The first pic shows the Velodyne SMS-1 connected to my preamp as a source. It is not connected in any way to the signal path from preamp to Bryston 10B-SUB to subs/amp. It has a built in frequency seep tone that will repeat as long as you want an will cover 0H to 200H in about 30 seconds. It also has a microphone input for a calibrated microphone that will measure that test tone and a video output that will display the frequency sweep on a television screen.
The second pic is the tv I used as a monitor. The third pic is the welcome screen when the SMS-1 is powered up. It is very important to reset to the default settings before beginning to ensure that there is no EQ still being used.
