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AUDIOphile
1" NEODYMIUM TWEETER
WITH HIGH PASS CROSSOVER
ND4-XFM & ND8-XFM
Owner's Manual
® ®
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Dear Customer, Congratulations on your purchase of America’s finest brand of car audio components. 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 Rock- ford Fosgate product in
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TABLE OF CONTENTS Specifications ................................................................................... 1 ND4-XFM / ND8-XFM Neodymium Tweeter Contents..................... 1 Introduction ...................................................................................... 2 Design and Features ........................................................................ 2 TX-184N/188N High Pass Crossover ........................................ 2 ND4 and ND8 Neodymium Tweeters .........
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SPECIFICATIONS ND4 Power Rating 50 Watts Impedance with crossover 4Ω Sensitivity with input of 1 Watt measured at 1 meter 91dB Resonance Frequency 1,500Hz Frequency Response 3,000 - 20,000Hz ND8 Power Rating 50 Watts Impedance with crossover 8Ω Sensitivity with input of 1 Watt measured at 1 meter 91dB Resonance Frequency 1,500Hz Frequency Response 3,000 - 20,000Hz TX-184N/TX-188N Crossover Network 3rd order Butterworth Alignment Crossover Frequency 4,000Hz High Pass Crossover Slope 18dB/
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INTRODUCTION This manual provides information on the features and installation of the ND4 and ND8 Neodymium Tweeters and high pass crossovers. We suggest you save this manual for future reference. We strongly recommend you have your Authorized Rockford Fosgate Dealer install the ND4/ND8 Neody- mium tweeters. If you do choose to install the tweeters yourself, please be sure to read the entire manual before beginning. DESIGN AND FEATURES This section describes the design and features of each com
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ND4 AND ND8 NEODYMIUM TWEETERS ing holes on either side of the enclosure. The ND4 and ND8 Neodymium Tweeters are designed for optimum smooth frequency response. This goal, as with all other Rockford Fosgate products, is achieved by utilizing "high quality, high-end" components. Neodymium Magnets The high ionic compound of neodymium enables a smaller tweeter magnet assembly to be used as op- posed to the much larger ferrite magnets that are com- monly used in speaker manufacturing. Ferrofluid™ Co
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FLUSH MOUNTING THE ND4 /ND8 TWEETERS The following instructions explain how to mount the ND4/ND8 Tweeters in a flush mount application. 1. Cut a 2-1/8" (54mm) diameter mounting hole. 2. With the keyway pointing up, insert the flush mount cup into the hole as shown in the following diagram. Bend back the retaining tabs to secure in place. With the wires inserted through the key hole, insert the tweeter into the bracket and turn clockwise to Front View Back View Hook up wires Key turned and locked
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SURFACE MOUNTING THE ND4 /ND8 TWEET- ERS The following instructions explain how to surface mount the ND4/ND8 Tweeters. 1. Place the mounting plate on the surface that the tweeter will be mounted to. Mark two (2) oppos- ing mounting holes and the center wire access hole. 2. Drill a 1/4 inch (6.4mm) hole for the wire access. Drill two (2) 1/8 inch (3mm) holes for the mount- ing screws. 3. Route the hook up wire through the center hole. 4. Place the mounting plate in position by threading the hook-
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WIRING THE ND4/ND8 NEODYMIUM TWEETER TX-184N/188N TX184N/188N Input Output + – + – > – + Input > from To ND4/ND8 Amplifier lock in place. Note: The color coded wire is connected to the positive (+) terminal on 6 > >
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REPLACING THE ND4/ND8 DOME Disassembly both the ND4 and ND8. 1. Gently remove tweeter assembly from mounted location. 2. Disconnect the tweeter wire harness, at the .110 Fastons end, from the filter network wire har- ness. 3. Remove the "strain relief clip" from the back of the tweeter assembly. 4. Carefully grasp one of the wires leading into the Magnet Enclosure and gently pull it straight out. Repeat for the other wire. 5. Carefully remove the replacement Coil/Dome Assembly from the Transport
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dome. 3. Once the replacement Coil/Dome Assembly and Magnet Enclosure are together, gently pull the voice coil wires extending out from the bottom of the Magnet Enclosure until any extra slack has been eliminated. Wrap the voice coil wires around the edge of the Magnet Enclosure away from the metal parts. Make sure that the Coil/Dome Assem- bly is seated firmly in place by pressing lightly on the Gasket along its perimeter. 4. Affix the replacement Adhesive Ring around the Gasket, extending
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ND4/ND8 NEODYMIUM ASSEMBLY DIAGRAM 9
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WARRANTY 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 does not cover abuse or installat
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Rockford Fosgate A Division of Rockford Corporation 546 South Rockford Drive Tempe, Arizona 85281 U.S.A. In U.S.A. (602) 967-3565 In Canada, call Korbon (416) 567-1920 In Europe, Fax (49) 4207-801250 CP-8675 (6/93)
