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 McINTOSH TUBE AMPLIFIERS - LORON KNOWLEN

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loron_knowlen2011



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PostSubject: McINTOSH TUBE AMPLIFIERS - LORON KNOWLEN   Sat Jul 16, 2011 10:55 am

McIntosh Laboratory is an American manufacturer of high-end audio equipment based in Binghamton, New York. The company was founded in 1949 by Frank McIntosh. The "classic" vacuum tube components of the 1960s include the MC275 power amplifier, the C22 preamplifier, and the MR67 tuner. Later McIntosh solid state power amps are known for their distinctive blue colored meters.

In 1946 Frank McIntosh, a design consultant for broadcast and TV stations, hired Gordon Gow to help him design a high power, low distortion amplifier needed for his clients. This amplifier would become the 50W-1. It included McIntosh’s first patented circuit, the Unity Coupled Circuit, still used by current products

Year Product
1949 50W-1 power amplifier
1950 AE-1 preamplifier
1953 A116 power amplifier
1953 C108 preamplifier
1954 MC30 power amplifier
1954 C4 preamplifier
1957 MR55 AM-FM tuner

In 1956, the company moved to its current location of 2 Chambers Street, Binghamton, NY.[3]

Dave O’Brien joined McIntosh in 1962. He led the McIntosh Amplifier Clinics for the next 30 years.

McIntosh created a Loudspeaker division 1967[4]
MC2505 solid-state stereo power amplifier
Year Product
1960 MC240 stereo power amplifier,
1962 MX110 tuner-preamplifier
1963 MR67 tuners;
1963 MR71 tuners;
1964 C24 preamplifier;
1965 MC250 solid state power amplifier
1967 MC2100 solid state power amplifier
1967 MC2505 solid state power amplifier
1967 MC2105 solid state power amplifier
1968 MX112 solid-state tuner-preamplifier
1965 MAC1500 receiver

McIntosh amplifiers were used at the Woodstock Music Festival in 1969.[5]
Year Product
ML1 Loudspeaker
ML2 Loudspeaker
ML4 Loudspeaker
1972 MR78 tuner

The Grateful Dead's “Wall of Sound” reputedly utilized forty-eight 300-watt per channel McIntosh model MC 2300 solid state amplifiers for a total of 28,800 watts of continuous power

Frank McIntosh retired in 1977 and Gordon Gow became President of McIntosh

More Notable Products

Early 1970s MC 2300 Power Amplifier 300 WPC Early 1980s MC 2500 Power Amplifier 500 WPC Power Guard and similar chassis to MC 2300 Around 1990 MC 2600 Power Amplifier 600 WPC Power Guard final version on MC 2300 Chassis Around 1990 MC 7300 300 WPC and much smaller than MC 2300
[edit] The Japanese Years
McIntosh MA6800 integrated amplifier.

The company was purchased by Japanese car audio maker Clarion in 1990. McIntosh components, particularly the early tube models, are highly regarded in Japan. In a speech shortly after the purchase, Clarion president Yutaka Oyamada told McIntosh employees, "...we like McIntosh as it is, and we have no intention of changing what has made it so successful. Since the Clarion purchase, McIntosh has expanded into car audio and home theater.

In May 2003, McIntosh was sold by Clarion to D&M Holdings, also of Japan. McIntosh continues to operate independent engineering, design, and production operations in accordance with the company's tradition.
cheers
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loron_knowlen2011



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PostSubject: Re: McINTOSH TUBE AMPLIFIERS - LORON KNOWLEN   Sat Jul 16, 2011 10:57 am

(Wikipedia)
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Mark Smith

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PostSubject: Re: McINTOSH TUBE AMPLIFIERS - LORON KNOWLEN   Sat Jul 16, 2011 11:57 am

Godd information Loron, thanks for sharing. Like a Star @ heaven Like a Star @ heaven Like a Star @ heaven Like a Star @ heaven Like a Star @ heaven
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H181980

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PostSubject: Re: McINTOSH TUBE AMPLIFIERS - LORON KNOWLEN   Sat Jul 16, 2011 2:03 pm

Love the old tube amps that I remember as a kid. cheers
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Roy Toshima

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PostSubject: Re: McINTOSH TUBE AMPLIFIERS - LORON KNOWLEN   Sun Jul 24, 2011 10:07 am

The old tube stuff is rare and expensive if you can find it. affraid
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