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POWERBASS AUTOSOUND LIMITED WARRANTY POLICY

PowerBass USA, Inc. offers limited warranty on PowerBass products under normal use on the following terms:

PowerBass  Autosound  Speakers  are  to  be  free  of  defects  in  material  and  workmanship  for  a 
period of one (1) year.

This warranty applies only to PowerBass products sold to consumers by Authorized PowerBass Dealers in the United States 
of America.  Products purchased by consumers from a PowerBass dealer in another country are covered only by that coun-
try’s Distributor and not by PowerBass USA.

This warranty covers only the original purchaser of PowerBass product. In order to receive service, the purchaser must 
provide PowerBass with a valid purchase receipt from an authorized reseller stating the consumer name, dealer, product 
and date of purchase.

Products found to be defective during the warranty period will be repaired or replaced (with a product deemed to be equiva-
lent) at PowerBass’s discretion and will not be liable for incidental or consequential damages. PowerBass will not warranty 
this product under the following situations:

 

• Speakers received with bent frames or water damage

 

• Abuse such 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 including warranties of fitness for use and merchantability are limited in duration to the period of 
the express warranty set forth above.  Some states do not allow limitations on the length of an implied warranty, so this 
limitation may not apply.  No person is authorized to assume for PowerBass any other liability in connection with the sale 
of this product.

Please call (909) 993-5399 for PowerBass Customer Service.

  You must obtain an RA# (Return Authorization Number) 

to return any product to PowerBass. 

The RA number must be prominently marked on the outside of the shipping 

carton or the delivery will be refused.

  Please pack your return carefully; we are not responsible for items damaged in 

shipping.  Return the defective product along with a copy of the original dated retail sales receipt, plus $9.00 for handling 
and diagnostic evaluation to:

PowerBass USA, Inc., 
Attn: Returns (RA#__________)
13936 Mountain Avenue, Chino, CA  91710

Residents of HI, AK and US territories will be charged for return shipping.  All inquires regarding service and warranty should 
be sent to the above address.

Removed or altered serial numbers will void this warranty

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Summary of Contents for Autosound M-104

Page 1: ...re 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 dated...

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

Page 3: ...Chrome Push Input Terminals These high strength compression loaded speaker terminals ensure maximum current and power transfer Massive Motor Structure Just like a cars engine the motor structure of a...

Page 4: ...e 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 o...

Page 5: ...of two single 4 ohm subs 2 ohms Parallel wiring of four single 4 ohm subs 1 ohms Series Parallel wiring of four single 4 ohm subs 4 ohms Single 4 ohm woofer Amplifier STANDARD PARALLEL Amplifier PARA...

Page 6: ...n 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 extensio...

Page 7: ...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 8: ...r 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 yo...

Page 9: ...g 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 10: ...ntil 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 instal...

Page 11: ...2 2 161 2 236 8 188 9 Mms g 103 4 109 139 1 165 204 2 240 1 BL 13 7 8 8 13 6 9 86 14 4 11 2 Qms 4 14 3 4 3 6 3 3 3 9 3 2 Qes 0 4 0 53 0 46 0 54 0 48 0 49 Qts 0 37 0 46 0 41 0 49 0 43 0 45 No 0 325 0 2...

Page 12: ...H x D 1728 Please contact your authorized PowerBass Autsound dealer for other designs and specifications Even though these subwoofers can be used in a ported enclosure PowerBass recommends a sealed e...

Page 13: ...33Hz 33Hz Pe Watts Rms 100 325 Watts 100 325 Watts Subsonic Filter Setting If Applicable 34Hz 34Hz M 124 Optimum Sealed Vol Standard Metric Gross Vb Internal 1 25 cu ft 35 4 Liters F3 3dB Cutoff 42Hz...

Page 14: ...ff 32Hz 32Hz Pe Watts Rms 100 375 Watts 100 375 Watts Subsonic Filter Setting If Applicable 33Hz 33Hz M 154 Optimum Sealed Vol Standard Metric Gross Vb Internal 3 75 cu ft 106 19 Liters F3 3dB Cutoff...

Page 15: ...150 425 Watts Acceptable Volumes 3 55 19 cu ft 99 11 538 02 Liters Optimum Ported Vol Standard Metric Gross Vb Internal 6 0 cu ft 169 9 Liters Circular Port 5 x 2 75 D 12 7cm x 6 99cm D Fb Box Tuning...

Page 16: ...without annoy ing blaring or distortion and most importantly without affecting your sensitive hearing Sound can be deceiving Over time your hearing comfort level adapts to higher volumes of sound So w...

Page 17: ...such 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 warrantie...

Page 18: ...PowerBass Autosound A division of PowerBass USA Inc 13936 Mountain Avenue Chino CA 91710 Tel 909 993 5399 Fax 909 993 5393 www powerbassusa com...

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