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WIRING GUIDELINES

It is highly recommended that you seek an authorized PowerBass dealer to properly setup, wire 
and install your woofers for maximum performance. 

There are multiple ways to wire your woofers depending on your amplifier and system configuration. The use 
of multiple voice coils offers you more versatility in system configuration.  It is important to know the limits of 
your amplifier to optimize its performance.  It is always better to use your subwoofer in a mono / bridged mode 
if your amplifier has the capabilities.  There are basically four different types of wiring configurations: Series, 
Parallel, Series-Parallel or Parallel-Parallel.  It is possible to change the impedance or load by how the speakers 
are to be wired and by the quantity of woofers used.

Parallel wiring a dual 4 ohm sub = 2 ohm

PARALLEL

SERIES

DUAL VOICE COIL WIRING

Parallel-Parallel wiring two dual 4 ohm subs = 1 ohm

Series-Parallel wiring two dual 4 ohm subs = 4 ohm

Series wiring a dual 4 ohm sub = 8 ohm

5

PARALLEL-PARALLEL

Amplifier

SERIES-PARALLEL

Amplifier

Amplifier

Amplifier

NOTE: Never connect only one coil of a Dual Voice Coil (DVC) speaker. BOTH voice coils must be 
connected to the amplifier

Summary of Contents for L-1004D

Page 1: ...ation Guide Please read through this manual to familiarize yourself with your new speakers Should your PowerBass Autosound speaker components ever require service you will need to have the original da...

Page 2: ...ng enjoyment from your superior WOOFER investment For maximum performance we recommend that you have your new PowerBass L series Woofer installed by an Authorized PowerBass Dealer To learn more about...

Page 3: ...porated in the basket design allowing cooler air to run over the voice coil and keep the motor structure from overheating Cooler woofers mean better bass Chrome Push Input Terminals These high strengt...

Page 4: ...if your amplifier has the capabilities There are basically four different types of wiring configurations Series Parallel Series Parallel or Parallel Parallel It is possible to change the impedance or...

Page 5: ...Sealed boxes typically provide the best musical detail and definition A well designed sealed enclosure will exhibit smooth frequency response with excellent sound quality and great low bass extension...

Page 6: ...rt placement to coincide on the same panel or baffle that the subwoofer resides on BANDPASS ENCLOSURE The most common band pass enclosure is a combination of a sealed and a vented enclosure working to...

Page 7: ...than any other way 4 Where possible run your Speakers in mono instead of stereo Most bass is reproduced in mono so there is less chance of any cancellation if played in mono 5 Where possible wire you...

Page 8: ...on whether the cabinet is to be permanently installed or portable This principle applies to any walls of the enclosure spanning more than 18 long Any braces should also be liberally glued or screwed...

Page 9: ...til final installation and always rest it with the cone facing up Never use force when installing a speaker Locate all fuel lines brake lines oil lines and electrical cables when planning your install...

Page 10: ...Hz 33 30 27 SD sqCM 330 490 780 Vas Ltr 32 3 60 6 111 Cms M N 208 6 164 137 4 Mms g 117 3 135 7 263 5 BL 9 1 9 5 11 3 Qms 4 4 3 7 5 14 Qes 0 43 0 56 0 54 Qts 0 39 0 49 0 47 No 0 24 0 38 0 36 Spl dB 91...

Page 11: ...ported enclosure PowerBass recommends a sealed enclosure for optimum performance and sound quality L 1004D Optimum Sealed Vol Standard Metric Gross Vb Internal 0 75 cu ft 21 24 Liters Fc resonance fre...

Page 12: ...ts Rms 100 400 Watts 100 400 Watts Acceptable Volumes 0 75 2 25 cu ft 21 24 63 7 Liters Optimum Ported Vol Standard Metric Gross Vb Internal 2 25 cu ft 63 7 Liters External Dimensions of the enclo sur...

Page 13: ...tts Rms 150 500 Watts 150 500 Watts Acceptable Volumes 1 0 3 5 cu ft 28 32 99 12 Liters Optimum Ported Vol Standard Metric Gross Vb Internal 3 25 cu ft 92 04 Liters External Dimensions of the enclo su...

Page 14: ...ze the fun and excitement your equipment offers PowerBass and the Consumer Electronics Association CEA want you to get the most out of your equipment by playing at a safe level One that lets the sound...

Page 15: ...ch as holes in the cone surround or ripped spider Voice coil damage due to amplifier clipping or distortion Product that has not been installed according to this owners manual Any implied warranties i...

Page 16: ...PowerBass Autosound A division of PowerBass USA Inc 2133 South Green Privado Ontario CA 91761 Tel 909 923 3868 Fax 909 923 8048 www powerbassusa com...

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