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SRM 10A/12A/15A
Quick Start Guide
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Operation
Installation
When choosing a suitable location for the monitors, bear in mind that
the physical mounting of loudspeakers can have a large influence
on performance. For best results, the monitors should be mounted
on a rigid structure, supported on pads making contact with the
laminated panel. Self-adhesive foam pads are provided with the
loudspeakers for that purpose. If you intend to arrange the monitors
in landscape format, detach the whole pad from the backing paper
and stick it on the large side to become the bottom of the cabinet; for
portrait arrangement the pad is pre-cut so that one half can be easily
detached to match the smaller size of the bottom panel.
We recommend positioning of the monitors so that the drive units are
toed inwards, with their axes oriented towards the listening position.
The distance between the two speakers should be 2 to 3 metres,
depending on the monitoring position. The distance between the
monitoring position and each speaker should be slightly greater than
the distance between the speakers. If the speakers are placed too
close to each other, the full stereo image may not develop. On the
other hand, if you place them too far apart you will notice a hole in
the middle of the stereo image.
Ensure that the console position does not obscure the direct sound
radiation from the Dual Concentric drive unit when sitting down. The
engineer and producer should have a clear, uninterrupted view of the
monitor loudspeakers.
Connect the audio signal source (console or interface output) to one
of the input connectors on the rear of the speaker. Connections can be
made via unbalanced RCA cable, but balanced ¼" TRS or XLR cables
are recommended.
The ¼"/XLR combo jack is wired as shown:
Having chosen an appropriate location for your monitors and
arranged them accordingly, connect the power cord to the mains
socket and turn the power on. The PWR LED on the rear panel should
now be illuminated.
XLR Input
1/4
" TRS Input
Signal (+)
Pin 2
Tip (T)
Signal (-)
Pin 3
Ring (R)
Ground
Pin 1
Screen (S)
Adjustment
With the LEVEL knob set at the center (12:00) position, slowly raise
the output from your console or interface while audio is playing. The
green SIG LED should light up whenever audio enters the speakers
INPUTS. If the red LIM LED ever lights, reduce the output of your
source audio. If more volume is needed, raise the LEVEL knob to an
appropriate setting.
Each loudspeaker model features two controls labeled Treble Energy
and Treble Roll-Off, and the SRM 15A has an additional control called
Presence Energy. These allow the high frequency response to be
tailored to your listening environment.
To make adjustments, each speaker should be operated one at a time
in mono. Pan the output from your source audio so that the full signal
passes only to the left or right speaker. The Treble Energy control
increases or decreases the HF driver over its entire frequency range
from 1 kHz to 20 kHz, while the Treble Roll-Off only affects the highest
frequencies above 5 kHz. Presence Energy boosts or cuts frequencies
between 1 and 5 kHz.
All controls should be set to the ‘Level’ position initially. If the
sound is too bright or dull, the Treble Energy can be used for broad
adjustments. After this setting has been established, further fine
tuning with the Treble Energy (and Presence Energy for the SRM 15A)
can be made as necessary. Changes to each control can be fairly subtle
and may not be heard at all if the audio being monitored has little
energy in the spectrum being adjusted. Keep in mind that speaker
positioning and room acoustics also affect a speaker’s response.
Summary of Contents for SRM 10A
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