Incorporating all the design advantages of the famous E-V Radax coaxial principle, the E-V Models SP12 (and SP12B) full-range coaxial reproducers include the latest developments in the electro-acoustic art.. Bass response is extended affording, for the first time, pleasing musical balance without the masking effects previously experienced from increased high-frequency reproduction. Tailored to optimum listening requirements, these new developments insure smooth, even coverage of the entire listening area.
Eclusive, E-V engineered features include true coaxial mounting of both reproducing elements insuring smooth room coverage, augmented balanced bass response in conjunction with smooth extended high-frequency reproduction. The carefully tailored midrange characteristic provides realism and "presence" at usual sound levels, off setting ear insensitivity at low volume. The exclusive Radax design features a true acoustical crossover in which the mass of the bass cone and its voice-coil coupling compliance is no proportioned as to decouple the woofer above crossover. The Radax unit is free from phasing dips and displays less than 1,4% Total Harmonic Distortion above crossover. The edgewise wound aluminum voice coil design affords 18% more efficiency and consequent damping of transient distortion. An unusually heavy magnet structure is used.
Specifications
Frequency Response: 30 - 13,000 Hz
RETMA Sensitivity Rating: 48 dB
Free-Space Cone Resonance: 35 - 45 Hz
Impedance: 16 Ω
Power Handling Capacity
Program : 25 watts
Peak : 50 watts
Critical Damping Factor
In Aristocrat enclosure: 2,0
In an infinite baffle: 1,0
Voice Coil Diameter: 2,5 -inch
Magnet Weight: 3 lb
Mechanical Crossover: 3000 Hz
Dimensions
Diameter : 12-1/4" (7-3/4: d. overall)
Mounting: 11-1/2" diameter (four 1/4" holes equally spaced on circle)
Baffle Opening: 11"
Net Weight: 19 lbs