I initially measured one of the Dan D'Agostino Master Audio Systems Progression Mono monoblocks (serial no. PMO26P) with my Audio Precision SYS2722 system (see the January 2008 "As We See It"). Before doing any testing of a power amplifier, I precondition it by running it at one-third its specified power into 8 ohms for 60 minutes. This power level results in the highest thermal stress on the output devices of an amplifier having a class-B or class-AB output stage. After an hour driving 167W into 8 ohms, the temperature of the Progression's top panel and heatsinks…
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As it…
You can debate the merits of that trade, but what was weird was that Hefner had always been such a music fan, supporting jazz in particular.
I interviewed for an editorship with Playboy many years ago, and all during the interview…
"A fellow drummer and friend, Aaron Kimmel, got me into audio via Billy Drummond," notes MAA #7, drummer…
These impressive figures place…
And in 1979 was there a bigger record than side one of Damn the Torpedoes?
Finally, can Tom Petty actually be gone at the age of 66?
The idiotic dance that the LAPD and TMZ did throughout the night aside—He's dead. Oh wait, he's not dead. Yet.—Tom Petty did indeed pass sometime during the night after suffering a heart attack yesterday morning.
Always reminiscent of Bob Dylan and The Byrds, Petty and the Heartbreakers was first and foremost a…
Remasterings of recordings make me angry—they mess with my memories of the songs I love, especially songs from the 1960s that I played in my bedroom on a cheap Garrard turntable through Lafayette speakers. Like my first girlfriend, these songs permanently entered my psyche and modified my DNA.
When songs I've heard a thousand times are remastered or remixed, they sound wrong and weird to me. They make my inner hard drive skip as I try to figure out what was changed, and why. This is…
The AMG…
Because the AMG turntable sits rigidly on three adjustable spiked feet, it seemed wise to repeat my auditioning with the Giro G9 sitting on my PS Audio PerfectWave PowerBase isolation platform and power conditioner ($995, discontinued). Normally, I use the PowerBase passively—not as a conditioner, but only as a platform for my Linn LP12, to prevent footfalls on my bunker's ancient wooden floor from becoming part of my music.
The PowerBase worked some unanticipated magic with the AMG Giro G9. Besides making the turntable noticeably quieter, it sharpened…