| (510) 732-1000 | RCS-650 RCS-800 Introduction Congratulations on your choice of RCS Series In-Ceiling Speaker systems, one of Earthquake’s most valued in-ceiling speaker lines. With the proper installation and operation RCS speakers will provide a life a time of durability and high-end performance. It is important that you follow all installation and mounting instructions and recommendations in this manual closely and carefully to insure optimal performance operation and longevity. Features •

| RCS-650 Specifications Woofer Size: Woofer Material: Tweeter Size: Tweeter Material: Power Handling RMS: Power Handling Max: Frequency Response: Sensitivity: Impedance: Crossover: Finish: Weight: 6-1/2” (165mm) Polypropylene 1” (25mm) silk dome/NEO magnet 5 - 80W 160W 45Hz - 20kHz 92dB 8-ohm 12dB/octave filter network with polyswitch White/Paintable 2.48 lbs (1.12kg) 3” (77mm) 8” (203.8mm) 6-3/4” (172mm) 7” (177mm) 3-1/8” (80mm) Frame Diameter: Grille Diameter: Cut-out Hole Diameter: Mounting

Earthquake Sound Corporation reserves the right to refuse improperly packed product. Original bill of sale must accompany product returned for service. We encourage you to include with the package a written description of the problem. Ship product to: Earthquake Sound Corp. 2727 Mc Cone Avenue, Hayward, CA 94545. Ph (510) 732-1000. You are responsible for the cost of shipping the product to Earthquake Sound Corporation. (G) Disputes Resolution: All disputes - between clients and Earthquake Sound

Shipper claims regarding items damaged in transit must be presented to carrier. Earthquake Sound Corporation reserves the right to refuse improperly packed product. Original bill of sale must accompany product returned for service. We encourage you to include with the package a written description of the problem. Ship product to: Earthquake Sound Corp. 2727 Mc Cone Avenue, Hayward, CA 94545. Ph (510) 732-1000. You are responsible for the cost of shipping the product to Earthquake Sound Corporati

DBXI-15/15D #1 #1 Bass head design for competition #2 Port tuned design for deep bass #3 Sealed design for tight bass Ported box Recommendation: 3.5-4.2cu.ft. 22” 18” 22.5” 16.5” Sealed box Recommendation: 2.0-2.5cu.ft. 18” 18” 16” DBXI-15D Ported box Recommendation: 2.2-2.5cu.ft. 23” 18” 14” 9” DBXI-15D PORT (3”x12.5”x16.5”)Internal dimensionsDBXI-15D PORT (2”x16.5”x9”)Internal dimensions #4 #4 Passive tuned design for deep bass small volume VB = 2.5cu.ft. FB = optimized with SLAPS-15 passive D

(G) Disputes Resolution: All disputes - between clients and Earthquake Sound Corporation - resulting from the five (5) years limited warranty policy must be resolved according to the laws & regulations of the county of Alameda -California. Your subwoofer(s) be registered by returning the Product Registration card attached to this manual or by visiting Please also retain the bill of sale, which represents proof of purchase and helps expedite warranty issues. Specifications are subject to change w

Where Rt= Resistance seen by amplifier Series formula: Example for Dual-4 series 8-Ohm 4-Ohm VC. 4-Ohm VC. Example for single-4 4-Ohm Example Dual-4 Parallel 4-Ohm VC. 4-Ohm VC. 2-Ohm Study sample diagrambelow, then follow charts to the left. EARTHQUAKE SOUND • PARALLEL WIRING CONFIGURATIONS DBXI ENCLOSURE DESIGNS 6.417” 163mm 10.80” 274.5mm 9.84” 250mm 6.2 158.75mm5” DB IDBXI- 10D X 10 6.417” 163mm 12.91” 328mm 11.889” 302mm 6.75 171” .45mm DBXI-12 DBXI-12D Dimensions shown are external .75” MD

Sound pressure levels exceeding 85dB can be dangerous with constant exposure. Earthquake Sound Corporation does not assume liability for damages resulting from the direct use of DBXI or other Earthquake products , and urges users to play sound systems at moderate listening levels for every day use. DBXI DUAL & VOICE COIL SUBWOOFER SPECIFICATIONS DRIVER: DBXI-10 DBXI-12 DBXI-15DBXI-10D DBXI-12D DBXI-15D Free Air Resonance (Fs) 28 Hz 27 Hz 25 Hz 24 Hz 21 Hz 20 Hz Electrical “Q” (Qes) 0.497 0.497 0

Hayward, CA 94545.USA US Toll Free: 1-800-576-7944 | Tel: 510-732-1000 | Fax: 510-732-1095 Earthquake warrants the original purchaser that all Factory Sealed New Audio Products be free from defects in material and workmanship, under normal and proper use, for a period of ninety (90) days from the date of purchase (as shown on the original sales receipt with serial number affixed/written on it). The ninety (90) day warranty period is valid only if an authorized Earthquake dealer properly installs

1.5" 38.6mm Thiele & Small Parameters Resonant Frequency (fo) DC resistance (Re) Coil Inductance (Le) Mechanical Q (Qms) Electromagnetic Q (Qes) Total Q (Qts) 395Hz ±15% 6.5 Ohms 367.888m mH 3.896 1.662 1.165 Compliance Equivalent Volume (Vas) .75 liters / .0624 cu.ft. Mechanical Compliance of Suspension (Cms) 11.806mm/N BL Product (BL) 11.557 T-M Diaphragm Mass (Mmd) 12.001 grams Maximum Linear Excursion (Xmax) 1.6 mm Surface Area of Cone (Sd) 211.241cm Mounting Information Recommende