Heritage Audio 6673 - 6673 Mic Preamp and 4 band EQ

Heritage Audio 6673 - 6673 Mic Preamp and 4 band EQ

The Heritage Audio 6673 is a microphone pre-amp and 4 band EQ modelled around the famous 1073 and 1066 units. The 6673 features the mid band from the 1066 unit, with the expanded 1073 mid band, enabling complex equalisation whist retaining the same sonic qualities. The 6673 fits the 80 series form factor of the original 1073, suited to the Heritage Audio Frame 8 and Rack 2 powered chassis.

Specifications

• 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 +26dBu into 600 Ohms, 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.
• Noise: Less than -100dBu.
• Power consumption: Less than 110 mA @24VDC.