MACH 1 Acoustics? Cute name. Mach 1 is, of course, the speed of sound&mdash;the speed at which a loudspeaker's acoustic output is forever constrained to travel. Quite a fitting choice for Marc McCalmont, Marine and jet pilot turned speaker designer. Marc retired to Wilton, NH together with Melissa. (Oops, that should be <A HREF="http://www.mlssa.com">MLSSA</A&gt;, the well-known acoustic analysis system&mdash;not Marc's girlfriend.)

<B>Jonathan Scull: </B>Gordon, please tell us what you see as the basic difference between single-ended and push-pull.

We have to talk. Are you sitting comfortably? Is the reading light okay? Have a little something to drink at hand? (Audio is thirsty business.) The audio world is abuzz over the reintroduction of the single-ended triode amplifier. This is the first of three reviews of such amplifiers I'll be bringing you, along with two speaker systems with which to play them.

We have to talk. Are you sitting comfortably? Is the reading light okay? Have a little something to drink at hand? (Audio is <I>thirsty</I> business.) The audio world is abuzz over the reintroduction of the single-ended triode amplifier. This is the first of three reviews of such amplifiers I'll be bringing you, along with two speaker systems with which to play them.

We have to talk. Are you sitting comfortably? Is the reading light okay? Have a little something to drink at hand? (Audio is <I>thirsty</I> business.) The audio world is abuzz over the reintroduction of the single-ended triode amplifier. This is the first of three reviews of such amplifiers I'll be bringing you, along with two speaker systems with which to play them.

We have to talk. Are you sitting comfortably? Is the reading light okay? Have a little something to drink at hand? (Audio is <I>thirsty</I> business.) The audio world is abuzz over the reintroduction of the single-ended triode amplifier. This is the first of three reviews of such amplifiers I'll be bringing you, along with two speaker systems with which to play them.

We have to talk. Are you sitting comfortably? Is the reading light okay? Have a little something to drink at hand? (Audio is <I>thirsty</I> business.) The audio world is abuzz over the reintroduction of the single-ended triode amplifier. This is the first of three reviews of such amplifiers I'll be bringing you, along with two speaker systems with which to play them.

We have to talk. Are you sitting comfortably? Is the reading light okay? Have a little something to drink at hand? (Audio is <I>thirsty</I> business.) The audio world is abuzz over the reintroduction of the single-ended triode amplifier. This is the first of three reviews of such amplifiers I'll be bringing you, along with two speaker systems with which to play them.

Rumors have been circulating for some weeks now that the Chinese-owned, UK-based International Audio Group (IAG), which owns and operates the Quad and Wharfedale brands, was in talks with TAG McLaren, with the intention of taking over the latter's Audio division.