rob Brandt
Active Member
I think he stated earlier that he preferred Yorx.......What period amps did you like back then? Say the 70s in general before the high end really started up with multiple players?
I think he stated earlier that he preferred Yorx.......What period amps did you like back then? Say the 70s in general before the high end really started up with multiple players?
No one liked the sound of acoustic research gear but audio research from that era is generally well liked. Was that a slip?.
Acoustic Research, McIntosh, DYN-Audio, Phase Linear
Kind of expensive. I think that amp was around $3k at the time, so there’s a good chance no one would bother unless they had a subsidy to absorb some of the R&D costs. STAX had such a subsidy from the Japanese Gov. Quite a few of the halo products out of Japan were the result of subsidies.And it was such a successful design that everyone in the industry copied it........................
LOL
Class AB operation was found in the 1949 Williamson tube amplifier. Its use was quite common by the mid fifties with inexpensive Dynaco amps like the Mark II and higher powered Mark III.sigh. Marantz built all of their amps to shift from class A to class B at a certain wattage to avoid clipping.
why don't you prove that statement with some actual print article from the time period. The radio museum has several decades from multiple publications available online. Or better still, publish your own comparison data from 45 year ago.
Each person has his own point of reference, but mine is apparently quite different from his.rob brandt not only believes his Marantz amp is the best amp ever made, but also seems to have a near-pathological compulsion to convince others of that claim...
I owned a Micro Seiki turntable (one the direct drives) back in the early 80s. Great turntable. I remember at the time one of Micro Seiki's top of the line turntables weighed over 250 pounds and sold for over $10,000.00. That was a lot of $$$ back in the day.Just revisited this thread - for what it's worth, I will mention Thorens turntables. I've owned a lot of vintage gear, and have mixed and matched them in myriad ways, but the one clear, unequivocal difference maker in terms of sound quality is when I got my Thorens. My friends who were into hi-fi agreed.
But looking at the big picture - it's a privilege to even have an opinion on vintage hi-fi gear! It means we have been enjoying this great hobby.
I worked part time for a hifi shop in the mid 70s. It was there I was introduced to Audio Research and Magneplanar. My reference as of '74 was Tympani IIIs tri-amplified using Audio Research electronics sourced by a Linn Sondek table with SME arm and Ortofon MC cartridge. The owner later carried Acoustat and Dayton-Wright electrostats. In '76, Julian drove his XG-8s with a Threshold 800A amp using a Mark Levinson JC-2 preamp. That was a phenomenally good sounding system at the time.
A TD-125 with SME was a killer combo. I opted for a similar approach using an Ariston RD-11s (cousin to LP-12) with SME3009.Just revisited this thread - for what it's worth, I will mention Thorens turntables. I've owned a lot of vintage gear, and have mixed and matched them in myriad ways, but the one clear, unequivocal difference maker in terms of sound quality is when I got my Thorens. My friends who were into hi-fi agreed.
That makes me moithThis one still ranks highly. I used it all day today.
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Class AB operation was found in the 1949 Williamson tube amplifier. Its use was quite common by the mid fifties with inexpensive Dynaco amps like the Mark II and higher powered Mark III.
It wasn’t about avoiding clipping- you can overdrive amplifiers of all classes. It was simply a more efficient mode of operation allowing higher power output for a given output device.
There was a 1947 version and a 1949 version with a revised circuit.The Williamson is from 1947, not 1949...
I chose an arbitrarily earlier amplifier to illustrate that the concept was not new.Class AB was well established way before the Williamson came out.
Yes, that's what I observed.but at the same time enjoy increased power output compared with Class A operation.
There was a 1947 version and a 1949 version with a revised circuit.
I chose an arbitrarily earlier amplifier to illustrate that the concept was not new.
Yes, that's what I observed.
BTW, my post contains a hyperlink (blue text) to the same document. Click "1949 version".Understood, you just got me thinking hey who was the first to use Class AB?. Both versions use the same operating conditions on the output stage, shown here:
I've read through this thread and slowly realized that. Instead of being entitled to his own opinion he thinks he's entitled to his own fact. Entertaining to witness.rob brandt not only believes his Marantz amp is the best amp ever made, but also seems to have a near-pathological compulsion to convince others of that claim...and when he cannot, he resorts to name calling, denigration, etc. As you would expect, he cannot stand it when someone corrects him as regards any errors of fact...such corrections always generate a wave of nasty posts.