Safety compliance

This product has been designed to meet the IEC 60065 international electrical safety standard.

Using this handbook

This handbook has been designed to give you all the information you need to install, connect, set up and use the Arcam A90 integrated amplifier or the P90 power amplifier. The A90 amplifier is described first, then the P90. The CR-389 remote control handset supplied with the A90 integrated amplifier is also described. Your amplifier(s) may have been installed and set up by an authorised Arcam dealer. In this case, you may wish to go directly to the sections describing the use of this equipment.

Contents

Safety guidelines.. 2 Important safety instructions..2 Safety compliance...2 Using this handbook.. 3 Safety...3 Installation: A90 integrated amplifier. 4 Positioning the unit..4 Connecting to loudspeakers..4 Connecting to a power supply.4 Connecting to other equipment..5 Using your A90 integrated amplifier.. 6 Front panel controls...6 Recording...7 Setting up your A90 integrated amplifier. 8 Using the remote control.. 9 CR-389 Remote Control..9 Installation: P90 power amplifer..10 Connecting to power, loudspeakers and other equipment...10 Remote switching..10 Three channel option..10 Using your P90 power amplifier..11 Bi-wiring and bi-amping loudspeakers.12 Before you start..12 Bi-wiring your loudspeakers..12 Bi-amping your system..12 Remote-control codes..13 Service information..14 Technical specifications..14 Guarantee..15 On-line registration..15

Safety

Safety guidelines are set out on the inside front cover of this handbook. Many of these items are common sense precautions, but for your own safety, and to ensure that you do not damage the unit, we strongly recommend that you read them.

A90/P90 3

Installation: A90 integrated amplifier

TRIG OUT

VOLTAGE SELECT

INTEGRATED

PWR IN PRE OUT PRE/PWR RECORD PLAY OUT IN TAPE 1 RECORD OUT PLAY IN VCR/TAPE 2 DVD AV TUNER CD AUX

POWER INLET

REMOTE IN

bk bl bm bn bo bp bq br

Positioning the unit
Place your amplifier on a level, firm surface. Avoid placing the unit in direct sunlight or near sources of heat or damp. Ensure adequate ventilation. Do not place the unit in an enclosed space such as a bookcase or cabinet as both of these will impede air flow through the ventilation slots.

Arcam A90 amplifier

+ Right speaker

Left speaker

Connecting to loudspeakers
The red and black terminals on the back of the amplifiers are used to make the connections to the loudspeakers. You can connect one or two pairs of loudspeakers to your amplifier, provided each pair is rated between 816. (If one or both pairs have an impedance of less than 8, the combined load on the amplifier falls below 4 and could cause an overload.) The pair designated speaker 1 (SP1) are connected to the lower set of terminals, while the pair designated speaker 2 (SP2) are connected to the upper set of terminals. To connect one pair of loudspeakers, use the SP1 terminals. When connecting the speaker terminals of the amplifier with the terminals on the speakers, make sure that like polarities are matched (i.e., match + with + (usually red) and with (usually black)). Mismatching of polarities will result in a weak central sound, unclear orientation of the instruments and the sense of direction of the stereo being impaired. There are two options for connecting the speaker cable to the amplifier:

Wiring your loudspeakers

Using spade terminals:
1. 2. 3. Loosen the terminal by turning it anti-clockwise Insert the spade connecter under the terminal. Tighten by turning clockwise.
Connecting to a power supply

Wrong plug?

Check that the plug supplied with the unit fits your supply and that your mains supply voltage agrees with the voltage setting (115V or 230V) indicated on the rear panel of the unit before plugging in.
If your mains supply voltage or mains plug is different, consult your Arcam dealer or Arcam Customer Support on +44 (0)1223 203200. The product must be earthed.

Mains lead

The appliance is normally supplied with a moulded mains plug already fitted to the lead. If for any reason the plug needs to be removed, it must be disposed of immediately and securely, as it is a potential shock hazard when inserted into the mains socket. Should you require a new mains lead, contact your Arcam dealer.
Using bare wire ended leads:
Strip back the insulation on the wire to reveal about 2cm of conductor (the metal inside the cable). 2. If the conductor is stranded, twist the strands together tightly to avoid loose strands making contact with the adjacent terminals or the back panel. 3. Loosen the terminal by turning it anti-clockwise 4. Insert the twisted wire through the hole in the terminal. 5. Tighten by turning clockwise. When making connections with stranded bare ended wires, take great care that no individual strands of wire come into contact with the adjacent terminals or with the back panel. If this should happen, it will cause a short circuit on the output of the amplifier and could damage the amplifier. A90/P1.

Plugging in

Push the plug (IEC line socket) of the power cable supplied with the unit into the socket (POWER INLET) in the back of the unit. Make sure it is pushed in firmly.
Put the plug on the other end of the cable into your power supply socket and switch the socket on.

Standby power

For remote standby operation, the amplifiers control power supply is kept powered up all the time the unit is connected to the mains supply. The front panel power switch powers down all other circuitry. Power consumption in this mode is less than 2W. This means that even though the power switch is off, it may be possible to hear a slight residual hum coming from the mains transformer inside the amplifier. This is perfectly normal. If the unit is to be left unused for an extended period, we recommend that it is disconnected from the mains supply by switching it off at the wall socket.
TRIG OUT AND REMOTE IN (12V in and out) These connections are intended for use in multi-room installations. unit is switched on (i.e., not off or in standby). This signal can be used to switch on automatically power amplifiers (or other equipment) connected to the A90, as they will come on when the A90 is activated. This is useful if the power amplifier is remote from the A90, or otherwise difficult to access. REMOTE IN This allows remote control signals to be received by the A90 if the remote sensor is covered (or otherwise not visible to the remote control). An external sensor is used to receive the signals from the remote control, which are then fed to the A90 (into this input) using a suitable cable. Remote control signals acceptable to the A90 must be in modulated RC5 format, with a voltage level of between 5V and 15V. Note that in normal use there is no need to make any connections to these sockets. If you would like to make use of these features, please contact your dealer for more advice on how to make the connections and on what type of cable to use. English

TRIG OUT This output provides a 12V signal whenever the
Connecting to other equipment
The use of high quality interconnect cables to and from your amplifier is recommended to ensure the best sound quality. Sockets marked L (and R) on your amplifier should only be connected to sockets marked L (and R) on other equipment. All the line inputs have the same sensitivity and may be used with equipment other than that labelled, if needed. TAPE1/RECORD OUT Connect these output sockets to the input sockets of your cassette deck (usually labelled RECORD). TAPE1/PLAY IN Connect these input sockets to the output sockets of your cassette deck (usually labelled PLAY). If you do not have a cassette deck you can use this input for other (line level) equipment, such as a CD player, tuner, VCR, etc., but not a turntable. VCR/TAPE2 RECORD OUT These output sockets can be connected to the input sockets of VCR/second recorder (usually labelled RECORD). VCR/TAPE2 PLAY IN Connect these input sockets to the output sockets of your VCR/second recorder (usually labelled PLAY). Alternatively, you can use this input for other (line level) equipment such as a CD player, tuner, etc., but not a turntable. DVD player.
Pre/power amplifier connections
To use your integrated amplifier as a power amplifier, connect the output of your pre-amplifier to the PWR IN sockets.

PWR IN

Press in the PRE/PWR switch on the rear panel to select separate pre-amp/power amp mode. Under these circumstances your A90 has exactly the same specification and performance as a power amplifier (see page 10). To use your integrated amplifier as a preamplifier, connect the PRE OUT sockets to the input sockets of your power amplifier. With a power amplifier of the correct gain (e.g. the P90 power amplifier) you can bi-amplify (bi-amp) suitable loudspeakers, giving significant improvements in sound quality (see page 12).

PRE OUT

bm Connect this input to the audio outputs of a DVD
AV Connect this input to audiovisual equipment such as a VCR, laserdisc player, satellite or Nicam tuner. TUNER Connect this input to the audio outputs of your radio tuner. CD Connect this input to the audio outputs of your CD player or DAC (digital to analogue converter). AUX Connect this input to the audio outputs of any unit with a line level output, e.g. tape deck, tuner etc. NOTE: The AUX inputs must not be used if the phono module is fitted. When this is fitted AUX becomes an output carrying the equalised phono signal at line level. PHONO As standard, phono inputs are blanked. Phono inputs are provided on a separate plug-in module which your Arcam dealer or distributor can supply and fit. This module is compatible with most high output moving coil and moving magnet cartridges (MM) and low output moving coil cartridges (MC). MM or MC is selected via the MM/MC back panel switch. Phono earth terminal For connecting your turntable earth lead (if fitted). Note that this terminal must not be used as a safety earth.

Source selectors

These buttons select the source connected to the corresponding input. A light above the relevant button indicates which input is currently selected and it will also usually be shown on the display.
This socket accepts headphones with an impedance rating between 8 and 2k, fitted with a 1/4-inch stereo jack plug. If you wish to listen on headphones only, use the SP1 and SP2 buttons (if necessary) to mute the speakers. The headphone socket is always active.
This input is similar to the other line level inputs on the amplifier and may be used with a VCR or a second recording unit (e.g. cassette deck).

Remote control receiver

The remote controls infrared receiver is positioned to the left of the RECORD button. Ensure the receiver is in a clear line of sight from the remote control to allow signals to be received.
Switches the tone circuits on and off, including settings for individual sources. Note that the tone LED does not light unless a tone setting has been made. (see page 8).

MODE, UP and DOWN

Control knob, SELECT and ENTER
The control knob has two functions:
These buttons are mainly for use with future optional modules, however the UP and DOWN buttons are used with the basic A90 amplifier to move the cursor when customising the Welcome message (see page 8).
as a volume control, to adjust the output of loudspeakers

A90/P90 6

and headphones connected to the amplifier, and of the pre-amp output (PRE OUT). when used in conjunction with the SELECT and ENTER buttons, to customise amplifier settings (see page 8).

Recording

English A90/PWith the Arcam A90 it is possible to listen to and record from one source, or to listen to one source while recording another. Both sets of tape sockets are identical in sensitivity and suitable for use with almost any type of recorder (cassette, CDR, MD, VCR, reel-to-reel, etc.). The record signal is sent to both the TAPE and VCR output sockets.

RECORD

To record the currently selected source, press RECORD until the display shows RECORD SOURCE. After a few seconds the display reverts to showing the volume level and you are ready to record. To listen to one source while recording another, press RECORD again until the display shows RECORD followed by the name of an input (e.g. AUX, CD, TUNER, etc.). Now press the source selector button on the front panel for the source you wish to record. Your selection is shown on the display for a few seconds, after which it reverts to showing the volume level and you are ready to record. The RECORD button can also be used as a second zone selector, sending a source signal at line level to a second amplifier operating in another room. If you need help with this, contact your Arcam dealer or Arcam customer support.

Tape-to-tape copying (dubbing)
You can perform tape dubbing from VCR to TAPE, but not from TAPE to VCR. For example, to copy from a cassette recorder connected to the VCR socket to a cassette recorder connected to the TAPE 1 socket, first use the RECORD button as explained above and select RECORD VCR. This routes the VCR signal to the TAPE output. Set the cassette recorder connected to the TAPE socket into its record mode and the other to playback mode to start dubbing.
To play back the recording from a cassette deck attached to the TAPE 1 input, press TAPE. TAPE 1 is shown on the display. Selecting this input overrides the other source selectors. It is also possible to monitor a recording while it is being made, provided your cassette deck is a 3-head type. To do this, press TAPE. Switching this button in/out allows an A/B comparison between the source signal and the recorded signal.
Setting up your A90 integrated amplifier
ARCAM A90 Switch on state

Introduction

The A90 allows you to adjust listening settings to suit your taste, and to customise various features of the amplifier to fit your system. Use this diagram to help you navigate through the settings available. The ENTER and SELECT buttons are represented in the diagram by the symbols and respectively. The Control knob is shown as.
Adjusting listening settings
The default display mode is VOLUME, where the control knob is used to adjust sound level. Press SELECT to enter edit mode and cycle through the other sound settings: BALANCE, BASS and TREBLE. When a setting is selected, adjust it with the control knob. Press ENTER to fix the change you have made and return to default (volume) mode, or press SELECT again to move to the next setting.

UP adjust

VOLUME

BALANCE

adjust
Customising amplifier settings
Press SELECT until the display shows CUSTOMISE->. Now rotate the Control knob to choose which setting you wish to alter. Press SELECT to adjust the chosen setting with the Control knob. Press ENTER to confirm the adjustment or press SELECT to confirm the adjustment and move on to the next item. Press ENTER twice to leave the Customise menu.

+dB adjust

TREBLE

Customize ->

choose setting

Volume Resolution

VOLUME DISPLAY

INPUT TRIMS

TONE CONTROL

Processor mode

WELCOME MESSAGE

PHONO/AUX TEXT

RESTORE SETTINGS

STANDARD FINE REFERENCE

GRAPHIC/ NUMERIC

GLOBAL/ PER SOURCE

ARCAM Amp

AUX/ PHONO

NO/YES

Switch on state

continue Volume resolution Volume display

continue Input trims

continue Tone control

continue

continue Processor mode

continue Welcome message

continue Phono/Aux text Restore settings
Volume Resolution Standard, fine or Reference. Standard and Fine represent different levels of volume control sensitivity. The Reference setting gives absolute increments in 0.5dB steps. Volume display mode graphic or numeric shows the volume either as a bar graph or as a number. If Volume resolution is set to Reference a numeric volume display shows the actual decibel figure. Input Trims use the source select buttons and Control knob to set input trims for each source. Input trims are used to compensate for variations in output levels of different source equipment. A90/P90 8
Tone Control Global or Per source. This specifies the scope of changes for Bass and Treble tone settings. The default setting is Global which affects all inputs equally. Per source allows you to set tone controls for individual inputs: once set, the amplifier remembers tone settings for each input. Processor Mode This mode enables you to adjust the gain of the amplifier. The amplifier can then be used to drive the front left and right speakers in a surround sound system when fed from a separate processor. You can then control the volume of the entire system using the processor, feeding the sound into the TAPE input. Set the gain to match the amplifiers that drive your other loudspeakers.
Welcome message You can change the power on Welcome message from Arcam INTEGRATED AMP to display your name, postcode, etc. When customising the message, use the UP and DOWN buttons to select the cursor position and the Control knob to change the letter. Phono/Aux Text If you have had the optional Phono module added, choose Phono so this word is displayed when the input is selected. The default is Aux. Restore Settings this restores all amplifier settings, including Input trims and the Welcome message, to their factory defaults.

Using the remote control

CR-389 Remote Control
The CR-389 remote control gives access to all functions available on the front panel of the A90. It also has controls to operate Arcam CD players, AM/FM tuners and DAB tuners. The remote control transmits Philips RC-5 type codes. English TUNER
These buttons are used to control tuner functions. Note that the FM/DAB lights indicate into which mode you are switching the remote control. The lights only illuminate for five seconds to conserve battery power. If neither light is illuminated this does not mean that the remote control is not working!

FM DAB

Power/Standby

MENU DISP

(UP and DOWN)
Perform the same function as the buttons on the front panel (see page 6).
Toggles the amplifier between standby mode and full power mode. The power indicator light next to the power button on the front panel is red if the amplifier is in standby, amber while the amplifier is powering up (this only takes a few seconds) and green when the amplifier is powered up.
These buttons allow you to select and deselect the main (SP1) and secondary (SP2) sets of speakers attached to your amplifier (see page 6).
Performs the same function as the ENTER button on the front panel (see page 8).

SELECT

DISP (display)
Cycles through the settings Bright, Off and Dim. Turning the display Off generally gives a slight improvement in sound quality.
Performs same function as the SELECT button on the front panel. It allows you to use the remotes volume switch in the same way you use the control dial on the front panel to adjust various amplifier settings (see page 8). Note that pressing + corresponds to turning the Control knob clockwise, to anticlockwise.

PHONO AUX TUNER CD

Volume and

(mute)

Press + to increase volume or to decrease the output volume of the amplifier. Press to mute the speaker connections and preamp outputs. Both tape outputs and the headphone socket remain active. Mute is disabled either by pressing again, or by adjusting the volume. You can use the remotes volume control in conjunction with the SELECT button to adjust balance, tone and amplifier settings.

Source selection buttons

These operate in the same way as the source selectors on the front panel of your integrated amplifier.

AMPLIFIER

CD controls
These offer basic controls of Arcam CD players

CR-389

NOTE: Remember to install the two supplied AAA batteries before trying to use your remote control! Do not place anything in front of the IR receiver on the left of the A90, or the remote control may not work. A90/P90 9

Installation: P90 power amplifer

+ R/CH1 + L/CH2

AUDIO LINK

+ CTR/CH3

CTR/CH3

TRIG OUT VOLTAGE SELECT

L R SP1

IN OUT

AUDIO IN

+ R/CH1

+ L/CH2
Optional Third Channel Module provides a third 90W channel suitable for Home Cinema or multi-channel audio use.
Connecting to power, loudspeakers and other equipment
Follow the installation instructions for the integrated amplifier on pages 4 and 5.
AUDIO IN Connect this input to the output sockets of your pre-

Remote switching

By making a connection from the REMOTE IN socket of the P90 power amplifier to the TRIG OUT socket of the A90 integrated amplifier, you can use the A90 to switch the power amplifier on and off. If configured in this way, the front panel POWER button of the A90 (or the POWER/STANDBY button on the remote control) switches both amplifiers on and off together. This facility allows you to conceal the power amplifier yet still control it. The connecting cable required is a 3.5mm to 3.5mm jack lead (stereo or mono) and it is possible to connect several power amplifiers to an A90 by daisy chaining from TRIG OUT of one P90 into the REMOTE IN of the next.
amplifier or the PRE OUT sockets of an integrated amplifier.
MONO LINK The power amplifier can be adapted to provide
two mono loudspeaker outputs from a single input. Pull out the link supplied and use it to connect the L and R AUDIO OUT sockets together. Using one power amplifier per loudspeaker will enable you to bi-amplify bi-wireable loudspeakers. This is particularly beneficial for top quality stereo installations with a separate pre-amplifier, or where amplifiers are provided for the left, centre and right channel loudspeakers in a five speaker Dolby Pro Logic or Dolby Digital system. Contact your Arcam dealer for more information. Daisy chaining The power amplifier can be connected to further power amplifiers to drive more speakers (e.g. those in other rooms or tri-amplified speakers, etc). Connect the extra power amplifier inputs to the AUDIO OUT sockets on the power amplifier, left to left, right to right.

Three channel option

The power amplifier can be upgraded from stereo to three channels by adding a Third Channel Module: in this case, the model is designated P90/3. The module offers extra loudspeaker terminals together with a third set of AUDIO IN and OUT phono sockets and converts the P90 into a 3 x 90W (RMS per channel into 8) amplifier suitable for Home Cinema or multi-channel audio use. Contact your Arcam dealer for further details.

A90/P90 10

Using your P90 power amplifier

P90 POWER AMPLIFIER

Switches the unit on and off. The light indicates the status of the amplifier. When you switch your amplifier on, the light glows amber for a few seconds, during which time the speakers are disconnected. The light changes to green when the amplifier is ready for use. A red light means the amplifier is in standby mode. The power light may flash if a fault has occurred, with the colour of the flashing light indicating the nature of the fault:

These buttons allow you to select and deselect the main (SP1) and secondary (SP2) sets of speakers attached to your amplifier. An indicator light shows which set of speakers are currently selected. NOTE: If both lights are out the amplifier will appear not to work, as all speakers are switched off.
green a D.C. offset fault has occured amber a thermal fault has occured (the amplifier is too
red a short circuit fault has occured (this can happen if
the speaker cables are not connected correctly and are making contact with each other or with the chassis) red and amber more than one fault has occured. Except for a thermal fault, if one of the above faults is detected by your amplifier the unit waits for six seconds before checking to see if the fault has cleared. If the fault clears within six seconds, then the unit continues operation; otherwise the unit shuts itself down. In the case of a thermal fault, the unit waits until its sensor temperature lowers before resuming operation. If the amplifier has shut itself down, you should unplug the amplifier and leave it for a few minutes before reconnecting. If the fault cannot be cleared, unplug your amplifier and contact your Arcam dealer.

A90/P90 11

Bi-wiring and bi-amping loudspeakers

Before you start

WARNING: Do not make any connections to your amplifier while it is switched on or connected to the mains supply. Before switching on please check all connections thoroughly, making sure bare wires or cables are not touching the amplifier in the wrong places (which could cause short circuits) and you have connected positive (+) to positive and negative () to negative. Always ensure that the volume control on your amplifier is set to minimum before starting these procedures.

Bi-amping your system

The performance of your system can be further enhanced over that achieved with bi-wiring, by extending the principle one stage further to include separate amplification for the low and high frequency drive units in each loudspeaker enclosure. Connect the integrated amplifier to the high frequency (HF) terminals and connect the power amplifier to the low frequency (LF) terminals.

You will need:

Speakers with four input terminals each (as with bi-wiring): these will be marked HF (High Frequency) and LF (Low Frequency). Two amplifiers one of these would be the A90 and the other an Arcam power amplifier (e.g. P90). Loudspeaker cables two pairs of cables per loudspeaker or a suitably terminated cable set. Interconnect cables one pair of high quality interconnect cables.

Bi-wiring your loudspeakers
Bi-wiring improves the sound of your system because it divides the high and low frequency signal currents into separate speaker cables. This avoids signal distortions arising from the high and low frequency currents interacting with one another within a single cable, as in conventionally wired systems.
How to set up a bi-amped system
1. Remove the terminal links on the rear of your loudspeakers. WARNING: This step is essential or damage to your amplifier may result which is not covered under warranty. 2. 3. Connect the cables as shown in the diagram below, ensuring correct polarity at all times. Use the interconnect cables to connect the PRE OUT sockets of the A90 to the corresponding AUDIO IN sockets of the power amplifier.
Speakers with four input terminals each: these will be marked HF (High Frequency) and LF (Low Frequency). Loudspeaker cables two pairs of cables per loudspeaker (which may be joined at the amplifier end if your amplifier has only one pair of output terminals per channel), or a suitably terminated cable set.
How to bi-wire loudspeakers
1. Remove the terminal links on the rear of your loudspeakers WARNING: This step is essential or damage to your amplifier may result which is not covered under warranty. 2. Connect the cables as shown in the diagram below, ensuring correct polarity at all times.
+ R Arcam A90 amplifier + R + L + Right speaker + + + HF LF Right speaker + + HF LF Left speaker + R HF LF
Arcam P90 power amplifier

+ HF + LF

Left speaker
Bi-wiring using one set of connections on amplifier
Recommended bi-amping configuration

A90/P90 12

Remote-control codes
The following table gives the IR-commands accepted by the A90.

Power commands

Command Power toggle Power-on Power-off Decimal Code 16124
Source selection commands

Command

PHONO select AV select TUNER select DVD select TAPE select VCR select CD select AUX select

Decimal Code 167 168

Volume control commands
Command Mute Volume up Volume down Decimal Code 1617

Menu navigation commands

UP DOWN SELECT ENTER
Decimal Code 16-32 16-1687

Speaker control commands

Command Speaker 1 toggle Speaker 2 toggle Speaker 1 on Speaker 1 off Speaker 2 on Speaker 2 off Decimal Code 1645 1646

Display control commands

Command Display Decimal Code 1659
Note that the A90 also responds to code 2053 (the Play command for an Arcam CD player). The A90 swiches automatically to CD input on receiving this command.

A90/P90 13

Service information
Before returning your amplifier for service, please check the following:
With two pairs of low impedance speakers connected,
overloads are more likely. Overloading the amplifier may cause it to shut down because of overheating. Note that because of the high output voltage from a CD player, it is possible to drive the A90 at full power even though the volume is not set at maximum.
Sound cuts out for no reason
If the temperature of the internal heatsink rises above a safe level, then a thermal cutout inside the amplifier will operate. The power indicator on the front panel flashes and the protection system temporarily removes the power to the speakers. The system resets itself as the heatsink cools down.
Amplifier does not switch back on
The A90 and P90 amplifiers have a protection mechanism which is activated if you switch the unit on immediately after turning it off. If this mechanism activates, wait 30 seconds then try again.

Technical specifications

A90 Continuous power output, per channel Both channels, 8, 20Hz20kHz Single channel, 4, 1kHz Distortion, 8, 80% power, 1kHz Inputs Phono cartridge (optional module) input sensitivity, MM input sensitivity, MC Line and tape inputs Nominal sensitivity Input impedance Signal/noise ratio (CCIR) Tone controls, max. boost/cut Preamplifier outputs Nominal output level Output impedance General Power consumption (maximum) Dimensions W x D x H (including feet) Weight (net) Weight (packed) Supplied accessories 800VA 435 x 340 x 100mm 9kg 10.5kg mains lead CR-389 remote control 2 x AAA batteries 800VA (950VA for P90/3) 435 x 320 x 100mm 9.5kg (10.5kg for P90/3) 11kg (12kg for P90/3) mains lead 700mV <50 250mV 22k 105dB 12dB 700mV 22k 112dB 2.5mV 250V 90W 150W 0.005% 90W 150W 0.005% P90

E&OE

Continual improvement policy
A90/PArcam has a policy of continual improvement for its products. This means that designs and specifications are subject to change without notice.