We would love to have a tour of your collection Kelvin.

Kelvin your the best on you tube for Hifi gear absolutely brilliant

Heed's roots lie in a mid Wales company called Ion Systems who evolved from Nytech (who are back in business) and the Obelisk was originally a Nytech and then Ion amp. I've had a few Ion Obelisks and they're all great amps. Good to see the Heed is up to standard! Great review!

My vintage Marantz produces “fluffy” bass vs a modern Linn Classik which do lean bass. I’m glad your KZfaq channel have two commercials, hope you are getting residual from your hard work. Thanks!

I saw my first receiver, and had to stop and see it. I purchased it in 1975, along with Heil AMT speakers, and a Garrard turntable. Many years ago, but my first system thrilled me.

Oh dear that lighting makes you look great come on now you are attractive enough already . Massive longevity this man

I just listen to a £4k system recently and I can totally agree on what you have said in this video when I compair what that system sounded like to all the budget Sansui Amps and receivers I have got and how they sound

Kelvin Your reviews are so passionate detailed and completely devoid of hi fi bull s#it i think your love of the vintage sound of Sansui has encouraged your subscribers to buy them ( me included ) and to be honest although probably not your intention has helped push up the price of them.

Great comparison! In the future, please tell us more about the systems you test these components in. In this case, tell us a few things about the speakers and players you associate with these amplifiers and how these other components favours or not the items in case. Thank you for all your work, I really appreciate it!

Kelvin, I just love your videos!

Hi Kelvin. Heed is Hungarian. The late Richard Hay who owned Nytech went on to form Ion Systems and then sold the rights to Heed Audio. Richard was also chief engineer for Radford and worked with Arthur Bailey of Transmission line fame.

I picked up a 331 a few years ago, because of Kelvin's review. Sure is magical how good it sounds. I did a recap to it, and upped the output caps to 4700uF. Increased the single PS cap value too. WONDERFUL BASS!

Great video Kelvin. I get more out of your videos than all these guys with graphs. The human ear is bettet than any graph. I always thought vintage speakers had more warmth usually. But maybe it was the amps driving them. I have some recordings with a lot of bass clarinet in them. What a cool warm sound! If you're not playing bass clarinet through tubes, you are cheating yourself. Same with flute. Flutes just sound so full, smooth & fluffy through tubes. But electric guitars really come to life with good solid state equipment. A good argument to have two systems; one tube and one solid state. With both analog & digital connected up with both. Tape and solid state sound really good together.Tube preamps and solid state power amps are usually a good combo. Cd players and tubes usually compliment each other well; with the cds sounding more analog like.

Wow! Welcome back! I was just going through some of your older video's because it has been a while, and there pops up a new one! Yay! I have a 9090 and a 661 , running older Monitor Audio Bronze bookshelf's and a pair of Monitor Audio Silver 300's... I think I like the 661 better. lol. I have had the 9090 since I was 17 in 1977. Again, what a treat having you back at it...loving those Sansui's. Cheers from London Ontario.

My 331 is still going strong. A good DAC going in and a tube buffer in between improved the sound. I have some Mission 700 Leading Edge speakers attached, which improve detail and sound stage a lot.

Another storming review thanks Kelvin , you have brightened up my day

No B.S. from this man! 👍

Another great review. So good at explaining how audio equipment sounds ...

He's bang on about vocals... you can have a lean clean sound, or a warm deep sound but non of it matters if the vocals aren't 'realistic' or if they're set back in the soundstage.

Great stuff from the pre-digital era! My dear little Pioneer SA-610 amp (2 x 45 Watt) from the end of the seventies is still going strong!;-) I've had other amps as well, but they all went down struggling until the lights dimmed or the sound stopped...

As a channel said yesterday, he went to listen to the £4ooo system compared to what it would have cost back in the 70\80s. He said the modern stuff is way better, and I agree. But we can get 25% of that for £500 all in.

Thanks!

I think the best test for hi-fi is to ask yourself how emotionally involving it is and how much you enjoy listening to it. That is what listening to music is all about, after all. It can fall short technically in many ways and still be good, similarly it can be technically impressive but not just not enjoyable to listen to.

Allways amazing warm harted reviews...we should call you Kevin 'Hartsfield' from the vintage JBL hornspeaker.....❤

Very interesting - I have yet to buy a "vintage" receiver / amp.

Thanks for the video I love the 771 I have one it sounds fantastic and works great something to be said about old school I'm not against modern but you know what I mean I found a Yamaha dspa one it's a surround amplifier from 1999 is $3,000 back then I found it in a snow bank took it home blew out the snow with air pressure let it sit for a week inside to warm up and dry out the only problem it had was the display was gibberish I resoldered the 132 pins and it sounds fantastic it kicks it's cuz it was their flagship apparently the robot didn't put enough solder on what a great amplifier 125 watts per Channel real Watts it has a cooling fan but it never kicks in one guy said it only kick in if you had cranked for about 7 hours it's not worth much today but it sure is awesome have a great day I love vintage equipment

I sold my Philips Black Tulip pre and power, I miss it . I kept my Technics se-a7 and pre su-a8 still sounds fantastic.. The price of higher end Sansui has gone through the roof.

Vintage Guru does it again!

You should have used a heed pre/power combo for this test.

That Heed Amp looks very tidy indeed. The Heed web site quotes a +36 area telephone code which is in Hungary. P.S. My first wife was bulbous.

This is very interesting stuff! I have sampled a few good amps. Fisher valve X100a. Also 500b. Luxman R1070. Armstrong valve 6 w p ch. And modern…..Nytech (from Wales) 602 (60watt p. Ch.) Completely different sounds. My speakers also from IMF tls80 to JBL/Klipsch bookshelf. I’m always interested in what you have to say.

Kelvin, loving your work and hoping you are here to stay this time. A couple of questions if I may; 1) what do you think was the first important stand alone amp? I’ve got a 1969 Sansui 101 but were there many before then or were people using a Glenn Miller disc to assess the 1940s vintage? 2) what is the life span for today’s vintage. I’ve got quite a few things but do you think I can keep recapping, replacing tweeters or repairing for another 50 years which is my best hope of life span?

Tin Pan Alley is a great song 👍

Love your videos & this one is no difference 👍

Well done Kelvin!

Excellent and Thanks again

Clinical vs punchy is modern vs vintage.

I love your way of comparing old and new. I totally get it (i think). The "vintage sound" is just.... well... best suited for the vintage music I guess? That's my take on it anyway :)

Vintage stuff just sounds different more musical, but I still like valve equipment, Naim separates etc

AU - 717 is THE BEST SANSUI 👌

I was just wondering if you have heard of the Polk audio Monitor 4s with the peerless tweeter, i seen a version of them which have the audax tweeter but from what I heard about them is that they dont sound as good as the peerless tweeter, any thoughts?

You need to Try Emotiva!

A Naim nap 50? Never heard of it!

Kelvin, you do a good job with comparisons but I think these KZfaq videos are focusing more on analytical factors and less on just enjoying the music.

recently tried a 661 against my 1971 Sansui 4000 - 40 wpc. The older Sansui has a much cleaner, open sound - very tube-like.the 661 was finr - reminded me of a SX 750 Pioneer. nothing beats the older Sansui to me. do you have any from 70- 72 ?

Great review! How would you compare Sansui to Quad 303?

I have a sansui Au505 which has new caps and transistors, sounds good, clear, even a bit modern , but I thinks not all this warmth people speak of ? I.e id like more bass depth, parred to BW dm4 , idea's? Wrong caps ? What gives bass tones?

Keep in your mind 50 years old should naver give you sound as new . So we can not be sure this what I believe some parts will change value as 50 years yousd as new car with old 50 year car

Hello. May I suggest the Akai aa-1020, aa-1030, aa-1040, aa-1050 receivers? I own all of these and to me, these are excellent and can still be had for little money, worth checking out 👌🏼

So where do the differences derive from? Amplifiers will have very flat frequency responses across the audible range, which the ear won't detect any differences. Is it to do with the negative feedback circuits? Any thoughts?

What input-source were you using on the Amps...CDs, Online-Streaming, Vinyl?

Has your Sansui been recapped?

Nothing modern there.