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Series 1
WOOFERS
S1-408 S1-808
S1-410 S1-810
S1-412 S1-812
S1-415 S1-815
OWNER'S MANUAL
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Dear Customer, Congratulations on your purchase of America’s finest brand of car audio compo- nents. At Rockford Fosgate we are committed to musical reproduction at its best, and we are pleased you chose our product. Through years of engineering expertise, hand craftsmanship and critical testing procedures we have created a wide range of products that reproduce music with all the clarity and richness you deserve. For maximum performance we recommend you have your new Rockford Fosgate product i
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TABLE OF CONTENTS Series 1 Woofer Contents ..................................................................1 Introduction ......................................................................................1 Design Features.................................................................................1 Voice Coil ...................................................................................1 Vented Pole Piece .......................................................................1 PVA
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SERIES 1 WOOFER CONTENTS Series 1 Woofer Owner's Manual INTRODUCTION This manual contains information on the construction, installation and operation of the Series 1 low frequency speakers. We recommend you keep this manual for future reference. The Series 1 Woofers are a full line of low frequency drivers ranging in size from 8" to 15" in diameter. System compatibility is ensured by offering each size at four and eight ohm impedance. Designed to offer Rockford Fosgate quality in an affordable s
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Suspension – The suspension of a speaker is the part of the speaker which controls the motion of the cone. This is what changes the electrical energy to sound energy. The surround is constructed from a dual laminated foam which ensures linear motion of the cone while resisting mechanical and environmental damage. Dual Input Terminals – To facilitate hook-up in multiple driver configurations, each positive and negative terminal has two connect- ing lugs. The positive terminal is identified by a d
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CALCULATING LOAD IMPEDANCE The Series 1 Woofers are used for the sub-bass region, those frequen- cies below 100Hz. This is the foundation for the music and the frequency range you feel. Before selecting the passive crossover, it is necessary to calculate the load impedance of the speaker system. In a series circuit the impedance is determined by the formula: R = R + R + R … T 1 2 3 In a parallel circuit the impedance is determined by the formula: 1 1 1 1 = R R + R + R … T 1 2 3 Where R is the
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BUILDING AN ENCLOSURE To work properly, the walls of the enclosure must be rigid and not flex when subjected to the high pressures generated by the speaker's operation. We recommend using 3/4" thick high density particle board or medium density fiberboard (MDF), which are available at most building supply stores. For a large box, internal bracing is needed for reinforcement. The joints should be glued, using non- flammable carpenter's glue, and secured with either nails or screws. Internally the
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5 SPECIFICATIONS Model S1-408 S1-808 S1-410 S1-810 S1-412 S1-812 S1-415 S1-815 Nom. Impedance 48 4 8 48 4 8 FS (Hz) 40 42 36 38 28 29 26 27 RE (Ohm) 3.5 6.9 3.4 6.8 3.4 6.7 3.4 6.7 LE (mH) 1.49 2.40 1.47 2.25 1.43 2.22 1.71 2.87 QMS 4.02 2.90 3.75 3.81 3.41 4.11 4.89 3.90 QES 0.35 0.37 0.40 0.42 0.36 0.45 0.49 0.59 QTS 0.32 0.33 0.36 0.38 0.33 0.41 0.44 0.51 VAS (cu.ft) 1.06 1.06 2.40 2.40 6.57 6.57 11.336 11.336 VAS (liter) 30 30 68 68 186 186 321 321 Power (Watts RMS) 100 100 100 100 100 100 1
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WARRANTY INFORMATION Rockford Fosgate warrants all loudspeakers to the original purchaser for a period of two (2) years parts and labor, providing the product was purchased from an Authorized Rockford Fosgate Dealer. Speakers found to be defective during the warranty period will be repaired or replaced (with a product deemed to be equivalent) at Rockford Fosgate’s discretion. Repaired or replaced speakers will cover the balance of the original warranty period only. Warranty applies only to origi
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NOTES
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NOTES
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Rockford Fosgate Rockford Corporation 546 South Rockford Drive Tempe, Arizona 85281 U.S.A. In U.S.A., (602) 967-3565 In Canada, call Korbon (905) 567-1920 In Europe, Fax (49) 4207-801250 In Japan, Fax (81) 559-79-1265 CP-8975 7/94
