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- Fits API 500 Series racks
- 80 dB Class A Microphone Preamplifier
- 10 dB Class A Bridgeable Line Amplifier
- Balanced and Floating Input Impedance
- HF Baxandall Shelf: 12,000 Hz
- LF Baxandall Shelf: 35, 60, 110, 220 Hz
- Classic 1073 Mid Frequency EQ
- High-Pass Filter
- EQ Button for Toggling On and Off
- Phase Button Flips Signal 180 Degrees
- Requires API style 500 series rack / power supply for operation
Heritage Audio 1073/500 overviewThe Heritage Audio 1073/500 API 500 Series Microphone Preamplifier Module
is a 500 series compatible 80 dB microphone and 10 dB line recording
reproduction module based on the vintage 1073 designed by Rupert Neve.
The remake is intended for recording engineers who want the classic Neve
sound.
This module features the same Class A circuitry, the same
specifications, and the same construction techniques used in the
original 1073. In order to fit all of the same components from the
original 80 series console 1073 preamplifier in the form factor of an
API 500 series lunchbox, the module was designed to be 3 units wide.
This way the module can contain all three of the vintage-accurate
transformers, pushbuttons, dual concentric switches, and printed circuit
boards.
The preamplifier supports selectable HI-LO minimum balanced and floating
input impedances that accommodate a range of microphone types including
vintage ribbons. It includes a ±16 dB selectable low-frequency
Baxandall shelving EQ at 35 Hz, 60 Hz, 110 Hz, and 220 Hz. For middle
frequencies, the unit includes a dual inductor-based ±18 dB peaking
fixed 'Q' equalizer with center frequencies at 360 Hz, 700 Hz, 1600 Hz,
3200 Hz, 4800 Hz, and 7200 Hz. An 18 dB per octave slope inductor-based
high-pass filter switch allows you to cut below 50 Hz, 80 Hz, 160 Hz, or
300 Hz depending on the application. An EQ button allows for the
equalizer to be turned on or off and a phase button allows you to flip
the signal 180°.
Heritage Audio 1073/500 walk through
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| Controls |
• 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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800-834-5986
