ESC
XI

XI

BrandRectilinear
ManufacturerRectilinear Research Corporation
FunctionSpeaker
Produced1970
CountryUnited States
Form FactorBookshelf / Stand Mounted
Signal PathPassive Hardware
Dimensions30.5 × 58.4 × 26.7 cm (W × H × D)
Weight28lbs
Frequency Response45Hz-17kHz ±3dB
Treble4" Paper/Phenolic Cone (Part #RT-11, Voice Coil: 0.56", 3oz Ferrite Magnet)
Midrange/Bass10" Paper Cone (Part #W-11, 16oz Alnico V Magnet)
Impedance (Nominal)8Ω
Impedance (Minimum)7.5Ω
Impedance (Maximum)29.4Ω (At 65Hz)
Crossover Frequency1.8kHz
Crossover Slope6dB/Oct Electrical, 18dB/Oct Acoustic (First Order, Third Order)
Time Delay (Woofer)0.7-1.0ms
Time Delay (Tweeter)<0.1ms
Minimum Recommended Power (RMS)10W
Power Handling (IHF Music Power)70W
Enclosure TypeBass Reflex
Enclosure Construction0.75" Particleboard
FinishOiled Walnut
Connections
  • Input · Binding Post (Universal)
Controls
  • Tweeter Level · Rotary Pot