tube amplifiers

Alex Chorine built his very first amplifier when he was 15, and one amp led to the next. He kept building amps for friends and friends of friends. This was in the Soviet Union, where there was no established high-end audio industry. Chorine went on to earn an electrical engineering degree from the Moscow Institute of Technology, and started working with TVs, but audio was his passion. He took on side projects building guitar and bass amplifiers and pro sound systems. He modified European VCRs to work with Russian TVs. He came to the U.S. in 1992, and a … Read more

By the late 1960s everyone assumed solid-state gear would soon replace tube electronics, but here we are in 2011 and tubes are still here. Rock and blues guitar players still crave the sound of tube guitar amplifiers, and a significant number of audiophiles are die-hard tube fans.

While tube amps don't measure as well as their solid-state counterparts, some people feel tubes more faithfully reproduce the sound of voices and real instruments. As always, opinions about sound quality don't necessarily correlate with by-the-numbers assessments. We like what we like.

I was curious to hear one of Eddie Current's … Read more

Jolida may not be the most recognizable name in consumer electronics, but the little company has been selling overachieving budget-priced audiophile tube gear in the U.S. since 1992. I have a few friends using Jolida gear, and they're all enthusiastic supporters of the brand. I reviewed the Jolida FX10 all-tube amp late last year.

The Jolida JD301RC ($425) is a 30-watt-per-channel integrated stereo amplifier. It's a "hybrid" design that uses a pair of vacuum tubes (12AX7) in its preamplifier section, and National Semiconductor MOSFET transistors in its power amp stage. The JD301RC has four line-level … Read more

Some high-end audio designers see themselves as artists. They might invest years of their life into perfecting an audio circuit or devising a turntable that's immune to disturbance from external vibrations from people dancing nearby. I'm fascinated by the sort of people who advance the art of audio design, but I'm also intrigued by designers exploring the aesthetic of high-end audio.

Case in point: Mateusz Glówka's Block tube amp; I think it's a stunning industrial design. The stainless steel tube amp is a functioning prototype, but may eventually be put in limited production. … Read more

Luxman was making high-end amplifiers long before the term "high-end" was coined. Take the original Luxman SQ-38 integrated amplifier; it debuted in 1963, the upgraded SQ-38D came in 1965, and the design was revised and refined again and again over the years. I recently reviewed the SQ-38u, which is the 11th incarnation of the amp! The new one still looks like 1970's hi-fi, but its insides reflect modern thinking. Or should I say modern tube amplifier thinking? The complete SQ-38u review appears in the latest issue of Tone Audio magazine.

There's a weird thing happening in … Read more

I've reviewed a number of entry-level tube amplifiers--the Miniwatt N3, Jolida FX 10, and the Decware Zen Triode SE84C+--but the Neuhaus Labs T-1 is a very different take on the category.

The vacuum tube was invented more than a century ago, but tube amps are still favored by a significant number of audiophiles. I'm in that group; there's something about tube amplifiers' musicality that's rarely equaled by solid-state electronics. The Neuhaus T-1 ($495) is a "hybrid" tube/solid-state design, and uses a pair of tubes (type 6N2) in its preamplifier section and transistors … Read more

Americans love power. We buy 320-horsepower Chevy Tahoes to haul the kids to soccer practice. For home theater, the magic power number for receivers is 100 watts, and it has to be a seven-channel model, even though 80 or 90 percent of home theater buyers are perfectly happy with five-channel sound.

Americans equate power with quality, but I'm here to tell you there's another way. Sure, power is cheap, and a the-more-the-merrier strategy works well enough most of the time. Let's just be clear on what amplifier power provides: it defines the upper limit of how loud … Read more

Decware makes low power amplifiers and high-end speakers in the United States. Their entry-level Zen Triode amplifier ($775) pumps out 2 watts per channel, and if you need more get the 6 watt Zen Taboo ($995), or the mighty 26-watt Zen Torii ($2,495). The Zen Triode was the company's very first model and has charmed tough to please high-end critics on a regular basis.

Trust me on this; you'd be amazed how good a few watts can sound, and when they're matched with the right speakers, micro power amps can definitely play loud enough to annoy … Read more

"Good enough" audio is the order of the day, but here at The Audiophiliac it's all about great sounding gear, which can get really expensive. Usually, but not always, so here's a Top 10 list of great gear that won't break the bank. Prices run from $8 to $1,995, and seven of the ten are under $650. All are truly exceptional performers, affordably priced. (Just note that these are my personal picks; see CNET's list of best home audio products for the editors' official recommendations.)

Grado SR60i headphones ($79). Grado long ago set the standard for unbelievably great-sounding, full-size budget headphones with the original SR60. The SR60's sound had weight, detail and punch far beyond the capabilities of most under $100 'phones. Jim Austin, over at Stereophile magazine, recently reviewed the SR60i, and he thinks Grado's upgraded design surpasses the original SR60.

Ikea Lack hi-fi component stand ($7.99) It's made of particleboard and ABS plastic, and it comes in a variety of painted colors (and "birch effect"); it's 21.3 inches wide and deep, and 17.75 inches high. Ikea doesn't present the Lack as audio furniture; it's a side table, but audiophiles all over the world have used it to support their prized possessions. Build quality is surprisingly sturdy.

Sony XDR-F1HD HD Radio ($100). I guess most of you don't listen to radio anymore, but if you're lucky enough to still have a great NPR or college station nearby, you gotta hear this radio. Plug it into your computer or hi-fi and it'll sound better than Internet radio by a long shot.

Samsung HT-C6500 home theater in a box system ($649, pictured at top). I've probably reviewed more HTIBs than anybody, but this new Blu-ray Samsung HTIB really stood out from the crowd. First because it doesn't have the feeble, thin sound I associate with the petite speakers that come with most HTIBs. The sound is rich, full, and thanks to the HT-C6500's potent subwoofer, powerful.

Altec Lansing Expressionist Ultra MX6021 PC speaker-subwoofer system ($200). I checked out Altec's mighty PC sound system when David Carnoy was working on his CNET review. Wow, this thing rocks! It's remarkably clean-sounding, and the subwoofer goes really deep, without the boom and bloat so common to computer speaker systems. Face it, you're never going to get great sound out of pipsqueak speakers, the Altec system's subwoofer is 15.8 inches tall by 15.1 inches wide by 10.2 inches deep, and the satellites sport 3-inch midrange drivers and 1-inch neodymium tweeters. It's easily the best sounding $200 speaker/subwoofer package on the planet! … Read more