Ultralinear

ST525

Speaker

Main Details
Maker Ultralinear Brand Ultralinear Loudspeakers Company Solar Audio Products, Inc. Company Synchronic Time Array Series
Function
Additional Model ID ST-525
Form Factor Bookshelf / Stand Mounted
Signal Path Passive Hardware
Made In United States
Date Produced 1977-19??
Frequency Response 30Hz-22kHz
Additional Specifications
Treble 1" Dome
Midrange 2" Dome
Bass 10" Cone
Passive Radiator 10" Cone 10" driver acting as passive radiator with voice coil shorted by variable resistor to adjust damping thereby adjusting tune
Impedance (Nominal) 8Ω
Crossover Frequencies 700Hz, 4.3kHz
Recommended Amplifier Power 20-75W
Enclosure Type Passive Radiator
Finish Walnut Melamine Optional: Oak, Walnut
MSRP (1977) $350 Optional Finishes: $390
Controls
Parameter: Treble Level
Control Type: Rotary Pot
Parameter: Midrange Level
Control Type: Rotary Pot
Parameter: Bass Level
Control Type: Rotary Pot

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