Red Square Audio

The heart of the Apex GX-130 equaliser is a bank of 30 constant-Q bandpass filter made with Dynamically Laser Trimmed (DLT) hybrid circuits.

The GX-130 equaliser has also frequency adjustable high-pass and low-pass filters.

Apex’s GX 230 has been an industry standard for many years.
The heart of Apex GX-230 equaliser is a bank of 30 constant-Q bandpass filters made with Dynamically Laser Trimmed (DLT) hybrid circuits per channel. The GX-230 equaliser has also two switch-able fixed 30 Hz high-pass filters.

The heart of the Apex GX-215 equaliser is a bank of 15 constant-Q bandpass filter made with Dynamically Laser Trimmed (DLT) hybrid circuits per channel.
The GX-215 equaliser has also a switch-able fixed 30 Hz high-pass filter.