Overview

Stereo Bus Compressor

The Heritage Audio Successor is a true stereo bus compressor with matched channels for precise left-right compression and virtually no channel offset. In addition to the single-ended Class A output stage in the style of the legendary 1073 amplifier circuitry, the Successor relies on transformer-coupled, balanced inputs and outputs based on a Carnhill transformer for an additional vintage character. The diode bridge circuit adds 2nd order harmonic distortion characteristics and true vintage tone while eliminating nasty odd harmonic content.

Thanks to its modern circuit design, the Successor offers ultra-fast attack and release times never found in vintage designs and allows even FET-style bus compression with significant loudness maximization, without affecting the transients by sound artifacts that occur. Furthermore, the bus compressor shines with versatile sidechain options. Not only the usual high-pass filters are available, but also various peak filters in the mid-band for particularly flexible bus compression. The Sidechain SEND and RETURN connectors also allow external sidechain signals and further external processing of the internal one. In addition, the Successor's rasterized blend control enables parallel compression including the Blend ON/OFF button for direct comparison between wet and dry signals.

Product Details

  • True Stereo Bus Compressor
  • Matched channels for extremely precise left/right tracking with nearly zero offset
  • Oxford style compression tracking (highest signal takes over compression)
  • Carnhill based, transformer coupled balanced inputs and outputs for added character and vintage vibe.
  • ´73 style class A output stages
  • Diode-bridge based compression with vintage style 2nd order harmonic distortion characteristics
  • Ultra-fast attack and release time options
  • Complex sidechain filtering options (high pass filters and mid band peak type filters)
  • Sidechain SEND and RETURN connections
  • Blend control offers built-in parallel compression and blend ON/OFF button for instant comparison
  • Stepped controls for easy recall of settings
Line input impedance
10 kOhms, transformer balanced
Output impedance
< 75 Ohms, transformer balanced
Frequency response
20Hz to 20kHz
Threshold
20 to 20 dBu
Ratio
1.5:1 to 20:1
Attack
50µs to 20ms
Release
25ms to 400ms, 2x Auto programm dependend
Sidchain filter
off, High-pass: 80, 160, 5000 Hz, Peak, 1k, 3kHz
Gain makup
0 to 10 dB, steps of 2 dB
Power requirements
100 - 240 VAC (external, universal PSU)
Dimension
19", 1 U