Integrated Amp Reviews

The first true high-end component I owned was an Audio Research SP-10. I reviewed this two-box, tubed preamplifier in the May 1984 issue of the English magazine Hi-Fi News & Record Review. "The SP-10 presented [recorded] information in a more coherent, less distorted manner than any preamp I've tried," I wrote in the review, concluding that "the SP-10 made me realize how many good records I owned." I purchased the SP-10 and brought the preamplifier with me when I moved to the US. Four decades later, I still have that SP-10. "Every now and again, when I want to be reminded of the magic it brings to my music, I set it up, plug in the tubes, and spend an evening spoiling my ears," I wrote for an article in Ken Kessler's 2020 book on the history of Audio Research.

I was planning to review the latest product from Audio Research, the I/50 integrated amplifier, which costs $5500, earlier this year. However, with the uncertainty back then about the company's ownership, I postponed the review. When the news broke in June that Audio Research had been acquired by AR Tube Audio Corporation, a privately owned corporation that includes Valerio Cora of Canadian loudspeaker manufacturer Acora Acoustics as a director—see Industry Update in this issue—I unboxed the I/50 and set it up in my listening room.

The last time I had to box up my roughly 2600 records, during a move, I cursed up a storm and drank almost an entire bottle of tequila. I struggled to keep the vinyl alphabetized and kept running out of boxes, markers, and tape. And I discovered that I had more LPs of music by Miles Davis and Bach than by anyone else. In third place was George Jones.

The vectors of tradition, originality, and talent came together in Jones to produce a strange and unlikely gift. His music can make you feel things as suddenly and deeply as just about anyone's, but on top of this Jones had the greatest instrument of any male vocalist in country music, almost outlandish in its range and power. Then there was his technique: He could wring four syllables out of a four-letter word, and even when performing the same hit night after night, he varied the stresses and melismatic leaps depending on his mood. Sinatra called him "the second-best singer in the world."

My first car was a decrepit, mustard-yellow Peugeot 304 with a navy hood. The blue hue wasn't a fashion statement; after an accident, the previous owner had gone to a salvage yard where only a blue replacement could be procured. When he grew sick of the car—because it made him look "like a frickin' ad for Ikea"—I paid him 600 Dutch guilders for the old heap, the equivalent of about $300 US. . .

Years later, when I got into hi-fi, I thought of that car and subsequent ones. What stood out to me most about high-end audio was: separates.

Back in the 1950s, Cesare Sanavio, then a new electronics graduate with a specialty in output transformers for tube amplifiers, began his career in radio and television, traveling to various locations outside his native Italy to apply his expertise. Eventually he settled in Paraguay and started designing tubed sound systems for public installations, teaching his son Luciano the art. A few years later, Sanavio and his family returned to Italy. There, he worked as a consultant to several hi-fi companies. Finally, in 1994, drawing on decades of accumulated knowledge of tube-amplifier design and manufacturing, and a particular focus on output transformers of the highest quality, Cesare Sanavio and his two sons, Luciano and Lorenzo, formed Mastersound.

When Cesare Sanavio died, Lorenzo and Luciano continued operations. In 2015, the company re-formed, with some new international business connections and a new CEO, Antonio Ferro.

Before this month, I'd never experienced Rotel amplification in one of my own systems, but I have memories of how their amplifiers sounded back in the early 1990s. In those days, at audio shows, I would audition every Rotel amp I could find; I was especially interested in their $369, 60Wpc RB-960BX. I was curious about that model because it was the number-one competitor to the 60Wpc darling of the audiophile proletariat: Adcom's GFA 535 II. My friend Corey Greenberg compared these two popular amps in Stereophile and concluded, "The Rotel is for the budget-minded music lover who wants a good, solid little amplifier that's not going to make listening to music a trying experience."

Sometimes when the world shouts too loudly, I immerse myself in other sounds: in music. I escape the cacophony by diving into my stash of vinyl records (not literally, although that's a fun image) and reveling in the soundwaves they release. The soundwaves liberated from those physical grooves, combined with impressions stored deep in my hippocampus, never fail to soothe, energize, fascinate, excite.

Sometimes it's good to step outside your comfort zone. In fact, I relish new and novel experiences. It's a major reason I enjoy attending hi-fi shows and events: for the chance to see and hear new things—new hi-fi equipment, especially equipment that's groundbreaking or unusual.