Equalizer

Heritage Audio's Symph EQ provides exceptional asymptotic equalization for audio professionals looking for precise, musical control over their mixes. It is a true centerpiece for audio engineers and producers looking for precise and transparent equalization in their musical productions.

ARTICLE N° 93373
  • Heritage Audio Symph EQ
  • Parametric equalizer
  • Balanced & floating inputs and outputs via Carnhill transformer for a vintage sound
  • Class A '73 output stages for authentic sound
  • Notched controls for easy recall of settings
  • Input impedance: 10 KΩ Bridged, balanced & floating via transformer
  • Output impedance: > 75 Ω, balanced & floating via transformer, 600 Ω load
  • Maximum output level: > +26 dBu @ 600 Ω
  • THD: < 0.025% @ 1 kHz, < 0.05% @ 100 Hz
  • Frequency response: 20 Hz (+0.3 dB) ⭢ 20 kHz (-0.2 dB)
  • Noise: < -89 dBu, flat equalization
  • Asymptotic equalization section:
  • High frequency thresholds: 8, 10, 12, 15, 20, 24 kHz
  • Amplification / Attenuation: Max 10.5 dB, steps 0.5 dB
  • Low frequency thresholds: 20, 60, 110, 220, 360, 470 Hz
  • Amplification / Attenuation: Max 10.5 dB, steps 0.5 dB
  • Filter section:
  • 12 dB/octave high pass filter, -3 dB point selectable: 15, 20, 47, 82, 160 Hz
  • Low pass filter 12 dB/octave, 3 dB point selectable: 10, 12, 18, 22, 30 kHz
  • Automatic switching of the side filter to elliptical topology when M/S is activated, @ 6 dB/octave, as with disk cutters
  • Connections:
  • Inputs: 2x XLR
  • Outputs: 2x XLR
  • Power supply: mains adapter provided
  • Standard Rack 19" format: 1 U vertical
  • Dimensions: 482 x 200 x 44 mm
  • Weight: 3 kg
Inspired by the Baxandall EQ topology introduced by Peter Baxandall in 1952, the Symph EQ offers a definitive update to this classic circuit, delivering a natural, tight, and transparent sound.

Designed for use in mastering and on mix buses, the Symph EQ is equipped with 12dB/octave slope high-pass and low-pass filters to effectively control sub-low and ultra-high frequencies. Cut and boost knobs allow precise adjustments up to 10.5 dB in 0.5 dB increments, providing maximum flexibility in shaping the sound.

The Symph EQ's most notable feature is its Mid Side (M/S) mode processing capability, allowing the center and sides of the signal to be processed independently. This allows precise control of center bass management and high-frequency boost on panning sources without affecting core elements such as vocals or snare.

With its exclusive Carnhill Oxford input transformers and 73-style Class A output amplifiers, the Symph EQ delivers a rich, warm sound that evokes the most beloved consoles and vintage gear. Plus, its step controls make settings easy to recall for professional studio use.

Enjoy the legendary sound of classic equalizers with a modern update to meet the highest demands on audio quality.
Number of tapes
 10
19" rack
 1U, Kit 19" included
Power supply
 Power adapter (included)