BBE 362NR Sonic Maximizer with Noise Reduction. Includes rak mount bolts/washers.

Excellent physical and working condition. Includes rack mount bolts/washers. The BBE 362NR is a 1U rack-mount audio processor that combines BBE Sonic Maximizer circuitry with an independent single-ended Dynamic Noise Reduction (DNR) system. Designed primarily for -10dBV applications, it clarifies, brightens, and adds fullness to sound while taming unwanted hiss and background noise. The unit operates in two distinct parts, which can be engaged separately or together: [1]1. Sonic Maximizer ProcessorLoudspeakers naturally introduce phase and amplitude distortion, often causing high frequencies to lag behind low frequencies, resulting in a muddy or smeared sound. The Sonic Maximizer corrects this by splitting the audio into three frequency bands. It delays the low and mid frequencies while dynamically adjusting the amplitude of the high frequencies. This process time-aligns the signal so that all frequencies reach the ear simultaneously, resulting in improved clarity, punch, and detail. Controls include: Process: Controls the level of phase compensation and high-frequency harmonic enhancement. Lo Contour: Adjusts the phase and amplitude of the low frequencies (around 50 Hz) for a tighter, deeper bass response. 2. Noise Reduction (NR)Because the Sonic Maximizer's harmonic enhancement can sometimes brighten existing background noise (like tape hiss), the 362NR includes a dedicated DNR circuit. This circuit acts as a frequency-conscious low-pass filter that dynamically closes and cuts high-frequency hiss when the input signal level drops. Controls include: Threshold: Determines the point at which the noise reduction activates. Release: Adjusts how quickly the noise reduction filter opens up when a new signal is detected. Specifications & Connections Inputs/Outputs: Unbalanced 1/4" jacks and RCA. Headroom: +16dBu. THD (Total Harmonic Distortion): Less than 0.1% at 1kHz. Bypass: Hardwire bypass switch for instant a/b comparison between processed and unprocessed signals. Users often find the 362NR highly effective in instrument racks (for guitar, bass, or keyboards), studio mastering setups, and in restoring old cassette or tape recordings.