ESC
Bias 550

Bias 550

BrandAltec Lansing
ManufacturerSparkomatic Corporation
FunctionSpeaker
Produced1988
Form FactorFloorstanding
Signal PathAnalog Hardware
Dimensions48.3 × 180.3 × 61 cm (W × H × D)
Weight437lbs
Frequency Response20Hz-22kHz ±2dB
Upper Treble1" Polyamide Dome
Lower Treble2" Polyamide Dome
Midrange6.5" Carbon Fiber Cone
Midbass8" Carbon Fiber Cone
Bass10" Carbon Fiber Cone (x2)
Crossover Frequencies80Hz, 450Hz, 1.5kHz, 4.5kHz
Sensitivity (90dB)100mV
Input Impedance22kΩ
Output Power (Upper Treble)75W
Output Power (Lower Treble)125W
Output Power (Midrange)125W
Output Power (Midbass)125W
Output Power (Bass)250W
Maximum Output (40Hz-20kHz)120dB/2m
Enclosure TypeSealed
FinishWalnut
MSRP (1988)$12,000