A28 Handbook Manuel Integrated amplifier Amplificateur intégré Handbuch Integrierter Verstärker Handleiding ������� ������ ���� ������� Geïntegreerde versterker ������������������������ �� ���� ����� ��� �� ����� ��� ��� �� ��� ��� ������ �����
safety guidelines 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. Class I product This equipment is a Class I electrical appliance. It requires safety connection to electrical earth (‘ground’ in the U.S.).
safety guidelines........................................E-2 Important safety instructions..............................E-2 Safety compliance...................................................E-2 welcome.......................................................E-3 overview......................................................E-4 Placing the unit . ......................................................E-5 Power............................................................................E-5 Interconnect cables..
Arcam’s A28 Integrated Amplifier provides class-leading sound quality. overview The CR90 remote control supplied with the A28 is an eight-page ‘universal’ learning remote control which is simple to use, and once set up is able to control a complete system. It can be programmed using its vast internal code library to control CD players, tuners, TVs and other devices.
< < < < < < Place the amplifier on a level, firm surface, avoiding direct sunlight and sources of heat or damp. Do not place the A28 on top of a power amplifier or other source of heat. Do not place the amplifier in an enclosed space such as a bookcase or closed cabinet unless there is good provision for ventilation. The A28 is designed to run warm during normal operation.
NOTE The Trig out and Remote in functions are only used in multi-room systems. They are not required for normal use. A28 connections Speaker terminals The A28 is equipped with two sets of speaker terminals. See page 8 for information on connecting loudspeakers. ��� ���������������� Power inlet ������� ������ Connect the correct mains cable here.
Recording loop Audio inputs Phono input PRE OUT The A28 is equipped with a recording loop, for use with recording devices (such as a CD recorder, DAT recorder, cassette recorder, VCR, PVR etc.). Although the inputs are labelled for specific devices, all have the same characteristics and each may be used with any line-level product. The exception is the Phono input (see page 14 for the specification).
Connecting loudspeakers to the A28 loudspeakers Single wiring Notes on making speaker connections Single wiring is the conventional wiring method of running a single cable per channel between the amplifier and the speaker; this is the easiest technique. < Bi-wiring Bi-wiring is running two separate cables between the amplifier and each speaker, with one cable carrying the low-frequency information, the other the higherfrequency signals.
The A28 is designed for bi-wiring, which is why there are duplicate speaker terminals on the back. For single wiring, we recommend that you use the lower set of speaker terminals on your amplifier. If each speaker has more than one pair of connecting terminals, use the terminals labelled LF or ‘Low Frequency’ for each speaker. ��������� � Connect the positive terminal of the right speaker connection on the amplifier (coloured red and labelled +R) to the positive terminal of your right speaker.
������� ������ a v -ph �� 20 ������������������������ operation ���� ������� ���� ����� ��� �� ����� ��� ��� �� ��� ��� ������ ����� Switching the A28 on Changing the volume Selecting an audio source Recording an audio source The power button switches the unit on and off; alternatively, the unit can be switched in and out of stand-by mode by pressing the 2 button on the remote control handset. Use the control knob to change the volume.
A28 setup Adjusting listening settings The A28 allows you to customise various features of the amplifier to fit your system. Use this diagram to help you navigate through the available configuration options. In the diagram, the control knob is shown as . you have found the setting that you wish to adjust (as shown on the front panel display), press OK. To adjust the chosen setting, use the control knob.
The CR90 Universal remote controller remote control Source keys The CR90 is a sophisticated ‘universal’ remote control that can control up to eight devices. It’s pre-programmed for use with the A28 and many other Arcam products (FM/DAB tuners, CD players and DVD players). With its extensive built-in library of codes, it can also be used with thousands of other audio-visual components – TVs, satellite and set-top boxes, PVRs and third-party CD players.
� � � 2 � � � 1–9 � � � ��� �� ����� ������ ����� � ����� ����� ��� ��� ��� ��� ��� �� ��� ��� ��� �� Shift BC D E OK Menu ���� ���� Disp ���� ���� - �� ������ ���� ������ ���� – /+ Amp commands English ��� Power – Switches A28 between stand-by and on Some number keys can be used for source selection: 1 DVD input 2 CD input 3 AV-PH FX 4 AUX Auxiliary line input 5 Not used on A28 6 SAT Satellite decoder input 7 TUN DAB/FM/AM tuner input 8 Phono input 9 Not used on A28
specifications Continuous power output (20Hz—20kHz at 0.5% THD), per channel Both channels, 8Ω, 20Hz—20kHz Single channel, 4Ω, at 1kHz Harmonic distortion, 80% power, 8Ω at 1kHz Inputs Phono cartridge: Input sensitivity at 1kHz Input impedance Signal/noise ratio (CCIR, 65W) Overload margin Line and AV inputs: Nominal sensitivity Input impedance Signal/noise ratio (CCIR, 65W) Continual improvement policy 75W 130W 0.004% 2.5–15mV (user adjustable) 47kΩ 88dB 31dB 250mV–1.
Remote-control codes If you are having trouble with your amplifier, check the following items. The following tables give the IR commands accepted by the A28. No sound Note that the A28 also responds to code 20–53 (the Play command for an Arcam CD player). The A28 switches automatically to CD input on receiving this command. Check the following: < The A28 amplifier is switched on. < The amplifier is not muted (i.e Mute is not shown on the front-panel). < The selected source is generating audio (e.g.
Worldwide Guarantee product guarantee This entitles you to have the unit repaired free of charge, during the first two years after purchase, at any authorised Arcam distributor provided that it was originally purchased from an authorised Arcam dealer or distributor.
SH209 Issue 1 A&R Cambridge Ltd, Pembroke Avenue, Waterbeach, CAMBRIDGE CB25 9QR, England
