Heritage HA-81 Elite
Heritage HA-81 Elite: Classic British console preamp and EQ.
- Channel strip that combines an all discrete Class-A 73-style mic preamp and a console style EQ
- Hybrid design based on 2 legendary designs
- All discrete, Class-A circuit featuring Carnhill and St. Ives input and output transformers
- Full-featured 73-style mic preamp
- Full-featured 81-style EQ
- Microphone input impedance:
- HI, 1200 Ω minimum
- LO, 300 Ω minimum
- Optimum for low 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 +26.5dBu into 600 Ohms (internally terminated)THD: Less than 0.025% at 1Khz, Less than 0.05% at 100Hz.
- Frequency response:20Hz (+0.3dB) to 20Khz (-0.2dB).
- Maximum Gain: Slightly greater than 80dB.
- Equivalent Input Noise: Less than -125dBu at 80dB mic gain.
- Output stage noise: Less than -100dBu.
- Power consumption: Less than 150 mA @48VDC.
- More info here.