The SR24 is a two-channel, four-band equalizer in a two-rack space chassis. With a dedicated button and/or switch for each control function, the SR24 is easy to use; By utilizing continuously variable controls for frequency and boost/cut, the SR24 can be very precise in applying equalization to selected audio material.

The SR24 circuit design is deeply rooted in API history. From the late 1970s to the early 1980s, an audio company called “APSI” manufactured consoles and equalizers. Its 562 module was a 4-band fully parametric equalizer designed by APSI and sold through API. Over the past few decades, these equalization modules have remained a favorite among many studio engineers, but they have become increasingly difficult to find. The SR24 is a faithfully redesigned version of the original 562, offering the user 2 channels of classic analog EQ in a rackmount unit.

Characteristics

• 4 EQ bands modeled after the classic APSI 562 EQ model;
• Each band offers continuously variable frequency and gain control using separate knobs;
• 12dB of boost/cut per band;
• All 4 bands are parametric peak/dipping configuration;
• Customized transformer balanced output;
• XLR and 1/4 inch input and output. fully balanced;
• Massive headroom +24dB clip level.

Specifications

• Type: solid state;
• Number of channels: 2;
• Number of bands: 4;
• Boost/cut range: ±12dB;
• High frequency range: 2kHz–20kHz;
• Hi-Mid Freq Range: 500Hz–5kHz;
• Lo-Mid Freq Range: 100Hz–1kHz;
• Low frequency range: 20Hz–200Hz;
• Inputs: 2 x XLR, 2 x 1/4 in;
• Outputs: 2 x XLR, 2 x 1/4 in;
• Frequency response: 20Hz–20kHz;
• Rack spaces: 2U;
• Power source: standard IEC AC cable;