JazzSpeakers ROCCO 5.1
   
    
  Introduction
  Reviewing 
    various computer products gives me great pleasure. Strangely enough, this 
    is the first test of an item that can't be purchased in the U.S. The ROCCO 
    5.1 surround sound speakers offer an overwhelming array of bells and whistles, 
    but you must live in Europe, Asia or South America to "ring dem bells." 
    Thanks goes to JazzSpeakers for supplying the review sample.
  Plastered 
    on many a speaker box these days is a quickly becoming ubiquitous phrase, 
    "perfect for Sony's Playstation 2." While the 5.1's weren't tested 
    with that hardware a comprehensive setup, consisting of multi-thousand dollar 
    A/V high end reference components was used. The center channel speaker/controller/amp 
    unit proved impossible to properly utilize in a typical four plus channel 
    computer gaming rig.
   
     
      
         
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             Factory 
              Specifications  
           | 
           
             The 
              Unit  
           | 
        
         
            
            
              - Power Output: 
                2500 Watts PMPO
 
              - Dolby Digital 
                5.1, Dolby Pro Logic, 2 Channel Stereo
 
              - Frequency 
                Response: 50Hz-20KHz
 
              - 4" Subwoofer, 
                3" Satellites, Dual 3" Center Channel Drivers
 
              - Impedance: 
                4 Ohms
 
              - Wireless 
                Remote Control
 
              - MSRP: $199 
                USD
 
             
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  Description 
    & Specifications
  Consisting 
    of four satellites, subwoofer, dual center channel module and remote control, 
    this top-o-the-line offering from JazzSpeakers 
    sports a sleek although sloppily molded design. Removing the myriad of pieces 
    from the well packaged box proved moderately disappointing.
  The subwoofer 
    box, which can be plainly seen by clicking the thumbnail to the right, has 
    a giant slit right down the middle. On its outside edges near its top are 
    oval shaped rubber bumpers as if the sub might need to be protected due to 
    the occasional knocking of it against a wall. 
  The dual 
    center channel control module houses all the amplifiers and circuitry required 
    to deliver three primary types of audio compatibility. Dolby Digital 5.1, 
    Dolby Pro Logic, and 2 Channel Stereo cover every audio nut's need I can think 
    of at the moment. All three modes were utilized during the evaluation period.
  The rear 
    speakers could be placed on small plastic stands that would elevate the 3 inch 
    drivers to ear level, but those are additional options. For a picture of those 
    pieces please visit JazzSpeakers.
  A huge 2500 
    Watts PMPO pink oval hints as being the ROCCO's stronger selling point. 
    The FTC doesn't recognize the PMPO (peak 
    music power output) specification as no repeatable standards have ever been 
    set into stone. This rather obnoxious statement of a completely untestable 
    parameter is an insult to today's engineers. An average U.S. 120V outlet is 
    fused for 15A (some 20A or more) and that would equate to 1800 Watts. For 
    more realistic power specs, continue to the next page for the objective results.
  Objective 
    Measurements
  Data acquired 
    and reported of this type is done without any opinion or bias whatsoever. 
    For a quickie brush up course on audio terminology and measurements, point 
    your browser to the Audio 
    Reproduction Systems article.
  Subwoofer
  Woofer 
    Impedance 
  
     
      |  
         Frequency 
          (Hz) 
       | 
       
         Voltage 
          (mV) 
       | 
       
         Current 
          (mA) 
       | 
       
         Impedance 
          (Z) 
       | 
    
     
      |  
         75 
       | 
       
         219 
       | 
       
         12.6 
       | 
       
         17.3 
       | 
    
     
      |  
         100 
       | 
       
         202 
       | 
       
         22.6 
       | 
       
         8.94 
       | 
    
     
      |  
         125 
       | 
       
         194 
       | 
       
         27.9 
       | 
       
         6.95 
       | 
    
  
  