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YAMAHA NS-690

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Technic details

Specifications

Type:
3 ways • 3 speaker • sealing method • book shelf type
Used unit:
For low range - 30cm cone type (JA - 3056)
For mid range - 7.5cm soft dome type (JA - 0701)
For high regions - 3cm soft dome shape (JA - 0509)
Playback frequency band:
35Hz - 20000Hz
Crossover frequency:
Low-mid - 800Hz (12dB / oct)
Mid-high - 6000Hz (12dB / oct)
Lowest resonance frequency (fo):
40Hz
Impedance:
8Ω
Output sound pressure level:
90dB / W / m (New JIS)
Maximum allowable input:
60W
Operating power:
4W (Input power required to obtain 96dB sound pressure level at 1 meter according to DIN 45500)
Level control:
Continuously variable type
Dimensions (W x H x D):
350 x 630 x 312mm (291mm without grille)
Weight:
22kg
Year:
1973

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