The Blow 000-E8J00-00010 audio processor combines a compressor and limiter in a 500 Series format, with dynamic Presence control to preserve high-mid frequencies during compression. The Presence setting adds “air” to vocals without unwanted noise or pumping, and reduces the risk of feedback during live performances. It features manual envelope controls with peak-sensing compression or automatic operation with RMS compression.

The compressor response can be set to soft knee or hard knee, while the sidechain high-pass filter limits unwanted low-frequency compression artifacts. Balanced mono input and output, gain-reduction and signal-level metering, and hardware bypass complete its functionality.

• Type: Compressor and limiter
• Format: 500 Series
• Presence control: Dynamic, from minimum to maximum
• Threshold: -50 dBu to +25 dBu
• Compression ratio: From 1:1
• Attack time: 0.1 ms to 20 ms
• Release time: 50 ms to 2 s
• Make-up gain: 0 dB to +18 dB
• Compressor response: Soft knee or hard knee
• Sidechain filter: High-pass
• Compression mode: Manual or automatic
• Input: Mono, balanced line
• Output: Mono, electronically balanced
• Frequency response: 20 Hz–20 kHz, ±0.5 dB
• Input impedance: 20 kΩ at 1 kHz
• Common-mode rejection ratio: -70 dB at 1 kHz, typical
• Noise at unity gain: -95 dBu at 22 Hz–22 kHz
• Bypass: Hardware bypass switch
• Metering: Gain reduction and signal level