ADAM S2A - 2-way active bass reflex speaker

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Freq.response( 3dB) 35Hz - 35kHz
THD >80Hz less than 0,8 %
Short time sine wave acoustic output at 1 m from 100 Hz to 3 kHz more 108 dB
Crossover frequencies 1800 Hz
Built in amps: Woofer 150W, Tweeter 150W
Free air resonance 40 Hz

Test reports ADAM S2A (prod. 2002) Amp. TDA 7294

Freq.response( 3dB) 53Hz - 20kHz (EQ 150Hz = 0dB)

THD >100Hz less than 0,8 %, below 100Hz THD 2 %

Crossover frequencies

4th order LP
part 1 2nd order LP F=1870Hz Q=0.52
part 2 2nd order LP F=1845Hz Q=1.3
4th order HP
part 1 2nd order HP F=2031Hz Q=0.54
part 2 2nd order HP F=1980Hz Q=1.3
4th order Low-cut filter 20 Hz
part 1 2nd order HP F=19.8Hz Q=0.55
part 2 2nd order HP F=19.8Hz Q=1.3

Free air resonance 50 Hz
Vb=11L
Fb=50Hz
F3=53Hz
Port area = 14.52cm2
Port length = 14cm

Power transformer
2x27V/60VA




Distance 0.2m Rt30=0.15s