Baxandall's Ultimate Update

Put the Heritage Audio Symph EQ on your master bus and you'll infuse your mixes with sweet-sounding highs and natural, tight bass. This stereo asymptotic shelving EQ offers an exciting upgrade to classic Baxandall-style units, with 0.5dB precision rotary controls and MS processing for hyper-accurate tone shaping that's guaranteed to elevate your projects. Symph EQ delivers super-transparent sound with near-zero phase shifts and other sonic artifacts, and it's as simple to use as the bass and treble controls on an old stereo system. The Symph EQ features state-of-the-art Carnhill transformers, 73 Class A output stages and gold-plated XLR connectors.

Asymptotic stereo equalization explained

Symph EQ is an asymptotic stereo equalizer, in which the boost or cut amplitude of its shelf curves increases until the asymptotic value is reached. These curves ensure that the unit's ultra-high and sub-low frequencies remain well controlled. The end result sounds strong, sweet and natural, with exceptionally low phase deviation. It's this level of sonic transparency that makes Symph EQ ideal for mastering tasks.

MS processing enables an unprecedented level of precision

We're impressed with the level of precision of the Heritage Audio Symph EQ. All of its controls use high quality rotary switches with 0.5dB precision. Built-in MS processing allows you to manage center bass with complete precision as well as high-pan sources without affecting the centers. Additionally, when in MS mode, the unit's side high-pass filter is similar to the elliptical-type filters employed by older disc cutters.

High-quality components achieve high-fidelity sound

Symph EQ is built with state-of-the-art components. Carnhill input and output transformers ensure robust, high-fidelity sound, while Type 73 Class A output stages further minimize unwanted distortion. You also get balanced, ungrounded I/O and gold-plated XLR connectors to ensure solid connections.

Characteristics

• Stereo Shelf EQ offers an exciting upgrade to classic Baxandall-style units;
• Super-transparent sound with near-zero phase shifts — great for mastering;
• Asymptotic EQ curves ensure well-controlled ultra-high and sub-low frequencies;
• High-quality, 0.5 dB precision rotary switches provide unprecedented accuracy;
• Built-in MS processing allows precise management of center bass and high pan sources without affecting the centers;
• The side high-pass filter in MS mode is similar to the elliptical-type filters employed by early disc cutters;
• 2-pole high-pass and low-pass filters make cleaning sources easier;
• Carnhill input and output transformers ensure robust, high-fidelity sound;
• 73 Class A output stages further minimize unwanted distortion;
• Balanced, ungrounded I/O and gold-plated XLR connectors ensure solid connections.

Specifications

• Type: Solid State EQ;
• Number of channels: 1;
• Bypass: yes;
• Number of bands: 2;
• High-pass filter: yes;
• Low-pass filter: yes;
• Boost/cut range: ±10.5dB;
• High frequency range: 8kHz–24kHz;
• Low frequency range: 20Hz–470Hz;
• Inputs: 2 x XLR (L/R);
• Outputs: 2 x XLR (L/R);
• Frequency response: 15Hz–30kHz (±0.5);
• Rack spaces: 1U;
• Power source: external power supply (included).