Inside look at Pass Labs XS amps at Quintessence Audio
Пікірлер: 72
@Slammintone5 жыл бұрын
Great videos! You’re partially responsible for me hunting down a refurbished Pass Labs X250 and thank you!!
@techrider20884 жыл бұрын
How do you like the X250?
@Slammintone4 жыл бұрын
Tech Rider I like it lots! Its much nicer overall sound wise compared to my Parasound A21 and breathes so much life into all of my music. It’s a real treat every time I either spin vinyl on my VPI Prime or just hit play on my CD player.
@techrider20884 жыл бұрын
The X250 is a beast of an amp. Bass control is impressive. However, I found the sound dependent on the quality of the preamp. What preamp have you paired with it?
@Slammintone4 жыл бұрын
Tech Rider For now I’m using my Parasound P5. It is a limiting factor but it’s reasonably transparent and spacious if not the punchiest in the low end. I’d much rather a two box Pass Labs preamp or at minimum a Parasound JC2.
@techrider20884 жыл бұрын
I think you’re right on that-optimize the preamp. I owned the X250 and I owned a bunch of preamps from Quad to Bryson to Goldmund to Cary. The sound differed dramatically depending on what preamp was paired.
@NickP3335 жыл бұрын
These vids are great, man! Please keep making more for the nerds that like to see that stuff, and thank you for making the vids you have so far. 🙂
@hahaagi7 жыл бұрын
Very nice video. Thank you very much. Long live inside Hi-Fi !!!!
@asplmn3 жыл бұрын
So.... Approaching 1500 watts of power to be dissipated? That's gotta be some very nice sounding space heaters. I'm a fan. :)
@geoffreybaker9376 жыл бұрын
Awesome beautiful to see inside these amps
@RobertKohut7 жыл бұрын
Watched it again...got it now. Great video!
@deserteddrake4 жыл бұрын
hmm...great amp and I love Pass stuff, but the caps should not be mounted that way in a production model at 5:00 imho
@Smood474 жыл бұрын
Ya why would they do it that way?
@deserteddrake4 жыл бұрын
Smood47 just because the dimensions of the Caps do not fit?!
@Smood474 жыл бұрын
@@deserteddrake But they should find another way to mount them shouldnt they?
@deserteddrake4 жыл бұрын
@@Smood47 Maybe they found in a new revision! :p
@jarnoverhoeven31183 жыл бұрын
Agreed, they should just mount them on the bottom side of the board, seems there is some room
@rickclink91966 жыл бұрын
Gorgeous build quality. I am really surprised to see those 4 smaller caps laying off the circuit board like that.
@mikerodriguez5868 Жыл бұрын
I think it is due to them making contact with the top of the chassis. If you look on the .8 series, they switched to a single 5000uf cap mounted below
@Sams9113 жыл бұрын
Show me the inside of a McIntosh MC462 amp!
@neillist55172 жыл бұрын
Aren't they beautiful? The last time I heard(or was in the presence of) a class A amplifier was at Christopher Hanson LTD in LA back in 1988.
@dreamdiction4 жыл бұрын
Vast amount of hardware (capacitors and power transistors) for a surprisingly small amount of output wattage.
@salvadorrodenas30713 жыл бұрын
Pure class A has those drawbacks
@user-ex9zm7bg3x2 жыл бұрын
yes but remember speakers run on current, not watts
@dreamdiction2 жыл бұрын
@00 00 It would be a little more accurate to say that speakers are driven by current (I), not volts (V). Watts (W) is a measure of "work done" (joules per second). In the case of loudspeakers where resistance in ohms is (R) : To calculate the circuit amperage the formula is I = V / R, or, I = W / V, or, I = (W / R)squared. To calculate the circuit power in watts the formula is W = V x I, or, W = I squared x R or, W = V squared / R. The bottom line is that current (amps) drives the loudspeaker cone but volts (V) carry the amps down the wire to the speaker, so for a long speaker wire length of hundreds of feet you need a 100v line amplifier with an impedance matching transformer on the speaker at the other end of the long wire, as in factory public address systems which are driven by 100 volt line output amplifiers. Hi-Fi amplifiers output to about 8 ohms because they expect short wire length to the speaker. Class A/B amplifiers consume half as much wattage because a Class A amplifier wastes so much wattage as heat. Some of the best amplifiers are class A/B so the "pure class A" amplifiers are more of a marketing exercise than an actual technical improvement.
@ygorsouza46845 жыл бұрын
Beautiful machine!
@salvadorrodenas30716 жыл бұрын
And the wires that connect the reservoirs are thin.
@AsseriHolopainen98765432126 күн бұрын
Rakastan musikin kuuntelemista 🇫🇮👍
@TJ-rg9wr2 жыл бұрын
Dude, awesome video. Now, can you get your hands on the "Pass Labs X1000.5" That's one of my top three components. it willl be nice if you can find a pair of those monsters.
@roimark3586 жыл бұрын
It's a WOW video! nice amplifiers!
@beagle76224 жыл бұрын
Hot 150W class A.Thats overkill.
@aceacer3296 жыл бұрын
Would like to see the inside of the pass labs X260.8 mono blocks
@insidehi-fi87346 жыл бұрын
ACE ACER, I don't have access to that, only one Pass dealer in the Midwest and they don't have those on display.
@aceacer3296 жыл бұрын
Inside Hi-Fi THANKS it's nice what you are doing.
@neway5182 ай бұрын
Please may I know what are the power transistors/mosfets and heatsinks for in the PSU? or the PSU is more than just a PSU?
@neway51819 күн бұрын
I think they are the current source, some clever thinking that to have two boxes connected with only 3 core wires!
@BijuKumar-kj7qr7 жыл бұрын
Nice !!!!!!
@neway51819 күн бұрын
I think there are a total of 288 power MOSFETs in the pair of amplifiers.
@user-zo7lf7br8k5 жыл бұрын
Это для тех кто потерял,бог в помощь,Только голос специалиста точно как перед запуском в космос,и как вы понимоете ,если вы удачно выйдете на орбиту вы останетесь один и вам уже ни кто не поможет.Бога в космосе тоже нет.Я не знаю,выйти на орбиту может ,есть желание один раз у каждого.Но какждый день,для этого нужно быть иноплонетянином.Лично я один из них,и стартовал бы каждый раз после неудачных контактов с Землянами.
@garygranato91644 жыл бұрын
why the clutching system when tighter is better ???
@RobertKohut7 жыл бұрын
So the two chassis are for one channel (a mono block)? That would be four chassis for stereo?
@insidehi-fi87347 жыл бұрын
Robert Kohut Yes four chassis are two channels.
@stevenkoski228 Жыл бұрын
With a bias meter employed, they’re not pure Class A amps, they’re bias switching! Compare these 150w amps to his earlier ‘90’s Aleph 1.2 mono amps which are 200w/each. Which are a minimalist topography concerning signal purity integrity. For every circuit added, it creates it’s own anomaly, which requires more circuitry to be added to counteract it, not a good thing. Modern HiFi has become of fashion show of glitz & overbuilt eye candy waste! Some realize this, while others accept it as progress.
@turbo54836 жыл бұрын
I need more money ...☹️😔
@eisenwerks63885 жыл бұрын
If you have sensitive speakers consider a pair of Pass's little "amp camp amp" amps! I just got a pair of the monoblock version with two linear power supplies for $350 shipped! They aren't on the level of these monsters but they sound truly phenomenal and the 5 watts is just dandy on 107db/1 active crossed tweeters. As an alternative to buying someone's completed kit, Pass sells a full kit to build a stereo amp (sans power supply and case) for less than 150 bucks shipped. You solder the dozen or so components yourself, find a cheap used case and a clean 24v DC bench supply and have a low noise, smooth and incredibly detailed little amp that doesn't make much heat for a class a design. Other ways to get in the Pass door on a poverty budget like ours would be a used pass aleph amp, or one of the many designs he contributed to, like the Nakamichi Stasis amps, adcom gfa-555, a few Proceed designs and others. Also the chinese market is full of clones of these awesome Pass cases. You could build aleph boards and put them in a clone of this case for well under a thousand bucks for 90% of the sound/aesthetics for a tiny fraction of the money-and still a fully Nelson Pass design! Have fun brother!
@saint65636 жыл бұрын
An Audio/Video Audio review w/o Audio.
@clivewilliams94606 жыл бұрын
One question, Do you have them plugged into the Kubala Sosna Xpander ?. Awesome amps. I use the XA 160.8s.
@insidehi-fi87346 жыл бұрын
clive williams, expander or Torus AVR
@clivewilliams94606 жыл бұрын
You use a Torus, Wow, I use a AVR 20 for all my gear. How does it work for you seeing that the XS Amps pushes some high current ?. I saw some Kubala stuff in the video so, I thought you were plugged into the expander.
@insidehi-fi87346 жыл бұрын
clive williams, it was plugged in to a Torus AVR60 Balanced (240v in 120v out)
@clivewilliams94606 жыл бұрын
0K, I understand. I did'nt look into the other Torus models. I wondered if I should have went higher than an AVR 20 ?.(120 in and out, shows 10.5 amps when system is playing). Mine sounds pretty good as is though.
@insidehi-fi87346 жыл бұрын
clive williams, if you're in the US call Mick at Quintessence Audio, he's really knowledgeable on Torus products...
@MMSound-zl4eo5 жыл бұрын
ЧТОБЫ ВСЕ ЭТО ЗА ПИТАТЬ НУЖЕН АТОМНЫЙ РЕАКТОР.
@artcameron79002 жыл бұрын
not worth the price , one would expect better build quality instead the same package as previous versions .. others make better thought out designs and sound quality can be had these days at a far better price - at best trust your ears nothing els
@casiusvalalla80164 жыл бұрын
Trop chère pour se que c'est !
@salvadorrodenas30716 жыл бұрын
What's the purpose of those giant heat sinks in the power supply? It's totally unnecessary!
@dksculpture5 жыл бұрын
The PS appears to be an active design.
@patrickbaillargeon80515 жыл бұрын
"same exact": redundancy is always in vogue I see...
@user-im3ry3it7e5 жыл бұрын
Terrible build quality, arrow do not centred to 12 o clock, capacitors fall down - what is it? - they do not calculate tall of amp and must bend capacitors to down))) oh oh oh.
@StefanoCipo874 жыл бұрын
yes that's why I didn't buy them
@Marco.p-766 жыл бұрын
4:59 ...why did condensers do this? it's a bad job !!! Oi oi oi
@insidehi-fi87346 жыл бұрын
marco not sure what you are referring to
@Marco.p-766 жыл бұрын
condensers ...capacitor!
@insidehi-fi87346 жыл бұрын
I don't have an opinion on here. I make these so you can formulate one.
@Mercury19555 жыл бұрын
It's perfectly fine the way those capacitors are mounted. No harm what so ever.
@randymanx26745 жыл бұрын
Nice video, but...Aluminum buss bars, simulated 'carbon fiber' knobs on the speaker terminals (seriously, at this price point), generic wire connectors that look like they came from Ace Hardware, no gold plating. Not to mention those horrifying aesthetics. Again the cliché' 'More money than brains' rings true. I will 'Pass'...
@insidehi-fi87345 жыл бұрын
I make these videos so people can see inside... I don't have my own opinion on here. You are sure entitled to your own! Thanks for watching and making a comment.