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Heritage Audio HA73jr

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Heritage Audio HA73jr

Microphone Preamplifier Module

Brand New

$899.00

Availability: In stock now

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Product Description for the Heritage Audio HA73jr

The ´73JR is true 1073 style mic preamp in a single 500 series slot with some added features that will cover all the recording needs for engineers and musicians that don´t find the need to track with eq.

Employing only discrete circuitry and conventional components, the ’73 junior is a faithful 3 stage all class A 1073 preamp. Styroflex and tantalum capacitors have been used throughout.  No corners were cut.

A useful all discrete class A hi pass filter has been added, essential for recording everything with the exception of probably  kick drum and and bass.

The Line mode allows for reamping of prerecorded tracks and it´s perfect for adding some class A color to lifeless recordings.

The smart switched DI (automatically switches from MIC to DI mode when inserting a MONO ¼” jack) is an all discrete class A JFET circuit ahead of the MIC transformer, so all the juice is there. Since its introduction in 2013, it has become a classic DI for bass.

Finally, special care has been taken with power handling, implementing internal +24v slow turn on regulation (about 20 seconds to reach full voltage).This makes your 500 series enclosure´s power supply healthier and makes the ´73JR independent of the rest of the slots.

Features

  • 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 : 10K Ohms bridging, transformer balanced and floating.
  • DI input impedance : Greater than 2 Megohms, unbalanced.
  • Output impedance : Less than 75 Ohms, transformer balanced and floating, to drive a load of 600 ohms (factory terminated).
  • Maximum output : Greater than +26dBu into 600 ohms.
  • THD : Less than 0.025% at 1 Khz, 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 : 88 mA per rail @+-16VDC.
SKU HTG-HA73JR
Brand Heritage
Weight 1.0100
Dimensions (WxHxD) No

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