Fryette Amplification LXII vs Matrix G1000FX Power Amp Noise Test Video. Now on Youtube! In this video we compare the operational fan noise of the Fryette LXII 1U Stereo Tube Power Amplifier and the operational fan noise of the Matrix GT1000FX Solid State Stereo Power Amplifier. The Matrix amplifier has thermal sensing which controls the fan speed, so it is very quiet at initial turn-on. That’s a good thing given the considerable level of noise generated by the two fans running in tandem at normal power operation. Because of this sensing function, and to insure a fair comparison, we tested the Matrix fan noise at a medium power output of less than 100W/Channel for less than two minutes. This is typical for a SS power amp that delivers up to a stated 1000W in Bridge Mono mode. In other words, you’re hearing the typical fan noise of this amplifier at a very conservative power rating. In the Fryette LXII amplifier, there are also two fans and they operate at full speed all of the time. This is because the four 6L6 power tubes are in an enclosed space and produce steady heat regardless of whether or not they are producing power due to the heat emitted by the tube filaments even on standby. Maintaining a constant flow of cooling air helps manage the gradual internal heat buildup at peak power levels and maintains cool to the touch operation over the course of typical operation. Its important to maintain the lowest possible continuous noise levels for adequate cooling so as not to cause noise fatigue over time.
Posted on: Fri, 08 Aug 2014 02:48:44 +0000
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