Infinity

Quantum Line Source

Speaker

Main Details
Maker Infinity Brand
Function
Additional Model ID QLS-1
Form Factor Floorstanding
Signal Path Passive Hardware
Made In United States
Date Produced 1977-1978
Dimensions
(H × W × D)
Weight 150lbs
Frequency Response 18Hz-32kHz ±2dB
Notes *EMIT (ElectroMagnetic Induction Tweeter)
Rear EMIT is square and found only on the Quantum series.

Option: Walnut or Rosewood veneer
Additional Specifications
Tweeter (Front) 8x EMIT* PN# 902-2252
Tweeter (Rear) 1x EMIT* PN# 902-0157
Midrange 6x 1½" Dome PN# 902-0206
Midbass Coupler 4" Philips AD 5060/W8 PN# 902-0151
Woofer 12" Infinity/Watkins Dual-Drive PN# 902-1180
Recommended Amplifier Power 100W-500+WRMS
Crossover Points 200Hz, 600Hz, 4kHz 1st Order
Horizontal Dispersion ±2dB in 180°
MSRP $2600/pr
Connections
Input
Connector: Binding Post (Universal)
Controls
Parameter: Tweeter Level
Control Type: Rotary Pot
Parameter: Tweeter Crossover Frequency
Parameter: Rear Tweeter
Control Type: Toggle Switch
Parameter: Midrange Level
Control Type: Rotary Pot
Parameter: Midbass Coupler Level
Control Type: Rotary Pot

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