Interphase Audio Carbon 4-Band Capacitive Equaliser
Interphase Audio Carbon is your go-to EQ for shaping tone with confidence. It gives you a classic capacitive equaliser design with a modern, high-quality build, so you can boost, cut, and refine sounds with ease.
This EQ uses four wide, overlapping bands that let you work broadly or surgically, depending on the job. As a result, you can reduce problem frequencies or add extra energy where a mix needs it most. The HF and LF bands also include Peak and Shelf options, which gives you more control over the top and bottom ends. In addition, that flexibility makes Carbon ideal for adding punch, depth, and clarity without losing musicality.
Carbon uses a full Class-A, discrete circuit design. Every component is carefully selected and matched, so the EQ delivers a smooth, musical response. Moreover, the design focuses on straightforward operation, which helps you move quickly while still achieving detailed results. Carbon is built for engineers who want an easy workflow and a distinctive sound.
Here’s how the bands work:
- HF Band: sweeps from 1.2 kHz to 22 kHz and includes a Peak / Shelf switch.
- HM Band: sweeps from 0.5 kHz to 8 kHz.
- LM Band: sweeps from 100 Hz to 1.8 kHz.
- LF Band: sweeps from 25 Hz to 440 Hz and includes a Peak / Shelf switch.
Each band offers up to 15 dB of cut or boost, so you can make subtle corrections or bold tonal moves. Therefore, Carbon works well on tracks that need control, character, or both. It handles broad tone shaping and focused correction with equal confidence.
If you want a versatile analogue EQ with a classic feel and a clear workflow, Interphase Audio Carbon is an excellent choice. It brings together sound quality, flexibility, and simple operation in one powerful unit. In short, Carbon is designed to become the EQ you reach for first.
Specifications
• Input impedance: 30kohm
• Common mode rejection: 80dB
• Distortion: 0.001% (+4dBu output, 1kHz)
• Frequency response: 7Hz to 70kHz (-3dB)
• Boost / Cut range: +/-15dB (continuously variable)
• HF Frequency: 1.2 kHz – 22 kHz (continuously variable)
• HMF Frequency: 0.5 kHz – 8 kHz (continuously variable)
• LMF Frequency: 100 Hz – 1.8 kHz (continuously variable)
• LF Frequency: 25 Hz – 440 Hz (continuously variable)
• Filter Q: 1.2 (just over 1 octave)
• Maximum input level (500 module): +28dBu
• Maximum input level (Octa module): +32dBu
• Maximum output level (500 module): +28dBu (10k load)
• Maximum output level (Octamodule): +32dBu (10k load)
• Nominal input and output level: +4dBu (electronically balanced)
• Output impedance: 100 ohm
• Noise floor (typical, unweighted, EQ on): -80dBu
• Noise floor (unweighted, EQ off): -100dBu
• I/O connections (Rack XLRs): pin 2 +, pin 3 -, pin 1 ground
• Current requirement: 111mA (maximum) per rail
• Size and weight: Standard 500 Series, 0.6 kilos
Related Products
Carbon is available as an Octa module or a 500 module, with Silver or Black faceplates.
