AT A GLANCE |
- 80dB 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 selectable frequency shelving at 10, 12 or 16 kHz, Baxandall type.
- Low Frequency: +/-16dB with selectable frequency shelving of 35Hz, 60Hz, 110Hz & 220Hz, Baxandall type.
- 1081 Upper Mid Frequency: +/-18dB peaking, fixed 'Q' , selectable centre frequencies of 1.5Khz, 1.8kHz, 2.2Khz, 2.7kHz, 3.3Khz, 3.9kHz, 4.7kHz, 5.6kHz, 6.8kHz and 8.2Khz, inductor based.
- 1081 Lower Mid Frequency: +/-18dB peaking, fixed ´Q´, selectable centre frequencies of 220Hz, 270Hz, 330Hz, 390Hz, 470Hz, 560Hz, 680Hz, 820Hz, 1000Hz and 1200Hz, , inductor based.
- High Pass Filter: 18dB per octave slope, switchable between 50Hz, 80Hz & 300Hz, inductor based. (Although push-button switches has been used instead of the classic rotary switch, the circuit is the same exact one found in vintage 1073s, sacrificing only one frequency choice for space issues. Real state is tight inside these modules).
- EQ Button: Switches the equalizer on or off.
- Phase Button: Flips phase180º.
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