Infinity

Quantum Reference Standard

Speaker

Main Details
Maker Infinity Brand
Function
Additional Model ID QRS
Form Factor Floorstanding
Signal Path Passive Hardware
Made In United States
Date Produced 1977 to 1982
Dimensions
(H × W × D)
Frequency Response 18Hz-32kHz ±2dB
Notes *ElectroMagnetic Induction Tweeter
**ElectroMagnetic Induction Ribbon Midrange (Strathern)

Predecessor to the legendary IRS.

Option: Walnut or Rosewood veneer
Additional Specifications
Tweeter (Front) 13x EMIT*
Tweeter (Rear) 7x EMIT*
Midrange 3x EMIRM**
Woofer 15" Infinity/Watkins Dual-Drive
Recommended Amplifier Power Bass: 150W+ Mid/Treble: 100W+
Crossover Points 100Hz, 4kHz Electronic, 1st Order
Horizontal Dispersion -2dB in 60°
MSRP $6500
Connections
Input
Connector: RCA (Phono, Cinch)
Output
Connector: RCA (Phono, Cinch)
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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