Input Type Switch [F7]
The Input type [F7] switch configures the front-end of
Camden EC2’s preamp to create the best possible
environment for mic, line, and hi-z sources. Each switch
position determines the input impedance, active input
connector, and pad status of the preamp for each input
type setting.
Mic - Switches Camden EC2’s input impedance to
8.9kOhms (48v Off, 5.4kOhms 48v ON). Mic input
type has a maximum input level of +17.6dBu.
Line - Switches Camden EC2’s input impedance to
23.4kOhms and engages the -8dB pad. The line
mode has a maximum input level of +26.5dBu.
Hi-Z - Switches Camden EC2’s input impedance to
1.5MOhms (unbalanced, 3MOhms balanced). The
Hi-Z mode has a maximum input level of +24dBu.
Gain Control [F6]
The Gain control [F6] is used to adjust the input sensitivity
of the preamp to boost incoming signals to optimum
operating level and achieve the best signal-to-noise ratio.
The gain control is a 12-position, stepped-switch that
adjusts the input sensitivity in steps of 5.5dB.
Mic Mode Gain Range
Position
Min
2
3
4
5
6
7
8
9
10
11
Max
Gain (dB)
8
13.5
19
24
30
35.5
41
46.5
52
57.5
63
68.5
Line Mode Gain Range
In line mode, Camden EC2 engages an 8dB pad to enable a maximum input level of
+26.5dBu and a gain range of 0dB to 60.5dB in 5.5dB steps.
Position
Min
2
3
4
5
6
7
8
9
10
11
Max
Gain (dB)
0
5.5
11
16.5
22
35.5
33
38.5
44
49.5
55
60.5
Hi-Z Mode Gain Range
Position
Min
2
3
4
5
6
7
8
9
10
11
Max
Gain (dB)
0
5.5
11
16.5
22
35.5
33
38.5
44
49.5
55
60.5
Camden EC2 User Manual
-Page 17-
©2020 Cranborne Audio Ltd
