In this review, we will be comparing C 97 II and BW 603, two Passive Floor-standing speakers  from Jamo and Bowers Wilkins. 
                
            Let's have a brief look at the main features
            of Jamo C 97 II and B&W 603 first before getting into our more
            detailed comparison.
        
     
    
        
            Jamo C 97 II Key Specs
            
							
                                - 3-way Design
                                                                 							- 1"  Tweeter
 
                                                                - 6" Midrange
                                 - 3 x 6" Composite Woofer
 
                                - 32-24k Hz Frequency Response
 
                                - 89 dB Sensitivity
                                 - Impedance: 6ohms
                                 - Power Range:50-180watts
                                                                                                                                 - Weight:24.55kg
                                 - Dimensions (H x W x D): 1070.0" x 9-3/4" x 15-13/16"( 1070.0 x 248.0 x 402.0mm )
 
                                
            
         
        
            B&W 603 Key Specs
            
							
							- 3-way Design
                                                                                               -  1"  Tweeter
 
                                                                - 6" Midrange
                                 - 2 x 6.5" Paper Woofer
 
                                - 6" Midrange
                                 - 48-28k Hz Frequency Response
 
                                - 88.5 dB Sensitivity
                                 - Impedance: 8ohms
                                 - Power Range:30-200watts
                                                                                                                                 - Weight:24.14kg
                                 - Dimensions (H x W x D): 985.0" x 7.4" x 13.3"( 985.0 x 190.0 x 340.0mm )
 
                                
            
         
     
    
                    
        
             What size room are the Jamo C 97 II                and B&W 603 speakers good for?
            
                The size of the room in which you are planning to use these loudspeakers is an important decision
                factor. Here we have compared their suitability to various sizes of environments considering their size
                and max power parameters:
            
         
        
            
                
                    
                    
                        | Listening Environment* | 
                        Jamo C 97 II | 
                        B&W 603 | 
                    
                    
                    
                    
                        | Near-field | 
                        Bad | 
                        Bad | 
                    
                    
                        | Small Room | 
                        Poor | 
                        Poor | 
                    
                    
                        | Mid-size Room | 
                        Good | 
                        Good | 
                    
                    
                        | Large Room | 
                        Good | 
                        Good | 
                    
                    
                        | Very Large Room | 
                        Poor | 
                        Poor | 
                    
                    
                
             
         
        
             (* Approximate Room sizes: Small < 100sq. ft / 9 m2,
                Mid-size: 100-220 sq. ft / 9-20 m2, Large 220-400 sq. ft / 20-36 m2, Very Large: >
                400 sq. ft / 36 m2.
                Average Floor Height: 9" / 2.7m. Typical room sizes differ from country to country, and the actual
                listening experience changes depending on floor height, room shape, surface materials, listening
                position, speaker locations, etc.)
        
    
    
        In the following sections, we will get into more detail in order to better understand how the Jamo C 97 II and B&W 603 compare and hopefully end up with enough arguments to decide which one of these loudspeakers 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
        
             Both C 97 II and BW 603 are 3-way speakers.         
        
            
                
                    
                    
                        | Driver | 
                        Jamo C 97 II | 
                        B&W 603 | 
                    
                    
                    
                    
                        | 
                            Driver Setup
                         | 
                        
                            3-way
                         | 
                        
                            3-way
                         | 
                    
                                        
                        | 
                            Tweeter
                         | 
                        
                            1-inch
                         | 
                        
                            1-inch
                         | 
                    
                    
                        | 
                            Midrange
                         | 
                        
                            1 x 6-inch                         | 
                        
                            1 x 6-inch                         | 
                    
                    
                        | 
                            Woofer
                         | 
                        
                            3 x 6-inch
                         | 
                        
                            2 x 6.5-inch
                         | 
                    
                    
                
             
         
         C 97 II features a 1"   Tweeter , a 6" Midrange  and 3 x 6" Composite Woofer .  On the other hand, the BW 603 features a 1"   Tweeter , a 6" Midrange  and 2 x 6.5" Paper Woofer . 
     
    
         Frequency Response
        
            C 97 II has a frequency range of   32-24k Hz whereas BW 603 has a frequency range of 48-28k Hz.  With a minimum frequency of 32Hz, the C 97 II can go significantly deeper on the low side and provide stronger bass compared to the BW 603's min frequency of 48Hz. 
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 Floor-standing class in our database.         
     
    
        
            Low Frequency
            Floor-standing Speakers
            
            
            
            
            
         
        
            High Frequency
            Floor-standing Speakers
            
            
            
            
            
         
     
     None of these speakers achieves full range experience which is commonly agreed as 20Hz-20kHz. In order to achieve lower lows / deeper bass, we recommend you pair these with a subwoofer. Visit our Powered Subwoofers section to find out more about the available options.
    
         Impedance and Sensitivity
        
            C 97 II is a  6 ohms speaker compared to the BW 603 which has a nominal impedance of 8 ohms.  
These two speakers also have different sensitivity levels. C 97 II sensitivity is rated at  89 dB and the BW 603's is rated at 88.5 dB.         
        
        
            
                Sensitivity
                Floor-standing Speakers
                
                
                
                
                
             
         
    
            
            
            
 Power Range
            Power
                range is the range of input power in watts RMS that a loudspeaker is designed to handle. While using
            an amplifier within this range ensures the nominal performance , inputting a power that is higher than the
            max wattage can result in a damaged speaker.
            
C 97 II can handle a max power of   200 watts RMS from the amp the whereas C 97 II has a max power handling value of 180 watts RMS , 20 watts less than the BW 603.             
            Keep in mind that a higher max power handling value doesn't necessarily make that a louder speaker
                compared to a lower max handling speaker. Loudness or the sound level is also impacted by parameters
                such as Impedance, sensitivity and system efficiencies.
            
         
    
            
        
 Input Type and Bi-Amping / Bi-Wiring
        Both C 97 II and  BW 603 features dual binding post speaker terminals for bi-amping or bi-wiring.         
                    
                
                
                    Jamo C 97 II's Posts terminals  allows Bi-amping or bi-wiring                
            
            
                        
        
    
             Cabinet Type and Port Position
        
            Both C 97 II and  BW 603 have rear firing ports. Rear ported speakers generally need more room between the backside of the speaker and the wall compared to sealed and  front/bottom ported speakers. Placing the speakers too close to the walls may cause the bass to sound boomy.
 If you are limited in space and can't get the speakers away from the backwall, check our  Speakers with Front Firing Ports page.
        
            
    
 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 Jamo C 97 II's and B&W 603's external dimensions. Jamo C 97 II has external dimensions of 1070.0 x 248.0 x 402.0mm ( 42-1/8 x 9-3/4 x 15-13/16inch)  whereas B&W 603 has external dimensions of 985.0 x 190.0 x 340.0mm ( 38.7 x 7.4 x 13.3inch) .
 Jamo C 97 II is clearly the larger of the two speakers. Its body is 58mm wider, 85mm taller and 62mm deeper than B&W 603. 
    
        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 Jamo C 97 II is approximately 997.0cm2 / 154.5inch2 and          base area of the B&W 603 is approximately 646.0cm2 / 100.1inch2.         The C 97 II requires 54% more surface area than the BW 603 which gives it a small disadvantage on placement in tight spaces.      
 
        
        
        
        
        
Weight Comparison The weight of a loudspeaker can become an important factor if you need to move and reposition the unit often. Weight of a speaker can also "sometimes" be an indicator of the rigidity of the enclosure and the quality of the internal components used. The Jamo C 97 II weighs 24.55kg / 54lbs and the B&W 603 weighs 24.14kg / 53.1lbs. This makes the C 97 II 2% heavier than the BW 603. 
Here is a comparison of how C 97 II and BW 603's weights compare with the average, max and min weights in Passive Floor-standing class.
    
        Weight
        All Floor-standing Speakers
        
        
        
        
        
     
     
            
        
 What's in the Box of Jamo C 97 II? 
        Here are the items that are included inside the box of C 97 II:
        
Floorstanding loudspeakerGrille4 Outrigger feet4 Spikes (pre-installed on outrigger feet)4 Rubber feet8 Machine screws2 Jumper-straps (pre-installed)Hex-keyUser ManualImportant Safety InstructionsWarranty Information        
                
        
 What's in the Box of B&W 603? 
        Here are the items that come with the BW 603:
        
Floorstanding loudspeaker Grille Plinith (base) 2 Jumper-straps (pre-installed) 4 Rubber feet 4 Spike feet 4 Hex-nuts 4 Screws 4 Washers 4 Lock-washers Two-piece foam port plug Hex-key Manual Bowers & Wilkins brochure Warranty Information        
    
                    
                    
                    
                    
                        
                        
                            
                                                            
                                    
                                            Number of Woofers                                     | 
                                    
                                         3
                                        vs
                                         2
                                     | 
                                     More woofers | 
                                
                                                            
                                    
                                            Low Frequency Response                                     | 
                                    
                                         32 Hz
                                        vs
                                         48 Hz
                                     | 
                                     Generates deeper bass | 
                                
                                                        
                        
                    
                    
                        
                        
                            
                                                            
                                    
                                            Max Input Power                                     | 
                                    
                                         200 watts
                                        vs
                                         180 watts
                                     | 
                                     Handle more power  from your amplifier | 
                                
                                                            
                                    
                                            Nominal Impedance                                     | 
                                    
                                         8 ohms
                                        vs
                                         6 ohms
                                     | 
                                     Less selective with amplifiers | 
                                
                                                            
                                    
                                            Woofer Size                                     | 
                                    
                                         6.5 inches
                                        vs
                                         6 inches
                                     | 
                                     Larger woofer | 
                                
                                                            
                                    
                                            High Frequency Response                                     | 
                                    
                                         28k Hz
                                        vs
                                         24k Hz
                                     | 
                                     Generates higher frequency | 
                                
                                                            
                                    
                                            Height                                     | 
                                    
                                         985mm
                                        vs
                                         1070mm
                                     | 
                                     Easier to fit in smaller spaces | 
                                
                                                            
                                    
                                            Base Surface Area                                     | 
                                    
                                         646cm2
                                        vs
                                         997cm2
                                     | 
                                     Takes less floor space | 
                                
                                                        
                        
                    
                    
                        
			
			
				
					| General | 
					Jamo Concert 9 Series C 97 II | 
					Bowers & Wilkins 603 | 
				
				
					
						| Brand | 
						Jamo | 
						Bowers Wilkins | 
					
					
						| Speaker Type | 
						Floor-standing speaker | 
						Floor-standing speaker | 
					
                                        
                        | Power Range | 
                        50-180 watts | 
                        30-200 watts | 
                    
                    
                    
                                            
                            | Sensitivity | 
                            89 dB | 
                            88.5 dB | 
                        
                                                                
                            | Impedance | 
                            6 ohms | 
                            8 ohms | 
                        
                    
                    
                    
                        | Frequency Response | 
                        32-24k Hz | 
                        48-28k Hz | 
                    
                    
					
					
					Drivers | 
					 | 
					 | 
					
				
                    
                        | Woofer Quantity | 
                        3 | 
                        2 | 
                    
                
                    | Woofer Size | 
                    6" | 
                    6.5" | 
                
                    
                        | Woofer Composition | 
                        Composite | 
                        Paper | 
                    
                                    
                        | Woofer Surround Material | 
                        Rubber | 
                        Rubber | 
                    
                
					
                        | Tweeter Size | 
                        1" | 
                        1" | 
                    
                
					
					
                    
                        | Aimable Tweeter | 
						No | 
						No | 
                    
					
					
                        | Midrange Driver | 
                        6" | 
                        6" | 
                    
                
                                    
                        | Firing Direction | 
                        rear | 
                        rear | 
                    
                
                
					
					Physical Specs | 
					 | 
					 | 
					
					
					
					
                        | Height | 
						1070.0mm (42.1") | 
                        985.0mm (38.8") | 
                    
                
                    | Width | 
                    248.0mm (9.8") | 
                    190.0mm (7.5") | 
                
                
                    | Depth | 
                    402.0mm (15.8") | 
                    340.0mm (13.4") | 
                
					
                					
                        | Weight | 
						24.55kg (54lbs) | 
                        24.14kg (53.1lbs) | 
                    
                					
                    | Enclosure | 
                    Bass Reflex | 
					Bass Reflex | 
					
                                    
                        | Finish | 
                        MDF/Wood-grain vinyl | 
                        MDF/Vinyl | 
                    
                
                                    
                        | Available Colors | 
                        Black | 
                        Black, White, Oak | 
                    
                
                
                                                    
                        | Grille | 
                        Yes | 
                        Yes | 
                    
                					
                        | Moisture Resistancy | 
                        No | 
                        No | 
                    
                
					Connections | 
					 | 
					 | 
					
                                                    
                        | Biamp Inputs | 
                        Yes | 
                        Yes | 
                    
                
                                                                                                                                
                
				Other | 
					 | 
					 | 
					
					
					
                    | Parts Warranty | 
                    5 Years | 
					5 Years | 
					
					
					
                    | Labor Warranty | 
                    5 Years | 
					5 Years |