SPL 170 Subwoofer OWNER'S MANUAL AND INSTALLATION GUIDE SOUNDSTREAM TECHNOLOGIES 120 Blue Ravine Road • Folsom • California 95630 USA tel 916.351.1288 fax 916.351.
CONGRATULATIONS! You have chosen a superior product for reproducing high "Sound Pressure Levels" in the car. This precision component, when properly installed, is capable of amazing output performance. SPL170 woofers are extremely high output speakers with performance made possible through outstanding design and exceptional quality in parts and construction. Should your woofer ever require service or replacement, recording the information below for your own records will help protect your investment.
Vented (Continued) 4" x 16" ports) Designed for thunderous home theater bass. Use with 20 Hz high pass filter for very high power handling. dB • 4.5 ft3 @ 25 Hz (Two HEAT TRANSFER AND THE SPL170 -- 30 % BETTER COOLING 105 100 95 90 85 80 75 70 65 60 55 50 One of the major features of the SPL170 is its incorporation of materials and coatings to provide transfer and elimination of heat. 10 100 • 1000 Frequency Hz Vented (V) • Hz (Five 4" x 10" ports) - Very high output in tiny enclosure.
SPECIFICATIONS & THIELE/SMALL PARAMETERS SUGGESTED ENCLOSURES Sensitivity (2.83v/1m) 96 dB Impedance (nominal Z, ohms) 2/8 Rated Program Power, Watts 800 Fs (Hz) 26.2 Qts .371 Qms 7.43 Qes .390 Efficiency Bandwidth Product (Fs/Qes) 67.1 Vas (ft3) 6.36 Vas (liters) 180 3 Vas (m ) .180 Cms (um/N) 160 DCR (ohms) 2.24 Levc (mH) @ 1 KHz 2.475 BL (Tesla m) 14.75 Sd (in2) 131.0 Infinite Baffle • Excellent performance for all types of music at moderate levels Sealed • 1.
BUILDING THE ENCLOSURE • Determine the dimensions of your enclosure. • Be certain the box you have designed will fit into the location you have chosen. Sometimes making a cardboard box with the same outside dimensions is helpful. • Use 3/4 inch thick Medium Density Fiberboard (MDF) or High Density Particleboard. It is preferable to cut the wood with a table saw to ensure straight, even joints. If a table saw is not available, a circular saw is acceptable.
ENCLOSURE VOLUME FLOWCHART Sealed Bandpass Enclosure Sealed bandpass enclosures enclose both sides of the woofer(s). An airtight enclosure is built around the front and back of the woofer and one chamber is ported to a specific frequency.
