Last updated 04/23/08
The 25-50Hz figure towards the right of some of the models indicate a data manipulation where the 63Hz data has been eliminated eliminated. 
The figure in the parenthesis will reflect a 25-50hz(25,31,40,50hz) average. This was performed with all of the models that I had accurate 63hz output for.
Reason? Because almost any subwoofer can play loudly at 63hz. And some play SO loudly, that the 63hz figure can distort the overall output(avg) 
across the lower frequencies. For example...if subwoofer *X* hit...
25hz - 95dB
31hz - 100dB
40hz - 105dB
50hz - 110dB
63hz - 115dB 
63hz - 115dB 
                             
All figures are for a corner loaded subwoofer, measured at a 2 meters using 10% thd limits in a large 7500 cu-ft room.
The SPL numbers have been averaged from the maximum output(with a 10% thd limit) using 25,32,40,50,62hz steps
in testing(the 25-62hz range is considered the bass intensive film range).
Subwoofer 25-62Hz average 16Hz 20Hz 25Hz 32Hz Frequency Response 25-50Hz average
Genelec HTS6 118dB 90.5dB 105.5dB 109.5dB 117dB 25-100Hz +/-2.7dB 116.3dB
Stryke Power 15 prototype 115.4dB 99dB 102dB 106dB 119dB 28-112Hz +/-8.9dB 115.3dB
Velodyne 1812 Signature      113dB 101.1dB 103.9dB 107.6dB 114.8dB 25-68Hz   +/-2.4dB 111.6dB
Niles PRO15SW 113dB   90dB     32-100Hz +/-2.8dB  
Epik Conquest[1] 112.9dB 104.7dB 109.3dB 112.3dB 115.5dB 26-133Hz +/-4.5dB 112.8dB
Klipsch RSW-15 112dB    97dB   112dB 48-115Hz +/-2.1dB  
Velodyne F1800 MkII  111.9dB  90.5dB          
Exodus Audio’s WMD 15 111.3dB 70dB 93dB 104.8dB 115.2dB   111.3dB
Energy S12.3 110db   86.9dB 105.7dB 113dB 29-113Hz +/-2.2dB 109.5dB
SVS 20-39CS(w/300 watt amp)      109.5dB   91dB 105.8dB 114.9dB    
Velodyne FSR-15 109.1dB 90.1dB   103.1dB      
Paradigm Signature Servo 109dB 88dB 98dB   110dB 24-75Hz   +/-2.2dB  
Triad InRoom Gold (w/RackAmp 500) 109dB   97dB     24-117Hz +/-2.3dB  
PSB SubSeries 6i 109dB   95dB     27-119Hz +/-2.4dB  
Klipsch KSW300  109dB     92dB     107.3dB
Mission 700as  108.1dB      102dB 111.5dB 27-114Hz +/-5.7dB 106.8dB
JL Audio Fathom F112 108dB 80dB       24-101dB +/-2.5dB  
PSB Subsonic 6i 108dB   93.8dB 103.1dB 110.1dB 30-118Hz +/-2.5dB 107.4dB
Paradigm Seismic 12 108dB   87dB     25-117Hz +/-3.5dB  
Klipsch RW-12d 108dB   86dB 98dB 107dB 35-105Hz +/-2.1dB 106.8dB
Paradigm PW-2200 108dB   84dB     28-117Hz +/-2.4dB  
Outlaw LFM-1 108dB   83dB 97dB 113.4dB 30-73Hz   +/-2.0dB 107.7dB
Velodyne DLS-5000R 108dB     91dB 110dB 35-100Hz +/-2.8dB 106.5dB
B&W asw1000      107.9dB      96dB      
Adire Audio Dharman  107.9dB    96dB 102dB 114.6dB   106.5 dB
Velodyne HGS15  107.7dB 89.1dB   102.1dB      
NHT U1(w/A1 amp)  107.6dB     99dB   50-185Hz +/-2.2dB  
Paradigm Servo 15  107.3dB             
Velodyne CHT-15  107.3dB      92dB 108.4dB 30-101Hz +/-2.3dB 105.1dB
Hsu Research VTF-2(in max extension)      107.1dB    93dB     25-82Hz   +/-3.2dB 106 dB
Velodyne SPL-1200 107.1dB  73dB   98dB   27-90Hz   +/-1.7dB  
Hsu Research TN25(w/250w) 107.1dB      96dB   30-82Hz   +/-2.6dB 106 dB
Cerwin Vega cvt300s  107dB  80db 92dB       106 dB
Klipsch RT-12d 107dB   91dB     46-108dB +/-1.9dB  
Infinity SW-12 107dB   84.5dB 96.4dB 109.3dB 35-78Hz   +/-2.3dB 106dB
Cerwin Vega CVHD-12S  107dB       106dB 40-89Hz   +/-2.4 dB  
BW asw2000  107dB           105.3dB
Velodyen SCS-10/SC1250 (dual subs) 106.5dB   88.8dB        
Outlaw LFM-1EX 106dB    96dB 96dB 109dB 34-103Hz +/-2.2dB 105.3dB
Cerwin Vega LW12  106dB    89dB     60-115Hz +/-1.5dB 103.4dB
Polk PSW-650 105.6dB    84.3dB 90dB   40-123Hz +/-2.1dB 103.6dB
Infinity Intermezzo 1.2s 105.5dB 80.1dB 90dB 95dB   30-118Hz +/-2.1dB  
M&K MX125 mkII 105.3dB   88.9dB 91.5dB   25-120Hz +/-2.2dB  
Velodyne CT-150  105.3dB    82dB       103.9dB
JBL PSW-D112  105.2dB      95dB   32-82Hz   +/-2.9dB  
HSU VTF-3 MkIII Turbo 105dB 83dB 93dB 95dB 107dB 24-92Hz   +/-2.3dB 104dB
SVS PB12-NSD 105dB   96dB 102dB 109.4dB 34-78Hz   +/-2.0dB  
Canton Vento AS 850 SC  105dB   86dB     36-79Hz   +/-2.3dB  
Aperion Intimus S10 105dB   77dB     37-110Hz +/-2.2dB  
JBL S120PII      105dB   76.4dB 86.9dB 107.8dB 37-80Hz   +/-2.2dB 103.5dB
Boston Acoustics HPS 12HO 105dB     97dB   23-86Hz   +/-1.9dB  
KEF PSW2150 105dB     94dB   35-90Hz   +/-1.8dB  
Infinity Alpha 1200s  105dB     85dB   39-112Hz +/-2.1dB  
Klipsch KSW-12  104.9dB      90dB   28-85Hz   +/-3.2dB 102.4dB
Boston Acoustics PV800  104.4dB   85dB       103dB
Acoustic Energy AE 308  104.1dB      95dB   38-155Hz +/-2.8dB  
Jamo C 80 Sub 104dB    89dB     27-195Hz +/-2.2dB  
Definitive Tech. PF15TL+  104dB    88dB     31-120Hz +/-1.7dB  
JBL L8400P 104dB    85dB     37-110Hz +/-2.1dB  
Energy S10.3 104dB    84dB        
JBL CSS10 104dB    83dB     35-80Hz   +/-2.5dB  
Axiom EP500 104dB    80dB   110dB 28-98Hz   +/-2.1dB  
Velodyne DD-12 104dB    78dB     22-71Hz   +/-2.1dB  
Crystal Acoustics THX-12SUB 104dB      91dB   39-116Hz +/-1.8dB  
Polk PSW505 104dB      90dB   30-98Hz   +/-3.2dB  
JBL Cinemavision (package) 104dB      88dB   39-122Hz +/-1.8dB  
Aperion Intimus S12 104dB      84dB   37-82Hz   +/-2.2dB  
PSB Subsonic 3i  104dB          28-132Hz +/-3.0dB 101.3dB
Phase Technology PC500(towers)  103.6dB            
Infinity IL100s 103.5dB    79.2dB 94dB   47-131Hz +/-2.0dB  
B&W ASW-750 103dB     92dB   31-79Hz   +/-1.9dB  
Thiel SS2 103dB 74dB       17-76Hz   +/-1.9dB  
NHT XdW 103dB   85dB     32-104Hz +/-1.9dB  
Mirage Omni S10 103dB   83db     29-106Hz +/-2.5dB  
Velodyne DPS-12 103dB   80.4dB 90.4dB 106.5dB 36-108Hz +/-2.2dB 101.7dB
Atlantic Technolog 642SB 103dB   79dB     29-196Hz +/-4.7dB  
Klipsch RW-10  103dB   77dB     39-97Hz   +/-1.9dB  
RBH MS-10.1 103dB   76.8dB 94.9dB 102.7dB 46-172Hz +/-2.4dB 100.9dB
JBL E250P* 103dB   74dB     33-79Hz   +/-2.8dB  
Canton AS 50 SC 103dB   67.3dB 88.6dB 104.7dB 40-113Hz +/-2.1dB 101.3dB
Infinity TSS-1000 (package) 103dB     88dB   33-130Hz +/-2.5dB  
Definitive Tech Supercube I 103dB     78dB   30-120Hz +/-2.5dB  
PSB Subsonic 6 102.7dB     94dB   28-103Hz +/-2.2dB  
Sound Dynamics rts1200  102.1dB      92dB     100.1dB
Kef PSW3500 102dB   80dB     35-150Hz +/-2.3dB  
Phas Technology HV-1000 102dB     92.1dB 102.9dB 35-104Hz +/-2.5dB 100.2dB
JBL SCS300(package) 102dB     92dB   37-195Hz +/-2.5dB  
Athena AS-P400  102dB      78dB   29-94Hz   +/-2.2dB  
Velodyne VA1012  102dB           101.3 dB
Energy ES12XL  101dB            
Velodyne CT-120  101dB    87dB     30-80Hz   +/-3.5dB 99.8 dB
Hsu Research STF-1 101dB   75dB   104dB 33-78Hz   +/-1.9dB  
Phase Technology HV-1000 101dB   73dB     33-124Hz +/-3.4dB  
Boston Acoustics Avidea 770(package) 101dB     87dB   42-99Hz   +/-1.9dB  
Audica CS-Sub10 101dB     86dB   39-160Hz +/-2.0dB  
Infinity Cascade 12 101dB     80dB   35-140Hz +/-2.6dB  
Martin Logan Grotto 101dB     75dB   24-73Hz   +/-2.3dB  
MK - MX105  100.6dB      86dB      
Atlantic Technology 272PBM  100.5dB   85dB     24-144Hz +/-4.5dB 99.4 dB
Infinity HPS-250  100.2dB      82dB     98.3 dB
Klipsch LF-10  100.1dB      90dB   26-97Hz   +/-2.4dB  
PSB Subsonic 5  100dB     87dB   31-100Hz +/-3.5dB  
Jamo D 4Sub 100dB     84dB   25-73Hz   +/-2.7dB  
DCM TB1212 [2] 100dB      82dB   40-90Hz   +/-2.4dB  
Atlantic Technology 642eSB 100dB   80dB     28-100Hz +/-2.4dB  
Revel B12 100dB   80dB     32-115Hz +/-2.0dB  
Atlantic Technology 170PBM(package) 100dB    80dB     44-110Hz +/-2.5dB  
Thiel SS1 100dB   78dB     17-56Hz   +/-1.8dB  
Atlantic Technology 422 SB 100dB   76dB     40-133Hz +/-1.8dB  
Velodyne VLF-810 100dB   72dB     32-101Hz +/-2.9dB  
M&K MX-700 100dB   72dB     40-110Hz +/-2.3dB  
Mirage LF-150 100dB   71dB     28-113Hz +/-2.6dB  
Sunfire Jr.  100dB      95dB     97.5 dB
M&K V-76(Xenon System 35 package)  100dB      87dB   35-117Hz +/-2.4dB  
M&K V-76(Xenon System 35 package)  100dB      86dB   50-130Hz +/-2.6dB  
Canton AS 25 SC 100dB       96dB 42-202Hz +/-2.6dB  
Canton Karat AS200SC  99dB      80dB   42-97Hz   +/-2.0dB  
Velodyne FSR-12  99.7dB    94dB        
M&K V-851 99dB  75dB       30-140Hz +/-3.0dB  
Wharfedale SW150 99dB      84dB   45-117Hz +/-2.0dB  
JBL PB-10  99dB      82dB   43-124Hz +/-2.1dB  
Onkyo HTS-L5(package)  99dB          51-118Hz +/-2.2dB  
M&K V76 98.8dB  72dB 79.6dB 87.4dB 100.2dB 25-114Hz +/-3.0dB 97dB
B&W ASW675(EQ mode A)  98.6dB  73dB 81.2dB 85.9dB 99dB 24-114Hz +/-3.3dB 96.9dB
Polk RMDS-1  98.6dB      77dB     96.3 dB
Velodyne FSR10  98.4dB    92dB        
PSB Subsonic 5i 98.1dB      87dB 99.3dB  30-113Hz +/-3.5dB 97.1dB
Sonace Son of Subs 98dB     86dB   43-43Hz   +/-2.6dB  
Phase Tech Power8  98dB     84dB      
Boston Acoustics PV1000 98dB     83dB   29-118Hz +/-2.7dB  
Definitive Technology Supercube III 98dB     82dB   44-110Hz +/-2.3dB  
Paradigm PDR-12  98dB      80dB   50-130Hz +/-2.4dB  
PSB HD10 98dB     73dB   33-61Hz   +/-1.9dB  
Paradigm PDR-10  98dB         42-115Hz +/-3.3dB 95.3 dB
Polk PSW250  97.3dB       91dB 28-126Hz +/-1.9dB  
Kenwood/Boston Acoustics Unity(package)  97dB      85dB   30-151Hz  +/-12dB  
Atlantic Technology 212 SB 97dB     84dB   42-120Hz  +/-1.8  
Mirage FRX S10  97dB      84dB      
Mirage Nanosub 97dB     83dB   38-155Hz +/-2.5dB  
Energy S8.2  97dB     82dB   32-100Hz +/-2.6dB  
Energy Act Sub 97dB     82dB   36-116Hz +/-2.2dB  
B&W ASW600  97dB     81dB      
Velodyne CT80  97dB     81dB      
Sunfire True Super Jr 97dB       93dB 33-57Hz   +/-1.5dB  
Jamo SW505  97dB            
Definitive Supercube II  96.9dB      85dB      
Klispch KSW-10  96.9dB      85dB   32-134Hz +/-3.9dB 94.9dB
Tannoy PS110  96.8dB    77dB 84dB   30-113Hz +/-4.1dB 99.9dB
Canton AS25  96.8dB      80dB     94.9dB
Canton AS20SC  96.7dB        87.7dB 60-106Hz +/-2.4dB  
Bag End Infrasub-12  96.1dB  65dB 73.3dB 80.1dB 93.1dB 19-83Hz   +/-3.0dB 92.7dB
M&K V-1250thx  96dB      86dB   36-86Hz   +/-1.8dB    
Velodyne SPL-800R 96dB     82dB 93dB 35-126Hz +/-2.1dB 92.8dB
Atlantic technology 4.5  96dB      82dB     93.5dB
Polk DS2700(package)  96dB      82dB   45-120Hz +/-2.2dB  
Athena P.5(Point 5 package) 96dB      82dB   35-100Hz +/-2.7dB  
Tannoy Arena (package) 96dB     82dB   43-95Hz   +/-1.9dB  
Wharfedale PC DX12 96dB        89dB    
ACI Titan  96dB      80dB     93.5dB
Paradigm Cinema 110 96dB     78dB   40-115Hz +/-2.7dB  
Morel IS-9A 96dB     78dB   48-113Hz +/-2.2dB  
Sony DAV-C900(package)      96dB         54-85Hz   +/-2.2dB  
Aura Lss-107A  95.2dB      73dB      
Velodyne Deco 8(package)  95dB      85dB      
Celestion S20(package)  95dB      82dB      
NHT V-Woofer 95dB      81dB   42-252Hz+/-3.6dB  
Martin Logan Dynamo 95dB      78dB   27-70Hz  +/-1.9dB  
Paradigm 90P(single tower)  95dB             
Celestion cswII  95dB      78dB      
Definitive Technology ProSub 800 95dB      76dB   44-150Hz +/-2.3dB  
Atlantic Technology T70.1PBM 94.7dB      82.2dB 94.1dB 42-115Hz +/-2.6dB 92.5dB
ENERGY Encore 8  94.4dB      78dB   30-80Hz   +/-2.0dB 92.3dB
ENERGY XL8  94dB      78dB      
POLK PS-120  94dB          46-132Hz +/-3.3dB  
Pinnacle Baby Boomer 93.2dB    74dB 81.7dB 90.5dB 27-169Hz +/-3.0dB  
Wharfedale Modus  93.1dB            
Genelec 5050a 93dB   90dB     33-116Hz +/-2.8dB  
Kef Kit(package)  93dB     82dB   36-115Hz +/-2.9dB  
Bang & Olufsen BeoLab 5 (single tower)      93dB     78dB   29-16Khz +/-3.4dB  
Wharfedale 12SB  92.6dB      69dB   48-125Hz +/-2.6dB  
Def Tech BP2002TL(single tower) 92.3dB      80dB      
Paradigm PDR-8 91.4dB      73dB   46-115Hz +/-2.1dB    
Tannoy HTS 92dB     81dB   53-190Hz +/-1.5dB    
Def Tech BP7001sc(single tower) 91dB      77dB   27-20Khz +/-6.5dB    
Velodyne SPL-800  91dB      75dB      
Cambridge SW Newton P500 90.8dB      70.3dB 91.6dB 24-101Hz +/-3.1dB 86.9dB
M&K K9  90.4dB     77.8dB   38-116Hz +/-1.8dB  
Mirage fs1(package) 90dB     73dB   39-120Hz +/-2.2dB  
Cerwin Vega HTS15 (107dB from 40-100hz) 89dB            
Def Tech Pro Tower 400(single tower) 89dB     81dB       
Canton AS D220SC 89dB     69dB   44-180Hz +/-4.5dB  
Tannoy FX5.1(package)  87dB      80dB   40-117Hz +/-2.2dB  
Tannoy FX5.1(package)  87dB      67dB      
Pioneer Elite ES-DV1000(package)  85dB     67dB   40-192Hz +/-2.6dB  
Pinnacle Subsonic 83dB     71dB 80dB 32-138Hz +/-2.0dB 81.5dB
JM Lab Cub  82dB      63dB      
(*) denotes minor extrapolation applied                
Subwoofer 25-50Hz average 16Hz 20Hz 25Hz 32Hz Frequency Response 25-50Hz average
Boston Acoustics VR2000  109dB            
Hsu Research 12V (150w)  106.5dB             
Cerwin Vega HT-PWR12  105.9dB             
B&W ASW800  105.1dB             
Klipsch SW12 series2  104.6dB(32-50Hz)            
ADS ms3  104dB            
Phase Technology 1.0 Octave  103.3dB             
Velodyne VA-1215x  102.6dB             
Bagend 18"  102.5dB*            
MK MX-125  101.8dB            
Triad Silver  100.2dB             
PBS Subsonic III  100.1dB             
Sunfire <100dB            
MK V75 MarkII  98.1dB            
Allison NL-5400P  96.4dB             
Altec Lansing PSW10  95.5dB             
KEF 30B AV  93.5 dB(32-50Hz)            
(*) denotes minor extrapolation applied              
Subwoofer 32-62Hz average 16Hz 20Hz 25Hz 32Hz Frequency Response 25-50Hz average
SVS SB12-Plus 104dB       102dB 34-116Hz +/-2.1dB  
Acoustic Research HC-6(package)  102.3dB       96dB 49-130Hz +/-2.2dB  
Rel R-305 102dB       100dB 23-71Hz   +/-1.8dB  
Mordaunt-Short Genie 409 102dB       95dB 43-135Hz +/-2.2dB  
Focal SW800V 101dB       89dB 44-108Hz +/-2.1dB  
Earthquake Super Nova MK-IV 10 101dB       87.6dB 41-92Hz   +/-2.2dB  
Canton ASD250C 100dB       90dB    
Boston Acoustics cr400  99dB            
Paradigm PS-1200  98dB     91.4dB*      
Phase Technology power10  98dB            
Denon DHT-1000DV (40-62Hz) 98dB         45-78Hz   +/-1.8dB  
Jamo A410PDD(package) 97dB        83dB 54-230Hz +/-2.3dB  
Acoustic Research S12ho  97dB             
Cabasse Santorin 17 96dB        90dB 36-218Hz +/-4.1dB  
Mirage PS-12  96dB        76dB 35-104Hz +/-2.0dB  
Mirage PS-12  96dB             
Sound Dynamics RTS-800  95dB        92dB    
Yamaha DVX-S100(package) 95dB        87dB 38-60Hz   +/-2.2dB  
KEF PSW2200(package)  95dB        82dB 45-125Hz +/-2.4dB  
Denon D-M71DVSXP(package) 94dB       82dB 45-77Hz   +/-1.9dB  
Panasonic ST-SC1 (40-62hz) 92dB         43-135Hz +/-2.2dB  
MK vx-7  89dB             
Sharp ST-AT50DV(package)  89dB        71dB 45-85Hz   +/-2.4dB  
Audiosource SW eleven  88dB        78dB    
Pioneer HTD-630DV(package) 88dB        72dB 43-70Hz   +/-2.2dB  
Canton Movie 10-MX(10-MX package) 88dB        62dB 62-130Hz +/-2.6dB  
RBH MS-8(Compact Theater 7.1 package) 87dB        78dB 63-140Hz +/-2.0dB  
Panasonic SC-HT1000 86dB       73dB 44-137Hz +/-3.0dB  
Jamo A2Sub  85dB        69dB    
(*) denotes minor extrapolation applied              
 
Subwoofer 31-80Hz average 16Hz 20Hz 25Hz 32Hz Frequency Response 25-50Hz average
Polk psw150  105.4dB            
MB Quart D1200si  104dB            
NHT sw 1p  101.9dB             
Bose am15 bass module  100dB        97dB  46-202Hz +/-2.3dB  
Infinity BU120  100dB        90dB    
Mirage PS-8  99dB        90.7dB    
Sound Dynamics rts800  98dB            
PSB Subsonic 1  97dB            
Paradigm Legend tower(10" built-in sub) 93.1dB            
     
Various other non commercial subwoofers  
Subwoofer 12-63Hz average
NOUSAINE's IB design  120dB
The four DIY setups NOUSAINE reviewed in the
JAN-1999 AUDIO...(all 25-63hz)  
Subwoofer 25-63Hz average
RK(4-18s) 126dB
TH(4-15s) 116dB
RP(2-18s)  107dB
TP(8-12s)  123dB
***the following are extrapolations that I conducted concerning the information I have on the subwoofers…while not
verified I do feel the figures should be fairly accuate, all figures are assuming a 25-63hz range(unless otherwise noted).
Subwoofer 25-63Hz average
TV's 30" ICBM - (1200w)  123dB
TV's 18" DIY - (400w) 112dB
Ron Stimpson's Va-*clone*(300w)  112dB
HSU RESEARCH TN20(w/500w amp) 108.5dB
   
Stan "the man"  approx 135dB
[1]
Administrator:
103.9dB @ 12.5Hz
[2]
Taber:
Measured a 2nd time Sep 07
performance dropped significantly down low:
25-62Hz AVG: 96dB
25Hz @ 10% distortion: 62dB(vs 82dB)
Freq Response: 39-83Hz +/- 2.3dB

http://www.soundandvisionmag.com/speakers/2418/test-bench-dcm-timeframe-tfe200-home-theater-speaker-system.html