In this review, we will be comparing PB-1000 and C 912, two Powered Subwoofer speakers  from SVS and Jamo. Being Powered subwoofers, they both have built-in amplifiers so you don't need an external power amp or an integrated amp to power them.         Let's have a brief look at the main features of SVS PB-1000 and Jamo C 912 first before getting into our more detailed comparison.
        
     
    
        
            In the following sections, we will get into details in order to better understand how the SVS PB-1000 and Jamo C 912 compare and hopefully end up with enough arguments to decide which one of these subwoofers is the better choice for you.
        
        
            
            
            **This post contains affiliate links, and I will be compensated if you make a purchase after clicking through my links. As an Amazon Associate I earn from qualifying purchases.
            
            
         
         Drivers
        
            The efficiency of a subwoofer  is directly proportional to the total radiating are squared hence the woofer quantity and diameter.Both SVS PB-1000and Jamo C 912 have a  single woofer setup however the SVS PB-1000's woofer is 10-inch whereas the Jamo C 912 features a 12-inch woofer.         
         Frequency Response
        
            PB-1000 has a frequency range of   19-270 Hz whereas C 912 has a frequency range of 29-125 Hz.  With a minimum frequency of 19Hz, the PB-1000 can go significantly deeper on the low side and provide stronger bass compared to the C 912's min frequency of 29Hz. 
Below graphs depict how these two speakers compare with the max, min and average values of the Min and Max Frequencies of other speakers in the Subwoofer class in our database.         
        
            
                Low Frequency
                Subwoofer Speakers
                
                
                
                
                
             
            
                High Frequency
                Subwoofer Speakers
                
                
                
                
                
             
         
        
        
        
        
             Cabinet Type
            
                 Both SVS PB-1000 and Jamo C 912 have Bass Reflex type cabinets. Bass Reflex type subwoofers (aka Ported, Vented or Reflex Port) have enclosures that uses a port, hole or vent cut into the cabinet. Ported designs are generally more efficient than the Sealed designs.             
        
                
        
 Physical Specs 
		 Size of a speaker can sometimes become an important decision factor due to space constraints or in some cases purely for esthetic reasons. In this section, we are going to compare SVS PB-1000's and Jamo C 912's external dimensions. SVS PB-1000 has external dimensions of 480.0 x 381.0 x 532.0mm ( 18-7/8 x 15 x 20-15/16inch)  whereas Jamo C 912 has external dimensions of 461.0 x 358.0 x 507.0mm ( 18-1/8 x 14-1/16 x 19-15/16inch) .
 SVS PB-1000 is clearly the larger of the two speakers. Its body is 23mm wider, 19mm taller and 25mm deeper than Jamo C 912. 
		
			Below you can see the front view size comparison of SVS PB-1000 and Jamo C 912 in scale.        
    
                
    
        Comparison image of SVS PB-1000 and Jamo C 912 Size and External Dimensions    
    
    
        Base Surface Area Comparison
        Base surface area of a loudspeaker may become a  determining factor when the space in your room or desk is limited.
        The base surface area of the SVS PB-1000 is approximately 2026.9cm2 / 314.2inch2 and          base area of the Jamo C 912 is approximately 1815.1cm2 / 281.3inch2.         The PB-1000 requires 12% more surface area than the C 912 which gives it a small disadvantage on placement in tight spaces.      
 
        
        
        
        
        
Weight Comparison The weight of a subwoofer may become an important factor if you need to move and reposition the unit often to find the optimal positioning, also known as 'Subwoofer Crawling'. The SVS PB-1000 weighs 20.91kg / 46lbs and the Jamo C 912 weighs 18.98kg / 41.8lbs. This makes the PB-1000 10% heavier than the C 912. 
Here is a comparison of how PB-1000 and C 912's weights compare with the average, max and min weights in Powered Subwoofer class.
    
        Weight
        All Subwoofer Speakers
        
        
        
        
        
     
     
                    
            
 What's in the Box of SVS PB-1000? 
            Here are the items that are included inside the box of PB-1000:
            
Powered subwooferGrille (installed)6-feet AC power cordOwners ManualImportant Safety Instructions            
            
            
 What's in the Box of Jamo C 912? 
            Here are the items that come with the C 912:
            
Powered subwooferGrille6-feet AC power cordUser ManualImportant Safety InstructionsWarranty Information            
        
     
                    
                                        
                    
                        
                        
                            
                                                            
                                        Low Frequency Response | 
                                    
                                         19 Hz
                                        vs
                                         29 Hz
                                     | 
                                     Generates deeper bass | 
                                
                                                            
                                        High Frequency Response | 
                                    
                                         270k Hz
                                        vs
                                         125k Hz
                                     | 
                                     Generates higher frequency | 
                                
                                                        
                        
                    
                    
                        
                        
                            
                                                            
                                        Woofer Size | 
                                    
                                         12 inches
                                        vs
                                         10 inches
                                     | 
                                     Larger woofer | 
                                
                                                            
                                        Height | 
                                    
                                         461mm
                                        vs
                                         480mm
                                     | 
                                     Easier to fit in smaller spaces | 
                                
                                                            
                                        Base Surface Area | 
                                    
                                         1815cm2
                                        vs
                                         2026cm2
                                     | 
                                     Takes less floor space | 
                                
                                                            
                                        Price per pair* | 
                                    
                                         229USD
                                        vs
                                         499USD
                                     | 
                                     costs less (*prices may change depending on the seller, location and time) | 
                                
                                                            
                                       Wireless Operation | 
                                    
                                         Optional
                                        vs
                                         No
                                     | 
                                     Connect your subwoofer to your system wireless | 
                                
                                                        
                        
                    
                    
                        
			
			
				
					| General | 
					SVS PB-1000 | 
					Jamo C 912 | 
				
				
					
						| Brand | 
						SVS | 
						Jamo | 
					
					
						| Speaker Type | 
						Powered Subwoofer | 
						Powered Subwoofer | 
					
                    
                                            
                            | Max Amplifier Output | 
                            300 watts | 
                            200 watts | 
                        
                    
                                        
                    
                    
                        | Frequency Response | 
                        19-270 Hz | 
                        29-125 Hz | 
                    
                                        Amplifier | 
                     | 
                     | 
                
                                    
                        | Watts RMS (Continuous) | 
                        300-watt RMS | 
                        200-watt RMS | 
                    
                
                                    
                        | Watts Peak (Max) | 
                        n/a | 
                        400-watt RMS | 
                    
                
                
                
                
					
					
					Drivers | 
					 | 
					 | 
					
				
                    
                        | Woofer Quantity | 
                        1 | 
                        1 | 
                    
                
                    | Woofer Size | 
                    10" | 
                    12" | 
                
                    
                        | Woofer Composition | 
                        Fiber-composite | 
                        IMG | 
                    
                
					
                        | Tweeter Size | 
                        - | 
                        - | 
                    
                
					
					
                    
                        | Aimable Tweeter | 
						No | 
						No | 
                    
					
					
                        | Midrange Driver | 
                        No | 
                        No | 
                    
                                    
                        | Crossover Frequency | 
                        50-160 Hz and 80 Hz | 
                        n/a | 
                    
                
                                    
                        | Firing Direction | 
                        front | 
                        front | 
                    
                
                
					
					Physical Specs | 
					 | 
					 | 
					
					
					
					
                        | Height | 
						480.0mm (18.9") | 
                        461.0mm (18.1") | 
                    
                
                    | Width | 
                    381.0mm (15") | 
                    358.0mm (14.1") | 
                
                
                    | Depth | 
                    532.0mm (20.9") | 
                    507.0mm (20") | 
                
					
                					
                        | Weight | 
						20.91kg (46lbs) | 
                        18.98kg (41.8lbs) | 
                    
                					
                    | Enclosure | 
                    Bass Reflex | 
					Bass Reflex | 
					
                
                
                
                                                    
                        | Grille | 
                        Yes | 
                        Yes | 
                    
                					
                        | Moisture Resistancy | 
                        No | 
                        No | 
                    
                
					Connections | 
					 | 
					 | 
					
                                
                                                                                                                                
                
				Other | 
					 | 
					 | 
					
					
					
                    | Parts Warranty | 
                    5 Years | 
					2 Years | 
					
					
					
                    | Labor Warranty | 
                    5 Years | 
					2 Years |