Follow up (OT?) Spectron and MG20

Posted by Duilawyer (A) on March 31, 2008 at 11:04:16

I mentioned that I had read somewhere (but forgotten to bookmark for you all) that a common comment was "I can make out the lyrics I could not make out". And for me that has proven true, on Runaround Sue, and Jon Meyer "I'm Never Speaking Up Again" I have made out lyrics I had not been able to discern.

so...
From the Spectron website: (A little biased, I admit)

Noise and Hum
Noise in audio is very important. We often think in terms of the hiss we hear out of the speaker with no signal. This is of secondary importance. When music is playing, the noise (hiss) and hum (audible noise coming from the speakers and related to the AC line) increase dramatically. Comments about amplifiers with the least rise in noise are: "I hear more detail" or "I hear a voice I never heard before". This is because the noise is not coming up and masking the music. Comments about amplifiers with low rise in hum are: "The bass is tight and well defined" or "Voices don't have that muffled sound", again lack of hum masking. Some Class-D amps tend to have less rise in noise when music is playing, resulting in less masking. This is because the logic circuits in class-D contribute little noise. Also, class-D draws significantly less power from the power supply, yielding less ripple on the power supply, thereby reducing hum. The measured noise in Spectron amplifiers is less than 83db, below one watt, which is extremely low.

Mechanical humming from the mains transformer is caused by a varying DC component on the mains grid's AC voltage. The DC component comes from unbalanced loads on the mains grid, such as hair dryers and is present in most households.The amplifier main transformer's vibrations degrade performance of the power supply and when audible can be annoyance as well. Spectron solved this problem by building appropriate filtering circuit.below one watt, which is extremely low.

Theoretically someone can say the newfound clarity is actually the MG20s; they just needed to be properly fed. I have no answer.

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Topic - Follow up (OT?) Spectron and MG20 - Duilawyer 11:04:16 03/31/08 (1)

RE: Follow up (OT?) Spectron and MG20 - muralman1 18:52:29 03/31/08 (0)

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