Systems ListDIYTC Sounds LMSR12 Dual 12" VMP

Measurement Details

AmplifierPowersoft Digam K10
Outside Temperature55 F
Date TestedOct 24, 2011
Tuning Freq. Of Test13 Hz
Settings & Equalization
  • 10Hz 18dB octave high pass filter

Notes

This system exhibited good output, compression, group delay but the efficiency is rather low. The low frequency output and distortion performance are particularly noteworthy considering the total size of roughly 3.6 cubic feet of the system. Peak output levels are also impressive considering the size and ultra low tuning. This system is purposely tuned as deep as possible and a higher tuning would result in a better all around performance. Its also important to take note that the extra distance from the passive radiator's to the microphone compared to the active driver will misrepresent the low frequency output by a small amount. In practice, the output below 25Hz should be 1 or 2 dB higher and the response slightly less rolled off.

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