[rollei_list] Re: Wanted to Buy Macintosh SE/30
- From: Jerry Lehrer <jerryleh@xxxxxxxxxxx>
- To: rollei_list@xxxxxxxxxxxxx
- Date: Sun, 17 Sep 2006 18:36:41 -0700
Javier,
Why are you comparing the Marantz 10 with a MacIntosh amplifier? The
Marantz 10 ia a TUNER, not an amplifier. The Marantz 9s were monaural
amplifiers. Love em! The Marantz 7 was a highly overrated stereo pre-amp.
Bob Carver was a huckster. Scott und Fisher were for mid -fi beginners.
Yes, I am highly opinionated!
Jerry
Javier Perez wrote:
> I must have read through the black mac catalog 100 times and drooled after
> the mr80. At something like 3000 dollars it might as well have been 3
> million for a 15 year old. My first mac was a c504. Then I got a pair of
> mc40s. Since then I've gotten most of the tuners and a few 2100s and a few
> of other amps. Not sure what the current production is like but the
> tradiitional units were easily the most over built, over engineered, rock
> solid components the industry had to offer. Yeah Marantz could never touch
> McIntosh, not their 8b or their 10b for that matter. I'm also into HH Scott
> and until a few years ago Phase Linear. Scott made some very interesting
> components including the world's first digital tuner and I am the owner of
> prototype #2! I'm not sure if it was a Von Recklinghausen design but it was
> an engineering tour de force. The funny this is that the combo 6u8 or 6gh8
> voltage amp/invverter t made Scotts cheaper in the 60s now makes for a very
> clean front end. Their outputs were never as elaborate as Mac's but they put
> a lot of thought into them. When I got my fi rst stereo tube scott, an ugly
> 7591 based LK72b, I was shocked at how clean an crisp the thing sounded. I
> blew it years ago when a power cap went bad but I think it may be the best
> sounding amp I ever had. Someday I will be restoring it I think. Then there
> are the Phase Linears! I don't know why I got into these but at some point I
> was caoptivated by the Bob Carver legend. They are all in a closet, 400s
> 700s and preamps. I got tired of replacing caps and output transistors.
> Their value is purely sentimental now. I don't think I'd risk a pair of
> speakers to get B+ in them!
>
> Javier
>
> >From: "Richard Knoppow" <dickburk@xxxxxxxxxxxxx>
> >Reply-To: rollei_list@xxxxxxxxxxxxx
> >To: <rollei_list@xxxxxxxxxxxxx>
> >Subject: [rollei_list] Re: Wanted to Buy Macintosh SE/30
> >Date: Sun, 17 Sep 2006 13:55:45 -0700
> >
> >
> >----- Original Message ----- From: "Javier Perez" <summarex@xxxxxxxxxxx>
> >To: <rollei_list@xxxxxxxxxxxxx>
> >Sent: Saturday, September 16, 2006 8:28 PM
> >Subject: [rollei_list] Re: Wanted to Buy Macintosh SE/30
> >
> >
> >>Did you know that Apple had to license the Mac's name from McIntosh labs?
> >>Some of the computers even say so on the back. I love audio macs!
> >>Javier
> >>
> >
> > Frank McIntosh's secret was a patented method of winding the
> >transformers to achieve close coupling (necessary for Class B amplifiers)
> >without high interwinding reactances (cause distortion). He came up with
> >the idea of bifilar winding, that is, both windings were made at the same
> >time with the wires next to each other. I don't have the patent number. The
> >split load idea was not new, you will find it in some older engineering
> >books. It was used in the British made Quad amplifier before the McIntosh.
> >His other secret was very high quality construction using the best
> >components available.
> > When I was in college I sold Hi-Fi part time. I was able to compare
> >McIntosh directly to other amplifiers and it blew them away; I was
> >astonished at how much cleaner they sounded than some other, very highly
> >reputed, amplifiers. I also had a chance to compare one to a Marantz 8-B on
> >the bench. The 8-B has inadequate power supply capacity and goes banannas
> >when overloaded, all sorts of junk shows up. The Mac just produced clean
> >square waves.
> > Transformer coupling is a practical necessity for vacuum tube audio
> >amplifiers, however its not for solid state circuits. Macintosh continued
> >to use transformer coupling in their solid state amplifers because the
> >transformers were their claim to fame. There was probably an advantage to
> >being able to use matched components for the output but transformerless
> >amplifers have many advantages and better quality unless the transformer is
> >of unusual quality.
> > My hearing is no longer good enough to allow me to pronounce on audio
> >components but when it was I was not a vacuum tube advocate: I lived with
> >vacuum tube stuff for too long to be enamored of its aging problems.
> > BTW, I am in the last stages of restoring two vacuum tube short wave
> >receivers of the sort known as boat anchors.
> >
> >---
> >Richard Knoppow
> >Los Angeles, CA, USA
> >dickburk@xxxxxxxxxxxxx
> >
> >---
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