NAT05 XS - Headphone amplifier NAIM - Free user manual and instructions

USER MANUAL NAT05 XS NAIM

SAFETY INSTRUCTIONS In order to comply with current European safety regulations it is essential that the Naim loudspeaker connectors supplied with amplifiers and loudspeakers are used. Do not under any circumstances allow anyone to modify your Naim equipment without first checking with the factory, your retailer, or your distributor. Unauthorised modifications will invalidate your guarantee. Equipment must not be exposed to dripping or splashing and no objects filed with liquid, such as vases, should be placed on the equipment. Batteries (battery pack or batteries installed) shall not be exposed to excessive heat such as sunshine, fire or the like. For your own safety do not under any circumstances open Naim equipment without first disconnecting it from the mains.

Warning: an apparatus with CLASS 1 construction shall be

connected to a mains socket outlet with a protective earthing connection. Where the mains plug or an appliance coupler is used as the disconnect device, the disconnect device shall remain readily operable. To disconnect the equipment from the mains remove the mains plug from the mains outlet. The following label is attached to all mains powered equipment: WARNING Products that display the crossed-out wheeled bin logo cannot be disposed of as domestic waste. These products must be disposed of at facilities capable of re-cycling them and appropriately handling any waste byproducts. Contact your local authority for details of ine nearest such facility. Appropriate recycling and waste disposal helps conserve resources and protects the environment from contamination. Section

Connections Mains Power General Installation NATOS XS Installation NATOS XS Operation NARCOM 4 Remote Handset NATOS XS Connections NATOS XS Specification Declaration of Conformity

ntroduction Naim products are conceived with performance as the top priority. Careful installation will help ensure that their full potential is achieved. This manual covers the NATO5 XS FM tuner. It begins with some general installation notes and statutory safety warnings. Product specific information begins in Section 4. IH is important for both safety and performance that Mains powered Naim equipment is fited with a mains any standard cables supplied are not modified.

1.1 Analogue Audio Interconnect Cables

If options are available with your equipment and installation, DIN interconnect sockets should be used in preference to phono sockets. One end of each Naim fuse on the rear panel adjacent to the mains input socket. Replace it if necessary only with the spare fuse supplied or with an identical fuse. Repeated failure of the fuse points to a fault that should be investigated by your retailer or Naim itself.

2.3 Non-rewirable Mains Plugs

If a non-rewirable plug is cut from a mains lead (for audio interconnect cable is marked with a band to establish its correct orientation. The band denotes the end that connects to the signal source. Naim Hi-Line whaïever purpose) the plug MUST be disposed of in a way interconnect cables wil provide the best results. to render it totally useless. Considerable shock hazard exists if the cut-off plug is inserted into a mains outlet.

2.4 Mains Circuits and Cables

A hi-fi system usually shares a mains circuit with other Audio interconnect plugs and sockets should be kept clean and free from corrosion. The easiest way to clean them is to switch off the equipment, pull the plugs out of their sockets, and push them back in again. Contact household equipment, some of which can cause distortion cleaners and “enhancers" should not be used as the film of the mains waveform. This distortion can in turn lead to they deposit may degrade the sound. - mechanical hum from mains transformers. Some Naim transformers are large in size, making them relatively 2 Mains Power sensitive to such distortion, and it may be necessary Where fused plugs are used 13 amp fuses should be fitted. Fuses of a lower rating will fail after a period of use. Do not wire voltage dependent resistors or noise suppressors into mains plugs. They degrade the mains supply and the sound. Mains Plug Wiring In some territories a mains plug may need to be fitted to the supplied mains lead. As the colours of the wires in the mains lead may not correspond with the coloured markings identifying the terminals in the plug proceed as follows: The wire coloured GREEN-AND-YELLOW must be connected to the terminal in the plug marked by the letter E or by the safety earth symbol or coloured GREEN or GREEN and YELLOW. The wire coloured BLUE must be connected to the terminal in the plug marked with the letter N or coloured BLACK. The wire coloured BROWN must be connected to the terminal in the plug marked with the letter L'or coloured RED. to take account of transformer hum when siting your equipment. Transformer hum is not transmitted through the speakers and has no effect on the performance of the system: however, a separate mains circuit may reduce it, Such a circuit (ideally with a 30 or 45 Amp rating) will also generally improve system performance. Advice on the installation of a separate mains circuit should be sought from a qualified electrician. Ony use either the mains cable and plugs supplied or a Naim Power-Line mains cable.

ntroductio 3 General Installatio Naim equipment is designed to offer the finest performance possible, avoiding compromise wherever practical. This can lead to circumstances that may be unfamiliar. The notes that follow contain advice specifically related to Naim equipment as well as more general warnings about the use of domestic audio products. Please read them carefully. g The Equipment In order to reduce the risk of hum audible from the loudspeakers, power supplies and power amplifiers should be located a reasonable distance away from other equipment. The maximum separation distance for connected equipment is that allowed by the standard interconnect lead. Some Naim equipment is extremely heavy. Check the weight of the equipment prior to lifting and if necessary use more than one person so that it can be moved safely. Ensure that your equipment rack or table can easily support the weight and is stable. Source components and power supplies should be switched on before the power amplifier. Always switch amplifiers off and wait a minute before connecting or disconnecting any leads. Always use the power switch on the product rather than a mains outlet switch. À “thump" may be heard from the loudspeakers as power amplifiers are switched on. This is normal, will not cause any loudspeaker damage and does not point to any fault or problem. À mild “pop” may also be heard shortly after equipment is switched off. Naim equipment takes a considerable time to run in before it performs at its best. The duration varies, but under some conditions the sound may continue to improve for over a month. Better and more consistent performance will be achieved if the system is left switched on for long periods. It is worth remembering however that equipment left connected to the mains can be damaged by lightning. Radio Interference In some circumstances, depending on where you live and the earthing arrangements in your home, you may experience radio frequency interference. Controis on broadcasting in some territories allow very high levels of radio frequency radiation and both the choice and exact siting of equipment may be critical. Susceptibility to radio frequency interference is related to the wide internal bandwidth necessary for high sound quality. À radio frequency filter kit is available for some Naim equipment but sound quality will be progressively compromised as more elements of the kit are fitted. In situations of extreme radio interference Naim equipment may be unsuitable. 5 Lightning Precautions Your Naim hi-fi system can be damaged by lighining and should be turned off and disconnected from the mains when there is risk of lighining. For complete protection all mains plugs and any aerial cables should be disconnected when not in use. 6 Problems Consumer protection varies from country to country. In most teritories a retailer must be prepared to take back any equipment he has sold if it cannot be made to work satisfactorily. À problem may be due to a fault in the system or its installation so it is essential to make full use of your dealer's diagnostic skills. Please contact your local distributor, or Naim directly, if any difficulties cannot be resolved. Some Naim equipment is made in special versions for different territories and this makes it impracticable to arrange international guarantees. Please establish the local guarantee arrangements with your retailer. Contact Naim directly for help and advice if necessary. 7 Service and Updates It is essential that repairs and updates are only carried out by an authorised Naim retailer or at the Naim factory. Many components are custom made, tested or matched and appropriate replacements are often unobtainable from other sources. Direct contact to Naim for service or update information should be made initially through Customer Services: Tel: +44 (0)1722 426600 Email: info@naimaudio.com Please quote the product serial number (found on its rear panel) in all corespondence.

NATOS5 XS Installatio The NATO5 XS should be installed on a dedicated equipment stand intended for the purpose. Do not stand it directly on top of another item of equipment. It should be installed in its final location before connecting cables or switching on. Ensure also that the system volume is turned down before switching on. A number of power supply upgrade options are possible for the NATO5 XS. A diagram illustrating the connection of one of these is shown in Section 7. Contact your local retailer or distributor for advice if necessary on power supply connection. Aerial Requirements 4.2 Audio Outputs The NATO5 XS aerial input socket must be connected via 75Q low-loss coaxial cable to a suitable aerial. Ideally the aerial should be mounted on the roof, clear of obstructions and as high as possible. Use of an aerial preamplifier may disturb the muting operation of the tuner and may cause cross-modulation problems [interference from an adjacent strong radio broadcast). Such preamplifiers should only be used as a last resort. Radio broadcasts are usually transmitted from different sites even though the target areas of the services may be similar. This means that unless the transmitters are in almost the same direction looking from your house, an aerial aligned on one transmitter will give less than optimum performance on the other. In these circumstances you should fit an aerial rotator, or a less directional aerial if appropriate. The more sensitive and directional the aerial you use, the worse will be the reception in directions other than the one towards which the aerial is pointing. If you are particular interested in receiving a wide range of VHF transmissions an aerial rotator is a necessity. Your retailer will be familiar with local conditions and will be able to advise you on which stations you can expect to receive satisfactorily. The NATOS XS is fitted with both DIN and RCA-phono output sockets. Use of the DIN option is preferred, however, if the RCA-phono option is to be used it must be selected once the NATOS XS is switched on. Section 5.2 describes output socket selection.

4.3 Power Supply Upgrades

The NATOS XS can be upgraded through the addition of an external FlatCap or Hi-Cap power supply. The external supply works with the internal power supply of the NATOS XS to offer both a greater number of separate supplies and more sophisticated voltage regulation. The upgrade power supply is connected to the NATOS XS via a 240 five-pin DIN cable. Ensure that both the power supply and NATOS XS are switched off when making connections. Remove the link plug and connect the supply cable ensuring that he connectors are securely attached. From their respective power switches, switch on the power supply followed by the NATOS XS. Diagram 7.2 illustrates the connection of an external power supply.

NATOS XS Ope 5 NATOS5 XS Operatio Once the NATOS XS is installed and all connections are secure it can be switched on. If an upgrade power supply is connected this should be switched on first. After switch-on the tuner will remain muted for 25 seconds while control systems and circuits stabilise. During this time all four front panel buttons will illuminate.

5.1 Front Panel Buttons and Handset Keys

The NATOS XS can be operated either from its front panel buttons or from the remote handset (switched to tuner mode). The handkset also provides control of station preset memory and recall facilities. Section 6.1.3 describes preset memory and recall. The front panel buttons and handset keys operate as follows (handset keys are shown in brackets): mode: Toggles the tuner through three operational modes: frequency, scan and preset. Preset mode is covered further in Section 6.1.3. down: In frequency mode, the down button or left (4) (0 key adjusts tuning frequency downwardk in 50kHz steps or continuousiy if held. In scan mode, the down button or left ( 4 ) key causes the tuner to “scan” down the FM band searching for signals above a preset level. The tuner will stop at each tuned station and, using the remote handset, the option to store the station as a preset will be available (see Section

6.1.3). If no satisfactory signals are found during

the first scan, a second scan at a lower preset signal level will automatically commence. In preset mode, the down button or left (4) key causes the tuner to step sequentially down through previously stored stations. up: Controls the tuner in a similar manner to the

0) down button and left (4 ) key.

mono: Combines the left and right channels to (mon) produce a mono output signal. Switching to mono can reduce background noise with weak stereo signals. The mono setting is stored when a station is saved as a preset. Note: The front panel mono button indicator will illuminate when mono is selected.

5.2 Output Socket Selection

À pair of RCA-phono output sockets are fitted on the NATOS XS rear panel to provide an alternative to the preferred DIN socket. Proceed as follows to select the RCA- phono sockets. Press and hold the remote handset mode key (handset in tuner mode), or the front panel mode button, until the mode button indicator flashes. Further operations of the mode key or button will now cycle through each combination of the two socket types (DIN only, RCA-phono only or both]. The selected option is indicated on the tuner display as shown below: Socket Option Tuner Display DIN tH Phono 00 Both 8 00 To avoid compromised sound quality, do not select both socket types unless their simultaneous use is unavoïdable. Press and hold the mode key or button a second time to exit from socket selection mode. Socket selection mode will automatically exit after five minutes if no key or button is pressed. 3 Front Display and Indicators The NATOS XS front panel display and indicators provide visual feedback on tuner operation. Display Displays tuned frequency, selected preset number or “-" indicating that no preset number is allocated to a specific tuned frequency. Allocation of tuned frequencies to preset numbers is covered in Section 6.1.3. Indicators Indicates that both a stereo signal is received and stereo operation is selected. stereo: freq: _ Indicates that the tuner is operating in frequency mode. scan: _ Indicates that the tuner is operating in scan mode. preset: _ Indicates that the tuner is operating in preset mode. 4 Fault Conditions The NATOS XS will indicate that a power supply or link plug is incorrectly installed by flashing al four front panel buttons. The output of the tuner will be muted in this state. If the mains voltage drops too far below its nominal level the tuner output will be muted and all four front panel buttons will illuminate. After the mains voltage recovers there will be a 2 second delay before the output returns to normal.

NARCOM Remote Handset The NARCOM 4 remote handset is is a multi-functional remote control handset designed to be used with Naim CD players, integrated amplifiers, preamplifiers, preset tuners and subwoofers. To fit batt with their orientation. Replace the battery cover.

6.1 Using NARCOM 4 with the NATO5 XS

Operation of the NARCOM 4 handset is based around three types of keys: System Component Keys, Global Keys and Soft Keys:

6.1.1 System Component Keys

System Component Keys keys switch the operation of the Soft Keys into modes appropriate to each system component: CD player, tuner (tun) preamplifier, etc. Global Keys operate specific component functions regardiess of the System Component Key setting and are available at all times.

Global Keys operate as follows: vol (4 & +}: Adjusts the preamplifier volume and the volume control position. mute: Reduces the preamplifier volume to zero. À second press restores the volume: bal(4 & »}: Adust channel balance on appropriately equipped products. CD Transport: Control CD transport and track selection. scan: Switches the tuner to scan mode and starts a scan from the current frequency upwards. When a station is found the scan will stop. Pressing the scan key will resume the scan mode: Switches the tuner between frequency, scan and preset modes.

In tuner mode the Soft Keys are used to store station presets. Soft keys operate as follows The prog key enables specific FM station frequencies to be assigned to preset memories. To assign a station to a preset either tune manually by inputting the station frequency directly from the numeric keypad or by using the left { €) right ( > ) or scan keys. Stations found by the tuner scanning the FM band can also be saved as presets. When a station is tuned press and hold the prog key. The tuner is now in preset program mode: the preset indicator Wil flash and the display will show -- on the left hand side. Enter the desired preset number from the numeric keypad or by using the left (4 ) and right (>) keys. On its right hand side the display will show — or P if the preset number s, remove the battery cover and insert the batteries into the body taking care is already in use. If the preset number is already in use a different preset number can be entered at this point. Exit from program mode and save the new or overwitten preset by pressing and holding the prog key. To exit from preset program mode without saving (or overwriting] a preset, select 0 0 on the numeric keypadi To erase a preset number, select the preset and press and hold the disp key. The disp key can also be used to switch the tuner display on and off. When the display is switched off it wil iluminate temporarily when a front panel button or handset key is pressed. 2 NARCOM 4 Keys Disp key (soft) Numeric keys (soft) System Component keys CD Transport (global) Volume and mute keys (global) Left (4 ) and right { » ] keys (soft) Prog key and Mon key (soft) Balance keys (global) Scan and Mode keys (global) Note: The info and select keys are unused. naim

NATOS XS Connections and Specificatio 7 NATO5 XS Connec

7.2 NATO5 XS Connected to FlatCap XS Power Supply

Note: The power supply link plug should be fitted unless an extemal upgrade power suppiy is in use. Note: The remote input is intended to accept external (chi nc control signals for multi-room applications. Contact your retailer or Naim Audio directly for further information. power supphyl DIN upgrade sockets. output Ünk plug fitted. power mains input andfuse - NATOS XS

power mains input andfuse FlatCap XS 8 NATO5 XS Specification 9 Declaration of Conformity Tuning Range (Europe): Preset Memory: Output Level: Dimensions (H Mains Supply: xXW x D): VHF/FM 87.5 — 108MHz {fning range regional Variations set internally] Product 99 stations Safety 600mV at 100% modulation 70 x 432 x 301mm EMC 100-120V or 220-240V, 50/60Hz Manufactiurer Naim Audio Limited, Southampton Road, Salisbury, England, SP1 2LN NATOS XS EN 60065 - Audio video and similar electronic apparatus. Safety requirements. EN 55013 - Sound and television broadcast receivers and associated equipment. EN55020 - Electromagnetic immunity of broadcast receivers and associated equipment. EN 61000-3-2 - Limits for harmonic current emissions. EN 61000-4-2 - Testing and measurement. Electrostatic discharge immunity.