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The microphone amplifier is arguably the most important part of
the audio chain, yet it is here that solid state technology is weakest
in most mixing desks.
The Earlybird 2 has been developed to be simply the best mic amp
you can buy. Because of the special balanced push pull double triode
circuit, it is virtually silent and distortion free, and has a very
open, clean yet warm sound. The extended frequency response and
lack of phase shift make it ideal for classical or rock recording.
The Earlybird 2
has a simple yet very effective eq for top, mid and bass in the feedback circuit
(switchable). The high pass filter has been designed so that it works conventionally
at lower settings, but on the 2 highest settings is gentler, and provides
a mid cut when used in conjunction with the active bass lift.
The Earlybird 2
does not have to sit idly by on a mix! A separate line in socket is provided
so that it becomes a valve eq and can produce a wonderfully warm distortion
if required. The Output Trim control is placed after the electronics (as
on The Phoenix
) and if turned back to a low setting, The Earlybird 2 can be overdriven
by increasing the Gain setting.
the Earlybird 2 Specifications:
Figures for distortion, noise, phase shift and eq 44dB mic gain, 0dB line gain.
Input Impedance:
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300 or 1200 ohms, switchable , balanced.
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Output Impedance:
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A) output level control at max: 55 ohms balanced
B) output level control at min: 500 ohms balanced
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Maximum Gain:
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60dB
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Maximum Output Level (MOL)
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+31dBv (28V RMS)
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Phase Shift at 10kHz
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20 degrees (5.6%)
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Distortion (THD), 1kHz/100Hz |
0.007%/0.010% |
Frequency response +/-0.1
dB
+/--1 dB |
35Hz to 20kHz
13Hz to 71kHz |
Signal to Noise (weighted)
Ch.1
Ch.2 |
115 dB
112 dB |
Eq, dB each active control
at max:
Bass
Mid
Top
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+16dB @60 Hz
+14dB @ 2.8kHz
+21dB @ 9 kHz
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Gain settings, mic (line
in brackets) dB |
20(-24), 28(-16), 36(-8), 44(0), 52(8), 60(16) |
High Pass Filter, Hz |
0, 30, 70, 150, 400, 800 |
Output trim |
-16 dB to 0 dB linear reverse attenuator |
Input and output connectors |
6 x 3pin XLRs, wired balanced. |
Valve complement |
2 x 7025/12AX7LPS + 3 x 12AU7/ECC82 |

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