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BassMaxx X2C Deuce [message #28301 is a reply to message #28299] Sun, 21 October 2007 13:21 Go to previous messageGo to previous message
Wayne Parham is currently offline  Wayne Parham
Messages: 18688
Registered: January 2001
Illuminati (33rd Degree)
http://prosoundshootout.com/Photos/2007/Bassmaxx_Deuce.jpg
BassMaxx X2C Deuce basshorn sub

First, we measured impedance and found Zmin to be 3.35Ω. So 18.3v is required for 100 watts, 25.9v for 200 watts, 36.6v for 400 watts, 51.8v for 800 watts and 73.2v for 1600 watts.

http://prosoundshootout.com/Measurements/2007/BassMaxx_Impedance.jpg
Bassmaxx impedance

Next, we measured output at 28.3v. Since we measured 10 meters away, the values correspond to 2.83v/1M.

The blue line is SPL, and the violet line shows distortion. Since measurement was taken at 10 meters, add 20dB to find SPL at 1 meter. With 100 watts input, the 10 meter measurement works out the same as 1 watt input measured at a distance of 1 meter.

http://prosoundshootout.com/Measurements/2007/BassMaxx28v.jpg
Bassmaxx response at 10 meters with 28.3v input (2.83v/1M)

From this, we perform an inverse FFT to obtain impulse and step response:

http://prosoundshootout.com/Measurements/2007/Bassmaxx_Impulse.jpg
BassMaxx Impulse Response

http://prosoundshootout.com/Measurements/2007/Bassmaxx_Step.jpg
BassMaxx Step Response


Measurement at 100 watts:
http://prosoundshootout.com/Measurements/2007/BassMaxx100w.jpg
BassMaxx response at 10 meters with 18.3v (100w) input (1W/1M)


Measurement at 200 watts:
http://prosoundshootout.com/Measurements/2007/BassMaxx200w.jpg
BassMaxx response at 10 meters with 25.9v (200w) input


Measurement at 400 watts:
http://prosoundshootout.com/Measurements/2007/BassMaxx400w.jpg
BassMaxx response at 10 meters with 36.6v (400w) input


Measurement at 800 watts:
http://prosoundshootout.com/Measurements/2007/BassMaxx800w.jpg
BassMaxx response at 10 meters with 51.8v (800w) input


Measurement at 1600 watts:
http://prosoundshootout.com/Measurements/2007/BassMaxx1600w.jpg
BassMaxx response at 10 meters with 73.2v (1600w) input
 
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