API Audio 525 Compressor – exact reissue of 1970s feedback-type compressor/limiter for 500 Series racks. Uses 2510/2520 op-amps for reliability. Variable threshold/output, "Ceiling" control links threshold/makeup gain. Ratios 2:1 (compression)/20:1 (limit), fixed attack (15μs), 4 auto release modes (0.1/0.5/1.5/2.0s). De-Ess inserts vocal energy filter for sibilance/pop reduction.
Hard-wire bypass, balanced input/output, linkable for multi-channel. VU meter for GR, suitable for tracking/mixdown/program compression.
MAIN FEATURES
- Feedback compressor/limiter
- "Ceiling" fine-tune function
- De-Ess filter
- 4 release modes
- Hard-wire bypass
- Linkable channels
- Discrete circuit
TECHNICAL SPECIFICATIONS
- Ratios: 2:1/20:1
- Attack: 15μs fixed
- Release: 0.1/0.5/1.5/2.0s auto
- Format: 500 Series single-slot
- Power: 500 Series slot
- Dimensions: Standard module
