Hill Audio Andante SMA-1020 User Manual Download Page 7

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CH2 RCA Audio Input. This is a pair of RCA sockets to connect regular stereo audio equip-
ment. Note that this input is disabled when a connector is inserted into the CH2 TRS audio
input (11). Also note that depending on the link mode switch (14), the stereo channels are
either summed up to a mono signal and played by the internal speaker, or the left channel of
the source is played by the internal speaker and the right channel of the source is sent out via
the Link connector (16).

CH3 TRS Audio input. This is a pair of ¼’’ TRS sockets, providing a balanced stereo input. The
right channel socket is a switching type; as long as no connector is inserted into the right chan-
nel, the right channel will automatically carry the left channel signal. If the signal connected to
this input is a mono signal, hence always insert this into the left channel socket. Note that
depending on the link mode switch (14), the stereo channels are either summed up to a mono
signal and played by the internal speaker, or the left channel of the source is played by the
internal speaker and the right channel of the source is sent out via the Link connector (16).

Link Mode switch. Depending on the setting of this switch, the signal presented on the Link
output (16) can either be the same as the mono sum of the internal channels, so that the
further speaker connected to the Link output (16) will carry the exact same signal; or it can
be set to carry the complementary stereo channel so that an external speaker connected to
the Link output (16) carries the right stereo channel while the internal speaker carries the left
stereo channel.

Link Frequency Range switch. Depending on the setting of this switch, the link output (16) may
either carry the same frequency range as the internal speaker or only the range up to 120Hz,
which would allow a subwoofer to be connected to the Link output without the need of an active
crossover.

Link output connector. This is a male XLR connector to supply a line-level balanced audio signal
to further Andante series speakers. Note that the signal carried by this output depends on the
settings of the Link Mode switch (14) and the Link Frequency Ranges switch (15), and refer to
the explanations provided there.

Thru output connector. Other than the Link Output (16), this male XLR connector supplies a
balanced signal exactly identical to the input signal connector to CH1. The main purpose is to
allow daisy-chaining of a number of Andante speakers, with every speaker receiving the same,
unprocessed signal.

Master Equalizer. This is a 2-band EQ, providing frequency response shaping to the mix of
channels 1/2/3.

Master Contour on/off switch. This switch determines whether a frequency response
contour filter is applied to the master signal or whether the master signal frequency response
stays flat. Once enabled, the choice of which contour filter is applied is made by the
Music/Speech Contour switch (20).

Music/Speech Contour switch. Once the master contour switch (19) is enabled, this switch
determines whether either a speech-adapted frequency contour filter (+8 dB 2khz-6kHz) or a
music “loudness” contour filter (+9 dB @ 55Hz / +4 dB @ 22.5kHz) is applied. The Speech
filter setting improves speech intelligibility but is less applicable to music replay, while the
Music filter setting is specifically designed for low-volume music replay where natural percep-
tion of low and high frequency presence is reduced. The music filter is not suitable for playing
music at medium or high levels; in such case all contour filters shall be disabled by means of
the master contour on/off switch (19).