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Technical Detail

Specifications

The full technical picture — dimensions, drivers, and measured response, as supplied with every commissioned pair.

Dimensioned line drawing of the loudspeaker: 38 inches wide, 56.5 inches tall, 30 inches deep.
Frequency Response
±4dB, 45Hz–14kHz along a 1dB-per-octave slope at 3 meters, with an additional 2dB BBC dip.
Sensitivity
≈98dB (1 watt, 1 meter)
Full-Range Driver
Oleg Rullit Super Aero 9 · 6Ω nominal impedance
Woofer
GPA 414-8B 12″ · 8Ω nominal impedance
Crossover
212Hz second-order Linkwitz-Riley, hardwired with Jantzen capacitors and air-core inductors.
Internal Wiring
Jupiter 2 × 16ga twisted pair — tinned copper in lacquered cotton insulation.
Field-Coil Power
Internal 100Vdc regulated linear power supply.
Dimensions
38″ W × 56.5″ H × 30″ D
Net Weight
≈250 lbs each
Frequency response curve measured at 3 meters at 100Vdc, broadly flat from 45Hz to 14kHz with a gentle downward slope.
Frequency Response · Measured at 3 Meters @ 100Vdc