Solid State Preamp Reviews

When I started out on my multichannel mission in 2000, it was with an all-digital Meridian system that relied on lossy, compressed sources like the original Dolby Digital and DTS formats, or on synthesized surround based on Dolby Pro-Logic or Meridian's own TriField. With the appearance of first SACD and DVD-Audio and then Blu-ray, discrete lossless multichannel recordings became available, but there was no way to output those signals in digital form for interconnection to other components for playback or further manipulation. Most audiophiles, me included, already had analog preamps and power amps. It was only with the appearance of HDMI and the accompanying HDCP content protection that we could output those digital signals, and over a single cable to boot. Today, there are A/V receivers, some costing less than $500, and more than a handful of audiophile-oriented preamp-processors, that can accept such lossless high-resolution multichannel content as PCM, DSD, Dolby TruHD, and dtsHD Master Audio.

In a way, you could say that Meridian started the now epidemic practice of modifying stock CD players (usually of the Philips-Magnavox species). The original Meridian player, the MCD, was a reworking of the first-generation Philips and was praised by J. Gordon Holt in these pages in his 1985 review (Vol.8 No.2). The Meridian Pro (Vol.8 No.6) won similar plaudits, and is still to be seen lurking in JA's system. And the original 207 was well-received by MC in Vol.10 No.3.

Before launching into Stereophile's first-ever report on a Mark Levinson product, an important point needs to be clarified. Although Mark Levinson products were originally made by Mark Levinson, they are no longer. Au contraire, Mark Levinson products are now being made by Madrigal, Ltd., which bought Mark Levinson Audio Systems' assets and trademark two years ago. Mark Levinson's products, as distinguished from Mark Levinson products, are now being manufactured by a company called Cello. But the subject of this report, the Mark Levinson ML-7A preamplifier, is a product of Madrigal, Ltd., not of Cello. Now that I've made that all perfectly clear, we may proceed.

High-end audio companies take different approaches to staying successful. One way to maintain a market position is to continue improving fundamental designs, offering a little higher sonic performance with each model. The latest products from a company employing this approach will look and operate very much like their first products.

Over the years, I have become increasingly impressed by the quality of the audio engineering emanating from Simaudio, which next year celebrates its 30th anniversary. In a world where the US facilities of some well-known audio brands have been reduced to a design office coupled to a warehouse for storing product manufactured overseas, this Montreal-based manufacturer, in order to keep full control over quality and hence reliability, does as much manufacturing as possible in-house, including metalwork, some printed circuit-board stuffing, and assembly. (See my photo essay starting here.)

Sometimes, I think life would be easier if I were an audio customer. If I didn't have to wait on the priorities of the electronics companies, I might have gone out and bought a Blu-ray player months ago. Had I done so, I would have been shocked to find that almost all BD players are released with fewer than the advertised number of features, and sometimes require firmware updates—sometimes even a return to the manufacturer—to have them installed.

The roadster's throbbing rumble became a roar as the tachometer soared above 4 grand. Like a giant hand, its thrust jammed me back into the seat. Racing along low to the ground, feeling every curve and bump, I began to understand: the automotive virtues of smoothness and insulation had been swapped for firm road grip and the ability to transmit to the driver each jolt and curve in the surface below. Long before I'd climbed into the driver's seat of Porsche's Boxster S, I had known about its low-end snort and speed—the main reasons I was considering a lease—but I had not known about its ability to join sensation and purpose in such an intense bond.