O W N E R S M A N U A L Pow er Amplifiers
page 1 1.0 Equipment Installation 1.1 cables and connections 2 2.0 Getting Started 2.1 2.2 2.3 2.4 2.5 switching on and off running in mains supply siting the equipment if you have a problem 3 3.0 Warnings 4 4.0 Connection 4.1 mains lead 4.2 non-rewireable mains plugs 4.3 fuse carrier 4.4 plug fuses 1.
2.0 Getting Started 2.1 switching on and off Source components and power supplies for cd players, tuners, preamplifiers and crossovers should be switched on before switching on the amplifier(s). Always switch the amplifier(s) off and wait about a minute for its power supply capacitors to discharge before connecting or disconnecting any leads. Always use the power switch on the product rather than a mains outlet switch. 2.
3.0 Warnings Naim equipment is designed to offer the finest sound quality that can be achieved, avoiding compromise wherever possible. This can lead to circumstances that may be unfamiliar. The material that follows contains advice specifically related to Naim equipment as well as more general warnings about the use of domestic audio products. Please read it carefully.
4.0 Connection 4.1 mains lead As the colours of the wires in the mains lead of this apparatus may not correspond with the coloured markings identifying the terminals in your plug proceed as follows: The wire which is coloured GREEN-AND-YELLOW must be connected to the terminal in the plug which is marked by the letter E or by the safety earth symbol or coloured green or green-and-yellow.
nap 500 power amplifier connections The negative input and output connections are all common. The mains earth (ground) should always be connected regardless of what other equipment is used in conjunction with Naim power amplifiers. This only grounds the case and the electrostatic screen within the transformer, and is not connected to the signal negative. In order to avoid hum loops, the signal negative of the whole system should be connected to the mains earth (ground) in one place.
nap 500 rear, connection to na ps500 + - - + 2 1 to preamp power supply. left, ch1 right loudspeaker ch2 left loudspeaker ch1 to preamp power supply.
nap 135 mono power amplifier connections The negative input and output connections are all common. The mains earth (ground) should always be connected regardless of what other equipment is used in conjunction with Naim power amplifiers. This only grounds the case and the electrostatic screen within the transformer, and is not connected to the signal negative. In order to avoid hum loops, the signal negative of the whole system should be connected to the mains earth (ground) in ONE place.
nap 135 rear, channel one - left - 1 + 2 fan mains input left loudspeaker ch1 to power supply Socket 1 ch1 -ve nc nap 135 rear, channel two - right - 1 + 2 fan mains input to power supply right loudspeaker ch2 Socket 2 nc -ve ch2 Specifications nap 135 Power output Continuous, 8 ohms Transient Voltage gain Input impedance Frequency response Mains supply Case size (H x W x D) 8 75 watts 500VA +29dB 18 kilohms -3dB @ 3Hz & 50kHz 100V. 115V.
nap 140, 150, 180, 250 power amplifiers connections The negative input and output connections are all common. The mains earth (ground) should always be connected regardless of what other equipment is used in conjunction with Naim power amplifiers. This only grounds the case and the electrostatic screen within the transformer, and is not connected to the signal negative. In order to avoid hum loops, the signal negative of the whole system should be connected to the mains earth (ground) in ONE place.
nap 250 rear + - - + left loudspeaker ch1 to power supply right loudspeaker ch2 mains input nap 250 Specifications ch1 nap 250 -ve ch2 Power output Continuous, 8 ohms Transient Voltage gain Input impedance Frequency response Mains supply Case size (H x W x D) 70 watts per channel 400VA +29dB 18 kilohms -3dB @ 3Hz & 50kHz 100V. 115V.
nap 150 rear + - - + left loudspeaker ch1 power to preamplifier or power supply right loudspeaker ch2 mains input nap 150 Specifications ch 2 -ve ch1 +ve nap 150 Power output Continuous, 8 ohms Transient Voltage gain Input impedance Frequency response Mains supply Case size (H x W x D) 50 watts per channel 250VA +29dB 18 kilohms -3dB @ 3Hz & 50kHz 100V. 115V.
EC Declaration of Conformity to Appropriate Standards Manufacturer Naim Audio Limited Southampton Road Salisbury England SP1 2LN Products nap 500, 135, 250, 180, 150 and 140 power amplifiers Safety HD 195-S6 EN 60 065 EMC Emissions Tested to EN 55013 Sound and television broadcast receivers and associated equiment Immunity Tested to EN55020 Electromagnetic immunity of broadcast receivers and associated equipment In accordance with CISPR 16-1 Radio disturbance and immunity measuring apparatus CISPR 16-2
