KA
Not as advertised.
I purchased my unit to test speakers and to ring out rooms with adjustable sinesweeps. When I got my unit, it did not generate sine sweeps from 20hz to 20khz. it went from 400hz down to 200hz and up to 20khz according to my spectrum analyzer. Inside the unit, there is a blue trimpot to adjust the oscillator range. This was off kilter. And after adjusting with my spectrum analyzer, the unit works better, but is only accurate between 32hz and 500hz. The unit does not produce a clean sine wave, since there are always 4-6 harmonic overtones 1 octave apart each other above the fundamental frequency. The sinewave looks sine-ish on a oscilloscope, but contains alot of harmonics. The amplifier on the speakon output puts out about 2,6vAC (0,4w@16ohms, 0,8w@8ohms, 1,7w@4ohms and 3,4w@2ohms), a bit under the 2,83vAC or 1 watt @ 8 ohms as advertised.
If you need accuracy, buy something else.
But for discovering room modes and low frequency resonances in a venue, and once calibrated, it's an affordable and somewhat useful tool.
If you only need something to make noise, it will make noise. Useful for troubleshooting bad speakerdrivers.
If you need accuracy, buy something else.
But for discovering room modes and low frequency resonances in a venue, and once calibrated, it's an affordable and somewhat useful tool.
If you only need something to make noise, it will make noise. Useful for troubleshooting bad speakerdrivers.
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