The David Berning Co.ZH-270The David Berning Co. ZH-270 One of the Best!Just back from David Bering a complete service check up and new tubes.  I am including a copy of the manual and two sets of NOS tubes at no extra charge.  Rare, much-sought-after, revolutionar...4500.00

The David Berning Co. ZH-270 One of the Best! [Expired]


no longer for sale

Just back from David Bering a complete service check up and new tubes.  I am including a copy of the manual and two sets of NOS tubes at no extra charge. 

Rare, much-sought-after, revolutionary OTL (output transformer-less) amplifier designed by the famous David Berning. Check out the plaudits from Berning owners on Audio Asylum and Audiogon. This review from Positive Feedback is a good summary:

"Visceral, delicate, beautiful, rhythmic, dynamic, in a word, incredible" were the descriptors I used in an email sent to another Berning owner shortly after my first taste of the sound of the ZH270. Today I would add "lightning fast, extended, and musical." In the high-priced world of audio, I believe the Berning ZH270 is a great value. It is a unique product, built by a designer dedicated to finding new and better ways to reproduce sound, and yet, unlike so many other "new and different" components, it is one that fits within the real world. The Berning ZH270 offers small size, simple operation, reasonable upkeep costs, and great sound. Much time has passed since I first heard the ZH270. I still think it sounds incredible. (http://tinyurl.com/lmfkmm2)


SPECIFICATIONS:

Type: Push-Pull stereo amplifier

Power Output: 70 watt per channel

Frequency Response: 1.5Hz to 60kHz (at 1W, 8 ohms; +0, 
-1dB)

Input impedance: 50kOhms

Output Impedance: 1.8 ohms 

Signal To Noise: 94dB, all feedback settings. 20kHz

Distortion: 1 percent

Dimensions: 12.5 x 15 x 4.5 (WxDxH in inches)

Net Weight: 10 lbs.

REVIEWS:

ZH270 commentary and comparison by StereoMike on ZeroGain audio forum, August, 2007.

Starting at the bottom, the bass is wonderfully rounded and perfectly damped, yet solid as a sledgehammer unlike any valve amplifier I had heard before or since. ... Indeed the midrange and treble are utterly natural and delightfully transparent. People talk of veils. With this amp, all the veils are off before the first note's finished. ... I have not heard an alternative amplifier with this speed or openness regardless of price. And this speed is coherent - not varying at all across the audible response. This coherency all adds to the illusion of real musicians playing real instruments - something the Berning is extremely good at purveying. ... A remarkable performance for a 70wpc [push-pull output stage] device that can drive real world loudspeakers to real listening levels.

ZH270 reviewed by Rick Becker, Enjoy The Music, December 2006

"...more importantly, waves of goose bumps rolled over me as I listened... outstanding focus, combined with the outstanding transparency... the estimated tube lifespan being in the neighborhood of 15 to 20 years. Compare that with your own life expectancy. ... Acoustically, it leaps over almost the entire field, landing in the upper echelon of the finest sounding amplifiers."

ZH270 reviewed by Gary Beard, Positive Feedback, Issue 5, 2002

"First and foremost, this amp is musical. It draws you into the music and makes it difficult to tear apart the sound in the typical audiophile way. It does not seem to have a confining musical signature to which one can constantly point. Unlike the VAC, which was seductively rich and beautiful no matter the source, the ZH acts like a mirror of the original, yet does so with a purity of tone and grainless-ness that won't leave your ears scarred from a near-death experience if the source is less than perfect."

The Berning showcases the beautiful tone and timbre of instruments and voices. It is exceptionally clear, and has excellent inner resolution. When you least expect, it will thump you in the chest with deep tuneful bass, serenade you with a beautiful midband, and give you chills with exquisitely delicate treble. The attack and decay of notes are excellent, and the amp's speed and ability to present dynamic contrasts can be startling. All the airy images and soundstaging that I've come to expect of a first rate amplifier are present in spades. All these audiophile qualities add up to an amplifier that is wonderfully musical and engaging.

"'Visceral, delicate, beautiful, rhythmic, dynamic, in a word, incredible' were the descriptors I used in an email sent to another Berning owner shortly after my first taste of the sound of the ZH270. Today I would add 'lightning fast, extended, and musical.' In the high-priced world of audio, I believe the Berning ZH270 is a great value. It is a unique product, built by a designer dedicated to finding new and better ways to reproduce sound, and yet, unlike so many other 'new and different' components, it is one that fits within the real world."

ZH270 reviewed by Charles Hansen, Glass Audio, vol. 12 iss. 1-2, 2000

"Right out of the box, the ZH270 was a sonic pleasure. ... The bass was tight, far more so than I have ever heard on any tube amplifier. Acoustic bass was woody, resonant, and full of life. The extra harmonic richness in electric bass came through in spades, and kick drum had a lively pop...the bass never became tubby or boomy. The soundstage was spacious, wide, and deep. You could hear each individual instrument in even the most complex orchestral crescendo. Piano was portrayed as though you were standing right above the soundboard. You could hear each hammer and pedal in realistic detail. The sound never became confused, nor did the soundstage retreat even the slightest bit. This amplifier was absolutely unperturbed at even the highest volume. Complex pop music with layer after layer of synthesizer was more detailed than I have ever eheard. Yet the ZH270 also tames the bright, edgy CD mixes that seem to be in vogue these days. The best of both worlds!"

ZH270 reviewed by Martin Appel, stereotimes.com, 1999

"My system, however replaced with the Berning ZH270, immediately became more alive, with a good dose of vibrancy, not to mention a metaphoric veil was lifted between the music and the listener. This dear reader added an increase in palpability to instruments and voices with each and every disc. ... The soundstage is much more open, possessing more air that few amps can match. The mid-range, where the majority of music happens, is special. Clarity and articulation go hand in hand with imaging and depth. Instrumental timbres and voices are detailed, three-dimensional, and accurate, with dynamics to match. (Nothing mushy, boomy, or vague here.) High frequencies are clear and bell-like, and free of any grain, without that electronic etching that can irritate--I'm talkin' making music."

ZH270 reviewed by Dick Olsher, Fi Magazine, 1998

"In several respects, the ZH270 pushes the state-of-the-art envelope forward. ... The first and lasting impression was of speed and control-speed beyond ordinary tube amps and control in the class of the finest solid-state designs. It is felicitous of treble transients like almost no other amp in my experience. Transients were articulated with delicacy and a silky smoothness, unfolding with a totally believable organic wholeness. Plucked strings, in particular, were reproduced with convincing attack and decay. Midrange textures took on an electrostatic-like clarity. It was easy for me to resolve harmonies or to make out densely layered orchestration. Low-level detail and the decay of notes into the noise floor of the recording were clear. ... True to its tube origin, the ZH270 dished out a lifelike harmonic palette. ... Feelings and emotions are buried in the music's microdynamics. The Berning had no difficulty at all in retrieving the music's full emotional gamut. It excelled in highlighting inflections in human voice and the filigree-like nuances in bowed strings. It could deliver quite a punch into a compatible load and recovered quickly from overload conditions."

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