Heritage Audio 1073/500 Preamp/EQ

Heritage Audio


The Neve 1073 in a 500-series format, with zero compromises.




The 1073/500 brings all of the components of the
legendary Neve 1073 preamp/EQ to a 500 series format with absolutely
zero compromises. Heritage Audio took notice of how many competitors
were making concessions to fit their reproduction versions into such a
small package, so they designed 1073/500 to be housed in a 3u wide
module capable of holding all three vintage accurate transformers, dual
concentric switches, pushbuttons and same exact PCB cards. The 1073/500
incorporates a 70dB Class A microphone preamplifier with a 20Hz to 20kHz
frequency response and a high, mid, and low frequency EQ that can be
turned on or off via the front panel button so you can choose to track
with or without the desired EQ settings. You get exactly what the
faceplate says, no downsized knobs, no transformers left out, no ICs in
place of discrete class A circuitry, just a 1073 in a 500 series format.




Features

70dB Class A Microphone preamplifier
Frequency response :20Hz (+0.3dB) to 20Khz (-0.2dB)
All of the same components as the original 1073 in a 3u module
High, mid, low frequency EQ
10dB Class A Line Amplifier, Bridging input impedance, balanced and floating
Class A, single ended, 2N3055 driven high headroom output stage




Bring the legendary sound of the 1073 to your 500-series rack today!








1073/500 Preamp/EQ Specifications:


70dB Class A Microphone preamplifier, HI-LO selectable minimum input
impedance, balanced and floating. High gain positions show a higher
impedance, ideal for old ribbon mics.
10dB Class A Line Amplifier, Bridging input impedance, balanced and floating.
Class A, single ended, 2N3055 driven high headroom output stage.
High Frequency: +/-16dB shelving at 12 kHz, Baxandall type.
Low Frequency: +/-16dB with selectable frequency shelving of 35Hz, 60Hz, 110Hz & 220Hz, Baxandall type.
Mid
Frequency: +/-18dB peaking, fixed 'Q' , selectable center frequencies
of 0.36kHz, 0.7kHz, 1.6kHz, 3.2kHz, 4.8kHz , and 7.2kHz , dual inductor
based.
High Pass Filter: 18dB per octave slope, switchable between 50Hz, 80Hz , 160 Hz & 300Hz, inductor based.
EQ Button: Switches the equalizer on or off.
Phase Button: Flips phase 180º.
Microphone
input impedance: HI, 1200 Ohm minimum, LO, 300 Ohm minimum. Higher gain
positions gradually have greater impedances, optimum for lo gain ribbon
mics. Input is transformer balanced and floating.
Line input impedance: 10KOhms bridging, transformer balanced and floating.
Output impedance: Less than 75 Ohms, transformer balanced and floating, to drive a load of 600 Ohms.
Maximum output: Greater than +26dBm into 600 Ohms, greater than +32dBu into 10KOhms.
THD: Less than 0.025% at 1Khz, Less than 0.05% at 100Hz.
Frequency response :20Hz (+0.3dB) to 20Khz (-0.2dB).






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