AMPLITUDE/FREQUENCY RESPONSE: | 45 Hz to 20 kHz, +/- 1.5 dB (anechoic). |
EFFICIENCY: | Approximately 91 dB SPL (ref: 1 meter, on-axis) for an input level of 2.83 Volts RMS |
IMPEDANCE: | Nominal 4 ohms (min.=3 ohms; max.=5.5 ohms) |
PULSE-COHERENCE: | Impulse response is equal to or better than most top-of-the-line CD players and Digital Processors (at 10 ft. on-axis) |
RADIATION PATTERNS: | Precisely symmetrical in both horizontal and vertical planes |
DIFFRACTION DISTORTION: | Virtually eliminated by the use of efficient sound-absorbing material on all relevant surfaces. (US Patent #4,167,985) |
DRIVERS: | -Two 6 1/2" Woofers (cast basket, high damping rubber surround) -Two 5" Mid-Bass (cast basket, high damping rubber surround) -One 1" composite textile dome tweeter. |
CROSSOVER AND INTERNAL WIRING: | First order design. Biwire, biamp capability. High voltage, metal film capacitors. Precision machined wound, heavy gauge, high purity copper coils. CAD designed Mil spec fiberglass PC boards utilizing high purity copper traces. Internal wiring via individually isolated ultra pure, proprietary copper cables. |
RECOMMENDED AMPLIFIER POWER: | Recommended minimum of 50 watts into 8 Ohms. |
SIZE: | 72" (1829mm)H x 9" (229mm)W x 12" (305mm)D |
WEIGHT: | 80 lb (36 kg) each |
MATERIAL: | 3/4" MDF, hardwood corners, architectural hardwood veneers |
FINISH: | Standard: light or black Oak. Optional: Rosewood, Cherry or Natural Cherry. |
GRILL: | Frame: Acoustically transparent, precision machined steel frame. Cloth: Acoustically transparent black weave |