Preamps

A gem for engineers and musicians seeking authentic vintage sound, the Heritage Audio 500 Series 73 JR II mic preamp is the perfect companion for giving your recordings a touch of classic warmth and character, directly inspired by consoles from the 70s. Delivering a true vintage sound experience, this preamp is the perfect choice for bringing your recordings to life with unrivaled warmth and texture.

ARTICLE N° 93387
  • Heritage Audio 73 JR II
  • Preamp
  • 500 Series
  • Microphone input impedance: HI=1200 Ω min, LO=300 Ω min
  • Higher gain positions have progressively larger Ωs
  • perfect for low gain ribbon mics
  • Balanced & floating input via transformer
  • Line input impedance: 10 kΩ Bridged, balanced & floating via transformer
  • DI input impedance: > 2 MΩ, Unbalanced
  • Output impedance: < 75 Ω, balanced & floating via transformer, 600 Ω
  • Max output: > +26 dBu @ 600 Ω
  • DHT: < 0.025% @ 1 kHz, < 0.05% @ 100 Hz
  • Frequency response: 20 Hz ⭢ 20 kHz
  • Max gain: > 80 dB
  • Noise: < -125 dBu (EIN)
  • Power consumption: 86 mA per rail ±16 V DC
  • Dimensions: 135 x 150 x 38 mm
  • Weight: 100 g
With its three fully discrete gain stages and fully Class A design, the 73 JR II offers up to 80 dB of gain, without compromising on sound quality. Styroflex and tantalum capacitors ensure faithful sound reproduction, while the high-pass filter adjustable from 20 to 220 Hz helps tighten the bass without affecting the desired frequencies.

Featuring intelligent DI switching and a line mode for re-amping pre-recorded tracks, the 73 JR II offers exceptional flexibility for any recording situation. In addition, its internal +24 V power supply ensures progressive regulation for optimal performance independent of other slots.

Exclusive Carnhill transformers, used on both input and output, give the 73 JR II its distinctive character. These transformers, custom-made for Heritage Audio, guarantee incomparable sound quality, making the 73 JR II the obvious choice for sound purists.

If you're looking for a 500 Series mic preamp that doesn't compromise on sound quality and authenticity, Heritage Audio's 73 JR II is the ideal solution.
Canals
 1
Power supply
 Via Rail (+16V / -16V)
Phase opposition
 Yes