NAC 332 - Receiver NAIM - Free user manual and instructions

USER MANUAL NAC 332 NAIM

Welcome to your new Naim preamplier. Like all Naim Audio products, the NAC 332 puts musical performance rst. To help realise its full potential, it is important to follow the simple installation and usage guidelines covered in this manual. We start with some product and setup essentials, before moving onto more detailed information in Section 5. Introduction

1. What’s in the box

Please Note: Full safety warnings can be found in the Statutory Safety Manual. 1x NAC 332 1x Document pack 1x Remote control 2x Link plugs 1x Cleaning cloth 1x Power-Line Lite streamphono tunerav aux33

WARNING: Disconnect power before opening

2. Getting to know your NAC 332

Your NAC 332 needs to be connected to one or more sources and to a power amplier (such as the matching NSS 333 streamer and a pair of NAP 350 Power Ampliers), but before you do, please ensure all components are in their nal positions and disconnected from mains power. For optimum performance, use a dedicated hi- support – ideally Naim Fraim – with the preamplier sited above the power ampliers, as shown. You will also need speakers with cables.55

3.1 Connecting your NAC 332 to the NAP 350 power ampliers

Connect two XLR cables (supplied with the NAP 350) from the XLR outputs of the NAC 332 to the XLR inputs of each NAP 350. Ensure the cables are channel-matched: the pre-amplier left output is connected to the power amplier driving the left speaker and the same for the right. Please ensure that the XLR plugs are inserted correctly, which is achieved with the Naim logo on the plug facing upwards. Connect the system automation cables (supplied with the NAP 350) between the NAC 332 Remote Out terminals and the Remote In terminals on the NAP 350.

3.2 Connect your source components

Connect your source components to the NAC 332 inputs as required. The front panel buttons may be assigned to select any input, see section 4.2 The factory default assignments are: Tuner Input 3 RCA Stream Input 7 5 pin DIN AV Input 4 RCA Phono Input 6 8 pin DIN AUX Input 1 XLR CD Input 8 5 pin DIN

Once you have connected your sources and the NAC 332 to the power ampliers, there are just a few more simple steps to take before you can power up your NAC 332 and start playing music. Connect the two supplied link plugs to the NAC 332 power supply upgrade sockets.

Connect the power cable to the NAC 332’s power socket and then to mains power. Switch on your NAC 332 by pressing the standby button on the top right side of the front panel.

3.4 Pairing the remote control

Once your NAC 332 is switched on, you will need to pair the remote control. Insert the provided batteries into the remote control handset. Pressing any of the front panel input buttons (except standby) will enable remote pairing mode for 30 seconds.

WARNING: Disconnect power before opening

The volume ring on the remote will chase when in pairing mode and then stop at the current volume setting when paired. The remote is now paired to the unit and ready to use. stream phono

If an older Naim power amplier is being used a set of appropriately wired cables will be required. If the RCA unbalanced outputs are to be used (for example to connect a sub woofer) the rear panel “RCA output” switch should be set to the “On” position.

4.2 Input re-assignment

Any combination of six of the eight physical inputs can be directly selected from the front panel or remote control buttons. A setup mode is used to change the assignment of the physical inputs to the buttons. To enter setup mode press the front panel button of the rst input to be adjusted until the button starts to ash. The volume knob leds show segments indicating the possible input assignment, with the currently selected input shown by brighter LEDs. While in setup mode the selected source shown by the volume knob LEDs will be heard playing. Turning the volume knob changes the input assigned to the ashing input. While in setup mode press any other source button to adjust the assignment for that input. To exit setup mode press the ashing input button until it stops ashing. The mute button continues to work as normal while in setup mode.

4.3 Input trim adjustment

The relative level of each input can be adjusted over a range of -10dB to +10dB to equalise the volume level between sources. This is adjusted while in setup mode, so rst press the input button to be adjusted until the button ashes. A second press of the button will change to trim setting mode. The LEDs on the volume control will indicate the current trim setting.88

Turning the volume knob will change the trim setting; the source being adjusted will be playing so you can decide on the level required. When satised with the setting, a press of the button will return to the input mapping display, or a long press will exit setup mode.

4.4 AV xed gain (unity gain)

This mode is only applicable to the AV input. The input trim, headroom and balance settings will be ignored while AV xed gain mode is active. Volume control changes cannot be made using the remote or the volume dial of the NAC 332 when in this mode. The output signal will be at the same volume as the input signal. Fixed gain is set while in setup mode, so rst press and hold the front panel AV input button until the button ashes. A second press of the button will change to trim setting mode. The LEDs on the volume control will indicate the current trim setting. Then, using the volume control turn the dial to maximum (far right) until a solid LED block is present. To exit setup mode press the AV input button until it stops ashing.

4.5 Maximum volume function

This mode allows the user to set the overall maximum volume level to prevent accidental selection of high-volume levels. This is adjusted while in maximum volume setup mode, so rst press and hold the front panel mute button. The mute button will ash and the volume dial LED will change when activated. Then, turn the volume control dial either left or right to edit the Maximum Volume value. To set the maximum volume for headphones, insert the headphone jack, the volume dial will change to show the headphone maximum allowed volume, then use the volume control to select the desired maximum volume. Removing the headphone jack will revert the volume dial to showing the main maximum volume. When satised with the setting, exit setup mode by pressing the mute button until it stops ashing.99

Input 6 (8 pin DIN) is compatible with 5 pin DIN leads and can also directly power a Naim NVC TT phono stage. Input 8 (5 pin DIN) has line level outputs mirroring the currently selected source. Note that when this input is selected the source connected will be mirrored, so beware of feedback loops if using a recording source.

4.7 Using headphones

The headphone output is capable of driving most headphones to very high volume levels. While the headphone’s plug is inserted the preamp’s main outputs will be muted. The headphone output has a separate volume setting. When headphones are inserted the volume will be set to the level last used with headphones. When they are removed the volume will be set back to the level last used with speakers.

5. Tips on installing and using your NAC 332

We know you are eager to enjoy your new NAC 332, but we promise it will sound even better once you have followed these guidelines, all designed to help you experience your preamplier without compromise.

5.1 Unboxing and positioning

Your NAC 332 uses high-quality components, including a substantial power transformer and durable aluminium casing. That means the NAC 332 weighs in at 11kg, so please take care when lifting or moving it, and ensure the surface you plan to place it on is stable and can support its weight. For optimum performance, use your Naim products on a dedicated hi- equipment rack – ideally the Naim Fraim or Fraim Lite – to minimise vibrations that can aect sound. No room for a rack? Consider placing your NAC 332 on a Fraim glass shelf on a suitable piece of furniture, to provide solid but discreet support. Never stack Naim products on top of each other, and if you are placing them side-by- side, please leave some distance between the units. To reduce the risk of audible hum from the loudspeakers do not place power supplies or power ampliers close to source or preamplier components.

5.2 Input connection details

The NAC 332 features several source connection options. For the best sound quality, we recommend you use the DIN inputs. +18V 300mA -18V 300mA Ground Type 1: 8 pin DIN1010

When using the NAC 332 with a compatible streamer and power amplier – such as the NSS 333 and NAP 350 – you can synchronise power on/o and logo brightness across your system by connecting the NAC 332 with the optical system automation cables supplied with the NAP 350. The NSS 333 and NAC 332 use the Zigbee system to synchronise their functions. Press any button (except standby) on the front panel of the NSS 333 and NAC 332 to pair them together. Use the ‘Remote Out’ terminals on the NAC 332 to link the ‘Remote in’ terminals on the NAP 350. It is possible to link further power ampliers using the ‘Remote out’ terminals of the NAP 350. If you require a longer distance between your NAC 332 and the NAP 350 than the supplied cable allows for, you can use a replacement 3.5mm to 3.5mm optical cable to the required length. It is also possible to use standard analogue cables with 3.5mm connectors, but an optical cable oers the best performance.

5.4 Powering up/down

Once all your input and output connections are made, connect the supplied mains lead to your NAC 332 and to mains power. You can now power up the NAC 332 by pressing the standby button. If the NSS 333, NAC 332 and a pair of NAP 350 units is connected via System Automation they will switch on in sequence. It is the same procedure to switch o your NAC 332: turn o your NSS 333, NAC 332 and NAP 350 connected via System Automation, by simply pressing the standby button on the front panel of the NSS 333 or NAC 332, which will put your complete system into standby. Avoid using a mains outlet switch to turn your ampliers o.

5.5 Standby power settings

The NAC 332 has three power levels: standby, standby with instant on and powered for normal use. ‘Standby’ mode has an overall power consumption of less than 0.5W. The NAC 332 can be woken up by pressing the standby button or from the remote control. ‘Standby with instant on’ leaves the NAC 332 fully powered, but with the logo turned o. ‘Powered for normal use’ In this mode the NAC 332 uses about 20W. By default, the NAC 332 rear panel switch is set to ‘auto standby’ - it automatically enters standby mode after a period not exceeding 20 minutes of inactivity. For the optimum sound quality set the switch to the “instant on” position. This will keep the NAC 332 permanently powered up. With the switch in this position, if the standby button is pressed, the NAC 332 will remain powered up, but the logo will turn o.

5.6 Naim logo brightness settings

You can choose the brightness level of the LED indicators and Naim logo on your NAC 332 using the brightness buttons on the rear panel and the remote control. If you are using Naim NAC 332 and NAP 350 ampliers connected via System Automation the brightness of all logos will be synchronised.1111

5.7 Using the NPX 300 power supply

The NPX 300 power supply is an optional system upgrade. If adding the NPX 300 power supply to the NAC 332, rst turn the whole system o. Remove the mains cable from the NAC 332 – it is not required when the unit is powered by the NPX 300. Add the NPX 300 to the equipment stand and remove the two link plugs from the NAC 332 rear panel. Connect the un-banded end of the two Burndy cables to the NPX 300. Connect the two banded ends to the NAC 332. Ensure all the locking rings are tightened fully. Try to “dress” the cables so they hang as loosely as possible and without touching the stands or the wall – this will be easier if they are formed to roughly the required shape before connecting either end. Connect the power lead to the NPX 300’s power socket and then to mains power. Turn the rest of the system back on. Turn the NAC 332 back on by pressing the standby button.

6. Mains power, earthing and more

Use only the mains leads and plugs supplied with your NAC 332, or the upgrade Naim Power-Line mains cable. Where fused plugs are used, 13-Amp fuses should be tted. Do not wire voltage dependent resistors or noise suppressors into mains plugs; they degrade the mains supply and the sound.

In order to avoid hum loops, the signal ground of the whole system should be connected to the mains earth in one place. Typically, this is at the primary source. The NAC 332 preamplifer has a ground lift switch. Set this to “Default” if the primary source connects mains earth to signal ground. If no source connects mains earth to signal ground set it to the “Ground” position.

6.2 Non-rewirable mains plugs

If a non-rewirable plug is cut from a mains lead (for whatever purpose) the plug MUST be disposed of in a way to render it totally useless. Considerable shock hazard exists if the cut-o plug is inserted into a mains outlet.

6.3 Mains circuits and interference

A hi- system usually shares a mains power circuit with other household equipment, some of which can cause distortion that may manifest as mechanical hum from mains transformers, including the large transformer in your NAC 332. Transformer hum is not transmitted through the speakers and has no eect on the performance of the system; however, careful positioning of your Naim system may reduce it, as may a separate, dedicated mains circuit. Such a circuit (ideally with a 30 or 45-Amp rating) will also generally improve system performance. Only seek advice on the installation of a separate mains circuit from a qualied electrician.

6.4 Lightning precautions

Your Naim system should be turned o and fully disconnected from mains power when there is a risk of a lightning strike, to protect from potential damage.1212

7. Further tips and advice

Now you have all the essentials sorted, let us move onto a few more things that you can do to optimise the performance of your new NAC 332.

Naim products are hand-crafted from a carefully selected range of high-quality components. Your NAC 332 will sound superb out of the box, but its performance may improve further still as all these various components power up and interact in their rst few weeks of use. Keeping your system powered up will assist this process.

7.2 Cleaning your product and connections

Naim recommends using only the supplied cleaning cloth to lightly dust any product surfaces. Cleaning products may contain ingredients that can adversely aect cosmetic surface treatments and coatings. Keep interconnect plugs and sockets clean and free from corrosion. The easiest way to achieve this is to fully power o your Naim product (and any connected equipment), unplug all connections from their sockets and rmly push them in again. Contact cleaners and so-called ‘enhancers’ should not be used, as they can leave deposits that can degrade the sound of your system.

7.3 Resetting your NAC 332

To reset your NAC 332 to the factory default settings press and hold the “Brightness/ Reset” button on the rear panel for at least 3 seconds. The NAC 332 with return to a standby state and all settings will be returned to the factory defaults. Note that this will include unpairing the remote control and Zigbee System Automation device.

In the event of any non-compliant equipment, it must be sent to the dealer, in its original packaging, who will analyse it and determine where the breakdown comes from. If the equipment is under warranty and conditions are met, the equipment will be repaired or replaced according to the conditions applicable to the legal warranty on the date of purchase of the device. Otherwise, a repair estimate will be submitted. The legal guarantee does not cover damage from a misuse or a wrong connection (burnt mobile coils for instance). Naim equipment is covered by a warranty whose conditions are locally set or carried out by the ocial Naim dealer of each country, in compliance with the laws of the concerned territory. In France, every Naim equipment is covered by a two-year legal guarantee from the date of purchase. A defect can be caused by a failure of the system or by the installation, contact your dealer. Online support resources are also available on our website, please visit www.naimaudio.com If you are still unable to resolve your issue, or have any questions, please contact support@naimaudio.com

9. Service and updates

Any repairs or hardware updates should only be made by an authorised Naim service centre or at the Naim HQ itself. Many components are custom made, tested or matched and appropriate replacements are often unobtainable from other sources. Please contact your local Naim retailer with any service or repair queries.1313

This marking indicates that within the EU this product should not be disposed of with other household wastes. To prevent any risk to the environment or human health, please recycle them responsibly to encourage the reuse of material resources. To return your used device, please use the return and collection systems available, or contact the retailer where you purchased the product. They can recycle this product safely.1414

WARNING: Disconnect power before opening

WARNING: Disconnect power before opening

WARNING: Disconnect power before opening

WARNING: Disconnect power before opening

WARNING: Disconnect power before opening

WARNING: Disconnect power before opening

WARNING: Disconnect power before opening

WARNING: Disconnect power before opening

WARNING: Disconnect power before opening

WARNING: Disconnect power before opening

WARNING: Disconnect power before opening

WARNING: Disconnect power before opening

WARNING: Disconnect power before opening

WARNING: Disconnect power before opening

WARNING: Disconnect power before opening

WARNING: Disconnect power before opening

WARNING: Disconnect power before opening

WARNING: Disconnect power before opening

WARNING: Disconnect power before opening

WARNING: Disconnect power before opening

WARNING: Disconnect power before opening

WARNING: Disconnect power before opening

NAC332 Standby with instant on NAC 332 Powered for normal use

support@naimaudio.com

WARNING: Disconnect power before opening

WARNING: Disconnect power before opening

Naimaudio.comNaim support@Naim naimaudio.com