Amplifier ReviewsAmplifier Reviews
Emotiva USP-1 Stereo Preamplifier
- Written by John E. Johnson, Jr.
- Published on 09 September 2009
Emotiva's new USP-1 stereo preamplifier, at $399, sets a new standard in performance in low priced components. Besides the standard full range outputs, this preamp offers a split output where you can adjust the low-pass frequency for one (which goes to your subwoofer) and the high-pass frequency for the other (which goes to your main power amplifier). This allows you to essentially bi-amplify, and with the low frequencies removed from the high-passed output, your power amplifier will run more efficiantly, not having to waste power on low frequencies that your speakers cannot reproduce. And, they toss in a phono stage that has both MC and MM settings. This may mark the beginning of phono stages being a standard part of stereo preamplifiers, rather than having to purchase an outboard phono stage. Long live LP's! Oh, there's a headphone jack too.
Bryston 4B SST2 Stereo Power Amplifier
- Written by Kevin Lichterman
- Published on 17 August 2009
Bryston Ltd. is a Canadian company which has been designing and manufacturing audio equipment for over 35 Years. While there are many companies competing in their market, Bryston's gear is coveted by enthusiasts and professionals alike. They have earned the reputation of providing bullet-proof reliability, high performance and value. Byston's value is not due to a bargain basement price. It's the sound and their 20 year guarantee of high performance that can make a Bryston purchase a value. This remarkable warranty speaks to Bryston's confidence in their own quality standards, and it is definitely the exception versus the rule in the A/V industry.
Parasound Halo P7 Preamplifier
- Written by Rick Schmidt
- Published on 20 February 2009
The Parasound Halo P 7 Preamp is a problem solver. The problem is the gap between home theater systems and hi-end stereo systems. Many home theater buyers are fond of the stereo systems that they already own (and paid big bucks for), those that don't already have a stereo might find that they can afford a lot more two channel gear than 7.1 channel gear and since 90-100% of their music collection is two channel.. well, you get the idea. But unless you are a hifi nut like me, you don't have a room dedicated to the stereo and another dedicated to the home theater.
conrad-johnson Classic Vacuum Tube Preamplifier with Phono Stage
- Written by Ed Becker
- Published on 09 July 2009
conrad-johnson (lower case c and j) was formed in the mid-seventies, shortly after I became seriously interested in audio gear. I'm sure the two events were entirely unrelated. Their first product, a preamplifier, was immediately recognized as "state of the art," and so their storied history began. I encourage you to visit their website for more details. There, they provide a long list of products that have been reviewed as "Best of Class", and even "Best in the World."
Emotiva XPA-1 Monoblock Power Amplifier
- Written by Chris Groppi
- Published on 05 January 2009
ADDENDUM - 4/1/09 I (JEJ) was so impressed with Chris' review of the XPA-1 (published in January, 2009), I asked Emotiva to send me one so I could run some of my own tests. I borrowed a different power amplifier from a friend that cost more than 6 times the price of the XPA-1, which I will call Amplifier "X" here. I ran the same tests on both amplifiers. Click on the photo to see the results (go to Page 4: Emotiva XPA-1 On the Bench, and my results are down near the bottom of the page).
Pass Labs XA30.5 Stereo Power Amplifier
- Written by Chris Groppi
- Published on 06 July 2009
What do a 30 watt stereo solid-state amplifier and a 500 watt solid-state monoblock have in common? A lot, it turns out. The seemingly diminutive Pass Labs XA30.5 weighs 75 pounds, has an enormous toroidal power transformer, and uses 20 output transistors to deliver 30 watts of pure class A power. It turns out these specs are similar, or in some cases, better than my recently reviewed Emotiva XPA-1 monoblocks. The XA30.5 proves that rated power is by no means everything. In fact, if you have speakers of even moderately high sensitivity, the XA30.5 renders any discussion of power output irrelevant. When paired with the right speakers, this may be one of the best amplifiers there is, regardless of price.
Emotiva XPA-2 Stereo Power Amplifier
- Published on 15 December 2008
Everyone would like a "good deal" in the world of audio, but there's usually a lot of skepticism involved because of the tendency for such products to be made with cheaper components and outsourced labor.
Marantz PM8003 Stereo Integrated Amplifier
- Written by Jared Rachwalski
- Published on 15 June 2009
Marantz is a name that has been around for a long time; refreshingly they continue to produce quality two channel gear despite branching out into both budget and high-end home theater. My own listening experiences have found their budget home theater receivers to be the most musical for the price. Where other budget offerings can do movies well, most make for mundane music reproduction.
Jaton Operetta 2300a Class A/B Amplifier - First Look
- Written by Jared Rachwalski
- Published on 20 November 2008
The Jaton company has been around for over 25 years. They started with manufacturing PC video cards, and have since branched into home theater and hi-fi gear. Lyra's HD-661 DX speakers were recently reviewed at Secrets, and their interesting design and great sound made me want to try out their amplification. George from Jaton was kind enough to send me a rather large and heavy Class A/B Stereo amplifier capable of putting out 300 watts RMS per channel into 4 ohms. Initial problems with the amplifier has required Jaton to redesign it, and the revised version will be sent to me for review In the meantime, here are some initial observations on the unrevised unit.
Bel Canto S500 Stereo Power Amplifier
- Written by Walt Meger
- Published on 16 March 2009
Let me first state "I like this amp, I really do." What does "Class A, A/B, D, ICEpower" mean to the average audiophile? Will there be an audible benefit by upgrading to the newer technology? If I am making an initial purchase will this technology satisfy me? Does the amp du jour really make a difference in the listening experience for the average listener?
Rotel RMB-1085 Class D (Switching) Five-Channel Power Amplifier
- Written by Jared Rachwalski
- Published on 28 August 2008
Class D switching amplifiers are here to stay. The RMB-1085 is a five channel home theater amplifier that uses ICE power modules which stay cool and deliver very efficient high power, all from a small chassis.
