What is stereo?

There are now two system of high fidelity, monophonic (monaural) and stereophonic. Monophonic is a system that starts from one microphone and is fed through a single high fidelity set. Stereophonic is a double system. Two separate microphones are placed at different sides of the orchestra and two different systems are used to keep the two signals or channels separated. Two separate speakers are used, placed on different sides of you room. Stereo is much like 3-D photography, two slightly different sound reach your ears giving you a new dimension in sound.

H.H. Scott '59

McIntosh C 26

Low distortion is a requirement For high performance in a preamplifier. A typical wave form analysis of the C 26 at 2,5 volts output is a 99.95% perfect reproduction of the input wave, 20 Hz through 20,000 Hz!
Performance is important to your listening expectations. With a Mclntosh you are assured of highest performance because Mclntosh guarantees performance. Your C 26 must be capable of meeting its advertised specifications or your purchase price will be refunded. Mclntosh promises performance and delivers performance.

Endless hours are invested by our engineers carefully and thoroughly testing and retesting individual component parts. These hours are required to provide you with the highest degree of reliability that modern design and manufacturing can produce. Only because of this exhaustive program can Mclntosh guarantee you complete freedom from service costs tor the first THREE YEARS that you own your C 26,

Exhaustive testing and evaluation of each component part makes your C 26 the best value. As an example- the front panel is constructed of materials that are nearly indestructible! The combination of anodized aluminum and glass are impervious to attacks by acids and oils. The subtle beauty of the C 26 will remain unblemished year, after year, after year. This attention to detail increases the value of a Mclntosh at trade in time.

Careful attention to customer needs, attention to changes in customer use, and constant experimentation in new methods makes the Mclntosh C 26 preamplifier the most responsive to customer  needs. Control of remote loudspeaker and main system loudspeakers from the preamplifier is a Mclntosh innovation.
With the C 26 you can record on one or two tape recorders, monitor either one or record from one tape recorder to another! A front panel headphone jack for low impedance headphones allows the enjoyment of programs in total privacy-
Stepped tone controls, separate in each channel permits the accurate repeatability of settings for any program source. The Mclntosh developed concentric switches give maximum flexibility in each channel without unnecessary clutter and complication.
Continuously variable loudness compensation allows the exact amount of compensation to suit your taste at any loudness level. Add high frequency and low frequency filters, a six-position input selector, seven-position mode selector, center channel level control, phase control and a balance control that does not affect the total loudness in the listening room and you have the useful flexibility Mclntosh has designed in the C 26. Added to these values is the complete protection from all service cost for three full years and you know why the Mclntosh C 26 is the best value in a solid state preamplifier, anywhere.
Only Mclntosh offers a free THREE YEAR SERVICE CONTRACT with each piece of equipment!
You can't pay us to service your C 26 for the first three years you own it. Both parts and labor are included in the contract.

BASS CONTROLS:  11 position concentric switches, separate controls for each channel, —20 dB to +16 dB at 20 Hz
TREBLE CONTROLS:  11 position concentric switches, separate controls for each channel, ±20 dB at 20,000 Hz
LOUDNESS;  Flat response, or continuously variable loudness equalization as volume level is reduced.
BALANCE:  When program material is out of balance, rotation of this co
VOLUME CONTROL; Precision "tracked" at all listening levels for true stereo balance. The AC ON/OFF switch is coupled with the volume control.
TAPE MONITOR SWITCH: Two switches, two position mechanically interlocked.
AC OUTLETS:  1 unswitched (Red), 4 switched
LF FILTER:  Flat, or roll-off below 50 Hz, 6 dB per octave, down 12 dB at 20 Hz
HF FILTER:  Flat, or roll-off above 5kHz, 6 dB per octave, down 12 dB at 20,000 Hz
MAIN—Switch the MAIN Loudspeaker ON or OFF without affecting the performance of REMOTE speakers.
REMOTE—Switch the REMOTE loudspeaker ON or OFF without affecting the performance of the MAIN speakers.
INPUT SELECTOR:  6 positions AUX (auxiliary or spare), TAPE 2, TAPE 1, TUNER, PHONO 1, and PHONO 2
MODE SELECTOR:  7 positions: LEFT only to both speakers, RIGHT only to both speakers, STEREO REVERSE, STEREO, MONO, MONO to Left speaker only, MONO to Right speaker only.
HEADPHONES: For low impedance stereo headphones.
CENTER CHANNEL LEVEL Top of chassis control to adjust the output level of the left plus right program material at the CENTER CHANNEL output on the back panel.
PHASE CONTROL:  Electronically reverse phase in the left channel to correct "out of phase" program sources.
TRANSISTOR COMPLIMENT:  10 Silicon-planar transistors, 3 diodes
POWER REQUIREMENT:  117/125 volts, 50/60 Hz, 12 watts
MOUNTING:  Mclntosh developed professional PAN-LOC

FREQUENCY RESPONSE:  20 Hz to 20,000 Hz,  +0 -0,5 dB
DISTORTION: Less than 0.1% at 2.5 volts output, 20 Hz to 20,000 Hz
Phono 1 and Phono 2 : 2 millivolts at 47,000 Ω for 2.5 volts output.
Aux, Tape 1, Tape 2, Tuner : .25 volts at 250,000 Ω for 2.5 volts output.
Phono 1 and Phono 2 : 74 dB below 10 millivolt input, equivalent to less than 2 microvolts at the input terminals.
Aux, Tape 1, Tape 2, Tuner : 85 dB below rated output.
Main : 2.5 volts with rated Input. Up to 10 volts can be developed without distortion.
Tape : 2.5 volts with rated input.
Phono : input signal of 10 millivolts produces 1.2 volts output.
Center Channel (L I R) : 2.5 volts. A level control adjusts the Center Channel output from -6 dB to +6 dB with respect to MAIN output.
Main : 2,000 ohms, designed to operate into 47,000 ohms or more
Tape Output : About 200 ohms, designed to operate into 47,000 ohms or more
Center Channel (L + R) : About 1,200 ohms, designed to operate into 47,000 ohms or more

Front panel : 16" wide by 57/16" high;
Chassis : 15" wide by 5" high by 13" deep, including PAN-LOC shelf and bach panel connectors;
Knob Clearance—1½" in front of mounting panel
WEIGHT:  18 pounds net, 28 pounds in shipping carton
FINISH:  Front Panel—Anodized goId and black with special gold/teal panel nomenclature illumination
CHASSIS:  Chrome and black

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