C300 Integrated Amplifier
2 x 25W Continuous power (8 ohms) 45W Dynamic power (8 ohms) 70W Dynamic power (4 ohms) 90W Dynamic power (2 ohms) In excess of 40A peak current! Large, Toroidal Holmgren transformer Class A discrete amp module driver stage Non-intrusive protection against short circuits, overheating and DC offset All Discrete circuitry Short signal path from input to output All sockets Gold plated Remote control for Volume & Muting Headphone socket 7 Line inputs, including two tape in/outs Tone control defeat switch
NAD has a formidable reputation when it comes to integrated amplifiers. The NAD 3020, which is widely regarded as a milestone amplifier; the 310 with its unusual circuit topology offering performance at a price not deemed possible and recently the all new C320, which is taking the world by storm, are some examples underscoring this reputation. The C300 is Erik Edvardsens latest amplifier design, partly a continuation of the C320 and a redevelopment of the 310. The C300s pre-amp circuit topology is virtually the same as that of the award-winning C320. Whereas the 310 used a combination of MOS-FET and Bi-polar output stage, the C300 uses an entirely MOS-FET output stage. Although the C300 takes the place of the 310, it cant be viewed as a direct replacement. The superior performance, remote control, component quality make it even better value-for-money than the 310 is, even if its at a slightly higher price-point.

Features:

The C300 is remote controlled for the most important functions: Volume and mute. Flexibility is another NAD strong point. The C300 has 7 line inputs (including 2 tape in/outputs with dubbing facility) so will not run out of inputs easily. The headphone socket will drive virtually any non-electrostatic headphone. It is fashionable to omit tone controls nowadays: However, provided that the tone controls are properly designed, these can really be a useful tool to make improvements to the overall sound. The C300 tone controls only work at the frequency extremes leaving the critical mid-band essentially unaltered. The tone control circuits can be completely bypassed by using the tone defeat switch.
SPECIFICATIONS - NAD C300 Continuous Average Power Output into 8 ohms Rated impedance Rated distortion(THD 20Hz-20kHz) Clipping power (maximum continuous power per channel) IHF dynamic headroom at 8 ohms IHF dynamic power: Stereo Mode 25W 4-8ohms 0.03% 30W +2.4dB 8 ohms 4 ohms 2 ohms (ref. 8 ohms 50Hz) 40A < 0.5dB -2dB <0.03% <0.03% <0.03%
(Min. Power per channel, 20Hz-20kHz, both channels driven, with no more than rated distortion)
Damping factor Peak undistorted O/P current (into 0.10.5ohms, both channels running) Frequency response 20Hz-20kHz (Tone Control in) at 10Hz/70kHz THD(Total Harmonic Distortion, 20Hz-20kHz, from 250mW to rated output) SMPTE I. M. (IM distortion, 60Hz + 7kHz, 4:1, from 250mW to rated output) IHF I.M.(CCIF IM distortion, 19+20kHz at rated output) and DIM 100

43W 65W 90W >100

Line Level Inputs (DISC, CD, Video, Aux, Tuner, Tape 1, Tape 2) 210kohms/320pF Input impedance (R and C) Input sensitivity (ref. rated power) 200mV Maximum input signal 5V rms Signal /Noise ratio, A-weighted (ref.1W) >100dB (ref. rated power) >114dB Line Level Outputs (Tape 1&2) Maximum output level 5V rms Tone Controls: Treble Bass Dimensions in mm (W x H x D) Net weight Shipping Weight (at 10kHz) (at 100Hz) Physical Specifications 435 x 80 x 285mm 5.0kg 6.2kg 6dB 5dB 17 1/8" x 3 1/8" x 11 1/4" 11 lbs 13.6 lbs
NAD reserves the right to change specifications or design at any time without notice. All specifications are those in effect at time of printing. Printed in Canada.

Stereo Integrated Amplifier
GB Owners Manual F D E I P S Manuel dInstallation Bedienungsanleitung Manual del Usuario Manuale delle Istruzioni Manual do Proprietrio Bruksanvisning
IMPORTANT SAFETY INSTRUCTIONS

CAUTION ATTENTION:

RISK OF ELECTRIC SHOCK DO NOT OPEN
RISQUE DE CHOC ELECTRIQUE NE PAS OUVRIR
CAUTION: TO REDUCE THE RISK OF ELECTRIC SHOCK, DO NOT REMOVE COVER (OR BACK). NO USER SERVICEABLE PARTS INSIDE. REFER SERVICING TO QUALIFIED SERVICE PERSONNEL.
Warning: To reduce the risk of fire or electric shock, do not expose this unit to rain or moisture. The lightning flash with an arrowhead symbol within an equilateral triangle, is intended to alert the user to the presence of uninsulated dangerous voltage within the products enclosure that may be of sufficient magnitude to constitute a risk of electric shock to persons. The exclamation point within an equilateral triangle is intended to alert the user to the presence of important operating and maintenance (servicing) instructions in the literature accompanying the product. Do not place this unit on an unstable cart, stand or tripod, bracket or table. The unit may fall, causing serious injury to a child or adult and serious damage to the unit. Use only with a cart, stand, tripod, bracket or table recommended by the manufacturer or sold with the unit. Any mounting of the device on a wall or ceiling should follow the manufacturers instructions and should use a mounting accessory recommended by the manufacturer. An appliance and cart combination should be moved with care. Quick stops, excessive force and uneven surfaces may cause the appliance and cart combination to overturn. Read and follow all the safety and operating instructions before connecting or using this unit. Retain this notice and the owners manual for future reference. All warnings on the unit and in its operating instructions should be adhered to. Do not use this unit near water; for example, near a bath tub, washbowl, kitchen sink, laundry tub, in a wet basement or near a swimming pool. The unit should be installed so that its location or position does not interfere with its proper ventilation. For example, it should not be situated on a bed, sofa, rug or similar surface that may block the ventilation openings; or placed in a built-in installation, such as a bookcase or cabinet, that may impede the flow of air through its ventilation openings. The unit should be situated from heat sources such as radiators, heat registers, stoves or other devices (including amplifiers) that produce heat. The unit should be connected to a power supply outlet only of the voltage and frequency marked on its rear panel. The power supply cord should be routed so that it is not likely to be walked on or pinched, especially near the plug, convenience receptacles, or where the cord exits from the unit. Unplug the unit from the wall outlet before cleaning. Never use benzine, thinner or other solvents for cleaning. Use only a soft damp cloth. The power supply cord of the unit should be unplugged from the wall outlet when it is to be unused for a long period of time. Care should be taken so that objects do not fall, and liquids are not spilled into the enclosure through any openings. This unit should be serviced by qualified service personnel when: A. The power cord or the plug has been damaged; or B. Objects have fallen, or liquid has been spilled into the unit; or C. The unit has been exposed to rain or liquids of any kind; or D. The unit does not appear to operate normally or exhibits a marked change in performance; or E. The device has been dropped or the enclosure damaged.

POUR VITER LES CHOC ELECTRIQUES, INTRODUIRE LA LAME LA PLUS LARGE DE LA FICHE DANS LA BORNE CORRESPONDANTE DE LA PRISE ET POUSSER JUSQUAU FOND. TO PREVENT ELECTRIC SHOCK, MATCH WIDE BLADE OF PLUG TO WIDE SLOT FULLY INSERT.
If an indoor antenna is used (either built into the set or installed separately), never allow any part of the antenna to touch the metal parts of other electrical appliances such as a lamp, TV set etc.

ATTENTION

CAUTION

CAUTION POWER LINES

Any outdoor antenna must be located away from all power lines.
OUTDOOR ANTENNA GROUNDING
If an outside antenna is connected to your tuner or tunerpreamplifier, be sure the antenna system is grounded so as to provide some protection against voltage surges and built-up static charges. Article 810 of the National Electrical Code, ANSI/NFPA No. 70-1984, provides information with respect to proper grounding of the mast and supporting structure, grounding of the lead-in wire to an antenna discharge unit, size of grounding conductors, location of antenna discharge unit, connection to grounding electrodes and requirements for the grounding electrode. a. Use No. 10 AWG (5.3mm2) copper, No. 8 AWG (8.4mm2) aluminium, No. 17 AWG (1.0mm2) copper-clad steel or bronze wire, or larger, as a ground wire. b. Secure antenna lead-in and ground wires to house with stand-off insulators spaced from 4-6 feet (1.22 - 1.83 m) apart. c. Mount antenna discharge unit as close as possible to where leadin enters house. d. Use jumper wire not smaller than No.6 AWG (13.3mm2) copper, or the equivalent, when a separate antenna-grounding electrode is used. see NEC Section 810-21 (j). EXAMPLE OF ANTENNA GROUNDING AS PER NATIONAL ELECTRICAL CODE INSTRUCTIONS CONTAINED IN ARTICLE 810 - RADIO AND TELEVISION EQUIPMENT.
NOTE TO CATV SYSTEM INSTALLER: This reminder is provided to call the CATV system installers attention to Article 820-40 of the National Electrical Code that provides guidelines for proper grounding and, in particular, specifies that the ground cable ground shall be connected to the grounding system of the building, as close to the point of cable entry as practical.
DO NOT ATTEMPT SERVICING OF THIS UNIT YOURSELF. REFER SERVICING TO QUALIFIED SERVICE PERSONNEL

Upon completion of any servicing or repairs, request the service shops assurance that only Factory Authorized Replacement Parts with the same characteristics as the original parts have been used, and that the routine safety checks have been performed to guarantee that the equipment is in safe operating condition. REPLACEMENT WITH UNAUTHORIZED PARTS MAY RESULT IN FIRE, ELECTRIC SHOCK OR OTHER HAZARDS.

REAR PANEL CONNECTIONS

FRONT PANEL CONTROLS

REMOTE CONTROL

NAD C300 Stereo Integrated Amplifier
NOTES ON INSTALLATION Your NAD C300 should be placed on a firm, level surface. Avoid placing the unit in direct sunlight or near sources of heat and damp. Allow adequate ventilation. Do not place the unit on a soft surface like a carpet. Do not place or it in an enclosed position such a bookcase or cabinet that may impede the air-flow through the ventilation slots. Make sure the unit is switched off before making any connections. The RCA sockets on your NAD C300 are colour coded for convenience. Red and white are Right and Left audio respectively. Use high quality leads and sockets for optimum performance and reliability. Ensure that leads and sockets are not damaged in any way and all sockets are firmly pushed home. For best performance, use quality speaker leads of 16 gauge (1.5mm) thickness or more. If the unit is not going to be used for some time, disconnect the plug from the AC socket. Should water get into your NAD C300, shut off the power to the unit and remove the plug from the AC socket. Have the unit inspected by a qualified service technician before attempting to use it again. Do not remove the cover, there are no userserviceable parts inside. Use a dry soft cloth to clean the unit. If necessary, lightly dampen the cloth with soapy water. Do not use solutions containing benzol or other volatile agents. QUICK START 1. Connect the speakers to the rear Speaker sockets and sources to the relevant rear input sockets. 2. Plug in the AC power cord. 3. Press the POWER button to turn the NAD C300 on. 4. Press the required input selector. REAR PANEL CONNECTIONS 1. DISC INPUT Input for additional line level input signals such as CD, Mini Disc player or the output signal from a step-up amplifier for a turntable. Use a twin RCA-to-RCA lead to connect the auxiliary units left and right Audio Outputs to this input. 2. CD INPUT Input for a CD or other line-level signal source. Use a twin RCAto-RCA lead to connect the CD players left and right Audio Outputs to this input. The NAD C300 only accepts analogue signals from your CD player. 3. VIDEO INPUT Input for the audio signal from a stereo VCR (or stereo TV/Satellite/Cable receiver) or other line-level audio source. Using twin RCA-to-RCA leads, connect to the left and right Audio Out of the unit to these inputs. NOTE: These are audio inputs only. 4. AUX INPUT Input for additional line level input signals such as another CD player. Use a twin RCA-to-RCA lead to connect the auxiliary units left and right Audio Outputs to this input. 4 5. TUNER INPUT Input for a Tuner or other line-level signal source. Use a twin RCAto-RCA lead to connect the Tuner left and right Audio Outputs to this input. 6. TAPE 2 IN, OUT Connections for analogue recording and playback to an audio tape recorder of any type. Using twin RCA-to-RCA leads, connect to the left and right Audio Output of the tape machine to the TAPE 2 IN sockets for playback and tape monitoring. Connect the left and right Audio Input of the tape machine to the TAPE 2 OUT sockets for recording. 7. TAPE 1 IN, OUT Connections for analogue recording and playback to a secondary audio tape recorder of any type. Using twin RCA-to-RCA leads, connect to the left and right Audio Output of the tape machine to the TAPE 1 IN sockets for playback and tape monitoring. Connect the left and right Audio Input of the tape machine to the TAPE 1 OUT sockets for recording. 8. SPEAKERS Speaker terminals for speakers with an impedance of 4 ohms or more. Connect the right speaker to the terminals marked R + and R- ensuring that the R+ is connected to the + terminal on your loudspeaker and the R- is connected to the loudspeakers terminal. Connect the terminals marked L+ and L- to the left speaker in the same way. Always use heavy duty (16 gauge; 1.5mm, or thicker) stranded wire to connect loudspeakers to your NAD C300. The high-current binding post terminals can be used as a screw terminal for cables terminating in spade or pin sockets or for cables with bare wire ends. BARE WIRES AND PIN CONNECTORS Bare wires and pin sockets should be inserted into the hole in the shaft of the terminal. Unscrew the speaker terminals plastic bushing until the hole in the screw shaft is revealed. Insert the pin or bare cable end into the hole and secure the cable by tightening down the terminals bushing. Ensure bare wire from the speaker cables does not touch the back panel or another socket. Ensure that there is only 1/2 (1cm) of bare cable or pin and no loose strands of speakers wire. 9. AC LINE CORD Plug the AC power cord into a live AC wall socket. Make sure all connections have been made before connecting to mains.

FRONT PANEL CONTROLS 1. POWER Pressing the POWER switch turns the unit On. The LED will light up red initially and within seconds will turn green. Pressing the POWER switch again will turn the amplifier Off. 2. POWER/PROTECTION LED Upon switching Power on, the LED will light up red for a few seconds before the protection circuit is de-activated. The LED will then turn green and the amplifier is ready for normal operation. The LED will flash when the Mute mode is selected (refer also to section 9. Volume and the chapter Remote control). In cases of serious abuse of the amplifier, such as overheating, excessively low loudspeaker impedance, short circuit, etc. the amplifier will engage its Protection circuitry, indicated by the LED turning from green to red and the sound being muted. In such a case, turn the amplifier off, wait for it to cool down and/or check the speaker connections, making sure the overall loudspeaker impedance doesnt go below 4 ohms. Once the cause for the protection circuitry to engage has been removed, press Power again to resume normal operation. 3. HEADPHONE SOCKET A 1/4 stereo jack socket is supplied for headphone listening and will work with conventional headphones of any impedance. Inserting a headphone jack into this socket automatically switches off the loudspeakers. The volume, tone and balance controls are operative for headphone listening. Use a suitable adapter to connect headphones with other types of sockets, such as 3.5mm stereo personal stereo jack plugs. NOTE: Make certain that the volume control is turned to minimum (fully anti-clockwise) before connecting or disconnecting headphones. Listening at high levels can damage your hearing. 4. BASS & TREBLE CONTROLS The NAD C300 is fitted with BASS and TREBLE tone controls to adjust the tonal balance of your system. The 12 oclock position is flat with no boost or cut and an indent indicates this position. Rotate the control clockwise to increase the amount of Bass or Treble. Rotate the control anti-clockwise to decrease the amount of Bass or Treble. The Tone controls do not affect recordings made using the Tape outputs. 5. TONE DEFEAT The TONE DEFEAT switch by-passes the tone control section of the NAD C300. If the Tone Controls are not normally used and left in the 12 oclock position, then it is advisable to switch out the Tone Control section altogether by using this switch. In the out position, the Tone Control circuits are active, pushing the TONE DEFEAT switch in bypasses the Tone Control section. 6. BALANCE The BALANCE control adjusts the relative levels of the left and right speakers. The 12 oclock position provides equal level to the left and right channels. A detent indicates this position. Rotating the control clockwise moves the balance towards the right. Rotating the control anti-clockwise moves the balance to the left. The BALANCE control does not affect recordings made using the Tape outputs.

7. INFRA-RED REMOTE CONTROL COMMAND RECEIVER The infrared sensor, located behind this circular window, receives commands from the remote control. There must be a clear lineof-sight path from the remote control to this window; if that path is obstructed, the remote control may not work. NOTE: Direct sunlight or very bright ambient lighting may affect the operating range and angle for the remote control handset. 8. INPUT SELECTORS These buttons select the active input to the NAD C300 and the signal sent to the loudspeakers and the Tape outputs. DISC Selects a line-level source connected to the DISC sockets as the active input. CD Selects the CD (or other line-level source) connected to the CD sockets, as the active input. VIDEO Selects the VCR (or stereo TV/Satellite/Cable receiver) connected to the VIDEO sockets, as the active input. AUX Selects a line-level source connected to the AUX sockets, as the active input. TUNER Selects the tuner (or other line-level source) connected to the Tuner sockets, as the active input. TAPE 2 Selects Tape 2 as the active input. TAPE 1 Monitor Selects the output from a tape recorder when playing back tapes or monitoring recordings being made through the Tape 1 sockets. Press the Tape 1 button once to select it and again to return to the normal input selection. Tape 1 is a tape Monitor function which does not override the current input selection. For example, if the CD is the active input when TAPE 1 is selected, then the CD signal will continue to be selected and sent to both the TAPE 2, and TAPE 1 OUTPUT sockets, but it is the sound from recorder connected to Tape 1 that will be heard on the loudspeakers. 9. VOLUME The VOLUME control adjusts the overall loudness of the signals being fed to the loudspeakers. It is motor driven and can be adjusted from the remote control handset. The VOLUME control does not affect recordings made using the Tape outputs. On the remote control handset, press the MUTE Button to temporarily switch off the sound to the speakers and headphones. Mute mode is indicated by the Power/Protection LED flashing. Press MUTE again to restore sound. Mute does not affect recordings made using the Tape outputs. TO MAKE A RECORDING When any source is selected, its signal is also fed directly to any tape machine connected to the TAPE 2 or TAPE 1 OUTPUTS for recording. TAPE TO TAPE COPYING You can copy between two tape machines connected to your NAD C300. Put the source tape in the recorder connected to Tape 2 and the blank tape into the recorder connected to Tape 1. By selecting TAPE 2 Input you can now record from Tape 2 to Tape 1 and monitor the signal coming from the original tape.
REMOTE CONTROL HANDSET MUTE Press the MUTE Button to temporarily switch off the sound to the speakers and headphones. Mute mode is indicated by the Power/Protection LED flashing. Press MUTE again to restore sound. Mute does not affect recordings made using the Tape outputs. MASTER VOLUME or respectively increases or decreases the Volume setting. The motorised Volume Control on the front panel will indicate the level set. NOTE: Direct sunlight or very bright ambient lighting may affect the operating range and angle for the remote control handset.

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1999 NAD ELECTRONICS All rights reserved. No part of this publication may be reproduced, stored or transmitted in any form without the written permission of NAD Electronics
C300 Manual 08/99 Printed in the Peoples Rebublic of China