High and Mid-Range Continuous Control Rheostats
Acoustical properties vary widely from one listening room to the next. As the acoustical properties Vary, the greatest impact is felt on the mid-range and high frequency responses.
The SP50 may be modified to suit different listening room locations. Two front-mounted continuous control Rheostats allow the treble and mid-range to be increased or decreased from 0 to 3 dB. Highly absorbent acoustical conditions would require the maximum emphasis from both controls. Highly reflective acoustical conditions would require the maximum de-emphasis from both controls.
Furniture Quality Construction
There's more to the SP50's cabinet construction than meets the eye. Like solid 3/4" chipboard core that ends unwanted resonances. And an acoustically transparent jersey cloth grille covering that allows 99% of all sound to flow through, exceeding the performance of any other type of grille covering.
What does meet the eye is equally impressive. Cabinet construction is utterly seamless. The finish is of fine furniture-quality hand-rubbed walnut veneers. And the dark brown jersey cloth grille covering is strikingly contrasted by the polished aluminum trim.
For sound that fits the finest surroundings , a cabinet to match.
As with the SP40 model, the same technologies have been adopted for:
Rugged Deep Response Woofer
Wide-Dispersion Midrange
Special Acoustically Isolated Tweeter
Specifications
Drivers
Woofer 12" cone-type
Mid-range 2" wide-dispersion dome-type
Tweeter 2 x 1" dome-type
Power Handling Capacity: 70 watts (RMS);
Impedance : 8 Ω
Efficiency: 96 dB at 4 watts 1 metre (THD 1.0%)
Frequency Response: 30 - 20,000 Hz
Crossover Frequencies: 500 Hz, 4500 Hz
Crossover Network: 3-way 12 dB/octave parallel type
Fuse Type: Fast blow protection
Dimensions (H x W x D): 27" x 13-3/8" x 16-1/2"
Weight: 60 lbs