RMAF17: Tube Amps and a Loudspeaker: New Approach to Acoustic Space and Imaging

[@mjmcg]

With all due respect, when Bob started describing his speakers as having a line source array and drivers with spacing equal to the distance between our ears I was immediately taken to my Polk Audio SDA-SRS 2.3TL speakers and their bigger brother the 1.2's which both had multiple tweeters (3 in the 2.3 and 4 in the 1.2) in a vertical arrangement up the center of the front baffle and crossed over in overlapping frequncies top to bottom and cone drivers of 6.5" diameter (no accident) spaced roughly skull width apart to provide intreraural crosstalk cancellation such as Bob is describing here.

[@thomaswachter7782]

Bob Carver is a maverick. Back in the day, he was a company owner and showman all at the same time. Truth be told, he is a wizard and he understands amplifier design.

[@evancharles1182]

You probably dont care at all but does anyone know of a method to get back into an Instagram account? I stupidly forgot the password. I appreciate any tricks you can offer me.

[@fabianryland4297]

@Evan Charles instablaster =)

[@evancharles1182]

@Fabian Ryland thanks for your reply. I found the site through google and Im in the hacking process atm. Takes quite some time so I will reply here later with my results.

[@evancharles1182]

@Fabian Ryland it did the trick and I actually got access to my account again. I am so happy:D Thanks so much, you really help me out!

[@fabianryland4297]

@Evan Charles you are welcome xD

[@samuelsalins8309]

Brilliant man ...👍

[@pauldavies6037]

Learnt a lot about this guy and his unique approach to design very impressed !

[@freewheelin100]

This guy is awesome

[@donalddeorio2237]

He changed HiFi single handedly and brought high end audio to the masses. Read reviews of his equipment in stereo review and audio magazines. The first Carver I bought was the AVR100 receiver. Then av405 paired with the ct27v. Now I own av705x, know this was after he left but I've had it for 17 years and it's a champ. Quiet plays loud stays cool. Nobody like him today, maybe Elon Musk.

[@CompetentSalesUSA]

Thank you Bob

[@D800Lover]

"Voltage times current times time = energy." Did anybody here understand that? It is quite true.

[@andershammer9307]

Just wanted to say I enjoyed myself the 2 times I went to Carverfest.

[@MrCatalysis101]

Wonderful hour. Thanks for posting.

[@dougg1075]

We used to say “ I have the green apple quick steps” so I laughed hearing Bob say I sweated green apples.

[@Stelios.Posantzis]

Huge!

[@Stelios.Posantzis]

54:14 Of course they are! In essence, all multi driver loudspeakers are line arrays and suffer the problems of line arrays and even though, ideally, they only account for 2 or 3 points on a line (for a 2 or 3 driver loudspeaker), their maths are already horrendous enough and that is with the drivers approximated as ideal point sources!

[@53patsfan]

I have owned Carver and Sunfire (since it was introduced) all my life. I bought 2 Sunfire True Subwoofers and BOTH are broken. Both developed a buzzing and one surges up and down. I actually spoke to Bob through email and he told me where to send them, and they came back as undeliverable., I love my Sunfires, but they worked 6 months and have been in a box for 10 years!! PLEASE anyone that can help?? All my Carver amps are still going strong, used daily for 25 years !! That is reliability.

[@carlosoliveira-rc2xt]

Any decent shop can fix them if they don't use proprietary parts.

[@barchetype6430]

Bob Carver, the greatest genius in Amplifierdom, up there with Cavalli and Kevin Gilmore. Although the two latter do not have as many accomplishments as him. Wonder if his company could make Silver 7ts again, the value of those beasts is as high as Mt. Everest!

[@mustardketchup]

I didn't know G. Gordon Liddy made amps. ... Huh, whodathunkit

[@scottlowell493]

It's a prison work-release program.

[@SOS89140]

That's funny

[@thcatt]

I have a question: At th beginning of your lecture Mr. Carver you spoke of getting into th HiFi business and what you needed to do to sell your amps. But you never mentioned how your amps were being manufactured, and by whom. You were a kid then. Who trusted you enough to manufacture quality products for you?

[@TyrantTitan.]

very insightful

[@330rocket]

Enjoyable Thanks

[@cengeb]

Why did all the companys disapear?

[@arthurwatts1680]

When you see a civilian wearing a hat like that, you know straight away that they're either : - rich - crazy - obscenely gifted - all of the above ;)

[@arthurwatts1680]

Possibly - just not sure what end that serves in this demographic.

[@djsjjd15]

You forgot one: -gay hint: the mustache gives away the correct answer

[@cablebrain9691]

@@djsjjd15 Here's a term for YOU......"Troll"

[@kevinbeckenham3872]

Why do want one bob P.A systems in living room; what's wrong with 75 watts a channel from a mcintosh tube amp

[@RickMahoney2013]

I have the Carver HR 772 receiver with infinity reference 4 speakers all from the 80's.

[@cablebrain9691]

And....??

[@barchetype6430]

3:55 He's forgetting Bob's amp actually sounded better in the first test before he had to make it worse to prevent the Editors from telling the differences. Mind, these were amplifiers costing over 10x as much as his.

[@josepeixoto3384]

Never thought i'd see and listen to these world geniuses!! Thanks KZbin. edit i always hated stereo; Jim Morrison never had 2 sets of vocal chords coming at you as he sang; like Bob Carver says here,in stereo you have 4 channels of music coming at you, 2 speakers times 2 ears; that is nonsense,and a gimmick to sell twice the stuff...since the 60s; i love my mono amp,have more than one, and my one speaker box with two 15 inchers in parallel to give 2 ohms; my stereo amps feed a pair of boxes tied up together,if i separate them,the 4 channels take away from the music; i want the music to talk to me,not to confound me ,i don't want to hear voices... Nowadays,finally,i see in the stores ONE loudspeaker for sale,not 2,and i'm glad the herd mentality is wearing off, and thinking outside of the box...

[@rusedgin]

But you do realise that, since the sixties, music is mainly produced in stereo with artistic use of instruments, efects and voice separation? And he still designed a two speaker system. Regards

[@carlosoliveira-rc2xt]

They sell single speakers so one can be used as a center channel for Home Theater. This would be the exact opposite since Home Theater uses many times more speakers than stereo.

[@josetorres5566]

I bet no one has done bluetooth wireless on hifi audio of full frequency spectrum

[@charlessaint2509]

How to unclip pm1400?

[@cengeb]

pop pop pop, lousy audio, on a you tube about audio

[@Dave30867]

It is there stupid battery operated wireless useless microphones every RMAF use this shit setup I even stopped watching them for ages because of this crap.

[@gsarssadams]

They are a little listening, not capturing

[@gw61]

What is the name of the amplifier for $2500 and 5 year warranty on tubes?

[@InsideOfMyOwnMind]

I'm wondering where he sourced the tubes and how many he had to sort through to offer that five year warranty.

[@cablebrain9691]

It appears to be the Crimson 275 Stereo Compact Tube Amp, but it is $2750 now. www.bobcarvercorp.com/products

[@timealchemist7508]

Isn’t it interesting how conferences and videos on the subject of Hi-Fi have TERRIBLE sound production... 😂 Please... guys... spend a little money on decent mics and be aware of the levels/ tonal balance when making a recording. Rant over🤣. In all seriousness, Thank You for the content! Interesting stuff.

[@dedskin1]

They talk like muzik you get, and that is if you get it good , not You tube or mp3, ever existed , sure some songs did, but modern songs , never existed, its a thing made by 10 ppl , in a computer , there is no sound stage , only Panorama set by producer . To say it simple , things these ppl talk about dont even exist . They say " Drums are lower then something else and this can be heard on records " I would tell him what drums , drums in modern songs are buttons , or samples . They are ignoring the reality .

[@raymondleggs5508]

Ppp popp pppp popp pppopppp can't afford a Musicians freind pop filter?

[@usandthemx]

Who paid him to call Thailand delightful? URP!!

[@FJBx100]

Thailand is excessively delightful. Been there 13 times, had good and less good and can conclude that the country and its people are delightful.

[@analogjames3429]

Bob is very knowledgable and talented but no talent for making audio amps or preamps that sound musical. Bright, thin and fatiguing are the traits of his audio to my ears.

[@Geerladenlad]

I've owned several Sunfire amplifiers and bright, thin and fatiguing are none of the audio traits on my amps.

[@idolhanz9842]

Those M-4.0t amps power speakers nicely.