I've just repaired Quad 909 and I am impressed on how good it sounds, I repaired years ago a Quad 303 also impressed of it's excellent sound, I have not heard the Naim but I doubt it can reach the sound of the Quad

This lad knows his stuff and is bang on the money people. Pleasant to watch.. Keep up the good work ma man....:-)

I replaced my Quad 33/303 combo with the Quad 34/405-2 combo during lockdown. The 405-2 was so much better in all the critical areas than the 303. I recently replaced the Quads with a Willsenton R8 and I now realise that despite the Quads being extremely well built, clean and powerful, they aren’t even close in sonic abilities to the Willsenton. I expected better midrange but I was very surprised to have improvements in the bass. The Quads will stay but not as my main system 🎶🎵

Thanks for posting I am enjoying your videos which are very informative and helpful

Love these videos

thank you for another interesting review, HiFi is just so engaging and of course the music really matters to the listener.

Anybody know the signal to noise ratio with this amplifier? Many thanks! 🙏

Hi another excellent review of two very very nice amp. I am sorry but i missed which preamp did you use for your evaluation ... imhe preamp also plays an important role. Kind regards, gino

I have both those amps, the difference is subtle. Naim more rounded so sweeter in the ears. But to drive Quad ESL 2805, no match. More powerful QSP, more authority and fullness

May be a bit old,,But I usually judge my sound with Emerson,Lake and Palmer..Lucky Man

Good point made about much the misunderstood wattage phenomenon. A doubling of wattage will add 3 decibels (3 db) to the vollume possible, but considering one decibel has long-ago been scientifically worked out as "the smallest difference in vollume the normal healthy younger human ear can possibly detect & hence 3 decibels is not a large increase at all. You'd have to have (i'm guessing) 20 or 50 times the amp's wattage to technically & actually double the vollume possible. (If listening at an eardrum destroying 180 db is you're bag. I said, if listening to....) Then there's the fact that most or near all amp manufacturers now no longer give "THD" parameters (distortion levels) when stating their amp's max vollumes output. An amp that gives say 50"watts at 0.1% THD can be set to give 100"watts at a dirty sounding, ear-fatiging 15 or 20% THD, one needs distortion parameters to tell how many "Clean" sounding watts you could get. Oldies like me will remember the "DIN 4500" Audio Spec's Standard, that manufacturers unaminously stuck to, where watgage was always given with a max' THD figure to tell the truth. Without DIN standard, you get nonsense like ultra-budget cheapo amps rated at: " 1000 Watts music power / 12 Watts RMS. The 12 watts may sound clean at 0.1% T.H.Distortion but the 1000 watts (if it was even possible) would be at 99.999% THD!!! & worse than some fiendish torture method of old

I use QSPs in the mastering room. Very clean solid amps, ultra low distortion, transparent.

absolutely right 🎶...👍

hi music lovers I have been using the quad elite qsp power amp with hegel hd12 preamfi for 3 months, my speakers have atc scm11v2, quad elite qsp has its own current dumping technology, and it has A and AB class sound quality, although the amp is no signal after about 30 minutes after first opening. Even (without music), coolers reach a certain temperature and reach their top performance for listening to music, thanks to the warm operation, the quad qsp sounds almost the tone and taste of the lamp, you can listen to music in the quality of audiophile for years without paying the lamp and excess electricity with the QUAD ELITE QSP amp, quad I love the amp and the sound, quad elite esp power 2x140 8 ohm, 2x250 watt 4 ohm, thd 0.004% (100W @ 8 Ohm; 20Hz - 20kHz)

Hi -you select a very nice topics . British HIFI I drive BC1 with a NAIT2 CB - second set is a NAP250 olive with Harbeth M30 one question - the NAP100 is not really vintage - anyway oldschool and nice my question: any experience with supernait 3? how would you rate the difference in sound to a NAP250 olive paired with a NAC peamp olive?

what DAC do you recommend ❓

Got naim 100 selling on da block for $500? Any good for BSO? And naim 200 for 3x

hi, could you do a vid about pairing solid state with tube....I'm not familiar with hybrid systems......thx

Thank you for a detailed review! 😊 Any opinions on the Quad 405-2 amp? I have the possibility to get either a 606 or 405-2, both are the same price. I will be using a Quad 34 preamp and Aurum Cantus Leisure 2 SE speakers.

With regards to power ratings for amps, there's additional factors that also need to be considered. To start with, there's no standard that manufacturers use to rate an amps power, so each company does it however they see fit. Because of that, you can have an amp rated for 50 watts that puts out more power than one rated for 100 watts. Here's an example. All power ratings have distortion ratings ties to them. If you gave the same amp to two different manufacturers to rate, company A may rate the amp at 100 watts with 2% distortion. Company B may rate the same amp at 75 watts because 2% distortion is too high for their standards. 1% may be the limit on what passes for acceptable distortion, and that will automatically lower the power rating. Not all watts are created equal. A watt is volts x amps. 10 volts x 10 amps = 100 watts, 50 volts x 2 amps = 100 watts, 2 volts x 50 amps = 100 watts. The one with 50 amps will be a lot more powerful then the first two. Power ratings are always tied to a resistance rating. There's usually 2 resistance specs listed. A nominal or average ohms rating tells the overall picture. Then there's the lowest resistance that the amp can safely put out. The lower the resistance, the harder the amp as to work. One amp may be rated for 100 watts at 8 ohms nominal, and the lowest resistance its capable of is 4 ohms. A different 100 watt amp at 8 ohms may be safe to use on a 2 ohm load. The amp that can drop down to 2 ohms is a lot more powerful than the one that does 4 ohms.

People forgot a out room acoustics, floor coverings, curtains heavy curtains wood flooring etc & age of property stone floors reflective surfaces windows so much to consider, Quad tends to be neutral in sound I do like it personally because i am fussy on the build quality & I did sell quad, repaired the Quad valve amplifiers & 303 in early days,

The Quad QSP is for low sensitivity speakers

My quad 44/405's ( bi-amped)sounded uninteresting until they were upgraded with modern caps opamps dual mono psus. B&W matrix 3e's My brother who's super critical reckons I'd have to spend >20 grand to improve the sound and I agree. The stage is simply massive, 3d. You cant hear the speakers; what you hear is glorious full range music delivered as if you were sitting live in Abby road

How much may a Naim Nait 2 cost?

Another great video Kelvin ,I have 2 rb850 power amps rotel preamplifier rc1590 there top one and cambridge audio cxc cd player ,would love to try the Naim 100 with my set up oh sorry linn index 2 speakers biamping ,😊😊😊

Hi, very nice! I had Nad 325be with Keff q5 and sold. Now I got leak and Rogers ravensbrook with Rogers ls4 and Harbeth p3esa. I dont think i ever sell them. People looking for more power to drive Harbeth?. My15W !! The best for Hatbeth! I even have more bass i need. Do you think I will have some new retro interesting sound with Naim or Guaq amplifier to my collections? I like midrange and spaces between instruments. Sugden amp- bass and next voice is not for me. Thanks

Quad 303 or 306...what do you say Kelvin? Really enjoying your channel, thankyou for sharing your insights with us!

Naim is a well regarded brand. Quad is also great. I think you would have got much better results with the Quad power amp using one of their preamps like the Quad 99. Thanks for the info provided.

What pre-amp were you using? yeah?

Were is battle?

Great as always. Thank u. Where are you based btw !?

Quad rocks,,my 606 power amp is a beast,,grips my transmission line speakers with total control..

It will be nice if you can do some Linn amps reviews too...

Thanks for the review. You said a few times in the vid that on some systems the midrange on the clash song can sound garbled. Recently one of my close friends lent me a preamp which has a circuit based on one which John Curl designed and then published. So anyone can build it if they like. What I found that although tonally it was very similar to my NAD it seemed to have the ability to separate the voices of performers from the background so that the lyrics were easier to understand. Even on records which I know really really well I heard words sung which were much clearer. Honestly I am at a loss to understand how that can actually happen (and am I imagining it?) Ps I even took the outputs and fed them into my headphone amp and it was a similar story there too....

Naim nap 100 be great connected to Naim Dac V1

for a speakah, high impedance [eg 15 ohms] and a benign phase characteristic is more important than high sensitivity [eg 100 dB]. If you avoid speakers that are otherwise then our amp needs only a 1 or 2 watts, or get up 15 watts/ch, like the 47 Labs stuff. Or you take my Naim XS2 with a whopping 70 watts /ch. More than that is silly.

140 IS almost triple 50 provided the measuring systems are the same.

Quad is a brilliant Chinese audio company, surprised it's £750 though, usually Chinese owned companies make stuff cheaper

would vintage mono blocks be something that will still be good

you didnt match the quad with the right equipment

Quad is a softer sound, I think. Doesn’t appeal to everyone.

The naim 100 is class d.i thought

Naim: exciting, Quad: boring. Yeah, ended up with Naim. Im a drummer, that helps. No one does drums like Naim.

Yeh... Y'know... Yeh...Y'know...Yeh... Y'know... (repeat with heaps of highly subjective wordes like:- "bigger... fatter... cardboady".) Well done for making an effort and having a go.

NAIM amplifiers are not good amplifiers. I have nap250 and it does not have good sound. especially in bright areas it struggles a lot compared to many other amplifiers!

too much talking for no reason - he would better let us to listen something through each of the amps instead of his really annoying talking