EasyManua.ls Logo

McIntosh C48 User Manual

McIntosh C48
28 pages
To Next Page IconTo Next Page
To Next Page IconTo Next Page
Page #1 background imageLoading...
Page #1 background image
McIntosh Laboratory, Inc. 2 Chambers Street Binghamton, New York 13903-2699 Phone: 607-723-3512 www.mcintoshlabs.com
C48
Audio Preamplifier
Owner’s Manual
Question and Answer IconNeed help?

Do you have a question about the McIntosh C48 and is the answer not in the manual?

McIntosh C48 Specifications

General IconGeneral
Amplifier class-
Audio output channels- channels
Peak power per channel- W
Signal-to-Noise Ratio (SNR)- dB
Total Harmonic Distortion (THD)0.002 %
XLR inYes
XLR out4
USB 2.0 ports quantity1
PurposeHome
Product colorBlack
Connectivity technologyWired
AC input voltage120 V
AC input frequency50 - 60 Hz
Power consumption (typical)30 W
Weight and Dimensions IconWeight and Dimensions
Depth457.2 mm
Width444.5 mm
Height152.4 mm
Weight12000 g

Summary

Important Safety Instructions

Risk of Fire or Electrical Shock

Warnings to reduce risk of fire or electrical shock and not expose equipment to rain or moisture.

General Safety Precautions

Read, keep, and follow all instructions; clean with dry cloth; ensure ventilation; avoid heat sources; protect cords.

General Information

Introduction and Performance Features

Moving Coil and Moving Magnet Phono Inputs

Two precision phono pre-amplifier circuits for MC and MM cartridges.

Digital Audio Inputs

Features Coaxial, Optical, and USB inputs for PCM digital signal decoding.

Equalizer Controls with Bypass

12dB boost/cut at five frequencies with bypass option for each input.

Pass-Thru Mode

Allows C48 to be part of a multichannel system for DVD-Audio, SACD.

Installation

Rear Panel Connections

C48 Audio Preamplifier Rear Panel Layout

Identification of rear panel connections for the C48.

Connecting Components

Power Control Connections

Steps to connect power control cables between components for automatic power switching.

Data Control Connections

Steps to connect data cables for remote operation of source components.

Audio Connections

Steps to connect audio cables from various sources to the C48.

Remote Control Push-Buttons

Power Control Buttons

Buttons to switch the C48 ON or OFF.

Volume and Trim Buttons

Buttons to adjust listening volume and select/adjust trim functions.

How to use the Remote Control

Trim Function Operation

Adjusts settings like balance and trim level via TRIM button.

Front Panel Overview

EQ BYPASS Push-button

Bypasses equalizer controls and enters/exits setup mode.

TRIM Push-button

Allows selection of various settings for fine adjustments.

STANDBY/ON Push-button

Switches the C48 ON or OFF and resets microprocessors.

Setup Mode Operations

Operating the Setup Mode

How to enter and navigate the C48 setup menu for customization.

Source Inputs Reassignment

Ability to reassign non-phono inputs to different balanced or digital connectors.

Input Level Adjustment

Adjusting Input Levels

Adjusts levels for each source input to achieve relative volume consistency.

Passthru Mode Configuration

Power Control Triggers

How to Operate the C48

Power On and Off

Procedures for switching the C48 ON and OFF using front panel or remote.

Volume Control

Adjusting listening level using front panel or remote volume controls.

Balance Adjustment

Adjusting listening balance to achieve equal volume levels in each loudspeaker.

Trim Level Adjustment

Fine-Tuning Trim Level

Making fine adjustments to trim level for a selected input source.

Equalizer Mode Control

Bypassing the Equalizer

Disabling the built-in equalizer for a specific input source.

Mono/Stereo Mode Control

Mono Mode Operation

Equalizer Bypass Operation

Bypassing the Equalizer Circuitry

Removing equalizer circuitry from the signal path for the selected input.

Output 1 and 2 Control

Making a Recording

Equalizer Controls

Adjusting Equalizer Frequencies

Raises or lowers amplitude of frequencies centered at 30Hz, 125Hz, 500Hz, 2kHz, 10kHz.

Passthru Mode

USB Input Operation with a Computer

Resetting the C48

Resetting to Default Settings

Resets all adjustable settings (Setup and Trim) to factory defaults.

Specifications

Audio Specifications

Frequency response, THD, rated output, voltage gain, impedance, output impedance.

Related product manuals