If there is an EQ preamp that is acclaimed by sound engineers and defines the pop/rock sound of the last 50 years, it's 1073. It has been widely used on stage and in the studio for dozens of years and is now considered mythical. The Warm Audio WA73 series offers the reincarnation of this classic British preamplifier in four versions with one or two channels (with and without EQ), which pays tribute to the original circuit.
Features
Hand-assembled and hand-wired with discrete components
Carnhill Transformer made in England
Blore Edwards concentric potentiometer/concentric switch made in England
80 dB gain, adjustable via rotary switch
Tone switch, modifies transformer input impedance
Polarity switch
Switch for phantom power supply 48V
EQ 3 inductance bands
Low boost/cut: 35,60,110,220 Hz
Medium boost/cut: 360,700,1600,3200,4800,7200 Hz
Aigue boost/cut: 10,12,16 kHz (additional frequencies compared to 1073 Vintage)
High-pass filter with 4-stage switchable inductance (50,80,160,300 Hz)
XLR microphone input (rear and front panel)
Balanced 6.35 mm balanced line input jack
Send and Receive insert in unbalanced 6.35 mm jack
Instrument input (DI) on front panel
Output level control
Level LED indicator
Frequency response 20 Hz - 20 kHz (+/- 0.5 dB)
19 "Rackable 19" Rackable
Ground Lift Switch
Internal power supply 115V/230V
Dimensions (W x H x D): 630 x 380 x 140 mm
Weight: 6.8 kg
Brand reference number:
7248523W13004
en 
