background image

Adjusting the

Top Panel Controls

PHASE  — T h e PHASE is a two-position switch

that reverses the phase in the left channel. Im-
properly phased program sources can be cor-
rected with this switch.

1. Set the MODE SELECTOR switch to MONO.

2. Stand about 10 feet in front of and mid-way

between your loudspeakers. The sound

should appear to be directly in front of you.

If the sound is not directly in front of you

with the PHASE switch in the 0° reverse the

leads on one loudspeaker. When the sound

comes from the mid-point between the

speakers they are in PHASE.

CENTER CHANNEL LEVEL — Left and right

channels are added to make a center channel pro-

gram source. The program can be fed to a third
amplifier for a center channel speaker or for mono-
phonic remote speakers. The CENTER CHANNEL

LEVEL control adjusts the volume on CTR CHAN-
NEL output jack only. Adjustment is from —6 dB to

+6 dB with respect to the MAIN output. Clockwise

rotation increases the loudness.

Listening to Your

Stereo system

LISTENING TO A STEREO RECORD

1. Turn the INPUT SELECTOR to PHONO 1, or

PHONO 2, whichever is connected to the
record player you wish to hear.

2. Set the MODE SELECTOR to STEREO.

3. Adjust the VOLUME control to the desired

volume.

LISTENING TO MONOPHONIC RECORDS

1. Turn the INPUT SELECTOR to PHONO 1, or

PHONO 2, whichever is connected to the

record player you wish to hear.

2. Turn the MODE SELECTOR to MONO.

3. Adjust the VOLUME control to the desired

volume.

LISTENING TO A TAPE RECORDER

The TAPE input is used:

1. Turn the INPUT SELECTOR to TAPE.

2. Turn the MODE SELECTOR switch to

STEREO or MONO, depending on the pro-

gram on the tape.

3. Adjust the VOLUME control to the desired

volume.

Two tape recorders can be used with the C 26.

Connect a three head tape recorder to TAPE 1

inputs. Connect a second three head tape recorder

to TAPE 2. Recording and monitoring can be done
with both tape recorders.

To monitor while recording your tape recorder

must have separate record and playback heads

and separate electronics. The pushbutton switch

lets you monitor the quality of tape recordings
made during the recording process. When the

TAPE switch is in the IN position it will play the
sound from the tape as it passes the playback

head, a moment after it is recorded. The recording
process continues as usual. When the switch is in

the OUT position normal program from the source

is heard.

HOW TO COPY TAPE

1. Put the tape on the recorder connected to

TAPE 1 input.

2. Turn the input selector to TAPE 1.

3. The signal available at the TAPE OUTPUT

jacks is the playback of TAPE 1.

4. Record on the recorder connected to TAPE

2. The recording can be monitored by press-
ing in the TAPE 2 pushbutton. Instantaneous

comparison on the recorded program with

the original can be heard.

11

Содержание C26

Страница 1: ...READING TIME 32 Minutes Price 1 25 THE MclNTOSH C 26 SOLID STATE STEREO PREAMPLIFIER ...

Страница 2: ......

Страница 3: ...3 Always have service done by a Mclntosh authorized service agency If the instrument is modified or damaged as a result of un authorized repair the SERVICE CONTRACT will be cancelled Damage by improper use 4 The SERVICE CONTRACT is issued to you as the original purchaser To protect you from misrepresentation this contract cannot be transferred to a second owner 5 For your protection Mclntosh selec...

Страница 4: ... which the instrument is to be mounted Position the plastic mounting template over the area of the panel to be cut out for installa tion If the cutout is to be located from the front of the panel begin at step 2 If the cutout is to be located from the rear of the panel begin here 1 On the back of the cabinet panel scribe a vertical centerline through the exact center of the area in which the cutou...

Страница 5: ...te and tighten The screw head should pull into the wood slightly Use two inch long screws for panels under inch or two 1 inch long screws for panels inch thick and larger Attach the mounting brackets to the cabinet using four screws Place the template over the mounting screws The mounting screws should be centered in the A and B holes on the template The sides of the mounting brackets should match...

Страница 6: ...t the MAIN output jacks to the input of a stereo power amplifier The L jack is connected to the left amplifier input jack The R jack is con nected to the right amplifier input jack The output impedance at the MAIN output is 200 ohms Longer cables than are supplied can be connected between the C 26 and the amplifiers The length of the cable is limited by the capacity of the cable The total capacity...

Страница 7: ...TAPE RECORDER 1 TAPE RECORDER 2 TUNER TAPE MACH AC LINE TURNTABLE AC LINE AC LINE 5 FM ANTENNA TUNER GROUND LINE TURNTABLE ...

Страница 8: ...AC LINE MONO AMP S T E R E O AMP AC LINE 6 LEFT REMOTE STEREO LOUDSPEAKER SYSTEM RIGHT LEFT MAIN STEREO LOUDSPEAKER SYSTEM CENTER RIGHT MONO LOUDSPEAKER S Y S T E M ...

Страница 9: ...h makes it pos sible to instantaneously compare recorded material with the source signal from either of two tape recorders used with the C 26 The recorders used with the C 26 should have separate record and playback heads and separate record and play amplifiers MONITOR With the button pushed in the signal source be comes the program as recorded and is fed through the main preamplifier outputs to t...

Страница 10: ...monitor button CAUTION When recording with two tape recorders at the same time from the same program source mutual interference of the recorder bias oscillators can result This can be heard as a howl or squeal in the background when the recordings are played back This noise is caused by insufficient filtering of the bias oscillator circuits in the tape recorders A test run should be made for the p...

Страница 11: ...e The bass is then heard in correct proportion to the mid range Turning clockwise toward MAX position reduces the listening volume while automatically boosting the bass for full frequency listening at even the lowest volume levels BALANCE The BALANCE control adjusts for unequal loud ness in either the left or right channels The loud ness of the channels can be varied relative to each other without...

Страница 12: ... speakers have been connected to the proper push connecters on the back panel the pushbuttons turn the speakers ON or OFF See Diagram Page 6 If the program is to be heard from the main speakers only the REMOTE pushbutton is pushed IN This turns off the remote loudspeakers If the program is to be heard from the remote speakers only the MAIN pushbutton is pushed IN This turns off the main speakers T...

Страница 13: ...HONO 1 or PHONO 2 whichever is connected to the record player you wish to hear 2 Turn the MODE SELECTOR to MONO 3 Adjust the VOLUME control to the desired volume LISTENING TO A TAPE RECORDER The TAPE input is used 1 Turn the INPUT SELECTOR to TAPE 2 Turn the MODE SELECTOR switch to STEREO or MONO depending on the pro gram on the tape 3 Adjust the VOLUME control to the desired volume Two tape recor...

Страница 14: ...LS AUXILIARY TUNER TAPE 1 and TAPE 2 to MAIN OUTPUT 20 dB to TAPE OUTPUT 0 dB PHONO 1 and PHONO 2 at 1 000 Hz to MAIN OUTPUT 62 dB to TAPE OUTPUT 42 dB AC POWER OUTLETS 1 unswitched Red 4 switched FACILITIES AND FEATURES BASS Separate 11 position rotary switches for each channel 20 dB to 16 dB at 20 Hz TREBLE Separate 11 position rotary switches for each channel 20 dB to 20 dB at 20 000 Hz LOUDNES...

Страница 15: ...level of the left plus right program material at the CEN TER CHANNEL output on the back panel PHASE CONTROL Electronically reverse phase in the left channel to correct out of phase program sources TRANSISTOR COMPLEMENT 18 silicon planar transistors and 3 silicon diodes SIZE Front panel measures 16 inches wide 40 64 cm by 5 7 16 inches high 13 81 cm Chassis measures 15 inches wide 38 1 cm by 5 inch...

Страница 16: ...20 FREQUENCY IN HERTZ 20 FREQUENCY IN HERTZ BASS AND TREBLE TONE CONTROL CHARACTERISTICS LOUDNESS CONTROL CHARACTERISTICS 10000 20000 14 100 FREQUENCY IN HERTZ 10000 20000 1000 20 RESPONSE IN dB 0 5 10 15 20 25 20 100 FREQUENCY IN HERTZ 1000 20 15 10 5 0 5 10 15 20 Response in dB 1000 10000 20000 100 Response in dB 20 0 5 10 15 20 Response in dB ...

Страница 17: ...ow 50 Hz The slope of the filters is selected for maximum rejection of objectionable noises Careful design has kept the loss of usable program material to a minimum The signal is then fed into the loudness and balance controls The loudness control is con tinuously variable It may be used in conjunction with the volume control Rotating the loudness control produces any loudness compensation for a d...

Страница 18: ...Block Diagram 16 ...

Страница 19: ......

Страница 20: ...MclNTOSH LABORATORY INC 2 CHAMBERS ST BINGHAMTON N Y 13903 607 723 3512 Design and Price subject to change without notice Printed in U S A 038 867 BE032003 ...

Отзывы: