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Product Information

Car Audio Magazine

This CM-ELS30th1200.4 1ohm Series Amplifier is built using the finest techniques and materials available today. Critical  MASS amplifiers are manufactured and tested to meet the highest component quality and control standards. Engineered to provide decades of musical enjoyment. "Critical MASS is a Car Audio company whose Super-Fi electronics have made innovation history in the world of high-end mobile sound" CA&E. Critical Mass was formed from the World’s First Car Audio and Enhancement school by one of Car Audio's first innovators and most influential people in our industry who started the world's first Car Audio and enhancement school back in the late 1980s “CMA”, from this school Critical MASS was started in Orlando, FL, in 1990. Till this day parts of the technical principles and teachings of CMA are used industry wide in Mobile Electronics teachings and books by associations such as MERA and CEA. Over the past decades Critical MASS has continued to innovate and now leading the way with the Critical MASS $259,000 CES-5.1 one of a kind Esoteric ESL sound system. Not only does Critical MASS make the Best and most expensive car audio system in the world, but this system is so good, that when Car Audio Magazine tested the least expensive part of our $259,000 ESL system “the UL12” called it " Perfect ", and "the BEST" and added that it was so good that he would sell a few things, to own one because it's worth every dollar! In  addition the Critical MASS UL12 was rated #1 over all others by Car Audio Magazine, including companies such as JL Audio, Image Dynamics, Alpine, Xtant,  Kicker, Arc Audio, MB Quart, Digital Designs, Cerwin-Vega, Orion, Phoenix Gold  Earthquake etc…  In other words  Imagine how good the rest of the system must sound if the least expensive part of it is the world's BEST? You will not have to imagine much longer as thCM-A1100.4 series amplifier you just purchased uses many of the same Critical MASS quality components as the amplifier used in our $259,000 electrostat system.  



Only Audiophile grade components with Audiophile tolerances for pure and exact audio reproduction at all volume levels throughout the entire audio bandwidth.

Unique Audiophile grade Hybrid design Class A/B/H/T (perfect reproduction)

30TH Anniversary / 1 ohm native stability. 

Frequency response 3hz - 50Khz all 4 channels

High bandwidth Burr-Brown amplifier section

Protection and Power on indicator LED
Audiophile grade input with 8V - 0.1V Gain volume Min - Max
Protection circuit for thermal, overload, over voltage, DC reverse, - DV offset

24/oct variable Hi-pass  variable frequency 40hz-160hz

24/oct variable Lo-pass available variable frequency 40hz-160hz 

Sub-Bass gain at 40hz from +0db variable to +12 db  

Ultra-High Efficiency Audiophile design


All Channels driven
 RMS Power at 4 Ω 100W x4 channels

RMS Power at 2 Ω 200W x4 channels
 RMS Power at 1 Ω 300W x4 channels 


RMS Power at 4 Ω 400W x2 channels
 RMS Power at 2 Ω 600W x2 channels 

Dynamic usable headroom over 1.5KW 

Low pass variable crossover
40Hz~160Hz at 24dB/OCT

Hi pass variable crossover
40Hz~160Hz at 24dB/OCT
T.H.D. 0.01%
Input sensitivity 100mV~8V
Input impedance 110K Ω
Damping factor >700
S/N Ratio 119db

Product CodeCM-ELS30th1200.4

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