpg

Wangine WPA120 04.jpg

Wangine WPA120 05.jpg