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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:

300 or 1200 ohms, switchable , balanced.

Output Impedance:

A) output level control at max: 55 ohms balanced
B) output level control at min: 500 ohms balanced

Maximum Gain:

60dB

Maximum Output Level (MOL)

+31dBv (28V RMS)

Phase Shift at 10kHz

20 degrees (5.6%)

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


+16dB @60 Hz
+14dB @ 2.8kHz
+21dB @ 9 kHz

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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thermionic culture Global Distribution by Unity Audio Ltd:
T: +44 (0) 1440 785843.  F: + 44 (0) 1440 785845.  E: sales@unityaudio.co.uk
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