Arcam A60 - Manual (Page 7)

NOTE; that each of the treble, bass and balance controls has a “click stop” in the dead centre
(12 o’clock) position, to enable a flat frequency response and even channel balance to be set
accurately and repeatably.
Treble control
The treble control progressively cuts treble signals when turned anti-cldckwise and boosts them
when turned clockwise. A “flat” frequency response is obtained when the control is set
accurately to the 12 o’clock position. It is unusual to have to use this control at its extremes, i.e.
outside the 9 o’clock or the 3 o’clock positions.
Bass control
The bass control progressively cuts bass signals when turned anti-clockwise and boosts them
when turned clockwise. Again, the flattest response is obtained at the 12 o’clock position. The
bass control in the A60+ amplifier has been designed to operate at frequencies about an octave
lower than normally encountered in other amplifiers. Because of this, a significant amount of
boost or cut may be employed to compensate for loudspeaker deficiencies without affecting the
lower middle frequencies.
Balance control
The balance control is used to move the stereo sound image to the left or right. It can be used
to compensate for imbalances in room acoustics or input signals.
Headphones socket
The headphones socket accepts any headphones fitted with a standard
Vi
inch stereo jack plug.
The headphones may mute the loudspeakers, or not, as required (see page 2).