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Pass labs x 5 amplifiers for home

Nelson Pass born June 27, is a designer of audio amplifiers. Pass is vocal that listening tests remain valuable and that electrical measurements alone do not fully characterize the sound of an amplifier. Oskar Heil with crossover design, woofer selection, and final build cabinetry of audiophile, consumer grade loudspeakers. Later, Joe Sammut became the third partner.


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WATCH RELATED VIDEO: Pass Labs XA100 5 Amplifier Review Conclusion; Listening Session

Pass Labs X 5 Amplifiers


Sure, the fact that I use not only the power and preamplifier but also the headphone amplifier I use as references, must not help my case. In addition to the fact that it is designed and manufactured by Pass Laboratories, there are quite a few other reasons why the INT is not an average integrated amplifier. For the uninitiated, this is the most inefficient type of amp circuit there is.

Class A is the least efficient of all the classes, as most of its energy is converted to heat and the least converted to a musical signal. The one and only Nelson Pass also prefers Class A operation and has gone on record saying that he prefers Class A to all other circuits.

It is easy to hear the advantages of Class A circuit design, but because of the nature of the beast, high wattage Class A amplifiers are less common in many domestic situations. Because of their heat production, Class A amplifiers require heavy-duty hardware compared to most other approaches, but this also comes with the benefit of being able to drive speakers that would normally require higher wattage.

Class A amplifiers conduct high current even at idle, and so they end up sending much of that current to the speakers. Its thick aluminum cabinet, front panel blue LED readout, and huge heatsinks make it look like it has serious audiophile cred. On their website Pass claims that not only does it have huge heatsinks, but internally it also has massive power supplies, which likely are contributors to its near pound weight.

One of the reasons Class A amplifiers sound so great is that they have very simple linear topologies. Fewer parts in the signal path equal greater transparency. Impressed There I go again, sounding like a Pass Labs representative. I am also not easily impressed. No degeneration also increases the efficiency and Class A operating current, allowing greater Class A operation into low impedance and reactive loads.

On its front panel, it has a very readable numerical blue LED volume readout, and includes a silky-smooth running, large volume control knob. A row of push-buttons below the LED is for leaving standby and powering the unit, as well as its input selection.

Some might think that these speakers are too large to be driven by a 25 Watts per channel integrated amplifier. Not so. The Pass Labs INT was able to drive this three-way, five-driver, nearly four-foot tall, pound brutes to just about any volume I desired. Not only were they able to drive these speakers, but they also did this easily, without any distortion mixed with the music that came forth from their drivers. Scroll to continue reading.

They were able to demonstrate the magic that this Pass Labs integrated amplifier was able to inject into the music. It did this not by exaggeration of any of the qualities that were in the recording, but instead, by bringing out the best in the recording, qualities that one might not even know were present. The Pass Labs INT was able to separate the instruments on this sometimes crowded, direct to a two-track recording, not only by isolating each instrument and voice within a huge soundstage, but separating each instrument and voice with dynamic distance, that is, unaffectedly separating them from each other, despite their appearance in the same area of the soundstage, and at the same time emphasizing very slight differences in their apparent volumes.

The many notable sonic traits of this particular Can album are easily passed on by the Pass Labs INT to any of the speakers that I had in my system during the review period. On Record Store Day they released yet another live album, this one from the second half of his N. American tour. They did away with much of the flamboyant stage set and also revised some of the setlist to include tracks from the soon to be released Young Americans album.

There were some changes made to the band personnel, including the addition of more backup singers, which included the inimitable Luther Vandross. I also hope one understands that a piece of audio gear such as the INT deserves and take advantage of the best and most appropriate speakers one can afford, and the best and most appropriate front-ends one can afford at least eventually, as often assembling a system is a process.

Which gets me to the next important thing about the Pass INT it is a relative bargain. One that has more wattage? Has more features? Sounds as good? No way. But it is definitely one of the most affordable integrated amplifier or amplifier that can perform this feat at this level.

I can understand why one would add a speaker system and front-end that costs more than the INT In my opinion, the spartan rear panel of this integrated amplifier is the only negative that I discovered during the review period. Its sound is first-rate, but the INT is lacking in intangibles. Pretty much everything. There are no XLR ins or outs, no subwoofer output s , no tape loop, etc. Not only would the INT cost more if more features were added, but after considering this for only a short time, I remembered what Nelson Pass said — that the best sound comes from simplicity and linearity.

And so, the Pass Laboratories INT lack of extra features, not to mention its Class A circuit, is an indication that its simple signal path from input to output is very likely responsible for a huge part of why it sounds so darn good. I cannot stress this fact strongly enough. Its relatively low power output will be an obstacle for only a few, as it was able to drive many different types of speakers with ease.

It did this while it was able to make the music the focus, not the equipment that was reproducing it. But these things are easy to overlook and work around. This is because the Pass Laboratories INT is a fantastic sounding component that should be considered by anyone who loves music. Your email address will not be published. Save my name, email, and website in this browser for the next time I comment. Our visit to the McIntosh Labs factory in Binghamton, New York was an unforgettable experience and one we plan on repeating.

A very unique one made in Sweden. With a modular design structure that lets users Naim Audio have been designing audio components by their own rules for almost 50 years. Building a great sounding system with these components is Connect with us. Hi, what are you looking for? Click to comment. Leave a Reply. Latest Trending. Flipboard Reddit Pinterest Whatsapp Email.

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The Pass Labs INT-25 Integrated Amplifier Review. The Sweetest Perfection.

My inbox showed a message from Subas Audio. Hans I Jonsson was quick and to the point: "Thank you again for your ongoing work in the audio community. I must say that I am a bit surprised to see your non-use of the Superior X. Much lower intermodulation distortion is indeed detected in large and complex musical passages.

Pass Laboratories, Inc. was founded in by Nelson Pass. Operating out of his shop at home, Pass developed prototypes of a single-ended Class A amplifier.

5-Channel Power Amplifier - 4 x 60W + 1 x 300W @ 2 Ohms


Design for every aesthetic. Powerful sound for every budget. Pass Labs, Inc. Pass began developing a unique prototype out of his shop at home. Pass Labs soon become one of the most prestigious brands in the audio world. Their patented SuperSymmetric technology and timeless designs paved the way for their products to date, many of which still incorporate components used in their original creations. Please fill the form below and we will be in touch with you very soon.

Pass Labs INT-25 Integrated Amplifier Review

pass labs x 5 amplifiers for home

Can you say any piece of equipment or manufacturer is the best. As Roberjerman suggests, best is in the context of other components. Pass labs are great, I still remember my old Aleph 3 and wonder why I sold it. If you put a gun to my head and don't please, I would say D'Agostino, with Dartzeel a close second.

If the speaker is passive, it will require a power amplifier.

Nelson Pass


I know lots of audiophiles who get weak in the knees fantasizing about big, powerful amplifiers. Not me -- I'm drawn to smaller ultra high quality amps. Some of you might recall that just last year I raved about First Watt's sweet-sounding watt-per-channel F7 amp. The Pass Labs XA25 is even better. The company makes a wide range of power amps, and while it's best known for its heavyweight brutes, the XA25 received an outsize share of attention in the high-end audio scene leading up to its release. Designer Nelson Pass ' simpler-is-better approach is in full play on this watt-per-channel into 8 ohms amp.

The Audiophiliac finds bliss with a 25-watt amplifier

The XA25 measures superbly, but its subjective qualities are most special. In an… More details. In an industry where products with great specs are frequently found to be dry and boring, this amplifier breathes life into the music. Entering their 22nd year of production, the X and XA power amplifiers have remained at the cutting edge of audio through continuous innovation and refinement. At Pass they build amplifiers with excessive output stages, huge heat sinks and massive power supplies. Using the highest quality components in simple linear topologies, assembled and tested with great care in Auburn, California.

Pass Labs engineers and manufactures the finest Class A and Class A/B audio products in the world. Founded over years ago, our products elevate your.

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It was an effort to lug this baby up my flight of steps to the Audioholics showcase theater room, one that I felt was well worth it. The X It was clearly designed to power the most brawny speakers out there. The Pass Labs X But, would this be the amplifier choice of Optimus Prime if he was an audiophile looking for a no holds barred high end stereo amplifier?

Alpine introduces the all-new S-Series amplifiers - a perfect match to the S-Series speakers. They also feature excellent sound quality in their price range.

The Point 5 Series represented a highpoint in the evolution of Pass Labs amplifiers. At the time the X. Two hallmarks of Point 5 Series amplifiers are improved power and control. They possess the dynamic range to do justice to the most advanced recordings, the elegance to retrieve the most sensitive microdynamics loudspeakers offer, and the ability to move easily from total silence to explosive transients without losing information. Pass Labs achieved these ends through a number of refinements. The JFETs deliver less noise, higher input impedances, and greater linearity. They operate self-biased within a symmetric quad topology in which each device is cascoded and level-shifted to form the full voltage gain stage of the amplifier.

Phone: Reno Hi-Fi, Inc. Pass Labs help is service passlabs. Reno Hi-Fi and PASS constantly hear that we are some of the most helpful, dedicated and accessible professionals in the audio industry.




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