In this review, we will be comparing Arena 6IW and R-5650-S II, two Passive In-wall speakers  from JBL and Klipsch. 
                
            Let's have a brief look at the main features
            of JBL Arena 6IW and Klipsch R-5650-S II first before getting into our more
            detailed comparison.
        
     
    
        
            JBL Arena 6IW Key Specs
            
							
                                - 2-way Design
- 1" Soft-Dome Tweeter
- 6.5" Polycellulose Woofer
- 38-20kHz Frequency Response
- 86 dB Sensitivity
- Impedance: 8ohms
- Power Range:up to 80watts
- Dimensions (H x W x D): 250.0" x 7.2500" x 3.4375"( 250.0 x 185.0 x 88.0mm )
 
        
            Klipsch R-5650-S II Key Specs
            
							
							- 2-way Design
-  1" Horn-loaded dome Tweeter
- 6.5" Cerametallic Woofer
- 60-23kHz Frequency Response
- 92 dB Sensitivity
- Impedance: 8ohms
- Power Range:up to 50watts
- Dimensions (H x W x D): 331.0" x 8.0000" x 3.6875"( 331.0 x 204.0 x 94.0mm )
 
     
    
                    
        
             What size room are the JBL Arena 6IW                and Klipsch R-5650-S II 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* | JBL Arena 6IW | Klipsch R-5650-S II | 
                    
                    
                    
                        | Near-field | Average | Good | 
                    
                        | Small Room | Good | Good | 
                    
                        | Mid-size Room | Average | Average | 
                    
                        | Large Room | Poor | Poor | 
                    
                        | Very Large Room | Bad | No way | 
                    
                
             
         
        
             (* 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 JBL Arena 6IW and Klipsch R-5650-S II 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 Arena 6IW and R-5650-S II are 2-way speakers.         
        
            
                
                    
                    
                        | Driver | JBL Arena 6IW | Klipsch R-5650-S II | 
                    
                    
                    
                        | Driver Setup | 2-way | 2-way | 
                                        
                        | Tweeter | 1-inch | 1-inch | 
                    
                        | Midrange | - | - | 
                    
                        | Woofer | 1 x 6.5-inch | 1 x 6.5-inch | 
                    
                
             
         
         Arena 6IW features a 1"  Soft-Dome Tweeter  and 1 x 6.5" Polycellulose Woofer .  On the other hand, the R-5650-S II features a 1"  Horn-loaded dome Tweeter  and 1 x 6.5" Cerametallic Woofer . 
     
    
         Frequency Response
        
            Arena 6IW has a frequency range of   38-20kHz whereas R-5650-S II has a frequency range of 60-23kHz.  With a minimum frequency of 38Hz, the Arena 6IW can go significantly deeper on the low side and provide stronger bass compared to the R-5650-S II's min frequency of 60Hz. 
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 In-wall class in our database.         
     
    
        
            Low Frequency
            In-wall Speakers
            
            
            
            
            
         
        
            High Frequency
            In-wall 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
        
            Arena 6IW and  R-5650-S II have the same Impedance of 8 ohms  but where they differ is the sensitivity levels. Arena 6IW sensitivity is rated at  86 dB and the R-5650-S II's is at 92 dB.  This 6 dB difference makes the Klipsch R-5650-S II a more sensitive speaker compared to JBL Arena 6IW, hence will play louder  with the same amount of watts.         
        
        
            
                Sensitivity
                In-wall 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.
            
Arena 6IW can handle a max power of   80 watts RMS from the amp the whereas R-5650-S II has a max power handling value of 50 watts RMS, 30 watts less than the Arena 6IW.             
            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
        Arena 6IW features Spring Posts type posts and R-5650-S II has a Spring Posts type posts. None of these speakers feature bi-amping/bi-wiring.         
                        
        
    
            
    
 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 JBL Arena 6IW's and Klipsch R-5650-S II's external dimensions. JBL Arena 6IW has external dimensions of 250.0 x 185.0 x 88.0mm ( 9.8125-inch x 7.2500-inch x 3.4375-inch)  whereas Klipsch R-5650-S II has external dimensions of 331.0 x 204.0 x 94.0mm ( 13.0000-inch x 8.0000-inch x 3.6875-inch) .
 Klipsch R-5650-S II is clearly the larger of the two speakers. Its body is 19mm wider, 81mm taller and 6mm deeper than JBL Arena 6IW. 
        
        
        
        
        
            
        
 What's in the Box of JBL Arena 6IW? 
        Here are the items that are included inside the box of Arena 6IW:
        In-wall loudspeakerGrille2 Scrim cloths (1 installed)Mounting TemplateInstruction Manual        
                
        
 What's in the Box of Klipsch R-5650-S II? 
        Here are the items that come with the R-5650-S II:
        In-wall speakerWhite metal mesh grilleCardboard templateOwners Manual (En/Fr/Sp)