Warm Audio WA273-EQ dual-channel microphone preamp and equalizer is designed to provide up to 80 dB of gain and 3-band EQ for engineers, producers, musicians, and vocalists in mobile-recording rigs and home, project, and commercial studios. It features custom Carnhill transformers and is wired and assembled by hand to deliver the sound and functionality of classic British ’73-style preamps.
Its inputs include balanced XLR and 1/4″ TRS jacks and two front-panel 1/4″ TS instrument inputs. Input impedance, polarity, ground lift, and phantom power are switchable. Connect an outboard compressor or equalizer via the 1/4″ TS insert send and return jacks. Balanced XLR and 1/4″ outputs are fed by output level controls and allow compatibility with most audio interfaces and mixing consoles. The selectable high-pass filter can be set to 50 Hz, 80 Hz, 160 Hz, or 300 Hz for management of unruly bass frequencies.
Dual Channel, Class A, ’73-style British Microphone Preamp with EQ
UK made Carnhill Transformers
UK made – Blore Edwards EQ dual-concentric switch potentiometers
Hand wired, hand assembled
80dB of gain – resistor stepped gain switch
Fully discrete
TONE button – Changes input transformer impedance for varying tone
Polarity switch
48v phantom power
Low Band Boost/Cut – 35, 60, 110, 220 Hz
Mid Band Boost/Cut – 360, 700, 1600, 3200, 4800, 7200 Hz
High Band Boost/Cut – 10, 12, 16 kHz
Additional high band frequency EQ points added (compared to vintage 1073)
4 position inductor based hipass filter – 50, 80, 160, 300 Hz
XLR mic inputs (front & back)
Line level TRS input
TS Send/Receive insert jacks
XLR & TRS line level outputs
Direct In, instrument input
Output control
Led level indication
19″ rackmountable.
Internal IEC 115v/230v power inlet
Rack Height: 2 RU
Number of Channels: 2
Inputs:
2 x XLR 3-pin (balanced)
2 x 1/4″ TRS (balanced)
2 x 1/4″ TS (unbalanced)
Outputs:
2 x XLR 3-pin (balanced)
2 x 1/4″ TRS (balanced)
Phantom Power: 48 V
High-Pass Filter: Off, 50 Hz, 80 Hz, 160 Hz, or 300 Hz
Gain Range: Up to 80 dB
Frequency Response: 20 Hz to 20 kHz (±0.5 dB)
Equivalent Input Noise: -111 dBu (unweighted)
Power Requirement: 115/230 V, 50/60 Hz
Dimensions (WxDxH): 19.0 x 3.5 x 11.0″ / 48.3 x 8.9 x 27.9 cm
Weight: 16 lb / 7.3 kg
