Monitor Audio IWS-10 is a 1-way Passive In-wall In-wall speaker  by Monitor Audio.  It features a   Tweeter and 1 x 10" C-CAM/RDT Woofer.  The speaker has a frequency range of 28-120Hz and a sensitivity of 86 dB. Monitor Audio IWS-10 has an MSRP of 575$ per pair. 
         Room Size Suitability  
    The size of the room where you plan to use the Monitor Audio IWS-10 is a crucial factor in your decision. We have assessed its suitability for various room sizes based on its dimensions and maximum power output:
    
        
            
                
                
                    | Listening Environment* | Suitability | 
                
                
                | Near-field | Poor | 
                | Small Room | Average | 
                | Mid-size Room | Good | 
                | Large Room | Average | 
                | Very Large Room | 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.)
    
                                
                                    
                                    
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                                     Frequency Response of the Monitor Audio IWS-10 Speaker
Monitor Audio IWS-10 has a  Frequency response range of 28-120Hz at ±3dB and Power Range of 150 watts. With a minimum frequency of 28 Hz, IWS-10 delivers deep bass that will likely satisfy most listeners, especially those who enjoy music. However, movie enthusiasts and music fans who prefer a full range of sound may still benefit from adding a subwoofer.
 To focus on the subwoofers that are in a similar price range with Monitor Audio IWS-10, check out the Powered Subwoofers under $750. Alternatively, find the Full list of Powered Subwoofers regardless of the price.
Here we have a comparison of how IWS-10's Low and High frequency values compare with the average, max and min Low and High frequency values in its class.
    
        Low Frequency
        In-wall Speakers
        
        
        
        
     
    
        High Frequency
        In-wall Speakers
        
        
        
        
     
 
    
    
    
        
        
    
 Impedance and Sensitivity
Monitor Audio IWS-10's nominal impedance level is 
8 ohms  and has a sensitivity of 
86 dB.     
    
        Sensitivity
        In-wall Speakers
        
        
        
        
     
 
    
    
 
        8 Ohms is pretty much the standard nominal impedance amongst stereo speakers and amplifiers so Monitor Audio IWS-10 is not considered a difficult to drive speaker from nominal Impedance perspective. 
Sensitivity
 With a sensitivity level of only 86 dB, Monitor Audio IWS-10 is  a difficult to drive speaker from Sensitivity perspective, make sure to choose an amplifier with a high output if you like listening to your music at high volume levels.   You may especially have a hard time using Tube amplifiers which are traditionally very low power compared to Class A/B or Class D amps.     
Check the amplifiers that are in a similar price range to the Monitor Audio IWS-10:
 Input Type
IWS-10 features Spring post  type connectors. Bi-amping and Bi-wiring are not possible. 
Monitor Audio IWS-10  External Dimensions and Weight
Monitor Audio IWS-10 has  external dimensions of (Height x Width x Depth) 11.0000-inch x 11.0000-inch x 3.5625-inch (280.0 x 280.0 x 91.0mm ). 
    Base Surface Area
    Base surface area of a loudspeaker may become a  determining factor when the space in your room or desk is limited.
    The base area of Monitor Audio IWS-10 is approximately 254.8cm2 / 39.5inch2. 
    
 Cabinet type and Materials
Monitor Audio IWS-10 has a 
In-wall type cabinet. 
 
    
 What's in the Box of Monitor Audio IWS-10? 
    Here are the items that are included inside the box of IWS-10: 
    
In-wall passive subwooferGrille (pre-installed)Installation GuideTemplateImportant Safety Instructions    
    
    
 Recommended Accessories
 Here is a list of accessories that we think you may need for the Monitor Audio IWS-10.
     Warranty
    Lifetime of parts warranty and  Lifetime of labor warranty is generally provided by the manufacturer.