Yamaha

NS-690II

Speaker

Main Details
Maker Yamaha Brand Nippon Gakki Co. Ltd. Company
Function
Additional Model ID NS-690 MkII
Form Factor Bookshelf / Stand Mounted
Signal Path Passive Hardware
Made In Japan
Date Produced 197?-1980
Dimensions
(H × W × D)
Weight 59.4lbs
Frequency Response 35Hz-20kHz
Additional Specifications
Treble 30mm Soft Dome Part #JA-0509B
Midrange 75mm Soft Dome Part #JA-0701B
Bass 300mm Cone Part #JA-3060
Sensitivity 90dB/W/m
Impedance (Nominal) 8Ω
Crossover Frequencies 800Hz, 6kHz
Crossover Slope 12dB/Oct Second Order
Recommended Amplifier Power ≥30W
Power Handling (RMS) 40W
Power Handling (Peak) 80W
Enclosure Type Acoustic Suspension
Fundamental Resonance Frequency (f₀) 40Hz
Controls
Parameter: Treble Level
Control Type: Rotary Pot
Parameter: Midrange Level
Control Type: Rotary Pot

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